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1

Modeling-Computer Simulations At San Juan Volcanic Field Area...  

Open Energy Info (EERE)

Login | Sign Up Search Page Edit History Facebook icon Twitter icon Modeling-Computer Simulations At San Juan Volcanic Field Area (Clarkson & Reiter, 1987) Jump to:...

2

San Juan Volcanic Field Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

San Juan Volcanic Field Geothermal Area San Juan Volcanic Field Geothermal Area (Redirected from San Juan Volcanic Field Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: San Juan Volcanic Field Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (3) 10 References Area Overview Geothermal Area Profile Location: Colorado Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0

3

San Juan Volcanic Field Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

San Juan Volcanic Field Geothermal Area San Juan Volcanic Field Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: San Juan Volcanic Field Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (3) 10 References Area Overview Geothermal Area Profile Location: Colorado Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

4

Modeling-Computer Simulations At San Juan Volcanic Field Area (Clarkson &  

Open Energy Info (EERE)

Modeling-Computer Simulations At San Juan Volcanic Field Area (Clarkson & Modeling-Computer Simulations At San Juan Volcanic Field Area (Clarkson & Reiter, 1987) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At San Juan Volcanic Field Area (Clarkson & Reiter, 1987) Exploration Activity Details Location San Juan Volcanic Field Area Exploration Technique Modeling-Computer Simulations Activity Date Usefulness useful DOE-funding Unknown Notes In this study we combine thermal maturation models, based on the level of maturation of the Fruitland Formation coals, and time-dependet temperature models, based on heat-flow data in the San Juan region, to further investigate both the thermal history of the region and the nature of the influence of the San Juan volcanic field thermal source on the thermal

5

Isotopic Analysis At San Juan Volcanic Field Area (Larson & Jr, 1986) |  

Open Energy Info (EERE)

Isotopic Analysis At San Juan Volcanic Field Area (Larson & Jr, 1986) Isotopic Analysis At San Juan Volcanic Field Area (Larson & Jr, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Rock At San Juan Volcanic Field Area (Larson & Jr, 1986) Exploration Activity Details Location San Juan Volcanic Field Area Exploration Technique Isotopic Analysis- Rock Activity Date Usefulness not indicated DOE-funding Unknown Notes Oxygen isotopes. References Peter B. Larson, Hugh P. Taylor Jr (1986) An Oxygen Isotope Study Of Hydrothermal Alteration In The Lake City Caldera, San Juan Mountains, Colorado Retrieved from "http://en.openei.org/w/index.php?title=Isotopic_Analysis_At_San_Juan_Volcanic_Field_Area_(Larson_%26_Jr,_1986)&oldid=687474" Categories: Exploration Activities

6

Rock Sampling At San Juan Volcanic Field Area (Larson & Jr, 1986) | Open  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Rock Sampling At San Juan Volcanic Field Area (Larson & Jr, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Rock Sampling At San Juan Volcanic Field Area (Larson & Jr, 1986) Exploration Activity Details Location San Juan Volcanic Field Area Exploration Technique Rock Sampling Activity Date Usefulness not indicated DOE-funding Unknown Notes More than 300 samples were collected from within and adjacent to the Lake City caldera. All specimens consist of single hand samples, approximately 1 kg in size. Care was taken to avoid oxidized or weathered rocks. Twenty

7

The Thermal Regime Of The San Juan Basin Since Late Cretaceous Times And  

Open Energy Info (EERE)

Regime Of The San Juan Basin Since Late Cretaceous Times And Regime Of The San Juan Basin Since Late Cretaceous Times And Its Relationship To San Juan Mountains Thermal Sources Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: The Thermal Regime Of The San Juan Basin Since Late Cretaceous Times And Its Relationship To San Juan Mountains Thermal Sources Details Activities (1) Areas (1) Regions (0) Abstract: Heat-flow and coal-maturation data suggest that the thermal history of the San Juan Basin has been influenced by magmatic and volcanic activity in the San Juan Mountains-San Juan volcanic field located to the north of the Basin. Time-dependent isothermal step models indicate that the observed heat flow may be modelled by a (near) steadystate isothermal step extending from 30-98 km depth whose edge underlies the northern San Juan

8

Ground Gravity Survey At San Francisco Volcanic Field Area (Warpinski...  

Open Energy Info (EERE)

Ground Gravity Survey At San Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Exploration Activity Details Location San Francisco Volcanic Field Area Exploration Technique...

9

Geothermal Literature Review At San Francisco Volcanic Field Area (Morgan,  

Open Energy Info (EERE)

Morgan, Morgan, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review At San Francisco Volcanic Field Area (Morgan, Et Al., 2003) Exploration Activity Details Location San Francisco Volcanic Field Area Exploration Technique Geothermal Literature Review Activity Date Usefulness not indicated DOE-funding Unknown References Paul Morgan, Wendell Duffield, John Sass, Tracey Felger (2003) Searching For An Electrical-Grade Geothermal Resource In Northern Arizona To Help Geopower The West Retrieved from "http://en.openei.org/w/index.php?title=Geothermal_Literature_Review_At_San_Francisco_Volcanic_Field_Area_(Morgan,_Et_Al.,_2003)&oldid=510822" Category: Exploration Activities What links here

10

Data Acquisition-Manipulation At San Francisco Volcanic Field Area  

Open Energy Info (EERE)

At San Francisco Volcanic Field Area At San Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At San Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Exploration Activity Details Location San Francisco Volcanic Field Area Exploration Technique Data Acquisition-Manipulation Activity Date Usefulness not indicated DOE-funding Unknown Notes Northern Arizona University has re-assessed the existing exploration data, geologically mapped the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify potential drilling targets and sites. Further work may occur in 2004 or 2005. References

11

San Francisco Volcanic Field Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

San Francisco Volcanic Field Geothermal Area San Francisco Volcanic Field Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: San Francisco Volcanic Field Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (6) 10 References Area Overview Geothermal Area Profile Location: Arizona Exploration Region: Other GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

12

Identification and characterization of Hydraulic Flow Units in the San Juan Formation, Orocual Field, Venezuela  

E-Print Network (OSTI)

This thesis focuses on the integration of core and well log data in order to provide a petrophysical characterization of the Hydraulic Flow Units (HFU) in the San Juan Formation, Orocual Field, Venezuela. We used three separate approaches to correlate/ integrate these data from Orocual Field. The first method uses the concept of Hydraulic Flow Units (HFU). The second method uses non-parametric transformation and regression, and the third method estimates permeability using polynomial and power law-type functions. We provide a comparison of these methods - and we believe that the HFU and non-parametric regression techniques give the most representative results. In this study we have core data for four wells and well log data for sixteen wells. The core permeability data were adjusted (in this work) to compensate for the Klinkenberg effect (a low pressure gas flow phenomena) and to relate porosity and permeability from laboratory to in-situ (net overburden stress) conditions. To model the stress correction we use the original reservoir pressure of 7470 psia and a two-point stress model. For well logs, we use a quality control method based on depth shift, depth match, environmental corrections, and core-log correlation. Finally, core permeability data were correlated to multiple well log suites (density, neutron, gamma ray, and resistivity). The HFU concept provides a deterministic approach for combining the geological attributes with available petrophysical data to delineate the reservoir into "units" of similar fluid flow characteristics. The HFU method does not presume a relationship between variables. The non-parametric regression/transform technique is based on using variable transformations to generate relationship between dependent and independent variables. This iterative, non-parametric procedure is called the Alternating Conditional Expectation (or ACE) method. Additional deterministic models based on polynomial, power law, and modified power law relations are also used to estimate permeability. The methodologies demonstrated in this work can be applied to any reservoir system having a significant population of permeability measurements and well log data.

Deghirmandjian, Odilia

2001-01-01T23:59:59.000Z

13

Field Mapping At San Francisco Volcanic Field Area (Warpinski, Et Al.,  

Open Energy Info (EERE)

4) 4) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At San Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Exploration Activity Details Location San Francisco Volcanic Field Area Exploration Technique Field Mapping Activity Date Usefulness not indicated DOE-funding Unknown Notes Northern Arizona University has re-assessed the existing exploration data, geologically mapped the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify potential drilling targets and sites. Further work may occur in 2004 or 2005. References N. R. Warpinski, A. R. Sattler, R. Fortuna, D. A. Sanchez, J. Nathwani (2004) Geothermal Resource Exploration And Definition Projects

14

Rock Sampling At San Francisco Volcanic Field Area (Warpinski, Et Al.,  

Open Energy Info (EERE)

San Francisco Volcanic Field Area (Warpinski, Et Al., San Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Rock Sampling At San Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Exploration Activity Details Location San Francisco Volcanic Field Area Exploration Technique Rock Sampling Activity Date Usefulness not indicated DOE-funding Unknown Notes Northern Arizona University has re-assessed the existing exploration data, geologically mapped the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify potential drilling targets and sites. Further work may occur in 2004 or 2005. References N. R. Warpinski, A. R. Sattler, R. Fortuna, D. A. Sanchez, J.

15

Hot Dry Rock Geothermal Energy In The Jemez Volcanic Field, New Mexico |  

Open Energy Info (EERE)

Rock Geothermal Energy In The Jemez Volcanic Field, New Mexico Rock Geothermal Energy In The Jemez Volcanic Field, New Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Hot Dry Rock Geothermal Energy In The Jemez Volcanic Field, New Mexico Details Activities (2) Areas (1) Regions (0) Abstract: Large, young calderas possess immense geothermal potential due to the size of shallow magma bodies that underlie them. Through the example of the Valles and Toledo calderas, New Mexico, and older, more deeply eroded and exposed calderas, it is possible to reconstruct a general view of geothermal environments associated with such magmatic systems. Although a zone of anomalous heat flow extends well beyond caldera margins, high- to moderate-temperature hydrothermal systems appear to be restricted to zones

16

Ground Magnetics At San Francisco Volcanic Field Area (Warpinski, Et Al.,  

Open Energy Info (EERE)

Warpinski, Et Al., Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Magnetics At San Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Exploration Activity Details Location San Francisco Volcanic Field Area Exploration Technique Ground Magnetics Activity Date Usefulness not indicated DOE-funding Unknown Notes Northern Arizona University has re-assessed the existing exploration data, geologically mapped the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify potential drilling targets and sites. Further work may occur in 2004 or 2005. References N. R. Warpinski, A. R. Sattler, R. Fortuna, D. A. Sanchez, J.

17

Ground Gravity Survey At San Francisco Volcanic Field Area (Warpinski, Et  

Open Energy Info (EERE)

4) 4) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At San Francisco Volcanic Field Area (Warpinski, Et Al., 2004) Exploration Activity Details Location San Francisco Volcanic Field Area Exploration Technique Ground Gravity Survey Activity Date Usefulness not indicated DOE-funding Unknown Notes Northern Arizona University has re-assessed the existing exploration data, geologically mapped the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify potential drilling targets and sites. Further work may occur in 2004 or 2005. References N. R. Warpinski, A. R. Sattler, R. Fortuna, D. A. Sanchez, J. Nathwani (2004) Geothermal Resource Exploration And Definition Projects

18

The Lathrop Wells volcanic center: Status of field and geochronology studies  

SciTech Connect

The purpose of this paper is to describe the status of field and geochronology studies of the Lathrop Wells volcanic center. Our perspective is that it is critical to assess all possible methods for obtaining cross-checking data to resolve chronology and field problems. It is equally important to consider application of the range of chronology methods available in Quaternary geologic research. Such an approach seeks to increase the confidence in data interpretations through obtaining convergence among separate isotopic, radiogenic, and age-correlated methods. Finally, the assumptions, strengths, and weaknesses of each dating method need to be carefully described to facilitate an impartial evaluation of results. The paper is divided into two parts. The first part describes the status of continuing field studies for the volcanic center for this area south of Yucca Mountain, Nevada. The second part presents an overview of the preliminary results of ongoing chronology studies and their constraints on the age and stratigraphy of the Lathrop Wells volcanic center. Along with the chronology data, the assumptions, strengths, and limitations of each methods are discussed.

Crowe, B.; Morley, R. [Los Alamos National Laboratory, Las Vegas, NV (United States); Wells, S. [California Univ., Riverside, CA (United States); Geissman, J.; McDonald, E.; McFadden, L.; Perry, F. [New Mexico Univ., Albuquerque, NM (United States); Murrell, M.; Poths, J. [Los Alamos National Lab., NM (United States); Forman, S. [Ohio State Univ., Columbus, OH (United States)

1992-03-01T23:59:59.000Z

19

Using Cable Suspended Submersible Pumps to Reduce Production Costs to Increase Ultimate Recovery in the Red Mountain Field of the San Juan Basin Region  

Science Conference Proceedings (OSTI)

A joint venture between Enerdyne LLC, a small independent oil and gas producer, and Pumping Solutions Inc., developer of a low volume electric submersible pump, suspended from a cable, both based in Albuquerque, New Mexico, has re-established marginal oil production from Red Mountain Oil Field, located in the San Juan Basin, New Mexico by working over 17 existing wells, installing cable suspended submersible pumps ( Phase I ) and operating the oil field for approximately one year ( Phase II ). Upon the completion of Phases I and II ( Budget Period I ), Enerdyne LLC commenced work on Phase III which required additional drilling in an attempt to improve field economics ( Budget Period II ). The project was funded through a cooperative 50% cost sharing agreement between Enerdyne LLC and the National Energy Technology Laboratory (NETL), United States Department of Energy, executed on April 16, 2003. The total estimated cost for the two Budget Periods, of the Agreement, was $1,205,008.00 as detailed in Phase I, II & III Authorization for Expenditures (AFE). This report describes tasks performed and results experienced by Enerdyne LLC during the three phases of the cooperative agreement.

Don L. Hanosh

2006-08-15T23:59:59.000Z

20

Geologic and geophysical investigations of the Zuni-Bandera volcanic field, New Mexico  

DOE Green Energy (OSTI)

A positive, northeast-trending gravity anomaly, 90 km long and 30 km wide, extends southwest from the Zuni uplift, New Mexico. The Zuni-Bandera volcanic field, an alignment of 74 basaltic vents, is parallel to the eastern edge of the anomaly. Lavas display a bimodal distribution of tholeiitic and alkalic compositions, and were erupted over a period from 4 Myr to present. A residual gravity profile taken perpendicular to the major axis of the anomaly was analyzed using linear programming and ideal body theory to obtain bounds on the density contrast, depth, and minimum thickness of the gravity body. Two-dimensionality was assumed. The limiting case where the anomalous body reaches the surface gives 0.1 g/cm/sup 3/ as the greatest lower bound on the maximum density contrast. If 0.4 g/cm/sup 3/ is taken as the geologically reasonable upper limit on the maximum density contrast, the least upper bound on the depth of burial is 3.5 km and minimum thickness is 2 km. A shallow mafic intrusion, emplaced sometime before Laramide deformation, is proposed to account for the positive gravity anomaly. Analysis of a magnetotelluric survey suggests that the intrusion is not due to recent basaltic magma associated with the Zuni-Bandera volcanic field. This large basement structure has controlled the development of the volcanic field; vent orientations have changed somewhat through time, but the trend of the volcanic chain followed the edge of the basement structure. It has also exhibited some control on deformation of the sedimentary section.

Ander, M.E.; Heiken, G.; Eichelberger, J.; Laughlin, A.W.; Huestis, S.

1981-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

SWP.SanJuanBasin.factsheet0919  

NLE Websites -- All DOE Office Websites (Extended Search)

Principal Investigator Reid Grigg/Brian McPherson NMT reid@prrc.nmt.edu / brian@nmt.edu Field Test Information: Field Test Name San Juan Basin, New Mexico: Enhanced Coalbed Methane-Sequestration Test Test Location Near Navajo City, New Mexico Amount and Source of CO 2 Tons Source 20,000 - 35,000 tons; CO2 sourced from McElmo Dome, CO ConocoPhillips KinderMorgan CO 2 Company, L.P. Field Test Partners (Primary Sponsors) Summary of Field Test Site and Operations General Geology and Target Reservoirs: The San Juan basin (SJB) is one of the top ranked basins in the world for CO 2 coalbed sequestration because it has: 1) advantageous geology and high methane content; 2) abundant anthropogenic CO

22

Geophysical framework of the southwestern Nevada volcanic field and hydrogeologic implications  

DOE Green Energy (OSTI)

Gravity and magnetic data, when integrated with other geophysical, geological, and rock-property data, provide a regional framework to view the subsurface geology in the southwestern Nevada volcanic field. The authors have loosely divided the region into six domains based on structural style and overall geophysical character. For each domain, they review the subsurface tectonic and magmatic features that have been inferred or interpreted from previous geophysical work. Where possible, they note abrupt changes in geophysical fields as evidence for potential structural or lithologic control on ground-water flow. They use inferred lithology to suggest associated hydrogeologic units in the subsurface. The resulting framework provides a basis for investigators to develop hypotheses for regional ground-water pathways where no drill-hole information exists. The authors discuss subsurface features in the northwestern part of the Nevada Test Site and west of the Nevada Test Site in more detail to address potential controls on regional ground-water flow away from areas of underground nuclear-weapons testing at Pahute Mesa. Subsurface features of hydrogeologic importance in these areas are (1) the resurgent intrusion below Timber Mountain, (2) a NNE-trending fault system coinciding with western margins of the Silent Canyon and Timber Mountain caldera complexes, (3) a north-striking, buried fault east of Oasis Mountain extending for 15 km, which they call the Hogback fault, and (4) an east-striking transverse fault or accommodation zone that, in part, bounds Oasis Valley basin on the south, which they call the Hot Springs fault. In addition, there is no geophysical nor geologic evidence for a substantial change in subsurface physical properties within a corridor extending from the northwestern corner of the Rainier Mesa caldera to Oasis Valley basin (east of Oasis Valley discharge area). This observation supports the hypothesis of other investigators that regional ground water from Pahute Mesa is likely to follow a flow path that extends southwestward to Oasis Valley discharge area.

Grauch, V.J.S.; Sawyer, D.A.; Fridrich, C.J.; Hudson, M.R.

2000-06-08T23:59:59.000Z

23

The Origin of High-Enthalpy Geothermal of Non-Volcanic Environment---As a Case Study of Yangbajing Geothermal Field at Qinghai-Tibet Plateau  

Science Conference Proceedings (OSTI)

Among global high-enthalpy geothermal resources, geothermal fields within Tibet are located in non-volcanic environment only. Results of the PTt(pressure-temperature-time) trajectory calculation of the Plateau uplifting gave a comparatively satisfactory ...

Jin Shenghai; Yao Zujin; Yin Miying

2009-10-01T23:59:59.000Z

24

Development of a geothermal resource in a fractured volcanic formation: Case study of the Sumikawa Geothermal Field, Japan  

DOE Green Energy (OSTI)

The principal purpose of this case study of the Sumikawa Geothermal Field is to document and to evaluate the use of drilling logs, surface and downhole geophysical measurements, chemical analyses, and pressure transient data for the assessment of a high temperature volcanic geothermal field. The work accomplished during Year 1 of this ongoing program is described in the present report. A brief overview of the Sumikawa Geothermal Field is given. The drilling information and downhole pressure, temperature, and spinner surveys are used to determine feedzone locations, pressures and temperatures. Available injection and production data from both slim holes and large-diameter wells are analyzed to evaluate injectivity/productivity indices and to investigate the variation of discharge rate with borehole diameter. Finally, plans for future work are outlined.

Garg, S.K.; Pritchett, J.W.; Stevens, J.L.; Luu, L. [Maxwell Federal Div., Inc., San Diego, CA (United States); Combs, J. [Geo-Hills Associates, Los Altos, CA (United States)

1996-11-01T23:59:59.000Z

25

EIS-0477: San Juan Basin Energy Connect Project, San Juan County, New  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7: San Juan Basin Energy Connect Project, San Juan County, 7: San Juan Basin Energy Connect Project, San Juan County, New Mexico and La Plata County, Colorado EIS-0477: San Juan Basin Energy Connect Project, San Juan County, New Mexico and La Plata County, Colorado SUMMARY The Department of the Interior's Bureau of Land Management is preparing this EIS to evaluate the environmental impacts of a proposal to construct a 230-kilovolt transmission line from the Farmington area in northwest New Mexico to Ignacio, Colorado, to relieve transmission constraints, serve new loads, and offer economic development through renewable energy development in the San Juan Basin. DOE's Western Area Power Administration is a cooperating agency; the proposed transmission line would require an interconnection with Western's Shiprock Substation, near Farmington.

26

Juan Pablo Pinasco Departamento de Matematicas  

E-Print Network (OSTI)

Mecanica Mecanica Juan Pablo Pinasco Departamento de Matematicas FCEyN - UBA 2007 #12;Mecanica(x0) = y0; y (x0) = y1 #12;Mecanica Ecuaciones diferenciales Caso importante: y + ay + by = 0´on general #12;Mecanica Ecuaciones diferenciales Ejemplo: y - y - 2y = 0 Queda r2 - r - 2 = 0 y las

Pinasco, Juan Pablo

27

Juan Pablo Pinasco Departamento de Matematicas  

E-Print Network (OSTI)

Mecanica Mecanica Juan Pablo Pinasco Departamento de Matematicas FCEyN - UBA 2008 #12;Mecanica(x0) = y0; y (x0) = y1 #12;Mecanica Ecuaciones diferenciales Caso importante: y + ay + by = 0´on general #12;Mecanica Ecuaciones diferenciales Ejemplo: y - y - 2y = 0 Queda r2 - r - 2 = 0 y las

Pinasco, Juan Pablo

28

Juan Pablo Pinasco Departamento de Matematicas  

E-Print Network (OSTI)

Mecanica Mecanica Juan Pablo Pinasco Departamento de Matematicas FCEyN - UBA 2008 #12;Mecanica Parte I Ecuaciones en Derivadas Parciales #12;Mecanica Ecuaciones en Derivadas Parciales 1734 Euler 1743 D Alembert 1746 D Alembert: estudia la cuerda de viol´in #12;Mecanica D Alembert (1746)/1 Piensa una

Pinasco, Juan Pablo

29

Temperature Trends at San Juan, Puerto Rico  

Science Conference Proceedings (OSTI)

Observations at the San Juan, Puerto Rico international airport show that the annual mean temperature has increased by about 2.1C (3.8F) from 1956 to 1983. The chief contributors to the increase are an increase in daily minimum temperature from ...

Claude E. Duchon

1986-11-01T23:59:59.000Z

30

Models of volcanic eruption hazards  

SciTech Connect

Volcanic eruptions pose an ever present but poorly constrained hazard to life and property for geothermal installations in volcanic areas. Because eruptions occur sporadically and may limit field access, quantitative and systematic field studies of eruptions are difficult to complete. Circumventing this difficulty, laboratory models and numerical simulations are pivotal in building our understanding of eruptions. For example, the results of fuel-coolant interaction experiments show that magma-water interaction controls many eruption styles. Applying these results, increasing numbers of field studies now document and interpret the role of external water eruptions. Similarly, numerical simulations solve the fundamental physics of high-speed fluid flow and give quantitative predictions that elucidate the complexities of pyroclastic flows and surges. A primary goal of these models is to guide geologists in searching for critical field relationships and making their interpretations. Coupled with field work, modeling is beginning to allow more quantitative and predictive volcanic hazard assessments.

Wohletz, K.H.

1992-01-01T23:59:59.000Z

31

Models of volcanic eruption hazards  

SciTech Connect

Volcanic eruptions pose an ever present but poorly constrained hazard to life and property for geothermal installations in volcanic areas. Because eruptions occur sporadically and may limit field access, quantitative and systematic field studies of eruptions are difficult to complete. Circumventing this difficulty, laboratory models and numerical simulations are pivotal in building our understanding of eruptions. For example, the results of fuel-coolant interaction experiments show that magma-water interaction controls many eruption styles. Applying these results, increasing numbers of field studies now document and interpret the role of external water eruptions. Similarly, numerical simulations solve the fundamental physics of high-speed fluid flow and give quantitative predictions that elucidate the complexities of pyroclastic flows and surges. A primary goal of these models is to guide geologists in searching for critical field relationships and making their interpretations. Coupled with field work, modeling is beginning to allow more quantitative and predictive volcanic hazard assessments.

Wohletz, K.H.

1992-06-01T23:59:59.000Z

32

Microsoft Word - SWP.SanJuanBasin.factsheet.10.26.2009.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

Principal Investigators Brian McPherson (brian@nmt.edu) and Reid Grigg (reid@prrc.nmt.edu) New Mexico Tech Field Test Information: Field Test Name San Juan Basin, New Mexico: Enhanced Coalbed Methane-Sequestration Test Test Location Near Navajo City, New Mexico Amount and Source of CO 2 Tons Source 20,000 - 35,000 tons; CO2 sourced from McElmo Dome, CO ConocoPhillips KinderMorgan CO 2 Company, L.P. Field Test Partners (Primary Sponsors) Summary of Field Test Site and Operations General Geology and Target Reservoirs: The San Juan basin (SJB) is one of the top ranked basins in the world for CO 2 coalbed sequestration because it has: 1) advantageous geology and high methane content; 2) abundant anthropogenic CO

33

San Juan Life Assessment Study Phase 1  

Science Conference Proceedings (OSTI)

This report documents Phase 1 of a comprehensive study undertaken to provide information needed for evaluating possible plant retirement time frames for the San Juan Generating Station (SJGS). Work performed in this phase of the study included initial plant and environmental assessments, a review of cost and performance aspects of a larger group of plants with characteristics and/or operating histories similar to those of SJGS, and a reference-case market simulation and performance assessment of the stat...

2004-09-30T23:59:59.000Z

34

The Thermal Regime Of The San Juan Basin Since Late Cretaceous...  

Open Energy Info (EERE)

Thermal Regime Of The San Juan Basin Since Late Cretaceous Times And Its Relationship To San Juan Mountains Thermal Sources Jump to: navigation, search GEOTHERMAL ENERGYGeothermal...

35

Development of a geothermal resource in a fractured volcanic formation: Case study of the Sumikawa Geothermal Field, Japan. Final report, May 1, 1995--November 30, 1997  

DOE Green Energy (OSTI)

The principal purpose of this case study of the Sumikawa Geothermal Field is to document and to evaluate the use of drilling logs, surface and downhole geophysical measurements, chemical analyses and pressure transient data for the assessment of a high temperature volcanic geothermal field. This comprehensive report describes the work accomplished during FY 1993-1996. A brief review of the geological and geophysical surveys at the Sumikawa Geothermal Field is presented (Section 2). Chemical data, consisting of analyses of steam and water from Sumikawa wells, are described and interpreted to indicate compositions and temperatures of reservoir fluids (Section 3). The drilling information and downhole pressure, temperature and spinner surveys are used to determine feedzone locations, pressures and temperatures (Section 4). Available injection and production data from both slim holes and large-diameter wells are analyzed to evaluate injectivity/productivity indices and to investigate the variation of discharge rate with borehole diameter (Section 5). New interpretations of pressure transient data from several wells are discussed (Section 6). The available data have been synthesized to formulate a conceptual model for the Sumikawa Geothermal Field (Section 7).

Garg, S.K.; Combs, J.; Pritchett, J.W. [and others

1997-07-01T23:59:59.000Z

36

Hydrothermal systems in two areas of the Jemez volcanic field: Sulphur Springs and the Cochiti mining district  

DOE Green Energy (OSTI)

K/Ar dates and oxygen isotope data were obtained on 13 clay separates (<2 ..mu..m) of thermally altered mafic and silicic rocks from the Cochiti mining district (SE Jemez Mountains) and Continental Scientific Drilling Project (CSDP) core hole VC-2A (Sulphur Springs, Valles caldera). Illite with K/sub 2/O contents of 6.68%--10.04% is the dominant clay in the silicic rocks, whereas interstratified illite/smectites containing 1.4%--5.74% K/sub 2/O constitute the altered andesites. Two hydrothermal alteration events are recognized at the Cochiti area (8.07 m.y., n = 1, and 6.5--5.6 m.y., n = 6). The older event correlates with the waning stages of Paliza Canyon Formation andesite volcanism (greater than or equal to13 to less than or equal to8.5 m.y.), whereas the younger event correlates with intrusions and gold- and silver-bearing quartz veins associated with the Bearhead Rhyolite (7.54--5.8 m.y.). The majority of K/Ar dates in the hydrothermally altered, caldera-fill rocks of core hole VC-2A (0.83--0.66 m.y., n = 4) indicate that hydrothermal alteration developed contemporaneously with resurgence and ring fracture Valles Rhyolite domes (0.89--0.54 m.y.). One date of 0 +- 0.10 m.y. in acid-altered landslide debris of postcaldera tuffs from the upper 13 m of the core hole probably correlates with Holocene hydrothermal activity possibly associated with the final phases of the Valles Rhyolite (0.13 m.y.).

WoldeGabriel, G.

1989-03-01T23:59:59.000Z

37

Sequence Stratigraphy of the Dakota Sandstone, Eastern San Juan Basin, New Mexico, and its Relationship to Reservoir Compartmentalization  

SciTech Connect

This research established the Dakota-outcrop sequence stratigraphy in part of the eastern San Juan Basin, New Mexico, and relates reservoir quality lithologies in depositional sequences to structure and reservoir compartmentalization in the South Lindrith Field area. The result was a predictive tool that will help guide further exploration and development.

Varney, Peter J.

2002-04-23T23:59:59.000Z

38

Generating Potable Water from Fuel Cell Technology Juan E. Tibaquir  

E-Print Network (OSTI)

Generating Potable Water from Fuel Cell Technology Juan E. Tibaquirá Associate Professor Electricity Heat Water #12;Second Forum on Energy & Water Sustainability April 10th /09 6 PEM Fuel Cells for research 2. Fuel-cell fundamentals 3. Implications of using water from fuel cells in a society

Keller, Arturo A.

39

SWP.SanJuanBasin.factsheet0919  

NLE Websites -- All DOE Office Websites (Extended Search)

FACTSHEET FOR PARTNERSHIP FIELD VALIDATION TEST Partnership Name Southwest Regional Partnership on Carbon Sequestration Contacts: DOENETL Project Mgr. Name Organization E-Mail...

40

San Juan Mesa Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Farm Farm Jump to: navigation, search Name San Juan Mesa Wind Farm Facility San Juan Mesa Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Edison Mission Group owns majority Developer Edison Mission Group Energy Purchaser Xcel Energy Location Elida County NM Coordinates 33.9697°, -103.844° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.9697,"lon":-103.844,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

San Juan Montana Thrust Belt WY Thrust Belt Black Warrior  

U.S. Energy Information Administration (EIA) Indexed Site

San San Juan Montana Thrust Belt WY Thrust Belt Black Warrior Paradox - San Juan NW (2) Uinta- Piceance Paradox - San Juan SE (2) Florida Peninsula Appalachian- NY (1) Appalachian OH-PA (2) Appalachian Eastern PA (3) Appalachian Southern OH (4) Appalachian Eastern WV (5) Appalachian WV-VA (6) Appalachian TN-KY (7) Piceance Greater Green River Eastern OR-WA Ventura Williston Williston NE (2) Williston NW (1) Williston South (3) Eastern Great Basin Ventura West, Central, East Eastern OR-WA Eastern Great Basin Appalachian Denver Florida Peninsula Black Warrior W Y T h ru st B e lt Powder River Paradox- Uinta- Grtr Green River MT Thrust Belt Powder River North (1) Powder River South (2) Denver North (1) Denver South (3) Denver Middle (2) TX CA MT AZ ID NV NM CO IL OR UT KS WY IA NE SD MN ND OK FL WI MO AL WA GA AR LA MI IN PA NY NC MS TN KY VA OH SC

42

Kunnskap er makt! : en studie av maktforhold og sosial praksis i San Juan, Puerto Rico.  

E-Print Network (OSTI)

??Sammendrag Grunnlaget for denne masteroppgaven er et 5 mneders langt feltarbeid i San Juan, Puerto Rico. Fra januar til juni 2011 bodde jeg i hovedstaden (more)

Hoff, Tuva Hiby

2012-01-01T23:59:59.000Z

43

La variedad linguistica de la mujer del Area Metropolitana de San Juan, Puerto Rico.  

E-Print Network (OSTI)

??This is an empirical study which aims at describing the speech of women in the Metropolitan Area of San Juan, Puerto Rico. Despite the fact (more)

Pratt-Panford, Comfort

2012-01-01T23:59:59.000Z

44

Overview Of Electromagnetic Methods Applied In Active Volcanic Areas Of  

Open Energy Info (EERE)

Of Electromagnetic Methods Applied In Active Volcanic Areas Of Of Electromagnetic Methods Applied In Active Volcanic Areas Of Western United States Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Overview Of Electromagnetic Methods Applied In Active Volcanic Areas Of Western United States Details Activities (7) Areas (2) Regions (0) Abstract: A better understanding of active volcanic areas in the United States through electromagnetic geophysical studies received foundation from the many surveys done for geothermal exploration in the 1970's. Investigations by governmental, industrial, and academic agencies include (but are not limited to) mapping of the Cascades. Long Valley/Mono area, the Jemez volcanic field, Yellowstone Park, and an area in Colorado. For one example - Mt. Konocti in the Mayacamas Mountains, California - gravity,

45

Evidence For Gas And Magmatic Sources Beneath The Yellowstone Volcanic  

Open Energy Info (EERE)

Evidence For Gas And Magmatic Sources Beneath The Yellowstone Volcanic Evidence For Gas And Magmatic Sources Beneath The Yellowstone Volcanic Field From Seismic Tomographic Imaging Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Evidence For Gas And Magmatic Sources Beneath The Yellowstone Volcanic Field From Seismic Tomographic Imaging Details Activities (1) Areas (1) Regions (0) Abstract: The 3-D P-wave velocity and P- to S-wave velocity ratio structure of the Yellowstone volcanic field, Wyoming, has been determined from local earthquake tomography using new data from the permanent Yellowstone seismic network. We selected 3374 local earthquakes between 1995 and 2001 to invert for the 3-D P-wave velocity (Vp) and P-wave to S-wave velocity ratio (Vp/Vs) structure. Vp anomalies of small size (15_15 km) are reliably

46

Port Angeles-Juan de Fuca Transmission Project Final Environmental Impact Statement  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Port Angeles-Juan de Fuca Port Angeles-Juan de Fuca Transmission Project Final Environmental Impact Statement DOE/EIS-0378 October 2007 Port Angeles-Juan de Fuca Transmission Project Final Environmental Impact Statement DOE/EIS - 0378 D e p a r t m e n t o f E n e r g y Office of Electricity Delivery and Energy Reliability and Bonneville Power Administration October 2007 Port Angeles-Juan de Fuca Transmission Project DOE/EIS-0378 Responsible Agency: U.S. Department of Energy (DOE): Office of Electricity Delivery and Energy Reliability (OE) and Bonneville Power Administration (BPA) Title of Proposed Project: Port Angeles-Juan de Fuca Transmission Project State Affected: Washington (WA) Abstract: Sea Breeze Olympic Converter LP (Sea Breeze) has applied to DOE for authorizations and approvals

47

EIS-0477: San Juan Basin Energy Connect Project, San Juan County, New Mexico and La Plata County, Colorado  

Energy.gov (U.S. Department of Energy (DOE))

The Department of the Interiors Bureau of Land Management is preparing this EIS to evaluate the environmental impacts of a proposal to construct a 230-kilovolt transmission line from the Farmington area in northwest New Mexico to Ignacio, Colorado, to relieve transmission constraints, serve new loads, and offer economic development through renewable energy development in the San Juan Basin. DOEs Western Area Power Administration is a cooperating agency; the proposed transmission line would require an interconnection with Western's Shiprock Substation, near Farmington.

48

Blind Geothermal System Exploration in Active Volcanic Environments;  

Open Energy Info (EERE)

System Exploration in Active Volcanic Environments; System Exploration in Active Volcanic Environments; Multi-phase Geophysical and Geochemical Surveys in Overt and Subtle Volcanic Systems, Hawaii and Maui Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Blind Geothermal System Exploration in Active Volcanic Environments; Multi-phase Geophysical and Geochemical Surveys in Overt and Subtle Volcanic Systems, Hawai'i and Maui Project Type / Topic 1 Recovery Act: Geothermal Technologies Program Project Type / Topic 2 Validation of Innovative Exploration Technologies Project Description The project will perform a suite of stepped geophysical and geochemical surveys and syntheses at both a known, active volcanic system at Puna, Hawai'i and a blind geothermal system in Maui, Hawai'i. Established geophysical and geochemical techniques for geothermal exploration including gravity, major cations/anions and gas analysis will be combined with atypical implementations of additional geophysics (aeromagnetics) and geochemistry (CO2 flux, 14C measurements, helium isotopes and imaging spectroscopy). Importantly, the combination of detailed CO2 flux, 14C measurements and helium isotopes will provide the ability to directly map geothermal fluid upflow as expressed at the surface. Advantageously, the similar though active volcanic and hydrothermal systems on the east flanks of Kilauea have historically been the subject of both proposed geophysical surveys and some geochemistry; the Puna Geothermal Field (Puna) (operated by Puna Geothermal Venture [PGV], an Ormat subsidiary) will be used as a standard by which to compare both geophysical and geochemical results.

49

DECOVALEX-THMC Task D: Long-Term Permeability/Porosity Changes inthe EDZ and Near Field due to THM and THC Processes in Volcanic andCrystaline-Bentonite Systems, Status Report October 2005  

Science Conference Proceedings (OSTI)

The DECOVALEX project is an international cooperativeproject initiated by SKI, the Swedish Nuclear Power Inspectorate, withparticipation of about 10 international organizations. The name DECOVALEXstands for DEvelopment of COupled models and their VALidation againstExperiments. The general goal of this project is to encouragemultidisciplinary interactive and cooperative research on modelingcoupled processes in geologic formations in support of the performanceassessment for underground storage of radioactive waste. Three multi-yearproject stages of DECOVALEX have been completed in the past decade,mainly focusing on coupled thermal-hydrological-mechanicalprocesses.Currently, a fourth three-year project stage of DECOVALEX isunder way, referred to as DECOVALEX-THMC. THMC stands for Thermal,Hydrological, Mechanical, and Chemical processes. The new project stageaims at expanding the traditional geomechanical scope of the previousDECOVALEX project stages by incorporating geochemical processes importantfor repository performance. The U.S. Department of Energy (DOE) leadsTask D of the new DECOVALEX phase, entitled "Long-termPermeability/Porosity Changes in the EDZ and Near Field due to THC andTHM Processes for Volcanic and Crystalline-Bentonite Systems." In itsleadership role for Task D, DOE coordinates and sets the direction forthe cooperative research activities of the international research teamsengaged in Task D.

Birkholzer, J.; Rutqvist, J.; Sonnenthal, E.; Barr, D.

2005-11-01T23:59:59.000Z

50

Lassen Volcanic National Park Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Lassen Volcanic National Park Geothermal Area Lassen Volcanic National Park Geothermal Area (Redirected from Lassen Volcanic National Park Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Lassen Volcanic National Park Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (11) 10 References Area Overview Geothermal Area Profile Location: California Exploration Region: Cascades GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0

51

San Juan Hot Springs Pool & Spa Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

San Juan Hot Springs Pool & Spa Low Temperature Geothermal Facility San Juan Hot Springs Pool & Spa Low Temperature Geothermal Facility Facility San Juan Hot Springs Sector Geothermal energy Type Pool and Spa Location San Juan Capistrano, California Coordinates 33.5016932°, -117.6625509° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

52

Laboratory characterization of a highly weathered old alluvium in San Juan, Puerto Rico  

E-Print Network (OSTI)

The old alluvium underlying much of metropolitan San Juan was formed in early Pleistocene and has undergone substantial post-depositional weathering in the tropical climate of Puerto Rico, resulting in a special combination ...

Zhang, Guoping, 1968-

2002-01-01T23:59:59.000Z

53

Lassen Volcanic National Park Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Lassen Volcanic National Park Geothermal Area Lassen Volcanic National Park Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Lassen Volcanic National Park Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (11) 10 References Area Overview Geothermal Area Profile Location: California Exploration Region: Cascades GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

54

Thermal regimes of major volcanic centers: magnetotelluric constraints  

DOE Green Energy (OSTI)

The focus of activity at this laboratory is on applying natural electromagnetic methods along with other geophysical techniques to studying the dynamical processes and thermal regimes associated with centers of major volcanic activity. We are presently emphasizing studies of the Long Valley/Mono Craters Volcanic Complex, the Cascades Volcanic Belt, and the Valles Caldera. This work addresses questions regarding geothermal energy, chemical transport of minerals in the crust, emplacement of economic ore deposits, and optimal siting of drill-holes for scientific purposes. In addition, since much of our work is performed in the intermontane sedimentary basins of the western US (along with testing our field-system in some of the graben structures in the Northeast), there is an application of these studies to developing exploration and interpretational strategies for detecting and delineating structures associated with hydrocarbon reserves.

Hermance, J.F.

1987-11-13T23:59:59.000Z

55

EIS-0355: Remediation of the Moab Uranium Mill Tailings, Grand and San Juan  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

355: Remediation of the Moab Uranium Mill Tailings, Grand and 355: Remediation of the Moab Uranium Mill Tailings, Grand and San Juan Counties, Utah EIS-0355: Remediation of the Moab Uranium Mill Tailings, Grand and San Juan Counties, Utah Summary The Remediation of the Moab Uranium Mill Tailings, Grand and San Juan Counties, Utah, Environmental Impact Statement and associated supplements and amendments provides information on the environmental impacts of the U.S. Department of Energy's (DOE's) proposal to (1) remediate approximately 11.9 million tons of contaminated materials located on the Moab site and approximately 39,700 tons located on nearby vicinity properties and (2) develop and implement a ground water compliance strategy for the Moab site using the framework of the Programmatic Environmental Impact Statement for the Uranium Mill Tailings Remedial Action Ground Water

56

Property:VolcanicAge | Open Energy Information  

Open Energy Info (EERE)

Property Property Edit with form History Facebook icon Twitter icon » Property:VolcanicAge Jump to: navigation, search Property Name VolcanicAge Property Type String Description Describes the time of the most recent volcanism by epoch, era, or period per available data. Subproperties This property has the following 7 subproperties: E East Mesa Geothermal Area G Geysers Geothermal Area L Lightning Dock Geothermal Area R Raft River Geothermal Area Roosevelt Hot Springs Geothermal Area S Salton Sea Geothermal Area Soda Lake Geothermal Area Pages using the property "VolcanicAge" Showing 19 pages using this property. A Amedee Geothermal Area + No volcanism + B Beowawe Hot Springs Geothermal Area + no volcanism + Blue Mountain Geothermal Area + no volcanism + Brady Hot Springs Geothermal Area + No volcanism +

57

Volcanic Contributions to the Stratospheric Sulfate Layer  

Science Conference Proceedings (OSTI)

We have detected the transport of volcanic sulfate through the tropical tropopause. This is particularly noteworthy because the source volcanic eruption was only of modest intensity and, therefore, not normally thought to be of stratospheric ...

Ronald W. Fegley; Howard T. Ellis; J. L. Heffter

1980-06-01T23:59:59.000Z

58

Melt zones beneath five volcanic complexes in California: an assessment of  

Open Energy Info (EERE)

Melt zones beneath five volcanic complexes in California: an assessment of Melt zones beneath five volcanic complexes in California: an assessment of shallow magma occurrences Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Melt zones beneath five volcanic complexes in California: an assessment of shallow magma occurrences Details Activities (5) Areas (5) Regions (0) Abstract: Recent geological and geophysical data for five magma-hydrothermal systems were studied for the purpose of developing estimates for the depth, volume and location of magma beneath each area. The areas studied were: (1) Salton Trough, (2) The Geysers-Clear Lake, (3) Long Valley caldera, (4) Coso volcanic field, and (5) Medicine Lake volcano, all located in California and all selected on the basis of recent volcanic activity and published indications of crustal melt zones. 23 figs.

59

Supercomputer modeling of volcanic eruption dynamics  

DOE Green Energy (OSTI)

Our specific goals are to: (1) provide a set of models based on well-defined assumptions about initial and boundary conditions to constrain interpretations of observations of active volcanic eruptions--including movies of flow front velocities, satellite observations of temperature in plumes vs. time, and still photographs of the dimensions of erupting plumes and flows on Earth and other planets; (2) to examine the influence of subsurface conditions on exit plane conditions and plume characteristics, and to compare the models of subsurface fluid flow with seismic constraints where possible; (3) to relate equations-of-state for magma-gas mixtures to flow dynamics; (4) to examine, in some detail, the interaction of the flowing fluid with the conduit walls and ground topography through boundary layer theory so that field observations of erosion and deposition can be related to fluid processes; and (5) to test the applicability of existing two-phase flow codes for problems related to the generation of volcanic long-period seismic signals; (6) to extend our understanding and simulation capability to problems associated with emplacement of fragmental ejecta from large meteorite impacts.

Kieffer, S.W. [Arizona State Univ., Tempe, AZ (United States); Valentine, G.A. [Los Alamos National Lab., NM (United States); Woo, Mahn-Ling [Arizona State Univ., Tempe, AZ (United States)

1995-06-01T23:59:59.000Z

60

Strong Westerly Wind Events in the Strait of Juan de Fuca  

Science Conference Proceedings (OSTI)

Strong westerly wind events occur regularly within and downstream of the Strait of Juan de Fuca of Washington State. During such strong gap wind periods, flow can accelerate to 30-50 kt, with gusts sometimes reaching 80 kt or more. Strong winds in ...

Clifford F. Mass; Michael D. Warner; Rick Steed

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

OIL SPILL BACKGROUND Marcia K McNutt, Juan Lasheras, 'Franklin Shaffer',  

E-Print Network (OSTI)

OIL SPILL BACKGROUND Marcia K McNutt, Juan Lasheras, 'Franklin Shaffer', BlIIlehr to: pmbommer on the fate and behavior of spilled oil. Of course, since this spill originates a mile deep, some. ~ Lehr book chapter .pdf #12;Review of modeling procedures for oil spill weathering behavior William J

Fleskes, Joe

62

Hurricane Juan (2003). Part I: A Diagnostic and Compositing Life Cycle Study  

Science Conference Proceedings (OSTI)

A detailed analysis of the complex life cycle of Hurricane Juan (in 2003) is undertaken to elucidate the structures and forcings that prevailed over the period leading up to the hurricanes landfall in Halifax, Nova Scotia, Canada. Despite the ...

Ron McTaggart-Cowan; Eyad H. Atallah; John R. Gyakum; Lance F. Bosart

2006-07-01T23:59:59.000Z

63

Resistance to Cry toxins and epithelial healing Anas Castagnola, Juan Luis Jurat-Fuentes  

E-Print Network (OSTI)

Resistance to Cry toxins and epithelial healing Anaïs Castagnola, Juan Luis Jurat: Resistance to Cry toxins can develop by alterations in any of the steps in the Cry toxin mode of action. Most characterized mechanisms of resistance to Cry toxins involve alterations in enzymatic toxin processing or toxin

Jurat-Fuentes, Juan Luis

64

Disruptive event analysis: volcanism and igneous intrusion  

SciTech Connect

An evaluation is made of the disruptive effects of volcanic activity with respect to long term isolation of radioactive waste through deep geologic storage. Three major questions are considered. First, what is the range of disruption effects of a radioactive waste repository by volcanic activity. Second, is it possible, by selective siting of a repository, to reduce the risk of disruption by future volcanic activity. And third, can the probability of repository disruption by volcanic activity be quantified. The main variables involved in the evaluation of the consequences of repository disruption by volcanic activity are the geometry of the magma-repository intersection (partly controlled by depth of burial) and the nature of volcanism. Potential radionuclide dispersal by volcanic transport within the biosphere ranges in distance from several kilometers to global. Risk from the most catastrophic types of eruptions can be reduced by careful site selection to maximize lag time prior to the onset of activity. Certain areas or volcanic provinces within the western United States have been sites of significant volcanism and should be avoided as potential sites for a radioactive waste repository. Examples of projection of future sites of active volcanism are discussed for three areas of the western United States. Probability calculations require two types of data: a numerical rate or frequency of volcanic activity and a numerical evaluation of the areal extent of volcanic disruption for a designated region. The former is clearly beyond the current state of art in volcanology. The latter can be approximated with a reasonable degree of satisfaction. In this report, simplified probability calculations are attempted for areas of past volcanic activity.

Crowe, B.M.

1980-08-01T23:59:59.000Z

65

Field Mapping At San Francisco Volcanic Field Area (Warpinski...  

Open Energy Info (EERE)

the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify potential drilling...

66

Melt zones beneath five volcanic complexes in California: an assessment of shallow magma occurrences  

DOE Green Energy (OSTI)

Recent geological and geophysical data for five magma-hydrothermal systems were studied for the purpose of developing estimates for the depth, volume and location of magma beneath each area. The areas studied were: (1) Salton Trough, (2) The Geysers-Clear Lake, (3) Long Valley caldera, (4) Coso volcanic field, and (5) Medicine Lake volcano, all located in California and all selected on the basis of recent volcanic activity and published indications of crustal melt zones. 23 figs.

Goldstein, N.E.; Flexser, S.

1984-12-01T23:59:59.000Z

67

Prospecting for Hydrothermal Vents Using Moored Current and Temperature Data: Axial Volcano on the Juan de Fuca Ridge, Northeast Pacific  

Science Conference Proceedings (OSTI)

Tidal and inertial currents and profuse hydrothermal discharge at recently erupted Axial Volcano, Juan de Fuca Ridge, cause relatively large and rapid temperature (T) changes in the near-bottom water column. Measurements show short-term T ...

J. W. Lavelle; M. A. Wetzler; E. T. Baker; R. W. Embley

2001-03-01T23:59:59.000Z

68

MHK Projects/San Juan Channel Tidal Energy Project | Open Energy  

Open Energy Info (EERE)

San Juan Channel Tidal Energy Project San Juan Channel Tidal Energy Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.5896,"lon":-123.012,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

69

Fracture Model, Ground Displacements and Tracer Observations: Fruitland Coals, San Juan Basin, New Mexico,  

E-Print Network (OSTI)

) ________________________________________________ San Juan 0.9 ? 20 (coal bed) Piceance 2.4 1 ­ 4 620 (tight sands) Barnett 2 2 ­ 3 380 (shale) GreenEnergy Methane Indirect CO2 Direct CO2 #12;Total GHG footprints for natural gas, diesel fuel, and coal (g C MJ-1/ndx_marcil.pdf Shales hold a lot of natural gas (methane), but very dispersed, not economical using traditional

Wilson, Thomas H.

70

Thermal regimes of major volcanic centers: Magnetotelluric constraints  

DOE Green Energy (OSTI)

The interpretation of geophysical/electromagnetic field data has been used to study dynamical processes in the crust beneath three of the major tectono-volcanic features in North America: the Long Valley/Mono Craters Volcanic Complex in eastern California, the Cascades Volcanic Belt in Oregon, and the Rio Grande Rift in the area of Socorro, New Mexico. Primary accomplishments have been in the area of creating and implementing a variety of 2-D generalized inverse computer codes, and the application of these codes to fields studies on the basin structures and he deep thermal regimes of the above areas. In order to more fully explore the space of allowable models (i.e. those inverse solutions that fit the data equally well), several distinctly different approaches to the 2-D inverse problem have been developed: (1) an overdetermined block inversion; (2) an overdetermined spline inverstion; (3) a generalized underdetermined total inverse which allows one to tradeoff certain attributes of their model, such as minimum structure (flat models), roughness (smooth models), or length (small models). Moreover, we are exploring various approaches for evaluating the resolution model parameters for the above algorithms. 33 refs.

Hermance, J.F.

1989-10-02T23:59:59.000Z

71

A Distinction Technique Between Volcanic And Tectonic Depression...  

Open Energy Info (EERE)

Volcanic And Tectonic Depression Structures Based On The Restoration Modeling Of Gravity Anomaly- A Case Study Of The Hohi Volcanic Zone, Central Kyushu, Japan Jump to:...

72

Byrons Don Juan: Forms of Publication, Meanings, and Money  

E-Print Network (OSTI)

This dissertation examines Byron's Don Juan and his attitude towards profits from the copyright money for publishing his poems. Recent studies on Don Juan and Byron have paid great attention to the poem especially in terms of the author's status as an unprecedented noble literary celebrity. Thus the hermeneutics of the poem has very often had a tendency to bind itself within the biographical understanding of the poet's socio-political practices. It is true that these studies are meaningful in that they highlighted and reconsidered the significance of the author's unique life so as to illustrate biographical and historical contexts of this Romantic text. Admitting the significance of the biographical approach, however, the current dissertation also argues that an interpretation of a literary work should consider a number of outside influences that affect the meaning of a text, which is in and of itself a creation of historical, political, economic, and material aspects of a specific time and place, not merely of an individual author. After the theoretical background suggested in Chapter I, Chapter II emphasizes the history of the publication of the first two cantos and investigates John Murray's publishing practices. Chapter III addresses some of the external influences on the reading of Don Juan to show that non-political content of the early five cantos came to be treated as politically radical by the voluntary and involuntary association of Byron and his work with radical publishers such as Leigh Hunt and William Hone. Chapter IV is a study of the new cantos of Don Juan (from the sixth canto). Focusing on Byron's political stance which gradually developed from his early liberalism into a more radical activism, this chapter explores Percy Shelley's influence on Byron's political ideas, the new cantos of Don Juan, and Byron's use of radical satire to instigate the fight against tyranny. Chapter V investigates Byron's attitude towards the profits he earned from the copyright of his poems to argue that Byron?s attitude towards his brain-money gradually changed from an ambiguous position to a strong insistence on obtaining what he perceived to be fair payments for his poems.

Park, Jae Young

2011-12-01T23:59:59.000Z

73

Airborne Volcanic Ash Forecast Area Reliability  

Science Conference Proceedings (OSTI)

In support of aircraft flight safety operations, daily comparisons between modeled, hypothetical, volcanic ash plumes calculated with meteorological forecasts and analyses were made over a 1.5-yr period. The Hybrid Single-Particle Lagrangian ...

Barbara J. B. Stunder; Jerome L. Heffter; Roland R. Draxler

2007-10-01T23:59:59.000Z

74

Operational Implications of Airborne Volcanic Ash  

Science Conference Proceedings (OSTI)

Volcanic ash clouds pose a real threat to aircraft safety. The ash is abrasive and capable of causing serious damage to aircraft engines, control surfaces, windshields, and landing lights. In addition, ash can clog the pitotstatic systems, which ...

Gary L. Hufford; Leonard J. Salinas; James J. Simpson; Elliott G. Barske; David C. Pieri

2000-04-01T23:59:59.000Z

75

Sub-Seafloor Carbon Dioxide Storage Potential on the Juan de Fuca Plate, Western North America  

SciTech Connect

The Juan de Fuca plate, off the western coast of North America, has been suggested as a site for geological sequestration of waste carbon dioxide because of its many attractive characteristics (high permeability, large storage capacity, reactive rock types). Here we model CO2 injection into fractured basalts comprising the upper several hundred meters of the sub-seafloor basalt reservoir, overlain with low-permeability sediments and a large saline water column, to examine the feasibility of this reservoir for CO2 storage. Our simulations indicate that the sub-seafloor basalts of the Juan de Fuca plate may be an excellent CO2 storage candidate, as multiple trapping mechanisms (hydrodynamic, density inversions, and mineralization) act to keep the CO2 isolated from terrestrial environments. Questions remain about the lateral extent and connectivity of the high permeability basalts; however, the lack of wells or boreholes and thick sediment cover maximize storage potential while minimizing potential leakage pathways. Although promising, more study is needed to determine the economic viability of this option.

Jerry Fairley; Robert Podgorney

2012-11-01T23:59:59.000Z

76

Battery Powered Electric Car, Using Photovoltaic Cells Assistance Juan Dixon, Alberto Ziga, Angel Abusleme and Daniel Soto  

E-Print Network (OSTI)

transport costs. Keywords: solar energy, battery charge, photovoltaic. 1 Introduction Although rangeBattery Powered Electric Car, Using Photovoltaic Cells Assistance Juan Dixon, Alberto Zúñiga, Angel-capacity batteries, it is still difficult to develop an economically viable and socially acceptable EV for massive

Rudnick, Hugh

77

Active System For Monitoring Volcanic Activity- A Case Study Of The  

Open Energy Info (EERE)

System For Monitoring Volcanic Activity- A Case Study Of The System For Monitoring Volcanic Activity- A Case Study Of The Izu-Oshima Volcano, Central Japan Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Active System For Monitoring Volcanic Activity- A Case Study Of The Izu-Oshima Volcano, Central Japan Details Activities (0) Areas (0) Regions (0) Abstract: A system is proposed for the monitoring of changes in the underground structure of an active volcano over time by applying a transient electromagnetic method. The monitoring system is named ACTIVE, which stands for Array of Controlled Transient-electromagnetics for Imaging Volcano Edifice. The system consists of a transmitter dipole used to generate a controlled transient electromagnetic (EM) field and an array of receivers used to measure the vertical component of the transient magnetic

78

Port Angeles-Juan de Fuca Transmission Project Draft Environmental Impact Statement  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

This summary includes information regarding the following elements of the draft environmental impact statement (EIS) prepared for the Port Angeles-Juan de Fuca Transmission Project: * purpose and need for action; * Proposed Action and No Action Alternative; and * affected environment, environmental impacts, and mitigation measures. S.1 Purpose and Need for Action Sea Breeze Olympic Converter LP (Sea Breeze) has applied to the United States Department of Energy (DOE) for authorizations and approvals necessary to construct the U.S. portion of a proposed international electric power transmission cable. Specifically, Sea Breeze has applied to the Office of Electricity Delivery and Energy Reliability (DOE/OE), an organizational unit within DOE, for a Presidential permit for its project. Sea Breeze has also submitted a request to

79

Uranium ore rolls in Westwater Canyon sandstone, San Juan Basin, New Mexico  

SciTech Connect

Recent relatively deep uranium-exploration drilling in the Nose Rock area, San Juan Basin, McKinley County, New Mexico, has resulted in the discovery of previously unrecognized uranium ore rolls in gray, unoxidized Westwater Canyon Sandstone of the Morrison Formation. Both the Nose Rock ores and the primary Ambrosia Lake uranium ores were emplaced during the Late Jurassic-Early Cretaceous erosional interval under the same geologic conditions by the same geochemical-cell process. The red, altered interior ground resulting from the geochemical-cell process has been re-reduced by the subsequent entry of reductants into the formation. The original roll form of the Ambrosia Lake orebodies has been obscured and modified by redistribution related to the present-day active redox interface interweaving with the Ambrosia Lake ores.

Clark, D.S.

1980-01-01T23:59:59.000Z

80

DEVELOPMENT OF THE REGIONAL INTELLIGENT TRANSPORTATION SYSTEMS ARCHITECTURE FOR THE SAN JUAN METROPOLITAN AREA Approved by:  

E-Print Network (OSTI)

Several regions around the United States and Puerto Rico have been facing increasingly complex problems related to their transportation systems. In many cases, the use of advanced technology and strategies collectively known as Intelligent Transportation Systems (ITS) have helped to substantially improve their transportation systems. The integration of all the ITS components in a framework is called the ITS system architecture and has usually been an important part of the success in improving the transportation system. This work presents the methodology followed to develop the regional ITS architecture for the San Juan Metropolitan Area. Initially, the region is described including the stakeholders group and identified needs. A description of user services, operational concepts and functional requirements is then presented. These steps lead to the presentation of the system architecture based upon the National ITS Architecture. At the end, the implications of the architecture in terms of planning and project development are discussed. i RESUMEN

Mara Isabel; Fernndez Gonzlez; Wilma Santiago

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
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81

The Role of Anomalously Warm Sea Surface Temperatures on the Intensity of Hurricane Juan (2003) during Its Approach to Nova Scotia  

Science Conference Proceedings (OSTI)

When Hurricane Juan tracked toward Nova Scotia, Canada, in September 2003, forecasters were faced with the challenge of predicting the intensity and timing of the hurricanes landfall. There were two competing factors dictating the storms ...

Christopher T. Fogarty; Richard J. Greatbatch; Harold Ritchie

2006-05-01T23:59:59.000Z

82

Tectonic Setting and Characteristics of Natural Fractures in MesaVerde and Dakota Reservoirs of the San Juan Basin  

SciTech Connect

The Cretaceous strata that fill the San Juan Basin of northwestern New Mexico and southwestern Colorado were shortened in a generally N-S to NN13-SSW direction during the Laramide orogeny. This shortening was the result of compression of the strata between southward indentation of the San Juan Uplift at the north edge of the basin and northward to northeastward indentation of the Zuni Uplift from the south. Right-lateral strike-slip motion was concentrated at the eastern and western basin margins of the basin to form the Hogback Monocline and the Nacimiento Uplift at the same time, and small amounts of shear may have been pervasive within the basin as well. Vertical extension fractures, striking N-S to NNE-SSW with local variations (parallel to the Laramide maximum horizontal compressive stress), formed in both Mesaverde and Dakota sandstones under this system, and are found in outcrops and in the subsurface of the San Juan Basin. The immature Mesaverde sandstones typically contain relatively long, irregular, vertical extension fractures, whereas the quartzitic Dakota sandstones contain more numerous, shorter, sub-parallel, closely spaced, extension fractures. Conjugate shear planes in several orientations are also present locally in the Dakota strata.

LORENZ,JOHN C.; COOPER,SCOTT P.

2000-12-20T23:59:59.000Z

83

San Francisco Volcanic Field Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Plants (0) Projects (0) Activities (6) NEPA(0) Geothermal Area Profile Location Arizona Exploration Region Other GEA Development Phase 2008 USGS Resource Estimate Mean Reservoir...

84

Data Acquisition-Manipulation At San Francisco Volcanic Field...  

Open Energy Info (EERE)

the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify potential drilling...

85

Rock Sampling At San Francisco Volcanic Field Area (Warpinski...  

Open Energy Info (EERE)

the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify potential drilling...

86

Ground Magnetics At San Francisco Volcanic Field Area (Warpinski...  

Open Energy Info (EERE)

the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify potential drilling...

87

Hierarchical probabilistic regionalization of volcanism for Sengan region, Japan.  

SciTech Connect

A 1 km square regular grid system created on the Universal Transverse Mercator zone 54 projected coordinate system is used to work with volcanism related data for Sengan region. The following geologic variables were determined as the most important for identifying volcanism: geothermal gradient, groundwater temperature, heat discharge, groundwater pH value, presence of volcanic rocks and presence of hydrothermal alteration. Data available for each of these important geologic variables were used to perform directional variogram modeling and kriging to estimate geologic variable vectors at each of the 23949 centers of the chosen 1 km cell grid system. Cluster analysis was performed on the 23949 complete variable vectors to classify each center of 1 km cell into one of five different statistically homogeneous groups with respect to potential volcanism spanning from lowest possible volcanism to highest possible volcanism with increasing group number. A discriminant analysis incorporating Bayes theorem was performed to construct maps showing the probability of group membership for each of the volcanism groups. The said maps showed good comparisons with the recorded locations of volcanism within the Sengan region. No volcanic data were found to exist in the group 1 region. The high probability areas within group 1 have the chance of being the no volcanism region. Entropy of classification is calculated to assess the uncertainty of the allocation process of each 1 km cell center location based on the calculated probabilities. The recorded volcanism data are also plotted on the entropy map to examine the uncertainty level of the estimations at the locations where volcanism exists. The volcanic data cell locations that are in the high volcanism regions (groups 4 and 5) showed relatively low mapping estimation uncertainty. On the other hand, the volcanic data cell locations that are in the low volcanism region (group 2) showed relatively high mapping estimation uncertainty. The volcanic data cell locations that are in the medium volcanism region (group 3) showed relatively moderate mapping estimation uncertainty. Areas of high uncertainty provide locations where additional site characterization resources can be spent most effectively. The new data collected can be added to the existing database to perform future regionalized mapping and reduce the uncertainty level of the existing estimations.

Balasingam, Pirahas (University of Arizona); Park, Jinyong (University of Arizona); McKenna, Sean Andrew; Kulatilake, Pinnaduwa H. S. W. (University of Arizona)

2005-03-01T23:59:59.000Z

88

Geomorphic and Geochemical Characteristics of Five Alpine Fens in the San Juan Mountains, Colorado  

E-Print Network (OSTI)

Fens are abundant in the San Juan Mountains. By exploring the geomorphology and geochemistry of fen wetlands, the functions that fens serve can be better understood. In this research, two main studies were conducted involving the geomorphology and geochemistry of fens. The first study involved a complex investigation of the geomorphology of five fen sites in the San Juan Mountains near Silverton, Colorado. Geomorphic maps were constructed for each fen site at a scale of ~1:3,000. A geomorphic classification scheme was then made based on fen location, and fens were placed in one of three categories: 1) valley-bottom, 2) valley-side, and 3) terrace. Fen circularity and elongation values were calculated for thirty fens to determine morphometry. A pattern for elongation of fens emerged between the three types of alpine fens with valley-bottom fens having an average elongation value of 1.7, valley-side 2.4, and terrace 1.9. Valley-side fens are more elongated than valley-bottom and terrace fens, which exhibit similar elongation values. In addition, sediment samples at each site were sectioned along visual breaks in the sediment column and were sieved. Mean phi values were calculated for each section and at each site. The mean phi values at California Gulch, Glacial Lake Ironton, Howardsville, Red Mountain Pass North, and Red Mountain Pass South, are 0.2112, 0.9045, 1.6028, 0.0178, and 1.0516, respectively. Overall, coarse-grained particles are associated with valley-side fens, and medium-grained particles are associated with valley-bottom and terrace fens. The second part of the study involved investigating the geochemistry of fen sediment. The geochemistry portion of this research focused on concentration and isotopic ratios of Pb and the amount of 137Cs in fen sediment to better understand variations of Pb with depth and calculate approximate sedimentation rates. Based on isotopic ratios of Pb, binary mixing was determined with the presence of ore mineralized Pb and non-ore mineralized. Binary mixing of two types of ore-mineralized Pb is present at the Howardsville fen and both ore-mineralized and non-ore mineralized Pb is present at the Red Mountain Pass North fen. Based on 137Cs in fen sediment at Howardsville, an average rate of deposition of sediment is approximately 0.16 cm/yr, with a visible change in sedimentation rates pre- and post-1960s.

McClenning, Bree Kathleen 1985-

2012-12-01T23:59:59.000Z

89

Mercury Vapor At Lassen Volcanic National Park Area (Varekamp...  

Open Energy Info (EERE)

Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon Mercury Vapor At Lassen Volcanic National Park Area (Varekamp & Buseck, 1983) Jump to:...

90

A Morphometric Analysis Of The Submarine Volcanic Ridge South...  

Open Energy Info (EERE)

(TOBI) side-scan sonar imagery, we measured the dimensions (diameter, height, slopes), shape, and texture of these volcanic edifices to further understanding of the geometric...

91

Data Acquisition-Manipulation At Lassen Volcanic National Park Geothermal  

Open Energy Info (EERE)

Volcanic National Park Geothermal Volcanic National Park Geothermal Area (1982) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data Acquisition-Manipulation At Lassen Volcanic National Park Geothermal Area (1982) Exploration Activity Details Location Lassen Volcanic National Park Geothermal Area Exploration Technique Data Acquisition-Manipulation Activity Date 1982 Usefulness useful DOE-funding Unknown Exploration Basis Develop parameters to identify geothermal region Notes Statistical methods are outlined to separate spatially, temporally, and magnitude-dependent portions of both the random and non-random components of the seismicity. The methodology employed compares the seismicity distributions with a generalized Poisson distribution. Temporally related

92

Compound and Elemental Analysis At Lassen Volcanic National Park...  

Open Energy Info (EERE)

Usefulness not indicated DOE-funding Unknown References J. Michael Thompson (1985) Chemistry Of Thermal And Nonthermal Springs In The Vicinity Of Lassen Volcanic National Park...

93

Active System For Monitoring Volcanic Activity- A Case Study...  

Open Energy Info (EERE)

System For Monitoring Volcanic Activity- A Case Study Of The Izu-Oshima Volcano, Central Japan Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Active...

94

An Advanced System to Monitor the 3D Structure of Diffuse Volcanic Ash Clouds  

Science Conference Proceedings (OSTI)

Major disruptions of the aviation system from recent volcanic eruptions have intensified discussions and increased the international consensus to improve volcanic ash warnings. Central to making progress is to better discern low volcanic ash ...

J.-P. Vernier; T. D. Fairlie; J. J. Murray; A. Tupper; C. Trepte; D. Winker; J. Pelon; A. Garnier; J. Jumelet; M. Pavolonis; A. H. Omar; K. A. Powell

95

Petrophysical Analysis and Geographic Information System for San Juan Basin Tight Gas Reservoirs  

Science Conference Proceedings (OSTI)

The primary goal of this project is to increase the availability and ease of access to critical data on the Mesaverde and Dakota tight gas reservoirs of the San Juan Basin. Secondary goals include tuning well log interpretations through integration of core, water chemistry and production analysis data to help identify bypassed pay zones; increased knowledge of permeability ratios and how they affect well drainage and thus infill drilling plans; improved time-depth correlations through regional mapping of sonic logs; and improved understanding of the variability of formation waters within the basin through spatial analysis of water chemistry data. The project will collect, integrate, and analyze a variety of petrophysical and well data concerning the Mesaverde and Dakota reservoirs of the San Juan Basin, with particular emphasis on data available in the areas defined as tight gas areas for purpose of FERC. A relational, geo-referenced database (a geographic information system, or GIS) will be created to archive this data. The information will be analyzed using neural networks, kriging, and other statistical interpolation/extrapolation techniques to fine-tune regional well log interpretations, improve pay zone recognition from old logs or cased-hole logs, determine permeability ratios, and also to analyze water chemistries and compatibilities within the study area. This single-phase project will be accomplished through four major tasks: Data Collection, Data Integration, Data Analysis, and User Interface Design. Data will be extracted from existing databases as well as paper records, then cleaned and integrated into a single GIS database. Once the data warehouse is built, several methods of data analysis will be used both to improve pay zone recognition in single wells, and to extrapolate a variety of petrophysical properties on a regional basis. A user interface will provide tools to make the data and results of the study accessible and useful. The final deliverable for this project will be a web-based GIS providing data, interpretations, and user tools that will be accessible to anyone with Internet access. During this project, the following work has been performed: (1) Assimilation of most special core analysis data into a GIS database; (2) Inventorying of additional data, such as log images or LAS files that may exist for this area; (3) Analysis of geographic distribution of that data to pinpoint regional gaps in coverage; (4) Assessment of the data within both public and proprietary data sets to begin tuning of regional well logging analyses and improve payzone recognition; (5) Development of an integrated web and GIS interface for all the information collected in this effort, including data from northwest New Mexico; (6) Acquisition and digitization of logs to create LAS files for a subset of the wells in the special core analysis data set; and (7) Petrophysical analysis of the final set of well logs.

Martha Cather; Robert Lee; Robert Balch; Tom Engler; Roger Ruan; Shaojie Ma

2008-10-01T23:59:59.000Z

96

Mechanisms Linking Volcanic Aerosols to the Atlantic Meridional Overturning Circulation  

Science Conference Proceedings (OSTI)

This study examines the sensitivity of the climate system to volcanic aerosol forcing in the third climate configuration of the Met Office Unified Model (HadCM3). The main test case was based on the 1880s when there were several volcanic eruptions,...

Alan M. Iwi; Leon Hermanson; Keith Haines; Rowan T. Sutton

2012-04-01T23:59:59.000Z

97

The economic feasibility of enhanced coalbed methane recovery using CO2 sequestration in the San Juan Basin  

E-Print Network (OSTI)

Carbon dioxide emissions are considered a major source of increased atmospheric CO2 levels leading towards global warming. CO2 sequestration in coal bed reservoirs is one technique that can reduce the concentration of CO2 in the air. In addition, due to the chemical and physical properties of carbon dioxide, CO2 sequestration is a potential option for substantially enhancing coal bed methane recovery (ECBM). The San Juan Fruitland coal has the most prolific coal seams in the United States. This basin was studied to investigate the potential of CO2 sequestration and ECBM. Primary recovery of methane is controversial ranging between 20-60% based on reservoir properties in coal bed reservoirs15. Using CO2 sequestration as a secondary recovery technique can enhance coal bed methane recovery up to 30%. Within the San Juan Basin, permeability ranges from 1 md to 100 md. The Fairway region is characterized with higher ranges of permeability and lower pressures. On the western outskirts of the basin, there is a transition zone characterized with lower ranges of permeability and higher pressures. Since the permeability is lower in the transition zone, it is uncertain whether this area is suitable for CO2 sequestration and if it can deliver enhanced coal bed methane recovery. The purpose of this research is to determine the economic feasibility of sequestering CO2 to enhance coal bed methane production in the transition zone of the San Juan Basin Fruitland coal seams. The goal of this research is two- fold. First, to determine whether there is a potential to enhance coal bed methane recovery by using CO2 injection in the transition zone of the San Juan Basin. The second goal is to identify the optimal design strategy and utilize a sensitivity analysis to determine whether CO2 sequestration/ECBM is economically feasible. Based on the results of my research, I found an optimal design strategy for four 160- acre spacing wells. With a high rate injection of CO2 for 10 years, the percentage of recovery can increase by 30% for methane production and it stores 10.5 BCF of CO2. The economic value of this project is $17.56 M and $19.07 M if carbon credits were granted at a price of $5.00/ton. If CO2 was not injected, the project would only give $15.55 M.

Agrawal, Angeni

2003-05-01T23:59:59.000Z

98

Type B: Andesitic Volcanic Resource | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Type B: Andesitic Volcanic Resource Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Type B: Andesitic Volcanic Resource Dictionary.png Type B: Andesitic Volcanic Resource: No definition has been provided for this term. Add a Definition Brophy Occurrence Models This classification scheme was developed by Brophy, as reported in Updating the Classification of Geothermal Resources.[1] Type A: Magma-heated, Dry Steam Resource Type B: Andesitic Volcanic Resource Type C: Caldera Resource Type D: Sedimentary-hosted, Volcanic-related Resource Type E: Extensional Tectonic, Fault-Controlled Resource

99

Multiple Ruptures For Long Valley Microearthquakes- A Link To Volcanic  

Open Energy Info (EERE)

Multiple Ruptures For Long Valley Microearthquakes- A Link To Volcanic Multiple Ruptures For Long Valley Microearthquakes- A Link To Volcanic Tremor(Question) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Multiple Ruptures For Long Valley Microearthquakes- A Link To Volcanic Tremor(Question) Details Activities (1) Areas (1) Regions (0) Abstract: Despite several episodes of ground deformation and intense seismic activity starting in 1978, the Long Valley, California, volcanic area has not produced clearly recognized volcanic tremor. Instead, a variety of atypical microearthquakes have been recorded during these episodes, including events dominated by low-frequency (long-period) or mixed high and low-frequency (hybrid) signals. During a 1997 episode, a number of unusual microearthquakes occurred within a temporary 40-station

100

Diachroneity of Basin and Range Extension and Yellowstone Hotspot Volcanism  

Open Energy Info (EERE)

Diachroneity of Basin and Range Extension and Yellowstone Hotspot Volcanism Diachroneity of Basin and Range Extension and Yellowstone Hotspot Volcanism in Northwestern Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Diachroneity of Basin and Range Extension and Yellowstone Hotspot Volcanism in Northwestern Nevada Abstract Some of the earliest volcanic rocks attributed to the Yellowstone hotspot erupted from the McDermitt caldera and related volcanic centers in northwestern Nevada at 17-15 Ma. At that time, extensional faulting was ongoing to the south in central Nevada, leading some to suggest that the nascent hotspot caused or facilitated middle Miocene Basin and Range extension. Regional geologic relationships indicate that the total magnitude of extension in northwestern Nevada is low compared to the amount

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

A Distinction Technique Between Volcanic And Tectonic Depression Structures  

Open Energy Info (EERE)

Distinction Technique Between Volcanic And Tectonic Depression Structures Distinction Technique Between Volcanic And Tectonic Depression Structures Based On The Restoration Modeling Of Gravity Anomaly- A Case Study Of The Hohi Volcanic Zone, Central Kyushu, Japan Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Distinction Technique Between Volcanic And Tectonic Depression Structures Based On The Restoration Modeling Of Gravity Anomaly- A Case Study Of The Hohi Volcanic Zone, Central Kyushu, Japan Details Activities (0) Areas (0) Regions (0) Abstract: In this study, we propose a numerical modeling technique which restores the gravity anomaly of tectonic origin and identifies the gravity low of caldera origin. The identification is performed just by comparing the restored gravity anomalies with the observed gravity anomalies, thus we

102

High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone  

Open Energy Info (EERE)

High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone National Park Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone National Park Details Activities (1) Areas (1) Regions (0) Abstract: High-resolution aeromagnetic data acquired over Yellowstone National Park (YNP) show contrasting patterns reflecting differences in rock composition, types and degree of alteration, and crustal structures that mirror the variable geology of the Yellowstone Plateau. The older, Eocene, Absaroka Volcanic Supergroup, a series of mostly altered, andesitic volcanic and volcaniclastic rocks partially exposed in mountains on the eastern margin of YNP, produces high-amplitude, positive magnetic

103

Volcanism Studies: Final Report for the Yucca Mountain Project  

SciTech Connect

This report synthesizes the results of volcanism studies conducted by scientists at the Los Alamos National Laboratory and collaborating institutions on behalf of the Department of Energy's Yucca Mountain Project. An assessment of the risk of future volcanic activity is one of many site characterization studies that must be completed to evaluate the Yucca Mountain site for potential long-term storage of high-level radioactive waste. The presence of several basaltic volcanic centers in the Yucca Mountain region of Pliocene and Quaternary age indicates that there is a finite risk of a future volcanic event occurring during the 10,000-year isolation period of a potential repository. Chapter 1 introduces the volcanism issue for the Yucca Mountain site and provides the reader with an overview of the organization, content, and significant conclusions of this report. The risk of future basaltic volcanism is the primary topic of concern including both events that intersect a potential repository and events that occur near or within the waste isolation system of a repository. Future volcanic events cannot be predicted with certainty but instead are estimated using formal methods of probabilistic volcanic hazard assessment (PVHA). Chapter 2 describes the volcanic history of the Yucca Mountain region (YMR) and emphasizes the Pliocene and Quaternary volcanic record, the interval of primary concern for volcanic risk assessment. The distribution, eruptive history, and geochronology of Plio-Quaternary basalt centers are described by individual center emphasizing the younger postcaldera basalt (<5 Ma). The Lathrop Wells volcanic center is described in detail because it is the youngest basalt center in the YMR. The age of the Lathrop Wells center is now confidently determined to be about 75 thousand years old. Chapter 3 describes the tectonic setting of the YMR and presents and assesses the significance of multiple alternative tectonic models. The Crater Flat volcanic zone is defined and described as one of many alternative models of the structural controls of the distribution of Plio-Quaternary basalt centers in the YMR. Geophysical data are described for the YMR and are used as an aid to understand the distribution of basaltic volcanic centers. Chapter 4 discusses the petrologic and geochemical features of basaltic volcanism in the YMR, the southern Great Basin and the Basin and Range province. Geochemical and isotopic data are presented for post-Miocene basalts of the Yucca Mountain region. Alternative petrogenetic models are assessed for the formation of the Lathrop Wells volcanic center. Based on geochemical data, basaltic ash in fault trenches near Yucca Mountain is shown to have originated from the Lathrop Wells center. Chapter 5 synthesizes eruptive and subsurface effects of basaltic volcanism on a potential repository and summarizes current concepts of the segregation, ascent, and eruption of basalt magma. Chapter 6 synthesizes current knowledge of the probability of disruption of a potential repository at Yucca Mountain. In 1996, an Expert Elicitation panel was convened by DOE that independently conducted PVHA for the Yucca Mountain site. Chapter 6 does not attempt to revise this PVHA; instead, it further examines the sensitivity of variables in PVHA. The approaches and results of PVHA by the expert judgment panel are evaluated and incorporated throughout this chapter. The disruption ratio (E2) is completely re-evaluated using simulation modeling that describes volcanic events based on the geometry of basaltic feeder dikes. New estimates of probability bounds are developed. These comparisons show that it is physically implausible for the probability of magmatic disruption of the Yucca Mountain site to be > than about 7 x 10{sup {minus}8} events yr{sup {minus}1} . Simple probability estimates are used to assess possible implications of not drilling aeromagnetic anomalies in the Amargosa Valley. The sensitivity of the disruption probability to the location of northeast boundaries of volcanic zones near the Yucca Mountain si

Bruce M. Crowe; Frank V. Perry; Greg A. Valentine; Lynn M. Bowker

1998-12-01T23:59:59.000Z

104

Volcanism Studies: Final Report for the Yucca Mountain Project  

Science Conference Proceedings (OSTI)

This report synthesizes the results of volcanism studies conducted by scientists at the Los Alamos National Laboratory and collaborating institutions on behalf of the Department of Energy's Yucca Mountain Project. An assessment of the risk of future volcanic activity is one of many site characterization studies that must be completed to evaluate the Yucca Mountain site for potential long-term storage of high-level radioactive waste. The presence of several basaltic volcanic centers in the Yucca Mountain region of Pliocene and Quaternary age indicates that there is a finite risk of a future volcanic event occurring during the 10,000-year isolation period of a potential repository. Chapter 1 introduces the volcanism issue for the Yucca Mountain site and provides the reader with an overview of the organization, content, and significant conclusions of this report. The risk of future basaltic volcanism is the primary topic of concern including both events that intersect a potential repository and events that occur near or within the waste isolation system of a repository. Future volcanic events cannot be predicted with certainty but instead are estimated using formal methods of probabilistic volcanic hazard assessment (PVHA). Chapter 2 describes the volcanic history of the Yucca Mountain region (YMR) and emphasizes the Pliocene and Quaternary volcanic record, the interval of primary concern for volcanic risk assessment. The distribution, eruptive history, and geochronology of Plio-Quaternary basalt centers are described by individual center emphasizing the younger postcaldera basalt (basalt center in the YMR. The age of the Lathrop Wells center is now confidently determined to be about 75 thousand years old. Chapter 3 describes the tectonic setting of the YMR and presents and assesses the significance of multiple alternative tectonic models. The Crater Flat volcanic zone is defined and described as one of many alternative models of the structural controls of the distribution of Plio-Quaternary basalt centers in the YMR. Geophysical data are described for the YMR and are used as an aid to understand the distribution of basaltic volcanic centers. Chapter 4 discusses the petrologic and geochemical features of basaltic volcanism in the YMR, the southern Great Basin and the Basin and Range province. Geochemical and isotopic data are presented for post-Miocene basalts of the Yucca Mountain region. Alternative petrogenetic models are assessed for the formation of the Lathrop Wells volcanic center. Based on geochemical data, basaltic ash in fault trenches near Yucca Mountain is shown to have originated from the Lathrop Wells center. Chapter 5 synthesizes eruptive and subsurface effects of basaltic volcanism on a potential repository and summarizes current concepts of the segregation, ascent, and eruption of basalt magma. Chapter 6 synthesizes current knowledge of the probability of disruption of a potential repository at Yucca Mountain. In 1996, an Expert Elicitation panel was convened by DOE that independently conducted PVHA for the Yucca Mountain site. Chapter 6 does not attempt to revise this PVHA; instead, it further examines the sensitivity of variables in PVHA. The approaches and results of PVHA by the expert judgment panel are evaluated and incorporated throughout this chapter. The disruption ratio (E2) is completely re-evaluated using simulation modeling that describes volcanic events based on the geometry of basaltic feeder dikes. New estimates of probability bounds are developed. These comparisons show that it is physically implausible for the probability of magmatic disruption of the Yucca Mountain site to be > than about 7 x 10{sup {minus}8} events yr{sup {minus}1} . Simple probability estimates are used to assess possible implications of not drilling aeromagnetic anomalies in the Amargosa Valley. The sensitivity of the disruption probability to the location of northeast boundaries of volcanic zones near the Yucca Mountain si

Bruce M. Crowe; Frank V. Perry; Greg A. Valentine; Lynn M. Bowker

1998-12-01T23:59:59.000Z

105

A Miocene Island-Arc Volcanic Seamount- The Takashibiyama Formation,  

Open Energy Info (EERE)

Island-Arc Volcanic Seamount- The Takashibiyama Formation, Island-Arc Volcanic Seamount- The Takashibiyama Formation, Shimane Peninsula, Sw Japan Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Miocene Island-Arc Volcanic Seamount- The Takashibiyama Formation, Shimane Peninsula, Sw Japan Details Activities (0) Areas (0) Regions (0) Abstract: The Miocene volcanic complex of the Takashibiyama Formation consists largely of subalkali, subaqueous basalt to andesite lavas and andesite to dacite subaqueous volcaniclastic flow deposits. Most of subaqueous lavas are moderately to intensely brecciated with rugged rough surfaces and ramp structures similar to subaerial block lava. Volcaniclastic flow deposits commonly include basalt to andesite lava fragments and/or pyroclastic materials, and are similar in internal

106

Surface Mercury Geochemistry As A Guide To Volcanic Vent Structure...  

Open Energy Info (EERE)

Login | Sign Up Search Page Edit History Facebook icon Twitter icon Surface Mercury Geochemistry As A Guide To Volcanic Vent Structure And Zones Of High Heat Flow In The...

107

An Expert System For The Tectonic Characterization Of Ancient Volcanic  

Open Energy Info (EERE)

System For The Tectonic Characterization Of Ancient Volcanic System For The Tectonic Characterization Of Ancient Volcanic Rocks Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Expert System For The Tectonic Characterization Of Ancient Volcanic Rocks Details Activities (0) Areas (0) Regions (0) Abstract: The expert system approach enables geochemical evidence to be integrated with geological, petrological and mineralogical evidence in identifying the eruptive setting of ancient volcanic rocks. This paper explains the development of ESCORT, an Expert System for Characterization of Rock Types. ESCORT uses as its knowledge base a set of dispersion matrices derived from a geochemical data bank of some 8000 immobile element analyses, together with tables of magma-type membership probabilities based

108

Geothermometry At Lassen Volcanic National Park Area (Janik & Mclaren,  

Open Energy Info (EERE)

Geothermometry At Lassen Volcanic National Park Area (Janik & Mclaren, Geothermometry At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Exploration Activity Details Location Lassen Volcanic National Park Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes Analyses of eight well samples taken consecutively during the flow test showed an inverse correlation between NH3 and Cl_ concentrations. The last sample taken had a pH of 8.35 and contained 2100 ppm Cl_ and 0.55 ppm NH3. Ratios of Na+/K+ and Na+/Cl_ remained nearly constant throughout the flow test. Cation geothermometers (with inherent uncertainties of at least

109

Late Cenozoic volcanism, geochronology, and structure of the Coso Range,  

Open Energy Info (EERE)

Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: The Coso Range lies at the west edge of the Great Basin, adjacent to the southern part of the Sierra Nevada. A basement complex of pre-Cenozoic plutonic and metamorphic rocks is partly buried by approx.35 km^3 of late Cenozoic volcanic rocks that were erupted during two periods, as defined by K-Ar dating: (1) 4.0--2.5 m.y., approx.31 km^3 of basalt, rhyodacite, dacite, andesite, and rhyolite, in descending order of abundance, and (2) < or =1.1 m.y., nearly equal amounts of basalt and

110

A Volcanologist'S Review Of Atmospheric Hazards Of Volcanic Activity- Fuego  

Open Energy Info (EERE)

Volcanologist'S Review Of Atmospheric Hazards Of Volcanic Activity- Fuego Volcanologist'S Review Of Atmospheric Hazards Of Volcanic Activity- Fuego And Mount St Helens Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Volcanologist'S Review Of Atmospheric Hazards Of Volcanic Activity- Fuego And Mount St Helens Details Activities (0) Areas (0) Regions (0) Abstract: The large amount of scientific data collected on the Mount St. Helens eruption has resulted in significant changes in thinking about the atmospheric hazards caused by explosive volcanic activity. The hazard posed by fine silicate ash with long residence time in the atmosphere is probably much less serious than previously thought. The Mount St. Helens eruption released much fine ash in the upper atmosphere. These silicates were removed very rapidly due to a process of particle aggregation (Sorem, 1982;

111

Jet Engine Coatings Resist Volcanic Ash Damage - Materials ...  

Science Conference Proceedings (OSTI)

Posted on: 4/27/2011 12:00:00 AM... Concerns about the damage that volcanic ash clouds can inflict on aircraft engines resulted in last year's $2 billion...

112

Seasonally Modulated Tropical Drought Induced by Volcanic Aerosol  

Science Conference Proceedings (OSTI)

Major volcanic events with a high loading of stratospheric aerosol have long been known to cause cooling, but their impact on precipitation has only recently been emphasized, especially as an analog for potential geoengineering of climate. Here, ...

Renu Joseph; Ning Zeng

2011-04-01T23:59:59.000Z

113

Major Volcanic Eruptions and Climate: A Critical Evaluation  

Science Conference Proceedings (OSTI)

This paper examines whether major volcanic eruptions of the past century have had a significant impact on surface land and ocean temperatures surface pressure and precipitation. Both multieruption composites and individual eruption time series ...

Clifford F. Mass; David A. Portman

1989-06-01T23:59:59.000Z

114

The Effect of Explosive Tropical Volcanism on ENSO  

Science Conference Proceedings (OSTI)

This study examines the response of El NioSouthern Oscillation (ENSO) to massive volcanic eruptions in a suite of coupled general circulation model (CGCM) simulations utilizing the Community Climate System Model, version 3 (CCSM3). The authors ...

Shayne McGregor; Axel Timmermann

2011-04-01T23:59:59.000Z

115

Volcanic Ash Forecast Transport And Dispersion (VAFTAD) Model  

Science Conference Proceedings (OSTI)

The National Oceanic and Atmospheric Administration (NOAA) Air Resources Laboratory (ARL) has developed a Volcanic Ash Forecast Transport And Dispersion (VAFTAD) model for emergency response use focusing on hazards to aircraft flight operations. ...

Jerome L. Heffter; Barbara J. B. Stunder

1993-12-01T23:59:59.000Z

116

Quality-Driven Volcanic Earthquake Detection Using Wireless Sensor Networks  

Science Conference Proceedings (OSTI)

Volcano monitoring is of great interest to public safety and scientific explorations. However, traditional volcanic instrumentation such as broadband seismometers are expensive, power-hungry, bulky, and difficult to install. Wireless sensor networks ...

Rui Tan; Guoliang Xing; Jinzhu Chen; Wen-Zhan Song; Renjie Huang

2010-11-01T23:59:59.000Z

117

Applications of the VLF Induction Method For Studying Some Volcanic  

Open Energy Info (EERE)

the VLF Induction Method For Studying Some Volcanic the VLF Induction Method For Studying Some Volcanic Processes of Kilauea Volcano, Hawaii Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Applications Of The Vlf Induction Method For Studying Some Volcanic Processes Of Kilauea Volcano, Hawaii Details Activities (1) Areas (1) Regions (0) Abstract: The very low-frequency (VLF) induction method has found exceptional utility in studying various volcanic processes of Kilauea volcano, Hawaii because: (1) significant anomalies result exclusively from ionically conductive magma or still-hot intrusions (> 800°C) and the attendant electrolytically conductive hot groundwater; (2) basalt flows forming the bulk of Kilauea have very high resistivities at shallow depths that result in low geologic noise levels and relatively deep depths of

118

Analysis of State-Level Economic Impacts from the Development of Wind Power Plants in San Juan County, Utah  

Wind Powering America (EERE)

An Analysis of State-Level Economic Impacts from the Development An Analysis of State-Level Economic Impacts from the Development of Wind Power Plants in San Juan County, Utah David J. Ratliff, Captain United States Air Force Cathy L. Hartman, Ph.D. Edwin R. Stafford, Ph.D. Center for the Market Diffusion of Renewable Energy and Clean Technology Jon M. Huntsman School of Business Utah State University 3560 Old Main Hill Logan, Utah 84322-3560 DOE/GO-102010-3005 March 2010 The views expressed in this article are those of the author and do not reflect the official policy or position of the United States Air Force, Department of Defense, or the U.S. Government. The authors thank Marshall Goldberg and Elise Brown for assistance with data collection and analysis and Sandra Reategui, Suzanne Tegen, and Sara Baldwin for the helpful comments on

119

DOE/EIS-0355 Remediation of the Moab Uranium Mill Tailings, Grand and San Juan Counties, Utah, Final Environmental Impact Statement  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

I I Chapters 1-11 U.S. Department of Energy Office of Environmental Management COVER SHEET Lead Agency: U.S. Department of Energy Cooperating Agencies: * National Park Service * Bureau of Land Management * U.S. Nuclear Regulatory Commission * U.S. Army Corps of Engineers * U.S. Fish and Wildlife Service * State of Utah * U.S. Environmental Protection Agency * Ute Mountain Ute Tribe * San Juan County * Grand County * City of Blanding * Community of Bluff Title: Remediation of the Moab Uranium Mill Tailings, Grand and San Juan Counties, Utah, Final Environmental Impact Statement (DOE/EIS-0355). Contact: For further information about this Environmental Impact Statement, contact: Don Metzler Moab Federal Project Director U.S. Department of Energy

120

DOE/EIS-0355 Remediation of the Moab Uranium Mill Tailings, Grand and San Juan Counties, Utah, Final Environmental Impact Statement  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Summary Summary U.S. Department of Energy Office of Environmental Management COVER SHEET Lead Agency: U.S. Department of Energy Cooperating Agencies: * National Park Service * Bureau of Land Management * U.S. Nuclear Regulatory Commission * U.S. Army Corps of Engineers * U.S. Fish and Wildlife Service * State of Utah * U.S. Environmental Protection Agency * Ute Mountain Ute Tribe * San Juan County * Grand County * City of Blanding * Community of Bluff Title: Remediation of the Moab Uranium Mill Tailings, Grand and San Juan Counties, Utah, Final Environmental Impact Statement (DOE/EIS-0355). Contact: For further information about this Environmental Impact Statement, contact: Don Metzler Moab Federal Project Director U.S. Department of Energy 2597 B ¾ Road

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121

Seismicity And Fluid Geochemistry At Lassen Volcanic National Park,  

Open Energy Info (EERE)

Seismicity And Fluid Geochemistry At Lassen Volcanic National Park, Seismicity And Fluid Geochemistry At Lassen Volcanic National Park, California- Evidence For Two Circulation Cells In The Hydrothermal System Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Seismicity And Fluid Geochemistry At Lassen Volcanic National Park, California- Evidence For Two Circulation Cells In The Hydrothermal System Details Activities (7) Areas (2) Regions (0) Abstract: Seismic analysis and geochemical interpretations provide evidence that two separate hydrothermal cells circulate within the greater Lassen hydrothermal system. One cell originates south to SW of Lassen Peak and within the Brokeoff Volcano depression where it forms a reservoir of hot fluid (235-270°C) that boils to feed steam to the high-temperature

122

DOE/EIS-0355 Remediation of the Moab Uranium Mill Tailings, Grand and San Juan Counties, Utah, Final Environmental Impact Statement  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Volumes IV Volumes IV Chapters 4 -5 Comment Responses U.S. Department of Energy Office of Environmental Management Remediation of the Moab Uranium Mill Tailings, Grand and San Juan Counties, Utah Final Environmental Impact Statement i Contents Volume IV 4.0 Responses............................................................................................................................4-1 4.1 Response Index Tables ..............................................................................................4-1 4.2 Responses to Comments ..........................................................................................4-70 5.0 References...........................................................................................................................5-1

123

Application of Advanced Exploration Technologies for the Development of Mancos Formation Oil Reservoirs, Jicarilla Apache Indian Nation, San Juan Basin, New Mexico  

SciTech Connect

The objectives of this project are to: (1) develop an exploration rationale for the Mancos shale in the north-eastern San Juan basin; (2) assess the regional prospectivity of the Mancos in the northern Nation lands based on that rationale; (3) identify specific leads in the northern Nation as appropriate; (4) forecast pro-forma production, reserves and economics for any leads identified; and (5) package and disseminate the results to attract investment in Mancos development on the Nation lands.

Reeves, Scott; Billingsley, Randy

2002-09-09T23:59:59.000Z

124

Remote monitoring of volcanic gases using passive Fourier transform spectroscopy  

SciTech Connect

Volcanic gases provide important insights on the internal workings of volcanoes and changes in their composition and total flux can warn of impending changes in a volcano`s eruptive state. In addition, volcanoes are important contributors to the earth`s atmosphere, and understanding this volcanic contribution is crucial for unraveling the effect of anthropogenic gases on the global climate. Studies of volcanic gases have long relied upon direct in situ sampling, which requires volcanologists to work on-site within a volcanic crater. In recent years, spectroscopic techniques have increasingly been employed to obtain information on volcanic gases from greater distances and thus at reduced risk. These techniques have included UV correlation spectroscopy (Cospec) for SO{sub 2} monitoring, the most widely-used technique, and infrared spectroscopy in a variety of configurations, both open- and closed-path. Francis et al. have demonstrated good results using the sun as the IR source. This solar occultation technique is quite useful, but puts rather strong restrictions on the location of instrument and is thus best suited to more accessible volcanoes. In order to maximize the flexibility and range of FTIR measurements at volcanoes, work over the last few years has emphasized techniques which utilize the strong radiance contrast between the volcanic gas plume and the sky. The authors have successfully employed these techniques at several volcanoes, including the White Island and Ruapehu volcanoes in New Zealand, the Kilauea volcano on Hawaii, and Mt. Etna in Italy. But Popocatepetl (5452 m), the recently re-awakened volcano 70 km southeast of downtown Mexico City, has provided perhaps the best examples to date of the usefulness of these techniques.

Love, S.P.; Goff, F.; Counce, D.; Schmidt, S.C. [Los Alamos National Lab., NM (United States); Siebe, C.; Delgado, H. [Univ. Nactional Autonoma de Mexico, Coyoacan (Mexico)

1999-06-01T23:59:59.000Z

125

Spectral properties and reflectance curves of the revealed volcanic rocks in Syria using radiometric measurements  

Science Conference Proceedings (OSTI)

This research aimed at studying the spectral reflectance intensity of different exposed volcanic rocks in Syria, and drawing their curves by radiometer measurements. In order to reach this goal, we have studied different kinds of volcanic rocks related ...

M. Rukieh; A. M. Al-Kafri; A. W. Khalaf

2007-07-01T23:59:59.000Z

126

An Advanced System to Monitor the 3D Structure of Diffuse Volcanic Ash Clouds  

Science Conference Proceedings (OSTI)

Major disruptions of the aviation system from recent volcanic eruptions have intensified discussions about and increased the international consensus toward improving volcanic ash warnings. Central to making progress is to better discern low ...

J.-P. Vernier; T. D. Fairlie; J. J. Murray; A. Tupper; C. Trepte; D. Winker; J. Pelon; A. Garnier; J. Jumelet; M. Pavolonis; A. H. Omar; K. A. Powell

2013-09-01T23:59:59.000Z

127

Population Dynamics of Aedes aegypti and Dengue as Influenced by Weather and Human Behavior in San Juan, Puerto Rico  

E-Print Network (OSTI)

Previous studies on the influence of weather on Aedes aegypti dynamics in Puerto Rico suggested that rainfall was a significant driver of immature mosquito populations and dengue incidence, but mostly in the drier areas of the island. We conducted a longitudinal study of Ae. aegypti in two neighborhoods of the metropolitan area of San Juan city, Puerto Rico where rainfall is more uniformly distributed throughout the year. We assessed the impacts of rainfall, temperature, and human activities on the temporal dynamics of adult Ae. aegypti and oviposition. Changes in adult mosquitoes were monitored with BG-Sentinel traps and oviposition activity with CDC enhanced ovitraps. Pupal surveys were conducted during the drier and wetter parts of the year in both neighborhoods to determine the contribution of humans and rains to mosquito production. Mosquito dynamics in each neighborhood was compared with dengue incidence in their respective municipalities during the study. Our results showed that: 1. Most pupae were produced in containers managed by people, which explains the prevalence of adult mosquitoes at times when rainfall was scant; 2. Water meters were documented for the first time as productive habitats for Ae. aegypti; 3. Even though Puerto Rico has a reliable supply of tap water and an active tire recycling program, water storage containers and discarded tires were important mosquito producers; 4. Peaks in mosquito density preceded maximum dengue incidence; and 5. Ae. aegypti dynamics were driven by weather and human

Roberto Barrera; Manuel Amador; Andrew J. Mackay

2011-01-01T23:59:59.000Z

128

Tectonic versus volcanic origin of the summit depression at Medicine Lake Volcano, California  

SciTech Connect

Medicine Lake Volcano is a Quaternary shield volcano located in a tectonically complex and active zone at the transition between the Basin and Range Province and the Cascade Range of the Pacific Province. The volcano is topped by a 7x12 km elliptical depression surrounded by a discontinuous constructional ring of basaltic to rhyolitic lava flows. This thesis explores the possibility that the depression may have formed due to regional extension (rift basin) or dextral shear (pull-apart basin) rather than through caldera collapse and examines the relationship between regional tectonics and localized volcanism. Existing data consisting of temperature and magnetotelluric surveys, alteration mineral studies, and core logging were compiled and supplemented with additional core logging, field observations, and fault striae studies in paleomagnetically oriented core samples. These results were then synthesized with regional fault data from existing maps and databases. Faulting patterns near the caldera, extension directions derived from fault striae P and T axes, and three-dimensional temperature and alteration mineral models are consistent with slip across arcuate ring faults related to magma chamber deflation during flank eruptions and/or a pyroclastic eruption at about 180 ka. These results are not consistent with a rift or pull-apart basin. Limited subsidence can be attributed to the relatively small volume of ash-flow tuff released by the only known major pyroclastic eruption and is inconsistent with the observed topographic relief. The additional relief can be explained by constructional volcanism. Striae from unoriented and oriented core, augmented by striae measurements in outcrop suggest that Walker Lane dextral shear, which can be reasonably projected from the southeast, has probably propagated into the Medicine Lake area. Most volcanic vents across Medicine Lake Volcano strike north-south, suggesting they are controlled by crustal weakness related to Basin and Range extension. Interaction of dextral shear, Basin and Range extension, and the zone of crustal weakness expressed as the Mount Shasta-Medicine Lake volcanic highland controlled the location and initiation of Medicine Lake Volcano at about 500 ka.

Mark Leon Gwynn

2010-05-01T23:59:59.000Z

129

TECTONIC VERSUS VOLCANIC ORIGIN OF THE SUMMIT DEPRESSION AT MEDICINE LAKE VOLCANO, CALIFORNIA  

DOE Green Energy (OSTI)

Medicine Lake Volcano is a Quaternary shield volcano located in a tectonically complex and active zone at the transition between the Basin and Range Province and the Cascade Range of the Pacific Province. The volcano is topped by a 7x12 km elliptical depression surrounded by a discontinuous constructional ring of basaltic to rhyolitic lava flows. This thesis explores the possibility that the depression may have formed due to regional extension (rift basin) or dextral shear (pull-apart basin) rather than through caldera collapse and examines the relationship between regional tectonics and localized volcanism. Existing data consisting of temperature and magnetotelluric surveys, alteration mineral studies, and core logging were compiled and supplemented with additional core logging, field observations, and fault striae studies in paleomagnetically oriented core samples. These results were then synthesized with regional fault data from existing maps and databases. Faulting patterns near the caldera, extension directions derived from fault striae P and T axes, and three-dimensional temperature and alteration mineral models are consistent with slip across arcuate ring faults related to magma chamber deflation during flank eruptions and/or a pyroclastic eruption at about 180 ka. These results are not consistent with a rift or pull-apart basin. Limited subsidence can be attributed to the relatively small volume of ash-flow tuff released by the only known major pyroclastic eruption and is inconsistent with the observed topographic relief. The additional relief can be explained by constructional volcanism. Striae from unoriented and oriented core, augmented by striae measurements in outcrop suggest that Walker Lane dextral shear, which can be reasonably projected from the southeast, has probably propagated into the Medicine Lake area. Most volcanic vents across Medicine Lake Volcano strike north-south, suggesting they are controlled by crustal weakness related to Basin and Range extension. Interaction of dextral shear, Basin and Range extension, and the zone of crustal weakness expressed as the Mount Shasta-Medicine Lake volcanic highland controlled the location and initiation of Medicine Lake Volcano at about 500 ka.

Mark Leon Gwynn

2010-05-01T23:59:59.000Z

130

G:arrFIELD CODE 5 FILESPreliminary Section 2  

U.S. Energy Information Administration (EIA)

ice canyon grand ut 019 012193 n 1982 indian canyon duchesne ut 013 010945 n 1977 ismay san juan ut 037 349587 oa 1956 ismay south san juan ut 037 ...

131

Type D: Sedimentary-hosted, Volcanic-related Resource | Open Energy  

Open Energy Info (EERE)

D: Sedimentary-hosted, Volcanic-related Resource D: Sedimentary-hosted, Volcanic-related Resource Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Type D: Sedimentary-hosted, Volcanic-related Resource Dictionary.png Type D: Sedimentary-hosted, Volcanic-related Resource: No definition has been provided for this term. Add a Definition Brophy Occurrence Models This classification scheme was developed by Brophy, as reported in Updating the Classification of Geothermal Resources. Type A: Magma-heated, Dry Steam Resource Type B: Andesitic Volcanic Resource Type C: Caldera Resource Type D: Sedimentary-hosted, Volcanic-related Resource Type E: Extensional Tectonic, Fault-Controlled Resource Type F: Oceanic-ridge, Basaltic Resource Sedimentary-hosted volcanic-related resources are special in that the

132

Economic and Conservation Evaluation of Capital Renovation Projects: Hidalgo County Irrigation District No. 2 (San Juan) - Relining Lateral A - Final  

E-Print Network (OSTI)

Initial construction costs and net annual changes in operating and maintenance expenses are identified for a single-component capital renovation project proposed by Hidalgo County Irrigation District No. 2, (a.k.a. San Juan) to the North American Development Bank (NADBank) and Bureau of Reclamation. The proposed project involves relining Lateral A with a geomembrane and shotcrete cover. Both nominal and real estimates of water and energy savings and expected economic and financial costs of those savings are identified throughout the anticipated useful life for the proposed project. Sensitivity results for both the cost of water savings and cost of energy savings are presented for several important parameters. Annual water and energy savings forthcoming from the total project are estimated, using amortization procedures, to be 2,542 ac-ft of water per year and 551,738,646 BTUs (161,705 kwh) of energy per year. The calculated economic and financial cost of water savings is estimated to be $74.49 per ac-ft. The calculated economic and financial cost of energy savings is estimated to be $0.0003698 per BTU ($1.262 per kwh). In addition, expected real (vs nominal) values are indicated for the Bureau of Reclamations three principal evaluation measures specified in the United States Public Law 106-576 legislation. The initial construction cost per ac-ft of water savings measure is $57.76 per ac-ft of water savings. The initial construction cost per BTU (kwh) of energy savings measure is $0.0002661 per BTU ($0.908 per kwh). The ratio of initial construction costs per dollar of total annual economic savings is estimated to be -14.29.

Popp, Michael; Robinson, John; Sturdivant, Allen; Lacewell, Ronald; Rister, Edward

2003-07-01T23:59:59.000Z

133

Economic and Conservation Evaluation of Capital Renovation Project: Hidalgo County Irrigation District No. 2 (San Juan) - Relining Lateral A Preliminary  

E-Print Network (OSTI)

Initial construction costs and net annual changes in operating and maintenance expenses are identified for a single-component capital renovation project proposed by Hidalgo County Irrigation District No. 2, (a.k.a. San Juan) to the North American Development Bank (NADBank) and Bureau of Reclamation. The proposed project involves relining Lateral A with a geomembrane and shotcrete cover. Both nominal and real estimates of water and energy savings and expected economic and financial costs of those savings are identified throughout the anticipated useful life for the proposed project. Sensitivity results for both the cost of water savings and cost of energy savings are presented for several important parameters. Annual water and energy savings forthcoming from the total project are estimated, using amortization procedures, to be 2,542 ac-ft of water per year and 551,738,646 BTUs (161,705 kwh) of energy per year. The calculated economic and financial cost of water savings is estimated to be $74.49 per ac-ft. The calculated economic and financial cost of energy savings is estimated to be $0.0003698 per BTU ($1.262 per kwh). In addition, expected real (vs nominal) values are indicated for the Bureau of Reclamations three principal evaluation measures specified in the United States Public Law 106-576 legislation. The initial construction cost per ac-ft of water savings measure is $57.76 per ac-ft of water savings. The initial construction cost per BTU (kwh) of energy savings measure is $0.0002661 per BTU ($0.908 per kwh). The ratio of initial construction costs per dollar of total annual economic savings is estimated to be -14.29.

Rister, M. Edward; Lacewell, Ronald D.; Sturdivant, Allen W.; Robinson, John R.C.; Popp, Michael C.

2003-05-01T23:59:59.000Z

134

DOE/EIS-0378-SA-01: Supplement Analysis for the Port Angeles-Juan de Fuca Transmission Project Final Environmental Impact Statement (DOE/EIS-0378-SA-01) (02/05/08)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

February 5, 2008 February 5, 2008 REPLY TO ATTN OF: KEC-4 SUBJECT: Supplement Analysis for the Port Angeles-Juan de Fuca Transmssion Project Final Environmental Impact Statement (DOE/EIS-0378/SA-01) Mark Korsness Project Manager - TEP TPP-3 Proposed Action: Relocation of the marine exit hole for the horizontal directionally drilled (HDD) hole that would be drilled under the Proposed Action. Proposed by: Sea Breeze Olympic Converter LP (Sea Breeze). Location: Port Angeles Harbor near Port Angeles, Washington. Background: As part of its proposed international transmission cable analyzed in the Port Angeles-Juan de Fuca Transmssion Project EIS, Sea Breeze has proposed the drilling of a HDD hole to transition the cable from the sea bed of the Strait of Juan de Fuca to land. The HDD hole

135

Compound and Elemental Analysis At Lassen Volcanic National Park Area  

Open Energy Info (EERE)

Janik & Mclaren, 2010) Janik & Mclaren, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Compound and Elemental Analysis At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Exploration Activity Details Location Lassen Volcanic National Park Area Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes Analyses of eight well samples taken consecutively during the flow test showed an inverse correlation between NH3 and Cl_ concentrations. The last sample taken had a pH of 8.35 and contained 2100 ppm Cl_ and 0.55 ppm NH3. Ratios of Na+/K+ and Na+/Cl_ remained nearly constant throughout the flow test. Cation geothermometers (with inherent uncertainties of at least

136

Materials compatibility with the volcanic environment. Final report  

DOE Green Energy (OSTI)

Attempts were made to run materials compatibility, volcanic gas collection, and heat transfer experiments during the 1977 Kilauea eruption. Preliminary results from the recovered samples showed that Fe, Ni, and Fe-Ni alloys were the most heavily oxidized. The Mo and W alloys showed some attack and only neglible reaction was seen on 310 stainless, Hastelloy C, Inconel 600, Inconel 718, Rene 41, and Nichrome. Results are qualitative only. (DLC)

Htun, K.M.

1984-03-08T23:59:59.000Z

137

DOE/EIS-0355 Remediation of the Moab Uranium Mill Tailings, Grand and San Juan Counties, Utah, Final Environmental Impact Statement  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

II II Appendices A-H U.S. Department of Energy Office of Environmental Management Remediation of the Moab Uranium Mill Tailings, Grand and San Juan Counties, Utah Final Environmental Impact Statement i Contents Page Volume II Appendix A, Biological Assessment/Screening Level Risk Assessment/Biological Opinion Appendix A1, Biological Assessment A1-1.0 Introduction ..............................................................................................................A1-1 A1-2.0 Species Evaluated.....................................................................................................A1-3 A1-2.1 Critical Habitat..................................................................................................A1-3 A1-3.0 Consultation to Date.................................................................................................A1-4

138

A Physical Model For The Origin Of Volcanism Of The Tyrrhenian Margin- The  

Open Energy Info (EERE)

Model For The Origin Of Volcanism Of The Tyrrhenian Margin- The Model For The Origin Of Volcanism Of The Tyrrhenian Margin- The Case Of Neapolitan Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Physical Model For The Origin Of Volcanism Of The Tyrrhenian Margin- The Case Of Neapolitan Area Details Activities (0) Areas (0) Regions (0) Abstract: The onset of volcanism in the Neapolitan area and the tensile tectonics of the Tyrrhenian margin of the Apennine chain have been related to the opening of the Tyrrhenian Basin, which may have resulted in horizontal asthenosphere flows giving rise, in turn, to crustal distension, local mantle upwellings and ensuing volcanism. Geological and structural data were taken into consideration: the existence of a shallow crust-mantle discontinuity in the Neapolitan area, the onset of volcanism in a

139

A Pliocene Shoaling Basaltic Seamount- Ba Volcanic Group At Rakiraki, Fiji  

Open Energy Info (EERE)

Pliocene Shoaling Basaltic Seamount- Ba Volcanic Group At Rakiraki, Fiji Pliocene Shoaling Basaltic Seamount- Ba Volcanic Group At Rakiraki, Fiji Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Pliocene Shoaling Basaltic Seamount- Ba Volcanic Group At Rakiraki, Fiji Details Activities (0) Areas (0) Regions (0) Abstract: At Rakiraki in northeastern Viti Levu, the Pliocene Ba Volcanic Group comprises gently dipping, pyroxene-phyric basaltic lavas, including pillow lava, and texturally diverse volcanic breccia interbedded with conglomerate and sandstone. Three main facies associations have been identified: (1) The primary volcanic facies association includes massive basalt (flows and sills), pillow lava and related in-situ breccia (pillow-fragment breccia, autobreccia, in-situ hyaloclastite, peperite).

140

Teleseismic-Seismic Monitoring At Lassen Volcanic National Park Area (Janik  

Open Energy Info (EERE)

Teleseismic-Seismic Monitoring At Lassen Volcanic National Park Area (Janik Teleseismic-Seismic Monitoring At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Exploration Activity Details Location Lassen Volcanic National Park Area Exploration Technique Teleseismic-Seismic Monitoring Activity Date Usefulness useful DOE-funding Unknown References Cathy J. Janik, Marcia K. McLaren (2010) Seismicity And Fluid Geochemistry At Lassen Volcanic National Park, California- Evidence For Two Circulation Cells In The Hydrothermal System Retrieved from "http://en.openei.org/w/index.php?title=Teleseismic-Seismic_Monitoring_At_Lassen_Volcanic_National_Park_Area_(Janik_%26_Mclaren,_2010)&oldid=425654"

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

NREL Response to the Report 'Study of the Effects on Employment of Public Aid to Renewable Energy Sources' from King Juan Carlos University (Spain) (White Paper)  

SciTech Connect

Job generation has been a part of the national dialogue surrounding energy policy and renewable energy (RE) for many years. RE advocates tout the ability of renewable energy to support new job opportunities in rural America and the manufacturing sector. Others argue that spending on renewable energy is an inefficient allocation of resources and can result in job losses in the broader economy. The report, Study of the Effects on Employment of Public Aid to Renewable Energy Sources, from King Juan Carlos University in Spain, is one recent addition to this debate. This report asserts that, on average, every renewable energy job in Spain 'destroyed' 2.2 jobs in the broader Spanish economy. The authors also apply this ratio to the U.S. context to estimate expected job loss from renewable energy development and policy in the United States. This memo discusses fundamental and technical limitations of the analysis by King Juan Carlos University and notes critical assumptions implicit in the ultimate conclusions of their work. The memo also includes a review of traditional employment impact analyses that rely on accepted, peer-reviewed methodologies, and it highlights specific variables that can significantly influence the results of traditional employment impact analysis.

Lantz, E.; Tegen, S.

2009-08-01T23:59:59.000Z

142

Surface Gas Sampling At Lassen Volcanic National Park Area (Janik &  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Surface Gas Sampling At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Surface Gas Sampling At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Exploration Activity Details Location Lassen Volcanic National Park Area Exploration Technique Surface Gas Sampling Activity Date Usefulness not indicated DOE-funding Unknown References Cathy J. Janik, Marcia K. McLaren (2010) Seismicity And Fluid Geochemistry At Lassen Volcanic National Park, California- Evidence For Two

143

Waterproofing and Strengthening Volcanic Tuff in Waste Repositories  

Science Conference Proceedings (OSTI)

Waste repositories from surface trenches and shafts at Los Alamos to drilled tunnels at Yucca Mountain are being built in volcanic Tuff, a soft compacted material that is permeable to water and air. US Department of Energy documents on repository design identify the primary design goal of 'preventing water from reaching the waste canisters, dissolving the canisters and carrying the radioactive waste particles away from the repository'. Designers expect to achieve this by use of multiple barriers along with careful placement of the repository both well above the water table and well above the ground level in a mountain. Though repositories are located in areas that have a historically dry climate to minimize the impact of rainfall infiltration, global warming phenomena may have the potential to alter regional climate patterns - potentially leading to higher infiltration rates. Conventional methods of sealing fractures within volcanic tuff may not be sufficiently robust or long lived to isolate a repository shaft from water for the required duration. A new grouting technology based on molten wax shows significant promise for producing the kind of long term sealing performance required. Molten wax is capable of permeating a significant distance through volcanic tuff, as well as sealing fractures by permeation that is thermally dependent instead of chemically or time dependent. The wax wicks into and saturates tuff even if no fractures are present, but penetrates and fills only the heated area. Heated portions of the rock fill like a vessel. The taffy-like wax has been shown to waterproof the tuff, and significantly increase its resistance to fracture. This wax was used in 2004 for grouting of buried radioactive beryllium waste at the Idaho National Laboratory, chiefly to stop the water based corrosion reactions of the waste. The thermoplastic material contains no water and does not dry out or change with age. Recent studies indicate that this kind of wax material may be inherently resistant to bio-degradation. (authors)

Carter, E.E.; Carter, P.E. [Technologies Co, Texas (United States); Cooper, D.C. [Ph.D. Idaho National Laboratory, Idaho Falls, ID (United States)

2008-07-01T23:59:59.000Z

144

High Resolution Aircraft Scanner Mapping of Geothermal and Volcanic Areas  

DOE Green Energy (OSTI)

High spectral resolution GEOSCAN Mkll multispectral aircraft scanner imagery has been acquired, at 3-6 m spatial resolutions, over much of the Taupo Volcanic Zone as part of continuing investigations aimed at developing remote sensing techniques for exploring and mapping geothermal and volcanic areas. This study examined the 24-band: visible, near-IR (NIR), mid-IR (MIR) and thermal-IR (TIR) imagery acquired over Waiotapu geothermal area (3 m spatial resolution) and White Island volcano (6 m resolution). Results show that color composite images composed of visible and NIR wavelengths that correspond to color infrared (CIR) photographic wavelengths can be useful for distinguishing among bare ground, water and vegetation features and, in certain cases, for mapping various vegetation types. However, combinations which include an MIR band ({approx} 2.2 {micro}m) with either visible and NIR bands, or two NIR bands, are the most powerful for mapping vegetation types, water bodies, and bare and hydrothermally altered ground. Combinations incorporating a daytime TIR band with NIR and MIR bands are also valuable for locating anomalously hot features and distinguishing among different types of surface hydrothermal alteration.

Mongillo, M.A.; Cochrane, G.R.; Wood, C.P.; Shibata, Y.

1995-01-01T23:59:59.000Z

145

Interpretation of Accurate UV Polarization Lidar Measurements: Application to Volcanic Ash Number Concentration Retrieval  

Science Conference Proceedings (OSTI)

In this paper, accurate UV polarization measurements are performed on a volcanic ash cloud after long-range transport at Lyon, France (45.76N, 4.83E). The volcanic particles are released from the mid-April 2010 eruption of the Eyjafjallajkull ...

A. Miffre; G. David; B. Thomas; M. Abou Chacra; P. Rairoux

2012-04-01T23:59:59.000Z

146

Deep explosive volcanism on the Gakkel Ridge and seismological constraints on Shallow Recharge at TAG Active Mound  

E-Print Network (OSTI)

Seafloor digital imagery and bathymetric data are used to evaluate the volcanic characteristics of the 85E segment of the ultraslow spreading Gakkel Ridge (9 mm yr-). Imagery reveals that ridges and volcanic cones in the ...

Pontbriand, Claire Willis

2013-01-01T23:59:59.000Z

147

Advances in the remote sensing of volcanic activity and hazards, with special consideration to applications in developing countries  

Science Conference Proceedings (OSTI)

Applications of remote sensing for studies of volcanic activity and hazards have developed rapidly in the past 40 years. This has facilitated the observation of volcanic processes, such as ground deformation and thermal emission changes, lava flows, ...

G. G. J. Ernst; M. Kervyn; R. M. Teeuw

2008-11-01T23:59:59.000Z

148

A Morphometric Analysis Of The Submarine Volcanic Ridge South-East Of Pico  

Open Energy Info (EERE)

Morphometric Analysis Of The Submarine Volcanic Ridge South-East Of Pico Morphometric Analysis Of The Submarine Volcanic Ridge South-East Of Pico Island, Azores Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Morphometric Analysis Of The Submarine Volcanic Ridge South-East Of Pico Island, Azores Details Activities (0) Areas (0) Regions (0) Abstract: A region of crustal extension, the Azores Plateau contains excellent examples of submarine volcanic edifices constructed over a wide range of ocean depths along the Pico Ridge. Using bathymetric data and Towed Ocean Bottom Instrument (TOBI) side-scan sonar imagery, we measured the dimensions (diameter, height, slopes), shape, and texture of these volcanic edifices to further understanding of the geometric development of a submarine ridge. Our analysis and interpretation of the measurement and

149

Flow Test At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) |  

Open Energy Info (EERE)

Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Exploration Activity Details Location Lassen Volcanic National Park Area Exploration Technique Flow Test Activity Date Usefulness not indicated DOE-funding Unknown Notes Water samples were collected during nitrogen-stimulated flow tests in 1978, but no information was provided on sampling conditions. The well was flowed again for the last time in 1982, but the flow test lasted only 1 h (Thompson, 1985). References Cathy J. Janik, Marcia K. McLaren (2010) Seismicity And Fluid Geochemistry At Lassen Volcanic National Park, California- Evidence For Two

150

Southwestern Regional Partnership For Carbon Sequestration (Phase 2) Pump Canyon CO2- ECBM/Sequestration Demonstration, San Juan Basin, New Mexico  

SciTech Connect

Within the Southwest Regional Partnership on Carbon Sequestration (SWP), three demonstrations of geologic CO{sub 2} sequestration are being performed -- one in an oilfield (the SACROC Unit in the Permian basin of west Texas), one in a deep, unmineable coalbed (the Pump Canyon site in the San Juan basin of northern New Mexico), and one in a deep, saline reservoir (underlying the Aneth oilfield in the Paradox basin of southeast Utah). The Pump Canyon CO{sub 2}-enhanced coalbed methane (CO{sub 2}/ECBM) sequestration demonstration project plans to demonstrate the effectiveness of CO{sub 2} sequestration in deep, unmineable coal seams via a small-scale geologic sequestration project. The site is located in San Juan County, northern New Mexico, just within the limits of the high-permeability fairway of prolific coalbed methane production. The study area for the SWP project consists of 31 coalbed methane production wells located in a nine section area. CO{sub 2} was injected continuously for a year and different monitoring, verification and accounting (MVA) techniques were implemented to track the CO{sub 2} movement inside and outside the reservoir. Some of the MVA methods include continuous measurement of injection volumes, pressures and temperatures within the injection well, coalbed methane production rates, pressures and gas compositions collected at the offset production wells, and tracers in the injected CO{sub 2}. In addition, time-lapse vertical seismic profiling (VSP), surface tiltmeter arrays, a series of shallow monitoring wells with a regular fluid sampling program, surface measurements of soil composition, CO{sub 2} fluxes, and tracers were used to help in tracking the injected CO{sub 2}. Finally, a detailed reservoir model was constructed to help reproduce and understand the behavior of the reservoir under production and injection operation. This report summarizes the different phases of the project, from permitting through site closure, and gives the results of the different MVA techniques.

Advanced Resources International

2010-01-31T23:59:59.000Z

151

A geologic assessment of natural gas from tight gas sandstones in the San Juan Basin. Final report, June 1989--June 1991  

Science Conference Proceedings (OSTI)

The authors conducted a detailed geologic appraisal, estimated gas in place and recoverable volumes, and evaluated the impact of technology improvements on potential Cretaceous (Pictured Cliffs, Chacra, Cliff House, Point Lookout and Dakota intervals) tight gas reserves of the San Juan Basin. This report summarizes the results of a disaggregated appraisal of the undeveloped San Juan tight gas resource in the context of current and near-term technology, project economics and market potential. A geologic data base was constructed based on location reservoir properties, and typical well recoveries were modeled on a township-specific basis. Project costing and cash flow economics were analyzed to derive potential reserves for various technology specifications and wellhead prices. These data provide a foundation for operators and pipelines to more closely examine these tight formations for development in the near future. Gas in place for the undeveloped tight portion of the five intervals studied was estimated at 17.2 Tcf, with the Dakota Formation accounting for two thirds of this volume. Using current technology, potential ultimate recovery for all intervals is 7.2 Tcf. Potential reserve additions are 1.1 Tcf at $1.50/Mcf, 2.3 Tcf at $2.00/Mcf, and 5.9 Tcf at $5.00/Mcf. The availability of the Nonconventional Fuels Tax Credit for eligible wells drilled in 1991 and 1992 could improve project economics by an after tax equivalent of $0.66/Mcf at the wellhead. Over 300 geophysical logs were evaluated to construct depth, overburden and isopach maps and a location-specific resource database. The database was analyzed using TGAS-PC{reg_sign}, an integrated engineering and economics model for tight sands that has the capability to do rapid sensitivity analysis of geological, technology and economic assumptions.

Haas, M.R.; Lombardi, T.E.

1983-01-01T23:59:59.000Z

152

COLLOQUIUM: Volcanism, Impacts and Mass Extinctions: Causes and Effects |  

NLE Websites -- All DOE Office Websites (Extended Search)

February 13, 2013, 4:15pm to 5:30pm February 13, 2013, 4:15pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: Volcanism, Impacts and Mass Extinctions: Causes and Effects Professor Gerta Keller Princeton University Presentation: WC13FEB2014_GKeller.pptx The nature and causes of mass extinctions in the geological past have remained topics of intense scientific debate for the past three decades. Central to this debate is the question of whether one, or several large bolide impacts, the eruption of large igneous provinces (LIP) or a combination of the two were the primary mechanisms driving the environmental changes that are universally regarded as the proximate causes for four of the five major Phanerozoic extinction events. Recent years have seen a revolution in our understanding of interplanetary

153

Intracaldera volcanism and sedimentation-Creede caldera, Colorado  

DOE Green Energy (OSTI)

Within the Creede caldera, Colorado, many of the answers to its postcaldera volcanic and sedimentary history lie within the sequence of tuffaceous clastic sedimentary rocks and tuffs known as the Creede Formation. The Creede Formation and its interbedded ash deposits were sampled by research coreholes Creede 1 and 2, drilled during the fall of 1991. In an earlier study of the Creede Formation, based on surface outcrops and shallow mining company coreholes, Heiken and Krier (1987) concluded that the process of caldera structural resurgence was rapid and that a caldera lake had developed in an annulus (``moat``) located between the resurgent dome and caldera wall. So far we have a picture of intracaldera activity consisting of intermittent hydrovoleanic eruptions within a caldera lake for the lower third of the Creede Formation, and both magmatic and hydrovolcanic ash eruptions throughout the top two-thirds. Most of the ash deposits interbedded with the moat sedimentary rocks are extremely fine-grained. Ash fallout into the moat lake and unconsolidated ash eroded from caldera walls and the slopes of the resurgent dome were deposited over stream delta distributaries within relatively shallow water in the northwestern moat, and in deeper waters of the northern moat, where the caldera was intersected by a graben. Interbedded with ash beds and tuffaceous siltstones are coarse-grained turbidites from adjacent steep slopes and travertine from fissure ridges adjacent to the moat. Sedimentation rates and provenance for clastic sediments are linked to the frequent volcanic activity in and near the caldera; nearly all of the Creede Formation sedimentary rocks are tuffaceous.

Heiken, G.; Krier, D.; Snow, M.G. [Los Alamos National Lab., NM (United States); McCormick, T. [Colorado Univ., Boulder, CO (United States). Dept. of Geological Sciences

1994-12-31T23:59:59.000Z

154

SYSTHESIS OF VOLCANISM STUDIES FOR THE YUCCA MOUNTAIN SITE CHARACTERIZATION PROJECT  

SciTech Connect

This report synthesizes the results of volcanism studies conducted by scientists at the Los Alamos National Laboratory and collaborating institutions on behalf of the Department of Energy's Yucca Mountain Project. Chapter 1 introduces the volcanism issue for the Yucca Mountain site and provides the reader with an overview of the organization, content, and significant conclusions of this report. The hazard of future basaltic volcanism is the primary topic of concern including both events that intersect a potential repository and events that occur near or within the waste isolation system of a repository. Future volcanic events cannot be predicted with certainty but instead are estimated using formal methods of probabilistic volcanic hazard assessment (PVHA). Chapter 2 describes the volcanic history of the Yucca Mountain region (YMR) and emphasizes the Pliocene and Quaternary volcanic record, the interval of primary concern for volcanic risk assessment. The distribution, eruptive history, and geochronology of Plio-Quaternary basalt centers are described by individual center emphasizing the younger postcaldera basalt (<5 Ma). The Lathrop Wells volcanic center is described in detail because it is the youngest basalt center in the YMR. The age of the Lathrop Wells center is now confidently determined to be about 75 thousand years old. Chapter 3 describes the tectonic setting of the YMR and presents and assesses the significance of multiple alternative tectonic models. The distribution of Pliocene and Quaternary basaltic volcanic centers is evaluated with respect to tectonic models for detachment, caldera, regional and local rifting, and the Walker Lane structural zone. Geophysical data are described for the YMR and are used as an aid to understand the distribution of past basaltic volcanic centers and possible future magmatic processes. Chapter 4 discusses the petrologic and geochemical features of basaltic volcanism in the YMR, the southern Great Basin and the Basin and Range province. Geochemical and isotopic data are presented for post-Miocene basalts of the Yucca Mountain region. Alternative petrogenetic models are assessed for the formation of the Lathrop Wells volcanic center. Based on geochemical data, basaltic ash in fault trenches near Yucca Mountain is shown to have originated from the Lathrop Wells center. Chapter 5 synthesizes eruptive and subsurface effects of basaltic volcanism on a potential repository and summarizes current concepts of the segregation, ascent, and eruption of basalt magma. Chapter 6 synthesizes current knowledge of the probability of disruption of a potential repository at Yucca Mountain. In 1996, an Expert Elicitation panel was convened by DOE that independently conducted PVHA for the Yucca Mountain site. Chapter 6 does not attempt to revise this PVHA; instead, it further examines the sensitivity of variables in PVHA. The approaches and results of PVHA by the expert judgment panel are evaluated and incorporated throughout this chapter. The disruption ratio (E2) is completely re-evaluated using simulation modeling that describes volcanic events based on the geometry of basaltic feeder dikes. New estimates of probability bounds are developed. These comparisons show that it is physically implausible for the probability of magmatic disruption of the Yucca Mountain site to be greater than 10{sup -7} events per year. Bounding probability estimates are used to assess possible implications of not drilling aeromagnetic anomalies in the Arnargosa Valley and Crater Flat. The results of simulation modeling are used to assess the sensitivity of the disruption probability for the location of northeast boundaries of volcanic zones near the Yucca Mountain site. A new section on modeling of radiological releases associated with surface and subsurface magmatic activity has been added to chapter 6. The modeling results are consistent with past total system performance assessments that show future volcanic and magmatic events are not significant components of repository performance and volcanism is not a prio

FV PERRY, GA CROWE, GA VALENTINE AND LM BOWKER

1997-09-23T23:59:59.000Z

155

Preliminary volcanic hazards evaluation for Los Alamos National Laboratory Facilities and Operations : current state of knowledge and proposed path forward  

SciTech Connect

The integration of available information on the volcanic history of the region surrounding Los Alamos National Laboratory indicates that the Laboratory is at risk from volcanic hazards. Volcanism in the vicinity of the Laboratory is unlikely within the lifetime of the facility (ca. 50100 years) but cannot be ruled out. This evaluation provides a preliminary estimate of recurrence rates for volcanic activity. If further assessment of the hazard is deemed beneficial to reduce risk uncertainty, the next step would be to convene a formal probabilistic volcanic hazards assessment.

Keating, Gordon N.; Schultz-Fellenz, Emily S.; Miller, Elizabeth D.

2010-09-01T23:59:59.000Z

156

SYSTHESIS OF VOLCANISM STUDIES FOR THE YUCCA MOUNTAIN SITE CHARACTERIZATION PROJECT  

Science Conference Proceedings (OSTI)

This report synthesizes the results of volcanism studies conducted by scientists at the Los Alamos National Laboratory and collaborating institutions on behalf of the Department of Energy's Yucca Mountain Project. Chapter 1 introduces the volcanism issue for the Yucca Mountain site and provides the reader with an overview of the organization, content, and significant conclusions of this report. The hazard of future basaltic volcanism is the primary topic of concern including both events that intersect a potential repository and events that occur near or within the waste isolation system of a repository. Future volcanic events cannot be predicted with certainty but instead are estimated using formal methods of probabilistic volcanic hazard assessment (PVHA). Chapter 2 describes the volcanic history of the Yucca Mountain region (YMR) and emphasizes the Pliocene and Quaternary volcanic record, the interval of primary concern for volcanic risk assessment. The distribution, eruptive history, and geochronology of Plio-Quaternary basalt centers are described by individual center emphasizing the younger postcaldera basalt (basalt center in the YMR. The age of the Lathrop Wells center is now confidently determined to be about 75 thousand years old. Chapter 3 describes the tectonic setting of the YMR and presents and assesses the significance of multiple alternative tectonic models. The distribution of Pliocene and Quaternary basaltic volcanic centers is evaluated with respect to tectonic models for detachment, caldera, regional and local rifting, and the Walker Lane structural zone. Geophysical data are described for the YMR and are used as an aid to understand the distribution of past basaltic volcanic centers and possible future magmatic processes. Chapter 4 discusses the petrologic and geochemical features of basaltic volcanism in the YMR, the southern Great Basin and the Basin and Range province. Geochemical and isotopic data are presented for post-Miocene basalts of the Yucca Mountain region. Alternative petrogenetic models are assessed for the formation of the Lathrop Wells volcanic center. Based on geochemical data, basaltic ash in fault trenches near Yucca Mountain is shown to have originated from the Lathrop Wells center. Chapter 5 synthesizes eruptive and subsurface effects of basaltic volcanism on a potential repository and summarizes current concepts of the segregation, ascent, and eruption of basalt magma. Chapter 6 synthesizes current knowledge of the probability of disruption of a potential repository at Yucca Mountain. In 1996, an Expert Elicitation panel was convened by DOE that independently conducted PVHA for the Yucca Mountain site. Chapter 6 does not attempt to revise this PVHA; instead, it further examines the sensitivity of variables in PVHA. The approaches and results of PVHA by the expert judgment panel are evaluated and incorporated throughout this chapter. The disruption ratio (E2) is completely re-evaluated using simulation modeling that describes volcanic events based on the geometry of basaltic feeder dikes. New estimates of probability bounds are developed. These comparisons show that it is physically implausible for the probability of magmatic disruption of the Yucca Mountain site to be greater than 10{sup -7} events per year. Bounding probability estimates are used to assess possible implications of not drilling aeromagnetic anomalies in the Arnargosa Valley and Crater Flat. The results of simulation modeling are used to assess the sensitivity of the disruption probability for the location of northeast boundaries of volcanic zones near the Yucca Mountain site. A new section on modeling of radiological releases associated with surface and subsurface magmatic activity has been added to chapter 6. The modeling results are consistent with past total system performance assessments that show future volcanic and magmatic events are not significant components of repository performance and volcanism is not a prio

FV PERRY, GA CROWE, GA VALENTINE AND LM BOWKER

1997-09-23T23:59:59.000Z

157

Isotopic Analysis At Lassen Volcanic National Park Area (Janik & Mclaren,  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Isotopic Analysis At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Exploration Activity Details Location Lassen Volcanic National Park Area Exploration Technique Isotopic Analysis- Fluid Activity Date Usefulness useful DOE-funding Unknown Notes Both fluid and gas isotopic analysis. References Cathy J. Janik, Marcia K. McLaren (2010) Seismicity And Fluid Geochemistry At Lassen Volcanic National Park, California- Evidence For Two

158

Static Temperature Survey At Lassen Volcanic National Park Area (Janik &  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Static Temperature Survey At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Static Temperature Survey At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Exploration Activity Details Location Lassen Volcanic National Park Area Exploration Technique Static Temperature Survey Activity Date Usefulness useful DOE-funding Unknown Notes In 1978, the Walker "O" No. 1 well at Terminal Geyser was drilled to 1222 m, all in volcanic rocks (Beall, 1981). Temperature-log profiles made 10

159

Alteration Patterns In Volcanic Rocks Within An East-West Traverse Through  

Open Energy Info (EERE)

Patterns In Volcanic Rocks Within An East-West Traverse Through Patterns In Volcanic Rocks Within An East-West Traverse Through Central Nicaragua Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Alteration Patterns In Volcanic Rocks Within An East-West Traverse Through Central Nicaragua Details Activities (0) Areas (0) Regions (0) Abstract: The volcanic rocks investigated in a cross-section between the Pacific and Atlantic coasts of Nicaragua - with the exception of Recent and some Pleistocene lavas - are incipiently to strongly altered. Alteration patterns on different scales can be discerned in the Tertiary sequences: (i) a regional burial diagenesis or very low-grade burial metamorphism at the low-temperature end of the zeolite facies (mordenite subfacies) with an inferred thermal gradient of < 50°C/km, grading into (ii) a geothermal

160

Climate Studies with a Multilayer Energy Balance Model. Part III: Climatic Impact of Stratospheric Volcanic Aerosols  

Science Conference Proceedings (OSTI)

The radiative and climatic effects of stratospheric volcanic aerosols are studied with a multilayer energy balance model. The results show that the latitudinal distribution of aerosols has a significant effect on climate sensitivity. When ...

Ming-Dah Chou; Li Peng; Albert Arking

1984-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

On Numerical Simulation of the Global Distribution of Sulfate Aerosol Produced by a Large Volcanic Eruption  

Science Conference Proceedings (OSTI)

Volcanic eruptions play an important role in the global sulfur cycle of the earth's atmosphere and have a relatively big influence on potential fluctuations of the atmospheric variables on both subclimatic and climatic scales. The objective of ...

J. A. Pudykiewicz; A. P. Dastoor

1995-03-01T23:59:59.000Z

162

Inside Volcanic Clouds: Remote Sensing of Ash Plumes Using Microwave Weather Radars  

Science Conference Proceedings (OSTI)

Microphysical and dynamical features of volcanic tephra due to Plinian and sub-Plinian eruptions can be quantitatively monitored by using ground-based microwave weather radars. The methodological rationale and unique potential of this remote-sensing ...

Frank S. Marzano; Errico Picciotti; Mario Montopoli; Gianfranco Vulpiani

2013-10-01T23:59:59.000Z

163

Effects of the Mount St. Helens Volcanic Cloud on Turbidity at Ann Arbor, Michigan  

Science Conference Proceedings (OSTI)

Measurements of turbidity were made at the University of Michigan irradiance and meteorological measurement facility just prior to, during and after the passage of the volcanic cloud from the 18 May 1980 eruption of Mount St. Helens. They were ...

Edward Ryznar; Michael R. Weber; Thomas S. Hallaron

1981-11-01T23:59:59.000Z

164

Helium and lead isotope geochemistry of oceanic volcanic rocks from the East Pacific and South Atlantic  

E-Print Network (OSTI)

The isotopic evolution of helium and lead in the Earth is coupled by virtue of their common radioactive parents uranium and thorium. The isotopic signatures in oceanic volcanic rocks provide constraints on the temporal ...

Graham, David W. (David William)

1987-01-01T23:59:59.000Z

165

Direct numerical simulations of multiphase flow with applications to basaltic volcanism and planetary evolution  

E-Print Network (OSTI)

Multiphase flows are an essential component of natural systems: They affect the explosivity of volcanic eruptions, shape the landscape of terrestrial planets, and govern subsurface flow in hydrocarbon reservoirs. Advancing ...

Suckale, Jenny

2011-01-01T23:59:59.000Z

166

Volcanic and Solar Forcing of Climate Change during the Preindustrial Era  

Science Conference Proceedings (OSTI)

The climate response to variability in volcanic aerosols and solar irradiance, the primary forcings during the preindustrial era, is examined in a stratosphere-resolving general circulation model. The best agreement with historical and proxy data ...

Drew T. Shindell; Gavin A. Schmidt; Ron L. Miller; Michael E. Mann

2003-12-01T23:59:59.000Z

167

Effect of Volcanic Eruptions on the Vertical Temperature Profile in Radiosonde Data and Climate Models  

Science Conference Proceedings (OSTI)

Both observed and modeled upper-air temperature profiles show the tropospheric cooling and tropical stratospheric warming effects from the three major volcanic eruptions since 1960. Detailed comparisons of vertical profiles of Radiosonde ...

Melissa Free; John Lanzante

2009-06-01T23:59:59.000Z

168

Effects of the El Chichon Volcanic Cloud on Direct and Diffuse Solar Irradiances  

Science Conference Proceedings (OSTI)

Direct normal and diffuse solar irradiances and 500 nm aerosol optical depths measured at the University of Michigan departed far from normal on 26 October 1982, when it is concluded that the main stratospheric cloud from the El Chichon volcanic ...

C. Bruce Baker; William R. Kuhn; Edward Ryznar

1984-03-01T23:59:59.000Z

169

Impact of Strong Tropical Volcanic Eruptions on ENSO Simulated in a Coupled GCM  

Science Conference Proceedings (OSTI)

The impact of strong tropical volcanic eruptions (SVEs) on the El NioSouthern Oscillation (ENSO) and its phase dependency is investigated using a coupled general circulation model (CGCM). This paper investigates the response of ENSO to an ...

Masamichi Ohba; Hideo Shiogama; Tokuta Yokohata; Masahiro Watanabe

2013-07-01T23:59:59.000Z

170

Satellite Measurement of Sea Surface Temperature in the Presence of Volcanic Aerosols  

Science Conference Proceedings (OSTI)

Simulation studies have shown that volcanic aerosols in the stratosphere, such as those produced by the eruption of El Chichn, significantly affect satellite measurements in the three AVHRR thermal window channels centered at 3.7, 11 and 12 ?m. ...

Charles Walton

1985-06-01T23:59:59.000Z

171

Polarization Lidar and Synoptic Analyses of an Unusual Volcanic Aerosol Cloud  

Science Conference Proceedings (OSTI)

Over an unusually brief three-day period in early August 1989, spectacular twilight effects indicative of a stratospheric volcanic cloud were seen at Salt Lake City, Utah. Concurrent polarization lidar observations detected an aerosol layer at ...

Kenneth Sassen; John D. Horel

1990-12-01T23:59:59.000Z

172

Response of Summer Precipitation over Eastern China to Large Volcanic Eruptions  

Science Conference Proceedings (OSTI)

Studies of the effects of large volcanic eruptions on regional climate so far have focused mostly on temperature responses. Previous studies using proxy data suggested that coherent droughts over eastern China are associated with explosive low-...

Youbing Peng; Caiming Shen; Wei-Chyung Wang; Ying Xu

2010-02-01T23:59:59.000Z

173

Global Relationships among the Earth's Radiation Budget, Cloudiness, Volcanic Aerosols, and Surface Temperature  

Science Conference Proceedings (OSTI)

The analyses of Cess are extended to consider global relationships among the earth's radiation budget (including solar insulation and changes in optically active gass), cloudiness, solar constant, volcanic aerosols, and surface temperature. ...

Philip E. Ardanuy; H. Lee Kyle; Douglas Hoyt

1992-10-01T23:59:59.000Z

174

Some Aspects Of Exploration In Non-Volcanic Areas | Open Energy Information  

Open Energy Info (EERE)

Some Aspects Of Exploration In Non-Volcanic Areas Some Aspects Of Exploration In Non-Volcanic Areas Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Some Aspects Of Exploration In Non-Volcanic Areas Details Activities (5) Areas (1) Regions (0) Abstract: Geothermal exploration in non-volcanic areas must above all rely on geophysical techniques to identify the reservoir, as it is unable to resort to volcanological methodologies. A brief description is therefore given of the contribution that can be obtained from certain types of geophysical prospectings. Author(s): Raffaello Nannini Published: Geothermics, 1986 Document Number: Unavailable DOI: Unavailable Source: View Original Journal Article Aerial Photography (Nannini, 1986) Aeromagnetic Survey (Nannini, 1986) Ground Gravity Survey (Nannini, 1986)

175

Surface Gas Sampling At Lassen Volcanic National Park Area (Janik &  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Surface Gas Sampling At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) (Redirected from Water-Gas Samples At Lassen Volcanic National Park Area (Janik & Mclaren, 2010)) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Surface Gas Sampling At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Exploration Activity Details Location Lassen Volcanic National Park Area Exploration Technique Surface Gas Sampling Activity Date Usefulness not indicated DOE-funding Unknown References Cathy J. Janik, Marcia K. McLaren (2010) Seismicity And Fluid

176

Geologic evolution of the Jemez Mountains and their potential for future volcanic activity  

Science Conference Proceedings (OSTI)

Geophysical and geochemical data and the geologic history of the Rio Grande rift and the vicinity of the Jemez Mountains are summarized to determine the probability of future volcanic activity in the Los Alamos, New Mexico area. The apparent cyclic nature of volcanism in the Jemez Mountains may be related to intermittent thermal inputs into the volcanic system beneath the region. The Jemez lineament, an alignment of late Cenozoic volcanic centers that crosses the rift near Los Alamos, has played an important role in the volcanic evolution of the Jemez Mountains. Geophysical data suggest that there is no active shallow magma body beneath the Valles caldera, though magma probably exists at about 15 km beneath this portion of the rift. The rate of volcanism in the Jemez Mountains during the last 10 million years has been 5 x 10/sup -9//km/sup 2//y. Lava or ash flows overriding Laboratory radioactive waste disposal sites would have little potential to release radionuclides to the environment. The probability of a new volcano intruding close enough to a radioactive waste disposal site to effect radionuclide release is 2 x 10/sup -7//y.

Burton, B.W.

1982-01-01T23:59:59.000Z

177

Natural Tracers and Multi-Scale Assessment of Caprock Sealing Behavior: A Case Study of the Kirtland Formation, San Juan Basin  

Science Conference Proceedings (OSTI)

The assessment of caprocks for geologic CO{sub 2} storage is a multi-scale endeavor. Investigation of a regional caprock - the Kirtland Formation, San Juan Basin, USA - at the pore-network scale indicates high capillary sealing capacity and low permeabilities. Core and wellscale data, however, indicate a potential seal bypass system as evidenced by multiple mineralized fractures and methane gas saturations within the caprock. Our interpretation of {sup 4}He concentrations, measured at the top and bottom of the caprock, suggests low fluid fluxes through the caprock: (1) Of the total {sup 4}He produced in situ (i.e., at the locations of sampling) by uranium and thorium decay since deposition of the Kirtland Formation, a large portion still resides in the pore fluids. (2) Simple advection-only and advection-diffusion models, using the measured {sup 4}He concentrations, indicate low permeability ({approx}10-20 m{sup 2} or lower) for the thickness of the Kirtland Formation. These findings, however, do not guarantee the lack of a large-scale bypass system. The measured data, located near the boundary conditions of the models (i.e., the overlying and underlying aquifers), limit our testing of conceptual models and the sensitivity of model parameterization. Thus, we suggest approaches for future studies to better assess the presence or lack of a seal bypass system at this particular site and for other sites in general.

Jason Heath; Brian McPherson; Thomas Dewers

2011-03-15T23:59:59.000Z

178

Uranium mineralization in fluorine-enriched volcanic rocks  

Science Conference Proceedings (OSTI)

Several uranium and other lithophile element deposits are located within or adjacent to small middle to late Cenozoic, fluorine-rich rhyolitic dome complexes. Examples studied include Spor Mountain, Utah (Be-U-F), the Honeycomb Hills, Utah (Be-U), the Wah Wah Mountains, Utah (U-F), and the Black Range-Sierra Cuchillo, New Mexico (Sn-Be-W-F). The formation of these and similar deposits begins with the emplacement of a rhyolitic magma, enriched in lithophile metals and complexing fluorine, that rises to a shallow crustal level, where its roof zone may become further enriched in volatiles and the ore elements. During initial explosive volcanic activity, aprons of lithicrich tuffs are erupted around the vents. These early pyroclastic deposits commonly host the mineralization, due to their initial enrichment in the lithophile elements, their permeability, and the reactivity of their foreign lithic inclusions (particularly carbonate rocks). The pyroclastics are capped and preserved by thick topaz rhyolite domes and flows that can serve as a source of heat and of additional quantities of ore elements. Devitrification, vapor-phase crystallization, or fumarolic alteration may free the ore elements from the glassy matrix and place them in a form readily leached by percolating meteoric waters. Heat from the rhyolitic sheets drives such waters through the system, generally into and up the vents and out through the early tuffs. Secondary alteration zones (K-feldspar, sericite, silica, clays, fluorite, carbonate, and zeolites) and economic mineral concentrations may form in response to this low temperature (less than 200 C) circulation. After cooling, meteoric water continues to migrate through the system, modifying the distribution and concentration of the ore elements (especially uranium).

Burt, D.M.; Sheridan, M.F.; Bikun, J.; Christiansen, E.; Correa, B.; Murphy, B.; Self, S.

1980-09-01T23:59:59.000Z

179

Retrieval of volcanic ash and ice cloud physical properties together with gas concentration from IASI measurements using the AVL model  

Science Conference Proceedings (OSTI)

Observation and tracking of volcanic aerosols are important for preventing possible aviation hazards and determining the influence of aerosols on climate. The useful information primary includes the concentration

2013-01-01T23:59:59.000Z

180

A Preparation Zone For Volcanic Explosions Beneath Naka-Dake...  

Open Energy Info (EERE)

mud eruptions, and red hot glows on the crater wall. Temporal variations in the geomagnetic field observed around the craters of Naka-dake also indicate that thermal...

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Helium Isotopes In Geothermal And Volcanic Gases Of The Western United  

Open Energy Info (EERE)

Helium Isotopes In Geothermal And Volcanic Gases Of The Western United Helium Isotopes In Geothermal And Volcanic Gases Of The Western United States, I, Regional Variability And Magmatic Origin Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Helium Isotopes In Geothermal And Volcanic Gases Of The Western United States, I, Regional Variability And Magmatic Origin Details Activities (1) Areas (1) Regions (0) Abstract: Helium isotope ratios in gases of thirty hot springs and geothermal wells and of five natural gas wells in the western United States show no relationship to regional conductive heat flow, but do show a correlation with magma-based thermal activity and reservoir fluid temperature (or total convective heat discharge). Gases from high-T (> 200°C) reservoirs have 3He/4He > 2 _ the atmospheric value, with high He

182

Volcanic forcing improves Atmosphere-Ocean Coupled General Circulation Model scaling performance  

E-Print Network (OSTI)

Recent Atmosphere-Ocean Coupled General Circulation Model (AOGCM) simulations of the twentieth century climate, which account for anthropogenic and natural forcings, make it possible to study the origin of long-term temperature correlations found in the observed records. We study ensemble experiments performed with the NCAR PCM for 10 different historical scenarios, including no forcings, greenhouse gas, sulfate aerosol, ozone, solar, volcanic forcing and various combinations, such as it natural, anthropogenic and all forcings. We compare the scaling exponents characterizing the long-term correlations of the observed and simulated model data for 16 representative land stations and 16 sites in the Atlantic Ocean for these scenarios. We find that inclusion of volcanic forcing in the AOGCM considerably improves the PCM scaling behavior. The scenarios containing volcanic forcing are able to reproduce quite well the observed scaling exponents for the land with exponents around 0.65 independent of the station dista...

Vyushin, D; Havlin, S; Bunde, A; Brenner, S; Vyushin, Dmitry; Zhidkov, Igor; Havlin, Shlomo; Bunde, Armin; Brenner, Stephen

2004-01-01T23:59:59.000Z

183

Petrography of late cenozoic sediments, Raft River geothermal field, Idaho  

Open Energy Info (EERE)

of late cenozoic sediments, Raft River geothermal field, Idaho of late cenozoic sediments, Raft River geothermal field, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Petrography of late cenozoic sediments, Raft River geothermal field, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: GEOTHERMAL ENERGY; RAFT RIVER VALLEY; GEOTHERMAL FIELDS; PETROGRAPHY; BIOTITE; CALCITE; CLAYS; LIMESTONE; PYRITE; SANDSTONES; SEDIMENTS; SHALES; VOLCANIC ROCKS; ZEOLITES; ALKALINE EARTH METAL COMPOUNDS; CALCIUM CARBONATES; CALCIUM COMPOUNDS; CARBON COMPOUNDS; CARBONATE ROCKS; CARBONATES; CHALCOGENIDES; IDAHO; IGNEOUS ROCKS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; IRON COMPOUNDS; IRON SULFIDES; MICA; MINERALS; NORTH AMERICA; ORES; OXYGEN COMPOUNDS; PACIFIC NORTHWEST REGION; PYRITES; ROCKS; SEDIMENTARY ROCKS; SULFIDES; SULFUR COMPOUNDS;

184

Economic and Conservation Evaluation of Capital Renovation Projects: Hidalgo County Irrigation District No. 2 (San Juan) 48" Pipeline Replacing Wisconsin Canal Preliminary  

E-Print Network (OSTI)

Initial construction costs and net annual changes in operating and maintenance expenses are identified for a single-component capital renovation project proposed by Hidalgo County Irrigation District No. 2, (a.k.a. San Juan) to the North American Development Bank (NADBank) and Bureau of Reclamation. The proposed project involves constructing a 48" pipeline to replace the Wisconsin Canal. Both nominal and real estimates of water and energy savings and expected economic and financial costs of those savings are identified throughout the anticipated useful life for the proposed project. Sensitivity results for both the cost of water savings and cost of energy savings are presented for several important parameters. Annual water and energy savings forthcoming from the total project are estimated, using amortization procedures, to be 977 ac-ft of water per year and 372,892,700 BTUs (109,289 kwh) of energy per year. The calculated economic and financial cost of water savings is estimated to be $70.97 per ac-ft. The calculated economic and financial cost of energy savings is estimated at $0.0002124 per BTU ($0.725 per kwh). In addition, expected real (vs nominal) values are indicated for the Bureau of Reclamations three principal evaluation measures specified in the United States Public Law 106-576 legislation. The initial construction cost per ac-ft of water savings measure is $75.29 per ac-ft of water savings. The initial construction cost per BTU (kwh) of energy savings measure is $0.0001973 per BTU ($0.673 per kwh). The ratio of initial construction costs per dollar of total annual economic savings is estimated to be -3.12.

Rister, M. Edward; Lacewell, Ronald D.; Sturdivant, Allen W.; Robinson, John R.C.; Popp, Michael C.

2003-05-01T23:59:59.000Z

185

Economic and Conservation Evaluation of Capital Renovation Projects: Hidalgo County Irrigation District No. 2 (San Juan) - 48" Pipeline Replacing Wisconsin Canal - Final  

E-Print Network (OSTI)

Initial construction costs and net annual changes in operating and maintenance expenses are identified for a single-component capital renovation project proposed by Hidalgo County Irrigation District No. 2, (a.k.a. San Juan) to the North American Development Bank (NADBank) and Bureau of Reclamation. The proposed project involves constructing a 48" pipeline to replace the Wisconsin Canal. Both nominal and real estimates of water and energy savings and expected economic and financial costs of those savings are identified throughout the anticipated useful life for the proposed project. Sensitivity results for both the cost of water savings and cost of energy savings are presented for several important parameters. Annual water and energy savings forthcoming from the total project are estimated, using amortization procedures, to be 977 ac-ft of water per year and 372,892,700 BTUs (109,289 kwh) of energy per year. The calculated economic and financial cost of water savings is estimated to be $70.97 per ac-ft. The calculated economic and financial cost of energy savings is estimated at $0.0002124 per BTU ($0.725 per kwh). In addition, expected real (vs nominal) values are indicated for the Bureau of Reclamations three principal evaluation measures specified in the United States Public Law 106-576 legislation. The initial construction cost per ac-ft of water savings measure is $75.29 per ac-ft of water savings. The initial construction cost per BTU (kwh) of energy savings measure is $0.0001973 per BTU ($0.673 per kwh). The ratio of initial construction costs per dollar of total annual economic savings is estimated to be -3.12.

Rister, Edward; Lacewell, Ronald; Sturdivant, Allen; Robinson, John; Popp, Michael

2003-07-01T23:59:59.000Z

186

Tectonic Setting and Characteristics of Natural Fractures in Mesaverde and Dakota Reservoirs of the San Juan Basin, New Mexico and Colorado  

SciTech Connect

A set of vertical extension fractures, striking N-S to NNE-SSW but with local variations, is present in both the outcrop and subsurface in both Mesaverde and Dakota sandstones. Additional sets of conjugate shear fractures have been recognized in outcrops of Dakota strata and may be present in the subsurface. However, the deformation bands prevalent locally in outcrops in parts of the basin as yet have no documented subsurface equivalent. The immature Mesaverde sandstones typically contain relatively long, irregular extension fractures, whereas the quartzitic Dakota sandstones contain short, sub-parallel, closely spaced, extension fractures, and locally conjugate shear planes as well. Outcrops typically display secondary cross fractures which are rare in the subsurface, although oblique fractures associated with local structures such as the Hogback monocline may be present in similar subsurface structures. Spacings of the bed-normal extension fractures are approximately equal to or less than the thicknesses of the beds in which they formed, in both outcrop and subsurface. Fracture intensities increase in association with faults, where there is a gradation from intense fracturing into fault breccia. Bioturbation and minimal cementation locally inhibited fracture development in both formations, and the vertical limits of fracture growth are typically at bedding/lithology contrasts. Fracture mineralizations have been largely dissolved or replaced in outcrops, but local examples of preserved mineralization show that the quartz and calcite common to subsurface fractures were originally present in outcrop fractures. North-south trending compressive stresses created by southward indentation of the San Juan dome area (where Precambrian rocks are exposed at an elevation of 14,000 ft) and northward indentation of the Zuni uplift, controlled Laramide-age fracturing. Contemporaneous right-lateral transpressive wrench motion due to northeastward translation of the basin was both concentrated at the basin margins (Nacimiento uplift and Hogback monocline on east and west edges respectively) and distributed across the strata depth.

LORENZ, JOHN C.; COOPER, SCOTT P.

2001-01-01T23:59:59.000Z

187

Solar and volcanic fingerprints in tree-ring chronologies over the past 2000 years Petra Breitenmoser a,b,  

E-Print Network (OSTI)

Solar and volcanic fingerprints in tree-ring chronologies over the past 2000 years Petra Climate variability Tree-ring proxies DeVries solar cycle Volcanic activity Past two millennia The Sun cli- mate forcings to continuing global warming. To properly address long-term fingerprints of solar

Wehrli, Bernhard

188

"1. Four Corners","Coal","Arizona Public Service Co",2100 "2. San Juan","Coal","Public Service Co of NM",1643  

U.S. Energy Information Administration (EIA) Indexed Site

Mexico" Mexico" "1. Four Corners","Coal","Arizona Public Service Co",2100 "2. San Juan","Coal","Public Service Co of NM",1643 "3. Luna Energy Facility","Gas","Public Service Co of NM",559 "4. Hobbs Generating Station","Gas","CAMS NM LLC",526 "5. Cunningham","Gas","Southwestern Public Service Co",480 "6. Escalante","Coal","Tri-State G & T Assn, Inc",247 "7. Rio Grande","Gas","El Paso Electric Co",236 "8. Afton Generating Station","Gas","Public Service Co of NM",236 "9. New Mexico Wind Energy Center","Other Renewables","FPL Energy New Mexico Wind LLC",204

189

Toward assessing the geothermal potential of the Jemez Mountains volcanic complex: a telluric-magnetotelluric survey  

DOE Green Energy (OSTI)

Telluric-magnetotelluric studies were performed in the Jemez Mountains of north-central New Mexico to characterize the total geothermal system of the Valles Caldera and to be integrated with an east-west regional survey supported by the United States Geological Survey. The data from the regional survey indicate that electrically the San Juan Basin to the west of the Jemez Mountains is rather homogeneous in contrast to the eastern side near Las Vegas where the presence of a broad heterogeneous structure is clearly sensed. The data from the Jemez Mountain area are strikingly similar to other Rio Grande rift data and suggest a conducting layer at a depth of approximately 15 km. The telluric data indicate that the hydrothermal system in the area is of a localized nature.

Hermance, J.F.

1979-02-01T23:59:59.000Z

190

Application of magnetic amplitude inversion in exploration for natural gas in volcanics Yaoguo Li, Center for Gravity, Electrical, and Magnetic Studies, Colorado School of Mines  

E-Print Network (OSTI)

Application of magnetic amplitude inversion in exploration for natural gas in volcanics Yaoguo Li basins and have strong remanent magnetization. The appli- cation arises in exploration of natural gas identify the volcanic units at large depths. INTRODUCTION Exploration for natural gas hosted in volcanics

191

GIS-based method for the environmental vulnerability assessment to volcanic ashfall at Etna Volcano  

Science Conference Proceedings (OSTI)

The response of environment to ashfall was evaluated aiming at defining the vulnerability in the areas surrounding Mt. Etna volcano, Sicily. The two utilized scenarios assume different thickness of ashfall, over distances comparable with those covered ... Keywords: Corine land cover, Environmental vulnerability, GIS, Volcanic risk

Silvia Rapicetta; Vittorio Zanon

2009-09-01T23:59:59.000Z

192

Influence of volcanic eruptions on the climate of the Asian monsoon region  

E-Print Network (OSTI)

Influence of volcanic eruptions on the climate of the Asian monsoon region K. J. Anchukaitis,1 B. M throughout much of monsoon Asia. Here, we use long and wellvalidated proxy reconstructions of Asian droughts on the climate of the Asian monsoon region, Geophys. Res. Lett., 37, L22703, doi:10.1029/ 2010GL044843. 1

Smith, Frederick

193

Chemical evolution of a high-level magma system: the Black Mountain volcanic center, southern Nevada  

DOE Green Energy (OSTI)

A comprehensive study of stratigraphically controlled samples of both lavas and ash-flow tuffs from the Black Mountain volcanic center enables us to evaluate magmatic processes. The results of this study are used to: (1) determine how this high-level magma system developed; (2) compare this system with other similar systems; and (3) correlate ash-flow sheets using their chemical characteristics.

Vogel, T.A.; Noble, D.C.; Younker, L.W.

1983-09-01T23:59:59.000Z

194

Anomalous subsidence on the rifted volcanic margin of Pakistan: No influence from Deccan plume  

E-Print Network (OSTI)

Anomalous subsidence on the rifted volcanic margin of Pakistan: No influence from Deccan plume, Clifton, Karachi 75600, Pakistan A B S T R A C TA R T I C L E I N F O Article history: Received 28 October

Clift, Peter

195

A Daytime Complement to the Reverse Absorption Technique for Improved Automated Detection of Volcanic Ash  

Science Conference Proceedings (OSTI)

An automated volcanic cloud detection algorithm that utilizes four spectral channels (0.65, 3.75, 11, and 12 ?m) that are common among several satellite-based instruments is presented. The new algorithm is physically based and globally applicable ...

Michael J. Pavolonis; Wayne F. Feltz; Andrew K. Heidinger; Gregory M. Gallina

2006-11-01T23:59:59.000Z

196

Long-Range Forecast Trajectories of Volcanic Ash from Redoubt Ash from Redoubt Volcano Eruptions  

Science Conference Proceedings (OSTI)

The Redoubt Volcano in Alaska began a series of eruptions on 14 December 1989. Volcanic ash was often reported to reach heights where, as it moved with the upper-level flow, it could affect aircraft operations thousands of km from the eruption. ...

Jerome L. Heffter; Barbara J. B. Stunder; Glenn D. Rolph

1990-12-01T23:59:59.000Z

197

Resuspension of Relic Volcanic Ash and Dust from Katmai: Still an Aviation Hazard  

Science Conference Proceedings (OSTI)

Northwest winds were strong enough to continuously resuspend relic volcanic ash from the Katmai volcano cluster and the Valley of Ten Thousand Smokes on 2021 September 2003. The ash cloud reached over 1600 m and extended over 230 km into the ...

David Hadley; Gary L. Hufford; James J. Simpson

2004-10-01T23:59:59.000Z

198

ORIGINAL PAPER El Chichon volcano, April 4, 1982: volcanic cloud history  

E-Print Network (OSTI)

ORIGINAL PAPER El Chicho´n volcano, April 4, 1982: volcanic cloud history and fine ash fallout of distal fallout samples collected soon after eruption. Although, about half of the mass of silicate from the volcano are mostly \\62 lm in diameter. The most plausible expla- nation for rapid fallout

Rose, William I.

199

GCM Simulations of Volcanic Aerosol Forcing. Part I: Climate Changes Induced by Steady-State Perturbations  

Science Conference Proceedings (OSTI)

The authors have used the Goddard Institute for Space Studies Climate Model II to simulate the response of the climate system to a spatially and temporally constant forcing by volcanic aerosols having an optical depth of 0.15. The climatic ...

James B. Pollack; David Rind; Andrew Lacis; James E. Hansen; Makiko Sato; Reto Ruedy

1993-09-01T23:59:59.000Z

200

Diffusion in the Lower Stratosphere as Determined from Lidar Measurements of Volcanic Aerosol Dispersion  

Science Conference Proceedings (OSTI)

Lidar measurements of the stratospheric aerosol layer from the Fuego volcanic eruption in 1974 are analyzed to yield estimates of effective vertical mixing coefficients Kz. The data at 19N latitude give Kz=6.6102 cm2 s?1 for the altitude range ...

Ellis E. Remsperg

1980-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Comments on ``Failures in detecting volcanic ash from a satellite-based technique''  

E-Print Network (OSTI)

of active vol- canism (pp. 45­64). Washington, DC: American Geophysical Union. Davies, M. A., & Rose, W. I inter- national symposium on volcanic ash and aviation safety, Seattle, WA. Washington, DC: US GPO. US, causing severe restrictions to air traffic for many hours. This cloud was tracked without any split-window

Bluth, Gregg

202

SIMULATION OF THE ICELAND VOLCANIC ERUPTION OF APRIL 2010 USING THE ENSEMBLE SYSTEM  

SciTech Connect

The Eyjafjallajokull volcanic eruption in Iceland in April 2010 disrupted transportation in Europe which ultimately affected travel plans for many on a global basis. The Volcanic Ash Advisory Centre (VAAC) is responsible for providing guidance to the aviation industry of the transport of volcanic ash clouds. There are nine such centers located globally, and the London branch (headed by the United Kingdom Meteorological Office, or UKMet) was responsible for modeling the Iceland volcano. The guidance provided by the VAAC created some controversy due to the burdensome travel restrictions and uncertainty involved in the prediction of ash transport. The Iceland volcanic eruption provides a useful exercise of the European ENSEMBLE program, coordinated by the Joint Research Centre (JRC) in Ispra, Italy. ENSEMBLE, a decision support system for emergency response, uses transport model results from a variety of countries in an effort to better understand the uncertainty involved with a given accident scenario. Model results in the form of airborne concentration and surface deposition are required from each member of the ensemble in a prescribed format that may then be uploaded to a website for manipulation. The Savannah River National Laboratory (SRNL) is the lone regular United States participant throughout the 10-year existence of ENSEMBLE. For the Iceland volcano, four separate source term estimates have been provided to ENSEMBLE participants. This paper focuses only on one of those source terms. The SRNL results in relation to other modeling agency results along with useful information obtained using an ensemble of transport results will be discussed.

Buckley, R.

2011-05-10T23:59:59.000Z

203

Factors Influencing Volcanic Ash Dispersal from the 1995 and 1996 Eruptions of Mount Ruapehu, New Zealand  

Science Conference Proceedings (OSTI)

The prediction of the dispersal of volcanic ash from events such as the Ruapehu eruptions of 1995 and 1996 is important, not only for civil-defense authorities who need to warn people in downwind areas, but for airline companies that have to ...

Richard Turner; Tony Hurst

2001-01-01T23:59:59.000Z

204

Steam Explosions, Earthquakes, and Volcanic Eruptions--What's in Yellowstone's Future?  

E-Print Network (OSTI)

Steam Explosions, Earthquakes, and Volcanic Eruptions-- What's in Yellowstone's Future? U. In the background, steam vigorously rises from the hot Each year, millions of visitors come to admire the hot, such as geysers. Steam and hot water carry huge quantities of thermal en- ergy to the surface from the magma cham

Fleskes, Joe

205

Fusion-based volcanic earthquake detection and timing in wireless sensor networks  

Science Conference Proceedings (OSTI)

Volcano monitoring is of great interest to public safety and scientific explorations. However, traditional volcanic instrumentation such as broadband seismometers are expensive, power hungry, bulky, and difficult to install. Wireless sensor networks ... Keywords: Volcano monitoring, data fusion, earthquake detection, wireless sensor network

Rui Tan; Guoliang Xing; Jinzhu Chen; Wen-Zhan Song; Renjie Huang

2013-03-01T23:59:59.000Z

206

1.0 Introduction Voluminous volcanic intrusive complexes are com-  

E-Print Network (OSTI)

processes and today's landscape in the Karoo Basin and offshore Norway. The resulting multimedia art of the project corresponds to the publication of geological pamphlets and field guides of the Karoo Basin and publish popular science booklets on the geology of the Karoo Basin for distribution in Norway and South

Polteau, Stephane

207

NREL Response to the Report 'Study of the Effects on Employment of Public Aid to Renewable Energy Sources' from King Juan Carlos University (Spain) (White Paper)  

SciTech Connect

Job generation has been a part of the national dialogue surrounding energy policy and renewable energy (RE) for many years. RE advocates tout the ability of renewable energy to support new job opportunities in rural America and the manufacturing sector. Others argue that spending on renewable energy is an inefficient allocation of resources and can result in job losses in the broader economy. The report, Study of the Effects on Employment of Public Aid to Renewable Energy Sources, from King Juan Carlos University in Spain, is one recent addition to this debate. This report asserts that, on average, every renewable energy job in Spain 'destroyed' 2.2 jobs in the broader Spanish economy. The authors also apply this ratio to the U.S. context to estimate expected job loss from renewable energy development and policy in the United States. This memo discusses fundamental and technical limitations of the analysis by King Juan Carlos University and notes critical assumptions implicit in the ultimate conclusions of their work. The memo also includes a review of traditional employment impact analyses that rely on accepted, peer-reviewed methodologies, and it highlights specific variables that can significantly influence the results of traditional employment impact analysis.

Lantz, E.; Tegen, S.

2009-08-01T23:59:59.000Z

208

Volcanic Eruptions, Large-Scale Modes in the Northern Hemisphere, and the El NioSouthern Oscillation  

Science Conference Proceedings (OSTI)

The author analyzes the impact of 13 major stratospheric aerosol producing volcanic eruptions since 1870 on the large-scale variability modes of sea level pressure in the Northern Hemisphere winter. The paper focuses on the Arctic Oscillation (AO)...

Bo Christiansen

2008-03-01T23:59:59.000Z

209

Airborne Asian dust: case study of long-range transport and implications for the detection of volcanic ash  

E-Print Network (OSTI)

a) 11- ? m image of the Aleutians and (b) corresponding T 4are for TOMS data over the Aleutian Islands (Figs. 9c,d). Ae.g. , the Kuril/Kamchatka/Aleutian volcanic chains, the

Simpson, James J; Hufford, G L; Servranckx, R; Berg, J; Pieri, D

2003-01-01T23:59:59.000Z

210

Principal Component Image Analysis of MODIS for Volcanic Ash. Part II: Simulation of Current GOES and GOES-M Imagers  

Science Conference Proceedings (OSTI)

In Part I of this paper the infrared bands of the Moderate Resolution Imaging Spectroradiometer (MODIS) were analyzed using principal component image analysis for volcanic ash signals. The analyses performed determined that several of the thermal ...

Donald W. Hillger; James D. Clark

2002-10-01T23:59:59.000Z

211

Principal Component Image Analysis of MODIS for Volcanic Ash. Part I: Most Important Bands and Implications for Future GOES Imagers  

Science Conference Proceedings (OSTI)

In Part I of this paper, the infrared bands of the Moderate Resolution Imaging Spectroradiometer (MODIS) are analyzed for volcanic ash signals using principal component image analysis. Target volcanoes included Popocatepetl volcano near Mexico ...

Donald W. Hillger; James D. Clark

2002-10-01T23:59:59.000Z

212

Implementation and validation of a meteorological dispersion model applied on volcanic gas emission for studies of environmental impact.  

E-Print Network (OSTI)

??The Lagrangian atmospheric transport model FLEXPART-WRF was implemented to model dispersion of volcanic gas emitted from the three volcanoes Popocatpetl in Mexico (lat: 19.02, lon: (more)

Landgren, Oskar A.

2011-01-01T23:59:59.000Z

213

The 56 December 1991 FIRE IFO II Jet Stream Cirrus Case Study: Possible Influences of Volcanic Aerosols  

Science Conference Proceedings (OSTI)

In presenting an overview of the cirrus clouds comprehensively studied by ground-based and airborne sensors from Coffeyville, Kansas, during the 56 December 1992 Project FIRE IFO II case study period, evidence is provided that volcanic aerosols ...

Kenneth Sassen; David O'C. Starr; Gerald G. Mace; Michael R. Poellot; S.H. Melfi; Wynn L. Eberhard; James D. Spinhirne; E.W. Eloranta; Donald E. Hagen; John Hallett

1995-01-01T23:59:59.000Z

214

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 101, NO. B5, PAGES 11,655-11,663, MAY 10, 1996 Geomagnetic field inclinations for the past 400 kyr from the  

E-Print Network (OSTI)

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 101, NO. B5, PAGES 11,655-11,663, MAY 10, 1996 Geomagnetic Institute of Technology, Pasadena Abstract. A volcanic record of geomagnetic field inclination for the past of the geomagnetic field. The secular variation has a mean of 30.9° (95= 2.27°), which is significantly shallower

Bruck, Jehoshua (Shuki)

215

A Preparation Zone For Volcanic Explosions Beneath Naka-Dake Crater, Aso  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » A Preparation Zone For Volcanic Explosions Beneath Naka-Dake Crater, Aso Volcano, As Inferred From Magnetotelluric Surveys Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Preparation Zone For Volcanic Explosions Beneath Naka-Dake Crater, Aso Volcano, As Inferred From Magnetotelluric Surveys Details Activities (0) Areas (0) Regions (0) Abstract: The 1st crater of Naka-dake, Aso volcano, is one of the most active craters in Japan, and known to have a characteristic cycle of activity that consists of the formation of a crater lake, drying-up of the

216

Surface Mercury Geochemistry As A Guide To Volcanic Vent Structure And  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Surface Mercury Geochemistry As A Guide To Volcanic Vent Structure And Zones Of High Heat Flow In The Valley Of Ten Thousand Smokes, Katmai National Park, Alaska Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Surface Mercury Geochemistry As A Guide To Volcanic Vent Structure And Zones Of High Heat Flow In The Valley Of Ten Thousand Smokes, Katmai National Park, Alaska Details Activities (2) Areas (1) Regions (0) Abstract: A reconnaissance survey of Hg° was designed to model the 1912 Novarupta vent structure and delineate zones of near-surface high heat

217

Acoustic waves in the atmosphere and ground generated by volcanic activity  

SciTech Connect

This paper reports an interesting sequence of harmonic tremor observed in the 2011 eruption of Shinmoe-dake volcano, southern Japan. The main eruptive activity started with ashcloud forming explosive eruptions, followed by lava effusion. Harmonic tremor was transmitted into the ground and observed as seismic waves at the last stage of the effusive eruption. The tremor observed at this stage had unclear and fluctuating harmonic modes. In the atmosphere, on the other hand, many impulsive acoustic waves indicating small surface explosions were observed. When the effusion stopped and the erupted lava began explosive degassing, harmonic tremor started to be transmitted also to the atmosphere and observed as acoustic waves. Then the harmonic modes became clearer and more stable. This sequence of harmonic tremor is interpreted as a process in which volcanic degassing generates an open connection between the volcanic conduit and the atmosphere. In order to test this hypothesis, a laboratory experiment was performed and the essential features were successfully reproduced.

Ichihara, Mie; Lyons, John; Oikawa, Jun; Takeo, Minoru [Earthquake Research Institute, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032 (Japan); Instituto Geofisico, Escuela Politecnica Nacional, Ladron de Guevara E11-253, Aptdo 2759, Quito (Ecuador); Earthquake Research Institute, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032 (Japan)

2012-09-04T23:59:59.000Z

218

Comparative analysis of core drilling and rotary drilling in volcanic terrane  

DOE Green Energy (OSTI)

Initially, the goal of this report is to compare and contrast penetration rates of rotary-mud drilling and core drilling in young volcanic terranes. It is widely recognized that areas containing an abundance of recent volcanic rocks are excellent targets for geothermal resources. Exploration programs depend heavily upon reliable subsurface information, because surface geophysical methods may be ineffective, inconclusive, or both. Past exploration drilling programs have mainly relied upon rotary-mud rigs for virtually all drilling activity. Core-drilling became popular several years ago, because it could deal effectively with two major problems encountered in young volcanic terranes: very hard, abrasive rock and extreme difficulty in controlling loss of circulation. In addition to overcoming these difficulties, core-drilling produced subsurface samples (core) that defined lithostratigraphy, structure and fractures far better than drill-chips. It seemed that the only negative aspect of core drilling was cost. The cost-per-foot may be two to three times higher than an ''initial quote'' for rotary drilling. In addition, penetration rates for comparable rock-types are often much lower for coring operations. This report also seeks to identify the extent of wireline core drilling (core-drilling using wireline retrieval) as a geothermal exploration tool. 25 refs., 21 figs., 13 tabs.

Flynn, T.; Trexler, D.T.; Wallace, R.H. Jr. (ed.)

1987-04-01T23:59:59.000Z

219

Structural interpretation of Coso Geothermal field, Inyo County, California  

Open Energy Info (EERE)

Coso Geothermal field, Inyo County, California Coso Geothermal field, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Structural interpretation of Coso Geothermal field, Inyo County, California Details Activities (2) Areas (1) Regions (0) Abstract: The Coso Geothermal field, located east of the Sierra Nevada at the northern edge of the high Mojave Desert in southern California, is an excellent example of a structurally controlled geothermal resource. The geothermal system appears to be associated with at least one dominant north-south-trending feature which extends several miles through the east-central portion of the Coso volcanic field. Wells drilled along this feature have encountered production from distinct fractures in crystalline basement rocks. The identified producing fractures occur in zones which

220

Hierarchical probabilistic regionalization of volcanism for Sengan region in Japan using multivariate statistical techniques and geostatistical interpolation techniques.  

DOE Green Energy (OSTI)

Sandia National Laboratories, under contract to Nuclear Waste Management Organization of Japan (NUMO), is performing research on regional classification of given sites in Japan with respect to potential volcanic disruption using multivariate statistics and geo-statistical interpolation techniques. This report provides results obtained for hierarchical probabilistic regionalization of volcanism for the Sengan region in Japan by applying multivariate statistical techniques and geostatistical interpolation techniques on the geologic data provided by NUMO. A workshop report produced in September 2003 by Sandia National Laboratories (Arnold et al., 2003) on volcanism lists a set of most important geologic variables as well as some secondary information related to volcanism. Geologic data extracted for the Sengan region in Japan from the data provided by NUMO revealed that data are not available at the same locations for all the important geologic variables. In other words, the geologic variable vectors were found to be incomplete spatially. However, it is necessary to have complete geologic variable vectors to perform multivariate statistical analyses. As a first step towards constructing complete geologic variable vectors, the Universal Transverse Mercator (UTM) zone 54 projected coordinate system and a 1 km square regular grid system were selected. The data available for each geologic variable on a geographic coordinate system were transferred to the aforementioned grid system. Also the recorded data on volcanic activity for Sengan region were produced on the same grid system. Each geologic variable map was compared with the recorded volcanic activity map to determine the geologic variables that are most important for volcanism. In the regionalized classification procedure, this step is known as the variable selection step. The following variables were determined as most important for volcanism: geothermal gradient, groundwater temperature, heat discharge, groundwater pH value, presence of volcanic rocks and presence of hydrothermal alteration. Data available for each of these important geologic variables were used to perform directional variogram modeling and kriging to estimate values for each variable at 23949 centers of the chosen 1 km cell grid system that represents the Sengan region. These values formed complete geologic variable vectors at each of the 23,949 one km cell centers.

Park, Jinyong (University of Arizona, Tucson, AZ); Balasingham, P. (University of Arizona, Tucson, AZ); McKenna, Sean Andrew; Kulatilake, Pinnaduwa H. S. W. (University of Arizona, Tucson, AZ)

2004-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

State-of-the-art for evaluating the potential impact of tectonism and volcanism on a radioactive waste repository  

Science Conference Proceedings (OSTI)

Most estimates of the time required for safe isolation of radioactive wastes from the biosphere range from 100,000 to 1,000,000 years. For such long time spans, it is necessary to assess the potential effects of geologic processes such as volcanism and tectonic activity on the integrity of geologic repositories. Predictions of geologic phenomena can be based on probabilistic models, which assume a random distribution of events. The necessary historic and geologic records are rarely available to provide an adequate data base for such predictions. The observed distribution of volcanic and tectonic activity is not random, and appears to be controlled by extremely complex deterministic processes. The advent of global plate tectonic theory in the past two decades has been a giant step toward understanding these processes. At each potential repository site, volcanic and tectonic processes should be evaluated to provide the most thorough possible understanding of those deterministic processes. Based on this knowledge, judgements will have to be made as to whether or not the volcanic and tectonic processes pose unacceptable risk to the integrity of the repository. This report describes the potential hazards associated with volcanism and tectonism, and the means for evaluating these processes.

Not Available

1980-07-16T23:59:59.000Z

222

Compilation of modal analyses of volcanic rocks from the Nevada Test Site area, Nye County, Nevada  

SciTech Connect

Volcanic rock samples collected from the Nevada Test Site, Nye County, Nevada, between 1960 and 1985 were analyzed by thin section to obtain petrographic mode data. In order to provide rapid accessibility to the entire database, all data from the cards were entered into a computerized database. This computer format will enable workers involved in stratigraphic studies in the Nevada Test Site area and other locations in southern Nevada to perform independent analyses of the data. The data were compiled from the mode cards into two separate computer files. The first file consists of data collected from core samples taken from drill holes in the Yucca Mountain area. The second group of samples were collected from measured sections and surface mapping traverses in the Nevada Test Site area. Each data file is composed of computer printouts of tables with mode data from thin section point counts, comments on additional data, and location data. Tremendous care was taken in transferring the data from the cards to computer, in order to preserve the original information and interpretations provided by the analyzer. In addition to the data files above, a file is included that consists of Nevada Test Site petrographic data published in other US Geological Survey and Los Alamos National Laboratory reports. These data are presented to supply the user with an essentially complete modal database of samples from the volcanic stratigraphic section in the Nevada Test Site area. 18 refs., 4 figs.

Page, W.R.

1990-10-01T23:59:59.000Z

223

Paleomagnetism of the Quaternary Cerro Prieto, Crater Elegante, and Salton Buttes volcanic domes in the northern part of the Gulf of California rhombochasm  

DOE Green Energy (OSTI)

Deviating thermomagnetic directions in volcanics representing the second and fifth or sixth pulse of volcanism suggest that the Cerro Prieto volcano originated about 110,000 years B.P. and continued to be active intermittently until about 10,000 years ago.

de Boer, J.

1980-02-01T23:59:59.000Z

224

Characterizing Structural Controls of Geothermal Fields in the Northwestern  

Open Energy Info (EERE)

Characterizing Structural Controls of Geothermal Fields in the Northwestern Characterizing Structural Controls of Geothermal Fields in the Northwestern Great Basin- A Progress Report Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Characterizing Structural Controls of Geothermal Fields in the Northwestern Great Basin- A Progress Report Abstract Considering a lack of recent volcanism, the abundant geothermal activity in the northwestern Great Basin is somewhat anomalous. The prolific activity may result from enhanced dilation on N- to NNE-striking normal faults induced by a transfer of NW-directed dextral shear from the Walker Lane to NW-directed extension in the Great Basin. Although faults control most geothermal activity in the Great Basin, few detailed investigations have been conducted on the specific structural controls of individual fields.

225

Field Mapping At Mokapu Penninsula Area (Thomas, 1986) | Open Energy  

Open Energy Info (EERE)

Field Mapping At Mokapu Penninsula Area (Thomas, Field Mapping At Mokapu Penninsula Area (Thomas, 1986) Exploration Activity Details Location Mokapu Penninsula Area Exploration Technique Field Mapping Activity Date Usefulness useful DOE-funding Unknown Notes Geological mapping on Mokapu (Cox and Sinton, 1982) identified at least three separate volcanic vents within the study area and several other vents forming small islets around Mokapu. References Donald M. Thomas (1 January 1986) Geothermal Resources Assessment In Hawaii Retrieved from "http://en.openei.org/w/index.php?title=Field_Mapping_At_Mokapu_Penninsula_Area_(Thomas,_1986)&oldid=510748" Category: Exploration Activities What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load)

226

Pattern recognition of volcanic tremor data on Mt. Etna (Italy) with KKAnalysis-A software program for unsupervised classification  

Science Conference Proceedings (OSTI)

Continuous seismic monitoring plays a key role in the surveillance of the Mt. Etna volcano. Besides earthquakes, which often herald eruptive episodes, the persistent background signal, known as volcanic tremor, provides important information on the volcano ... Keywords: Cluster analysis, Fuzzy C-means, K-means, Self-organizing map, Volcano monitoring, Volcano seismology

A. Messina; H. Langer

2011-07-01T23:59:59.000Z

227

A Magnetotelluric Survey Of The Nissyros Geothermal Field (Greece) | Open  

Open Energy Info (EERE)

Magnetotelluric Survey Of The Nissyros Geothermal Field (Greece) Magnetotelluric Survey Of The Nissyros Geothermal Field (Greece) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Magnetotelluric Survey Of The Nissyros Geothermal Field (Greece) Details Activities (0) Areas (0) Regions (0) Abstract: A preliminary magnetotelluric study consisting of twenty measurements, in the frequency range 128-0.016 Hz, was undertaken on the active volcanic island of Nissyros. Two boreholes identify the existence of high enthalpy manifestations. The results correlate well with the borehole logs and delineate, in a 1-D approximation, the existence and symmetry of a possible geothermal reservoir. Some of the main faulting features were detected as well as an inferred highly conductive zone at the centre of the

228

Geologic controls on transgressive-regressive cycles in the upper Pictured Cliffs sandstone and coal geometry in the lower Fruitland Formation, Northern San Juan Basin, New Mexico and Colorado  

Science Conference Proceedings (OSTI)

Three upper Pictured Cliffs Sandstone tongues in the northern part of the San Juan Basin record high-frequency transgressive episodes during the Late Cretaceous and are inferred to have been caused by eustatic sea level rise coincident with differential subsidence. Outcrop and subsurface studies show that each tongue is an amalgamated barrier strand-plain unit up to 100 ft (30 m) thick. Upper Pictured Cliffs barrier strand-plain sandstones underlie and bound thickest Fruitland coal seams on the seaward side. Controls on Fruitland coal-seam thickness and continuity are a function of local facies distribution in a coastal-plain setting, shoreline positions related to transgressive-regressive cycles, and basin subsidence. During periods of relative sea level rise, the Pictured Cliffs shoreline was temporarily stabilized, allowing thick, coastal-plain peats to accumulate. Although some coal seams in the lower Fruitland tongue override abandoned Pictured Cliffs shoreline deposits, many pinch out against them. Differences in the degree of continuity of these coal seams relative to coeval shoreline sandstones are attributed to either differential subsidence in the northern part of the basin, multiple episodes of sea level rise, local variations in accommodation and progradation, stabilization of the shoreline by aggrading peat deposits, or a combination of these factors. Fruitland coalbed methane resources and productivity are partly controlled by coal-seam thickness; other important factors include thermal maturity, fracturing, and overpressuring. The dominant production trend occurs in the northern part of the basin and is oriented northwestward, coinciding with the greatest Fruitland net coal thickness.

Ambrose, W.A.; Ayers, W.B. [University of Texas, Austin, TX (United States)

2007-08-15T23:59:59.000Z

229

Evaluation of Surface Temperature and Emissivity Derived from ASTER Data: A Case Study Using Ground-Based Measurements at a Volcanic Site  

Science Conference Proceedings (OSTI)

The land surface temperature (LST) and emissivity (LSE) derived from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data were evaluated in a low spectral contrast volcanic site at an altitude of 2000 m on the island of ...

frica Barreto; Manuel Arbelo; Pedro A. Hernndez-Leal; Laia Nez-Casillas; Mara Mira; Csar Coll

2010-10-01T23:59:59.000Z

230

Age and location of volcanic centers less than or equal to 3. 0 Myr old in Arizona, New Mexico and the Trans-Pecos Area of West Texas  

DOE Green Energy (OSTI)

This map is one of a series of maps designed for hot dry rock geothermal assessment in Arizona, New Mexico, and the Trans-Pecos area of west Texas. The 3.0 m.y. cutoff age was selected because original heat has probably largely dissipated in older rocks. The location of volcanic centers is more important to geothermal resource assessment than the location of their associated volcanic rocks; however, ages have been determined for numerous flows far from their source. Therefore, the distribution of all volcanic rocks less than or equal to 3.0 m.y. old, for which there is at least one determined age, are shown. Location of the volcanic vents and rocks were taken from Luedke and Smith (1978).

Aldrich, M.J.; Laughlin, A.W.

1981-04-01T23:59:59.000Z

231

Stratigraphy, petrology, and geochemistry of the Spurr Volcanic Complex, eastern Aleutian Arc, Alaska. [(Appendix for geothermal fluid chemistry)  

DOE Green Energy (OSTI)

The Spurr Volcanic Complex (SVC) is a calcalkaline, medium-K, sequence of andesites erupted over the last quarter of a million years by the easternmost currently active volcanic center in the Aleutian Arc. The ancestral Mt. Spurr was built mostly of andesites of uniform composition (58 to 60% SiO/sub 2/), although andesite production was episodically interrupted by the introduction of new batches of more mafic magma. Near the end of the Pleistocene the ancestral Mt. Spurr underwent Bezyianny-type avalanche caldera formation, resulting in the production of a volcanic debris avalanche with overlying ashflows. Immediately afterward, a large dome (the present Mt. Spurr) was emplaced in the caldera. Both the ashflows and dome are made of acid andesite more silicic than any analyzed lavas from the ancestral Mt. Spurr (60 to 63% SiO/sub 2/), yet contain olivine and amphibole xenocrysts derived from more mafic magma. The mafic magma (53 to 57% SiO/sub 2/) erupted during and after dome emplacement, forming proto-Crater Peak and Crater Peak. Hybrid pyroclastic flows and lavas were also produced. Proto-Crater Peak underwent glacial dissection prior to the formation of Crater Peak in approximately the same location. Appendices II through VIII contain a summary of mineral compositions; Appendix I contains geochemical data. Appendix IX by R.J. Motyka and C.J. Nye describes the chemistry of geothermal fluids. 78 refs., 16 figs., 3 tabs.

Nye, C.J.

1987-12-01T23:59:59.000Z

232

Analysis of fractures in volcanic cores from Pahute Mesa, Nevada Test Site  

SciTech Connect

The Nevada Test Site (NTS), located in Nye County, southern Nevada, was the location of 828 announced underground nuclear tests, conducted between 1951 and 1992. Approximately one-third of these tests were detonated near or below the water table. An unavoidable consequence of these testing activities was introducing radionuclides into the subsurface environment, impacting groundwater. Groundwater flows beneath the NTS almost exclusively through interconnected natural fractures in carbonate and volcanic rocks. Information about these fractures is necessary to determine hydrologic parameters for future Corrective Action Unit (CAU)-specific flow and transport models which will be used to support risk assessment calculations for the U.S. Department of Energy, Nevada Operations Office (DOE/NV) Underground Test Area (UGTA) remedial investigation. Fracture data are critical in reducing the uncertainty of the predictive capabilities of CAU-specific models because of their usefulness in generating hydraulic conductivity values and dispersion characteristics used in transport modeling. Specifically, fracture aperture and density (spacing) are needed to calculate the permeability anisotropy of the formations. Fracture mineralogy information is used qualitatively to evaluate diffusion and radionuclide retardation potential in transport modeling. All these data can best be collected through examination of core samples.

Drellack, S.L. Jr.; Prothro, L.B.; Roberson, K.E. [and others

1997-09-01T23:59:59.000Z

233

Investigation of the thermal regime and geologic history of the Cascade volcanic arc: First phase of a program for scientific drilling in the Cascade Range  

DOE Green Energy (OSTI)

A phased, multihole drilling program with associated science is proposed as a means of furthering our understanding of the thermal regime and geologic history of the Cascade Range of Washington, Oregon, and northern California. The information obtained from drilling and ancillary geological and geophysical investigations will contribute to our knowledge in the following general areas: (1) the magnitude of the regional background heat flow of parts of the Quaternary volcanic belt dominated by the most abundant volcanic rock types, basalt and basaltic andesite; (2) the nature of the heat source responsible for the regional heat-flow anomaly; (3) the characteristics of the regional hydrothermal and cold-water circulation; the rates of volcanism for comparison with models for the rate and direction of plate convergence of the Cascades; (5) the history of deformation and volcanism in the volcanic arc that can be related to subduction; (6) the present-day stress regime of the volcanic arc and the relation of these stresses to plate interactions and possible large earthquakes; and the current geometry of the subducted oceanic plate below the Cascade Range and the relationship of the plate to the distribution of heat flow, Quaternary volcanism, and Quaternary deformation. Phase I research will be directed toward a detailed investigation of the Santiam Pass segment. In concert with the Santiam Pass research, a detailed study of the nearby Breitenbush Hot Springs area is also recommended as a component of Phase I. The object of the Breitenbush research is to study one of the hottest known Cascade hydrothermal systems, which coincidentally also has a good geological and geophysical data base. A coordinated program of drilling, sampling, subsurface measurements, and surface surveys will be associated with the drilling of several holes.

Priest, G.R.

1987-01-01T23:59:59.000Z

234

Coos Bay Field Gulf Coast Coal Region Williston Basin Illinois  

Gasoline and Diesel Fuel Update (EIA)

San Juan Basin C e n t r a l A p p a l a c h i a n B a s i n Michigan Basin Greater Green River Basin Black Warrior Basin North Central Coal Region Arkoma Basin Denver Basin...

235

Suppressant: Electric Fields  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. Suppressant:Electric Fields. Fire Extinguishment of Pool Flames by Means of a DC electric Field.. ...

2011-11-04T23:59:59.000Z

236

Internal split field generator  

DOE Patents (OSTI)

A generator includes a coil of conductive material. A stationary magnetic field source applies a stationary magnetic field to the coil. An internal magnetic field source is disposed within a cavity of the coil to apply a moving magnetic field to the coil. The stationary magnetic field interacts with the moving magnetic field to generate an electrical energy in the coil.

Thundat; ,Thomas George (Knoxville, TN); Van Neste, Charles W. (Kingston, TN); Vass, Arpad Alexander (Oak Ridge, TN)

2012-01-03T23:59:59.000Z

237

A Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles  

Open Energy Info (EERE)

Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles Caldera, New Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles Caldera, New Mexico Details Activities (10) Areas (2) Regions (0) Abstract: The Baca location #1 geothermal field is located in north-central New Mexico within the western half of the Plio-Pleistocene Valles Caldera. Steam and hot water are produced primarily from the northeast-trending Redondo Creek graben, where downhole temperatures exceed 260°C at depths of less than 2 km. Stratigraphically the reservoir region can be described as a five-layer sequence that includes Tertiary and Quaternary volcanic rocks, and Mesozoic and Tertiary sediments overlying Precambrian granitic

238

Microseismicity and 3-D Mapping of an Active Geothermal Field, Kilauea  

Open Energy Info (EERE)

Microseismicity and 3-D Mapping of an Active Geothermal Field, Kilauea Microseismicity and 3-D Mapping of an Active Geothermal Field, Kilauea Lower East Rift Zone, Puna, Hawaii Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Microseismicity and 3-D Mapping of an Active Geothermal Field, Kilauea Lower East Rift Zone, Puna, Hawaii Abstract The local fault and dike structures in Puna, southeastern Hawaii, are of interest both in terms of electricity productionand volcanic hazard monitoring. The geothermal powerplant at Puna has a 30 MW capacity and is built on a sectionof the Kilauea Lower East Rift Zone that was resurfaced by lava flows as recently as 1955 and 1960.The Puna Borehole Network was established in 2006 inorder to provide detailed seismic data about the Puna geothermal field. The array consists of eight 3-component borehole

239

Richard Paul Vlosky Juan Antonio Aguirre  

E-Print Network (OSTI)

by sawmill operators due to a lack of consumer preferences and demand. (Guillen 1994). The same study found In the case of Mexico, Guillen (1994) found that consumer preferences are high for cedro and caoba, which.Turrialba.Costa Rica. Guillen Abraham,1994.Caracteristicas del Consumo y Comercializacion de la Madera en

240

The floating marketplace of San Juan Bay  

E-Print Network (OSTI)

This thesis seeks to establish the marketplace as a temporal and spatial event that affects a city in a meaningful way. The marketplace was the site of greatest congestion, activity and drama in many cities, often combining ...

Carbonell, Jorge (Jorge R.), 1975-

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

ENTO 489 Field Entomology Field Project Plan  

E-Print Network (OSTI)

ENTO 489 ­ Field Entomology Field Project Plan GENERAL Title: A Taxonomic Survey of Late Summer will be using aerial sweep nets as our only technique to collect the butterflies because this is the best way: · Materials needed to implement the project in the field include: o 2 aerial sweep nets o 2-4 killing jars set

Behmer, Spencer T.

242

External split field generator  

DOE Patents (OSTI)

A generator includes a coil disposed about a core. A first stationary magnetic field source may be disposed on a first end portion of the core and a second stationary magnetic field source may be disposed on a second end portion of core. The first and second stationary magnetic field sources apply a stationary magnetic field to the coil. An external magnetic field source may be disposed outside the coil to apply a moving magnetic field to the coil. Electrical energy is generated in response to an interaction between the coil, the moving magnetic field, and the stationary magnetic field.

Thundat, Thomas George (Knoxville, TN); Van Neste, Charles W. (Kingston, TN); Vass, Arpad Alexander (Oak Ridge, TN)

2012-02-21T23:59:59.000Z

243

From model conception to verification and validation, a global approach to multiphase Navier-Stoke models with an emphasis on volcanic explosive phenomenology  

Science Conference Proceedings (OSTI)

Large-scale volcanic eruptions are hazardous events that cannot be described by detailed and accurate in situ measurement: hence, little to no real-time data exists to rigorously validate current computer models of these events. In addition, such phenomenology involves highly complex, nonlinear, and unsteady physical behaviors upon many spatial and time scales. As a result, volcanic explosive phenomenology is poorly understood in terms of its physics, and inadequately constrained in terms of initial, boundary, and inflow conditions. Nevertheless, code verification and validation become even more critical because more and more volcanologists use numerical data for assessment and mitigation of volcanic hazards. In this report, we evaluate the process of model and code development in the context of geophysical multiphase flows. We describe: (1) the conception of a theoretical, multiphase, Navier-Stokes model, (2) its implementation into a numerical code, (3) the verification of the code, and (4) the validation of such a model within the context of turbulent and underexpanded jet physics. Within the validation framework, we suggest focusing on the key physics that control the volcanic cloudsnamely, momentum-driven supersonic jet and buoyancy-driven turbulent plume. For instance, we propose to compare numerical results against a set of simple and well-constrained analog experiments, which uniquely and unambiguously represent each of the key-phenomenology. Key

Dartevelle, Sebastian

2007-10-01T23:59:59.000Z

244

Energetics of gas-driven limnic and volcanic eruptions Department of Geological Sciences, The University of Michigan, Ann Arbor, MI 48109-1063, USA  

E-Print Network (OSTI)

and when equilibrium is reached between the gas and liquid phases Natural silicate melts often contain two.3. Dynamics of reversible gas-driven eruptions through a fluid medium Because buoyancy plays an important roleEnergetics of gas-driven limnic and volcanic eruptions Y. Zhang* Department of Geological Sciences

Zhang, Youxue

245

Exploration of volcanic geothermal energy resources based on rheological techniques. Final report  

DOE Green Energy (OSTI)

Tidal strain and tilt field observations were carried out during the period February 1978 to December 1979 at the Klamath Graben and Newberry Caldera in Oregon and at Krafla in Northern Iceland. Moreover, tilt observations were made at Mt. St. Helens, Washington, during the summer of 1980. Two strainmeters of the same type as now in use by the US Geological Survey were applied in the strain work. Tilts were measured by two Kinemetrics model TM-1B biaxial tilt meters. The instruments were placed at depths of approximately one to two meters below the ground surface. Both strain and tilt fields turn out to be heavily contaminated by noise that is mostly of thermoelastic origin. In spite of considerable efforts, it has not been possible to process the strain field data to obtain sufficiently clear tidal signals. The tilt data are less contaminated and rather clear tidal signals were observed at Newberry in Oregon and Krafla in Iceland. A local magnification by a factor of about 3 of the EW component of the theoretical solid earth and ocean load tilt was observed at one station at Krafla. Moreover, the tidal tilt component across the ring fault at Newberry appears to be magnified by a factor of 1.4 to 1.9. The phenomena at the Krafla may possibly be due to a local magma chamber. These results are a clear indication of a tilt field modification by local structure and indicate the possibility of using tilt data to locate subsurface magma bodies.

Bodvarsson, G.; Axelsson, G.; Johnson, A.

1980-01-01T23:59:59.000Z

246

Water Sampling At Dixie Valley Geothermal Field Area (Kennedy & Van Soest,  

Open Energy Info (EERE)

Van Soest, Van Soest, 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Water Sampling At Dixie Valley Geothermal Field Area (Kennedy & Van Soest, 2006) Exploration Activity Details Location Dixie Valley Geothermal Field Area Exploration Technique Water Sampling Activity Date Usefulness useful DOE-funding Unknown Notes Fluids from springs, fumaroles, and wells throughout Dixie Valley, NV were analyzed for noble gas abundances and isotopic compositions. The helium isotopic compositions of fluids produced from the Dixie Valley geothermal field range from 0.70 to 0.76 Ra, are among the highest values in the valley, and indicate that _7.5% of the total helium is derived from the mantle. A lack of recent volcanics or other potential sources requires flow

247

Field-based tests of geochemical modeling codes using New Zealand hydrothermal systems  

DOE Green Energy (OSTI)

Hydrothermal systems in the Taupo Volcanic Zone, North Island, New Zealand are being used as field-based modeling exercises for the EQ3/6 geochemical modeling code package. Comparisons of the observed state and evolution of the hydrothermal systems with predictions of fluid-solid equilibria made using geochemical modeling codes will determine how the codes can be used to predict the chemical and mineralogical response of the environment to nuclear waste emplacement. Field-based exercises allow us to test the models on time scales unattainable in the laboratory. Preliminary predictions of mineral assemblages in equilibrium with fluids sampled from wells in the Wairakei and Kawerau geothermal field suggest that affinity-temperature diagrams must be used in conjunction with EQ6 to minimize the effect of uncertainties in thermodynamic and kinetic data on code predictions.

Bruton, C.J.; Glassley, W.E.; Bourcier, W.L.

1994-06-01T23:59:59.000Z

248

Volcanology and volcanic activity with a primary focus on potential hazard impacts for the Hawaii geothermal project  

DOE Green Energy (OSTI)

This annotated bibliography reviews published references about potential volcanic hazards on the Island of Hawaii that are pertinent to drilling and operating geothermal wells. The first two sections of this annotated bibliography list the most important publications that describe eruptions of Kilauea volcano, with special emphasis on activity in and near the designated geothermal subzones. References about historic eruptions from Mauna Loa`s northeast rift zone, as well as the most recent activity on the southern flank of dormant Mauna Kea, adjacent to the Humu`ula Saddle are described. The last section of this annotated bibliography lists the most important publications that describe and analyze deformations of the surface of Kilauea and Mauna Loa volcanoes.

Moore, R.B. [Federal Center, Denver, CO (United States); Delaney, P.T. [2255 North Gemini Drive, Flagstaff, AZ (United States); Kauahikaua, J.P. [Geological Survey, Hawaii National Park, HI (United States). Hawaiian Volcano Observatory

1993-10-01T23:59:59.000Z

249

Location, age, and rock type of volcanic rocks younger than 5 million years in Arizona and New Mexico  

DOE Green Energy (OSTI)

As part of the assessment of the Hot Dry Rock geothermal energy potential of Arizona and New Mexico, a compilation of the locations and ages of volcanic rocks less than 5 Myr was made. The locations of those rocks less than 3 Myr are shown on a map of the region. Because the compiled information has many uses in addition to geothermal exploration, the entire compilation is presented as a tabulation. The table is organized first by state and secondly by latitude and longitude within each state. Rock type, age and error, method of dating, and original reference are also given. The K-Ar dates have not been recalculated using the most recent decay constants for /sup 40/K. A few references gave only verbal descriptions of sample location; these locations were converted to approximate latitude and longitude.

Aldrich, M.J. Jr.; Laughlin, A.W.

1981-04-01T23:59:59.000Z

250

Laboratory and field-based instrumentation developments and noble gas-stable isotope systematics of Rungwe Volcanic Province, Iceland and the Central Indian Ridge  

E-Print Network (OSTI)

E. (1986) Dissolved carbon dioxide in basaltic glasses:on degassing of carbon dioxide from Kilauea volcano.versus anthropogenic carbon dioxide. EOS. 92, 201202.

Barry, Peter Hagan; Barry, Peter Hagan

2012-01-01T23:59:59.000Z

251

Laboratory and field-based instrumentation developments and noble gas-stable isotope systematics of Rungwe Volcanic Province, Iceland and the Central Indian Ridge  

E-Print Network (OSTI)

2005 Neon. Radiogenic isotope geology. p. 303. ISBN 978-0-Geology journal homepage: www.elsevier.com/locate/chemgeo Helium and carbon isotopeosmium isotope evidence from Canary Island lavas. Geology

Barry, Peter Hagan; Barry, Peter Hagan

2012-01-01T23:59:59.000Z

252

1 String field theory  

E-Print Network (OSTI)

This elementary introduction to string field theory highlights the features and the limitations of this approach to quantum gravity as it is currently understood. String field theory is a formulation of string theory as a field theory in space-time with an infinite number of massive fields. Although existing constructions of string field theory require expanding around a fixed choice of space-time background, the theory is in principle background-independent, in the sense that different backgrounds can be realized as different field configurations in the theory. String field theory is the only string formalism developed so far which, in principle, has the potential to systematically address questions involving multiple asymptotically distinct string backgrounds. Thus, although it is not yet well defined as a quantum theory, string field theory may eventually be helpful for understanding questions related to cosmology in string theory. 1.1

W. Taylor

2006-01-01T23:59:59.000Z

253

BUFFERED WELL FIELD OUTLINES  

U.S. Energy Information Administration (EIA) Indexed Site

OIL & GAS FIELD OUTLINES FROM BUFFERED WELLS The VBA Code below builds oil & gas field boundary outlines (polygons) from buffered wells (points). Input well points layer must be a...

254

Far field acceleration  

SciTech Connect

Far fields are propagating electromagnetic waves far from their source, boundary surfaces, and free charges. The general principles governing the acceleration of charged particles by far fields are reviewed. A survey of proposed field configurations is given. The two most important schemes, Inverse Cerenkov acceleration and Inverse free electron laser acceleration, are discussed in detail.

Fernow, R.C.

1995-07-01T23:59:59.000Z

255

Magnetic field generator  

DOE Patents (OSTI)

A magnetic field generating device provides a useful magnetic field within a specific retgion, while keeping nearby surrounding regions virtually field free. By placing an appropriate current density along a flux line of the source, the stray field effects of the generator may be contained. One current carrying structure may support a truncated cosine distribution, and it may be surrounded by a current structure which follows a flux line that would occur in a full coaxial double cosine distribution. Strong magnetic fields may be generated and contained using superconducting cables to approximate required current surfaces.

Krienin, Frank (Shoreham, NY)

1990-01-01T23:59:59.000Z

256

Field trip guide to the Valles Caldera and its geothermal systems  

DOE Green Energy (OSTI)

This field trip guide has been compiled from extensive field trips led at Los Alamos National Laboratory during the past six years. The original version of this guide was designed to augment a workshop on the Valles Caldera for the Continental Scientific Drilling Program (CSDP). This workshop was held at Los Alamos, New Mexico, 5-7 October 1982. More stops were added to this guide to display the volcanic and geothermal features at the Valles Caldera. The trip covers about 90 miles (one way) and takes two days to complete; however, those who wish to compress the trip into one day are advised to use the designated stops listed in the Introduction. Valles Caldera and vicinity comprise both one of the most exciting geothermal areas in the United States and one of the best preserved Quaternary caldera complexes in the world.

Goff, F.E.; Bolivar, S.L.

1983-12-01T23:59:59.000Z

257

Briefing package for the Yucca Flat pre-emptive review, including overview, UZ model, SZ volcanics model and summary and conclusions sections  

Science Conference Proceedings (OSTI)

Much progress has been made in the last several years in modeling radionuclide transport from tests conducted both in the unsaturated zone and saturated volcanic rocks of Yucca Flat, Nevada. The presentations to the DOE NNSA pre-emptive review panel contained herein document the progress to date, and discuss preliminary conclusions regarding the present and future extents of contamination resulting from past nuclear tests. The presentations also discuss possible strategies for addressing uncertainty in the model results.

Kwicklis, Edward Michael [Los Alamos National Laboratory; Keating, Elizabeth H [Los Alamos National Laboratory

2010-12-02T23:59:59.000Z

258

Evidence for a tektosilicate structure and dominance of Fe(III) over Fe(II) in silicic volcanic glasses of the Nevada Test Site  

SciTech Connect

More than 400 individual analyses have been obtained by electron microprobe for silicic glasses in 58 samples of tuff and lava from the Nevada Test Site (NTS). These samples comprise a wide range in chemical and petrographic types, including calc-alkaline and peralkaline rock types, and include most of the volcanic units of the NTS. Locations and brief petrographic descriptions are given for representative samples.

Warren, R.G.

1983-01-01T23:59:59.000Z

259

BUFFERED WELL FIELD OUTLINES  

U.S. Energy Information Administration (EIA) Indexed Site

OIL & GAS FIELD OUTLINES FROM BUFFERED WELLS OIL & GAS FIELD OUTLINES FROM BUFFERED WELLS The VBA Code below builds oil & gas field boundary outlines (polygons) from buffered wells (points). Input well points layer must be a feature class (FC) with the following attributes: Field_name Buffer distance (can be unique for each well to represent reservoirs with different drainage radii) ...see figure below. Copy the code into a new module. Inputs: In ArcMap, data frame named "Task 1" Well FC as first layer (layer 0). Output: Polygon feature class in same GDB as the well points FC, with one polygon field record (may be multiple polygon rings) per field_name. Overlapping buffers for the same field name are dissolved and unioned (see figure below). Adds an attribute PCTFEDLAND which can be populated using the VBA

260

Field emission electron source  

DOE Patents (OSTI)

A novel field emitter material, field emission electron source, and commercially feasible fabrication method is described. The inventive field emission electron source produces reliable electron currents of up to 400 mA/cm.sup.2 at 200 volts. The emitter is robust and the current it produces is not sensitive to variability of vacuum or the distance between the emitter tip and the cathode. The novel emitter has a sharp turn-on near 100 volts.

Zettl, Alexander Karlwalter (Kensington, CA); Cohen, Marvin Lou (Berkeley, CA)

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Abandoned Texas oil fields  

SciTech Connect

Data for Texas abandoned oil fields were primarily derived from two sources: (1) Texas Railroad Commission (TRRC), and (2) Dwight's ENERGYDATA. For purposes of this report, abandoned oil fields are defined as those fields that had no production during 1977. The TRRC OILMASTER computer tapes were used to identify these abandoned oil fields. The tapes also provided data on formation depth, gravity of oil production, location (both district and county), discovery date, and the cumulative production of the field since its discovery. In all, the computer tapes identified 9211 abandoned fields, most of which had less than 250,000 barrel cumulative production. This report focuses on the 676 abandoned onshore Texas oil fields that had cumulative production of over 250,000 barrels. The Dwight's ENERGYDATA computer tapes provided production histories for approximately two-thirds of the larger fields abandoned in 1966 and thereafter. Fields which ceased production prior to 1966 will show no production history nor abandonment date in this report. The Department of Energy hopes the general availability of these data will catalyze the private sector recovery of this unproduced resource.

1980-12-01T23:59:59.000Z

262

TYPES OF FIELD TESTING  

NLE Websites -- All DOE Office Websites (Extended Search)

TYPES OF FIELD TESTING Convincing proof of energy savings and performance in a specific building and occupant context If direct proof of savings is desired, the only feasible...

263

Outdoor science field trips.  

E-Print Network (OSTI)

??The purpose of this study was to assess the cognitive and affective values of an outdoor science field trip. Participants were 28 fifth grade students, (more)

Loyd, Kerrie Anne Therese

2004-01-01T23:59:59.000Z

264

Electromagnetic Lorenz Fields  

E-Print Network (OSTI)

Gauge transformations are potential transformations that leave only specific Maxwell fields invariant. To reveal more, I develop Lorenz field equations with full Maxwell form for nongauge, sans gauge function, transformations yielding mixed, superposed retarded and outgoing, potentials. The form invariant Lorenz condition is then a charge conservation equivalent. This allows me to define three transformation classes that screen for Lorenz relevance. The nongauge Lorentz conditions add polarization fields which support emergent, light-like rays that convey energy on charge conserving phase points. These localized rays escape discovery in modern Maxwell fields where the polarizations are suppressed by gauge transformations.

H. C. Potter

2008-10-07T23:59:59.000Z

265

Diamond fiber field emitters  

DOE Patents (OSTI)

A field emission electron emitter comprising an electrode formed of at least one diamond, diamond-like carbon or glassy carbon composite fiber, said composite fiber having a non-diamond core and a diamond, diamond-like carbon or glassy carbon coating on said non-diamond core, and electronic devices employing such a field emission electron emitter.

Blanchet-Fincher, Graciela B. (Wilmington, DE); Coates, Don M. (Santa Fe, NM); Devlin, David J. (Los Alamos, NM); Eaton, David F. (Wilmington, DE); Silzars, Aris K. (Landenburg, PA); Valone, Steven M. (Santa Fe, NM)

1996-01-01T23:59:59.000Z

266

Abandoned oil fields in Oklahoma  

SciTech Connect

Data are presented for approximately 165 abandoned oil fields in Oklahoma that have produced 10,000 or more barrels of oil prior to abandonment. The following information is provided for each field: county; DOE field code; field name; AAPG geologic province code; discovery date of field; year of last production, if known; discovery well operator; proven acreage; formation thickness; depth of field; gravity of oil production; calendar year; yearly field oil production; yearly field gas production; cumulative oil production; cumulative gas production; number abandoned fields in county; cumulative production of oil from fields; and cumulative production of gas from fields. (ATT)

Chism, J.

1983-08-01T23:59:59.000Z

267

The Momotombo Geothermal Field, Nicaragua: Exploration and development case history study  

DOE Green Energy (OSTI)

This case history discusses the exploration methods used at the Momotombo Geothermal Field in western Nicaragua, and evaluates their contributions to the development of the geothermal field models. Subsequent reservoir engineering has not been synthesized or evaluated. A geothermal exploration program was started in Nicaragua in 1966 to discover and delineate potential geothermal reservoirs in western Nicaragua. Exploration began at the Momotombo field in 1970 using geological, geochemical, and geophysical methods. A regional study of thermal manifestations was undertaken and the area on the southern flank of Volcan Momotombo was chosen for more detailed investigation. Subsequent exploration by various consultants produced a number of geotechnical reports on the geology, geophysics, and geochemistry of the field as well as describing production well drilling. Geological investigations at Momotombo included photogeology, field mapping, binocular microscope examination of cuttings, and drillhole correlations. Among the geophysical techniques used to investigate the field sub-structure were: Schlumberger and electromagnetic soundings, dipole mapping and audio-magnetotelluric surveys, gravity and magnetic measurements, frequency domain soundings, self-potential surveys, and subsurface temperature determinations. The geochemical program analyzed the thermal fluids of the surface and in the wells. This report presents the description and results of exploration methods used during the investigative stages of the Momotombo Geothermal Field. A conceptual model of the geothermal field was drawn from the information available at each exploration phase. The exploration methods have been evaluated with respect to their contributions to the understanding of the field and their utilization in planning further development. Our principal finding is that data developed at each stage were not sufficiently integrated to guide further work at the field, causing inefficient use of resources.

None

1982-07-01T23:59:59.000Z

268

Exploration of volcanic geothermal energy resources based on rheological techniques. First technical status report, April 1, 1978-June 30, 1978  

DOE Green Energy (OSTI)

Initial steps in a physical analytic and field study of the general applicability of the rheidity sensing techniques in the Oregon-Washington Cascade region are listed. (MHR)

Bodvarsson, G.

1978-01-01T23:59:59.000Z

269

THE GALACTIC MAGNETIC FIELD  

Science Conference Proceedings (OSTI)

With this Letter, we complete our model of the Galactic magnetic field (GMF), by using the WMAP7 22 GHz total synchrotron intensity map and our earlier results to obtain a 13-parameter model of the Galactic random field, and to determine the strength of the striated random field. In combination with our 22-parameter description of the regular GMF, we obtain a very good fit to more than 40,000 extragalactic Faraday rotation measures and the WMAP7 22 GHz polarized and total intensity synchrotron emission maps. The data call for a striated component to the random field whose orientation is aligned with the regular field, having zero mean and rms strength Almost-Equal-To 20% larger than the regular field. A noteworthy feature of the new model is that the regular field has a significant out-of-plane component, which had not been considered earlier. The new GMF model gives a much better description of the totality of data than previous models in the literature.

Jansson, Ronnie; Farrar, Glennys R. [Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, NY 10003 (United States)

2012-12-10T23:59:59.000Z

270

Remnant field detector  

DOE Patents (OSTI)

An apparatus for qualitatively detecting remnant magnetic fields in matched pairs of magnet cores is described. Equal magnitude and oppositely oriented magnetic flux is induced in the magnet cores by oppositely wound primary windings and current source. Identically wound secondary windings generate output voltages in response to the induced flux. The output voltages generated should be of equal magnitude and opposite polarity if there is no remnant field in the cores. The output voltage will be unequal which is detected if either core has a remnant field. 1 fig.

Visser, A.T.

1986-11-24T23:59:59.000Z

271

Remnant field detector  

DOE Patents (OSTI)

A method apparatus for qualitatively detecting remnant magnetic fields in matched pairs of magnet cores. Equal magnitude and oppositely oriented magnetic flux is induced in the magnet cores by oppositely wound primary windings and current source. Identically wound secondary windings generate output voltages in response to the induced flux. The output voltages generated should be of equal magnitude and opposite polarity if there is no remnant field in the cores. The output voltages will be unequal which is detected if either core has a remnant field.

Visser, Age T. (Geneva, IL)

1988-01-01T23:59:59.000Z

272

Analysis Driven Field Testing  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ANALYSIS DRIVEN FIELD TESTING ANALYSIS DRIVEN FIELD TESTING Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 MODELING DRIVEN FIELD TESTING Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 MODELING DRIVEN MEASUREMENTS Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 "Modeling without measuring lacks credibility. Measuring without modeling lacks generality." Ed Hancock

273

Upper mantle structure under western Saudi Arabia from Rayleigh wave tomography and the origin of Cenozoic uplift and volcanism on the Arabian Shield  

SciTech Connect

The shear velocity structure of the shallow upper mantle beneath the Arabian Shield has been modeled by inverting new Rayleigh wave phase velocity measurements between 45 and 140 s together with previously published Rayleigh wave group velocity measurement between 10 and 45 s. For measuring phase velocities, we applied a modified array method that minimizes the distortion of raypaths by lateral heterogeneity. The new shear velocity model shows a broad low velocity region in the lithospheric mantle across the Shield and a low velocity region at depths {ge} 150 km localized along the Red Sea coast and Makkah-Madinah-Nafud (MMN) volcanic line. The velocity reduction in the upper mantle corresponds to a temperature anomaly of {approx}250-330 K. These finding, in particular the region of continuous low velocities along the Red Sea and MMN volcanic line, do not support interpretations for the origin of the Cenozoic plateau uplift and volcanism on the Shield invoking two separate plumes. When combined with images of the 410 and 660 km discontinuities beneath the southern part of the Arabian Shield, body wave tomographic models, a S-wave polarization analysis, and SKS splitting results, our new model supports an interpretation invoking a thermal upwelling of warm mantle rock originating in the lower mantle under Africa that crosses through the transition zone beneath Ethiopia and moves to the north and northwest under the eastern margin of the Red Sea and the Arabian Shield. In this interpretation, the difference in mean elevation between the Platform and Shield can be attributed to isostatic uplift caused by heating of the lithospheric mantle under the Shield, with significantly higher region along the Red Sea possibly resulting from a combination of lithosphere thinning and dynamic uplift.

Park, Y; Nyblade, A; Rodgers, A; Al-Amri, A

2007-11-09T23:59:59.000Z

274

Field Operations Program  

NLE Websites -- All DOE Office Websites (Extended Search)

SUMMARY This report summarizes the Accelerated Reliability testing of five lead-acid battery- equipped Chevrolet S-10 electric vehicles by the U.S. Department of Energy's Field...

275

Fields in Circle  

Science Conference Proceedings (OSTI)

... Field circled in red shown to the right. ... roughly to the blue circle in the tool on the left. ... Spreadsheet Tool, open a spreadsheet as a tab-delimited text ...

276

Dangerous electromagnetic fields?  

NLE Websites -- All DOE Office Websites (Extended Search)

Dangerous electromagnetic fields? Dangerous electromagnetic fields? Name: Tommy T Joseph Location: N/A Country: N/A Date: N/A Question: Why are electromagnetic fields supposedly dangerous? Replies: I assume you are asking about power line frequency (60 Hz) fields, since they have been in the news lately. No one knows for sure that they are dangerous. There have been a few studies which seem to show an association between how close homes are to power lines, and the incidence of childhood cancer (mostly leukemia) in children living (or who have lived) in those homes. Other similar studies have not found such an association. In all the studies which have found an association, none has actually measured the fields. Studies which actually have measured the fields find no association. There is no known mechanism for 60 Hz fields to cause cancer. Furthermore, the classic "dose-response relationship," that is, the greater the dose, the greater the response, does not seem to work here. Many laboratory studies have found that 60 Hz fields have an effect on organisms under certain conditions, but none of the observed effects can be convincingly related to a hazard. The bottom line is, no one knows for sure. It is important to realize that it is impossible to prove that anything is completely safe. My personal opinion is that, if there is a risk, it must be very small, or it wouldn't be so hard to prove. I can supply some good unbiased references if you are interested.

277

Radiation Field Control Manual  

Science Conference Proceedings (OSTI)

The EPRI Radiation Management Program is dedicated to reducing nuclear power plant worker personnel exposure by developing practices and technologies to increase the radiation protection of the worker, and to implement methods to reduce radiation fields. The nuclear power industry has recently implemented the RP2020 Initiative to promote positive radiation protection trends. Control of radiation fields is crucial to one of the initiative goals of reducing exposure. This manual provides the current state ...

2004-12-16T23:59:59.000Z

278

Field Research Challenge Site  

DOE Green Energy (OSTI)

Previous experiments at the Rifle, Colorado Integrated Field Research Challenge (IFRC) site demonstrated that field-scale addition of acetate to groundwater reduced the ambient soluble uranium concentration. In this report, sediment samples collected before and after acetate field addition were used to assess the active microbes via {sup 13}C acetate stable isotope probing on 3 phases [coarse sand, fines (8-approximately 150 {micro}m), groundwater (0.2-8 {micro}m)] over a 24-day time frame. TRFLP results generally indicated a stronger signal in {sup 13}C-DNA in the 'fines' fraction compared to the sand and groundwater. Before the field-scale acetate addition, a Geobacter-like group primarily synthesized {sup 13}C-DNA in the groundwater phase, an alpha Proteobacterium primarily grew on the fines/sands, and an Acinetobacter sp. and Decholoromonas-like OTU utilized much of the {sup 13}C acetate in both groundwater and particle-associated phases. At the termination of the field-scale acetate addition, the Geobacter-like species was active on the solid phases rather than the groundwater, while the other bacterial groups had very reduced newly synthesized DNA signal. These findings will help to delineate the acetate utilization patterns of bacteria in the field and can lead to improved methods for stimulating distinct microbial populations in situ.

Kerkhof, L.; Williams, K.H.; Long, P.E.; McGuinness, L.

2011-02-21T23:59:59.000Z

279

Geothermal areas as analogues to chemical processes in the near-field and altered zone of the potential Yucca Mountain, Nevada repository  

SciTech Connect

The need to bound system performance of the potential Yucca Mountain repository for thousands of years after emplacement of high-level nuclear waste requires the use of computer codes. The use of such codes to produce reliable bounds over such long time periods must be tested using long-lived natural and historical systems as analogues. The geothermal systems of the Taupo Volcanic Zone (TVZ) in New Zealand were selected as the site most amenable to study. The rocks of the TVZ are silicic volcanics that are similar in composition to Yucca Mountain. The area has been subjected to temperatures of 25 to 300 C which have produced a variety of secondary minerals similar to those anticipated at Yucca Mountain. The availability of rocks, fluids and fabricated materials for sampling is excellent because of widespread exploitation of the systems for geothermal power. Current work has focused on testing the ability of the EQ3/6 code and thermodynamic data base to describe mineral-fluid relations at elevated temperatures. Welfare starting long-term dissolution/corrosion tests of rocks, minerals and manufactured materials in natural thermal features in order to compare laboratory rates with field-derived rates. Available field data on rates of silica precipitation from heated fluids have been analyzed and compared to laboratory rates. New sets of precipitation experiments are being planned. The microbially influenced degradation of concrete in the Broadlands-Ohaaki geothermal field is being characterized. The authors will continue to work on these projects in FY 1996 and expand to include the study of naturally occurring uranium and thorium series radionuclides, as a prelude to studying radionuclide migration in heated silicic volcanic rocks. 32 refs.

Bruton, C.J.; Glassley, W.E.; Meike, A.

1995-02-01T23:59:59.000Z

280

High-sulfur coals in the eastern Kentucky coal field  

Science Conference Proceedings (OSTI)

The Eastern Kentucky coal field is notable for relatively low-sulfur, [open quotes]compliance[close quotes] coals. Virtually all of the major coals in this area do have regions in which higher sulfur lithotypes are common, if not dominant, within the lithologic profile. Three Middle Pennsylvanian coals, each representing a major resource, exemplify this. The Clintwood coal bed is the stratigraphically lowest coal bed mined throughout the coal field. In Whitley County, the sulfur content increase from 0.6% at the base to nearly 12% in the top lithotype. Pyrite in the high-sulfur lithotype is a complex mixture of sub- to few-micron syngenetic forms and massive epigenetic growths. The stratigraphically higher Pond Creek coal bed is extensively mined in portions of the coal field. Although generally low in sulfur, in northern Pike and southern Martin counties the top one-third can have up to 6% sulfur. Uniformly low-sulfur profiles can occur within a few hundred meters of high-sulfur coal. Pyrite occurs as 10-50 [mu]m euhedra and coarser massive forms. In this case, sulfur distribution may have been controlled by sandstone channels in the overlying sediments. High-sulfur zones in the lower bench of the Fire Clay coal bed, the stratigraphically highest coal bed considered here, are more problematical. The lower bench, which is of highly variable thickness and quality, generally is overlain by a kaolinitic flint clay, the consequence of a volcanic ash fall into the peat swamp. In southern Perry and Letcher counties, a black, illite-chlorite clay directly overlies the lower bench. General lack of lateral continuity of lithotypes in the lower bench suggests that the precursor swamp consisted of discontinuous peat-forming environments that were spatially variable and regularly inundated by sediments. Some of the peat-forming areas may have been marshlike in character.

Hower, J.C.; Graham, U.M. (Univ. of Kentucky Center for Applied Energy Research, Lexington, KY (United States)); Eble, C.F. (Kentucky Geological Survey, Lexington, KY (United States))

1993-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Results of investigations at the Ahuachapan geothermal field, El Salvador  

Science Conference Proceedings (OSTI)

Well logging operations were performed in eight of the geothermal wells at Ahuachapan. High-temperature downhole instruments, including a temperature/rabbit, caliper, fluid velocity spinner/temperature/pressure (STP), and fluid sampler, were deployed in each well. The caliper tool was used primarily to determine if chemical deposits were present in well casings or liners and to investigate a suspected break in the casing in one well. STP logs were obtained from six of the eight wells at various flow rates ranging from 30 to 80 kg/s. A static STP log was also run with the wells shut-in to provide data to be used in the thermodynamic analysis of several production wells. The geochemical data obtained show a system configuration like that proposed by C. Laky and associates in 1989. Our data indicate recharge to the system from the volcanic highlands south of the field. Additionally, our data indicate encroachment of dilute fluids into deeper production zones because of overproduction. 17 refs., 50 figs., 10 tabs.

Dennis, B.; Goff, F.; Van Eeckhout, E.; Hanold, B. (comps.)

1990-04-01T23:59:59.000Z

282

Field reversed ion rings  

DOE Green Energy (OSTI)

In typical field-reversed ion ring experiments, an intense annular ion beam is injected across a plasma-filled magnetic cusp region into a neutral gas immersed in a ramped solenoidal magnetic field. Assuming the characteristic ionization time is much shorter than the long ({ital t}{approx_gt}2{pi}/{Omega}{sub {ital i}}) beam evolution time scale, we investigate the formation of an ion ring in the background plasma followed by field reversal, using a 21/2-D hybrid, PIC code FIRE, in which the beam and background ions are treated as particles and the electrons as a massless fluid. We show that beam bunching and trapping occurs downstream in a ramped magnetic field for an appropriate set of experimental parameters. We find that a compact ion ring is formed and a large field reversal {zeta}={delta}{ital B}/{ital B}{approx_gt}1 on axis develops. We also observe significant deceleration of the ring on reflection due to the transfer of its axial momentum to the background ions, which creates favorable trapping conditions. {copyright} {ital 1995 American Institute of Physics.}

Sudan, R.N.; Omelchenko, Y.A. [Laboratory of Plasma Studies, Cornell University, Ithaca, New York 14853 (United States)

1995-09-01T23:59:59.000Z

283

Pulsed hybrid field emitter  

DOE Patents (OSTI)

A hybrid emitter exploits the electric field created by a rapidly depoled ferroelectric material. Combining the emission properties of a planar thin film diamond emitter with a ferroelectric alleviates the present technological problems associated with both types of emitters and provides a robust, extremely long life, high current density cathode of the type required by emerging microwave power generation, accelerator technology and display applications. This new hybrid emitter is easy to fabricate and not susceptible to the same failures which plague microstructure field emitter technology. Local electrode geometries and electric field are determined independently from those for optimum transport and brightness preservation. Due to the large amount of surface charge created on the ferroelectric, the emitted electrons have significant energy, thus eliminating the requirement for specialized phosphors in emissive flat-panel displays. 11 figs.

Sampayan, S.E.

1998-03-03T23:59:59.000Z

284

Field Operations Program  

NLE Websites -- All DOE Office Websites (Extended Search)

688 688 May 1999 Field Operations Program Activities Status Report Fiscal Years 1997 through mid-1999 J. E. Francfort D. V. O'Hara L. A. Slezak DOE/ID-10688 Field Operations Program Activities Status Report Fiscal Years 1997 through mid-1999 J. E. Francfort 1 D. V. O'Hara 2 L. A. Slezak 2 Published May 1999 Idaho National Engineering and Environmental Laboratory Automotive Systems and Technology Department Lockheed Martin Idaho Technologies Company Idaho Falls, Idaho 83415 Prepared for the U.S. Department of Energy Idaho Operations Office 1 INEEL/Lockheed Martin Idaho Technologies Co. 2 U.S. Department of Energy iii EXECUTIVE SUMMARY The Field Operations Program is an electric vehicle testing and evaluation program sponsored by U.S. Department of Energy and managed by the Idaho National Engineering and Environmental

285

Pulsed hybrid field emitter  

SciTech Connect

A hybrid emitter exploits the electric field created by a rapidly depoled ferroelectric material. Combining the emission properties of a planar thin film diamond emitter with a ferroelectric alleviates the present technological problems associated with both types of emitters and provides a robust, extremely long life, high current density cathode of the type required by emerging microwave power generation, accelerator technology and display applications. This new hybrid emitter is easy to fabricate and not susceptible to the same failures which plague microstructure field emitter technology. Local electrode geometries and electric field are determined independently from those for optimum transport and brightness preservation. Due to the large amount of surface charge created on the ferroelectric, the emitted electrons have significant energy, thus eliminating the requirement for specialized phosphors in emissive flat-panel displays.

Sampayan, Stephen E. (Manteca, CA)

1998-01-01T23:59:59.000Z

286

Microbial field pilot study  

SciTech Connect

A multi-well microbially enhanced oil recovery field pilot has been performed in the Southeast Vassar Vertz Sand Unit in Payne County, Oklahoma. The primary emphasis of the experiment was preferential plugging of high permeability zones for the purpose of improving waterflood sweep efficiency. Studies were performed to determine reservoir chemistry, ecology, and indigenous bacteria populations. Growth experiments were used to select a nutrient system compatible with the reservoir that encouraged growth of a group of indigenous nitrate-using bacteria and inhibit growth of sulfate-reducing bacteria. A specific field pilot area behind an active line drive waterflood was selected. Surface facilities were designed and installed. Injection protocols of bulk nutrient materials were prepared to facilitate uniform distribution of nutrients within the pilot area. By the end of December, 1991, 82.5 tons (75.0 tonnes) of nutrients had been injected in the field. A tracer test identified significant heterogeneity in the SEVVSU and made it necessary to monitor additional production wells in the field. The tracer tests and changes in production behavior indicate the additional production wells monitored during the field trial were also affected. Eighty two and one half barrels (13.1 m[sup 3]) of tertiary oil have been recovered. Microbial activity has increased CO[sub 2] content as indicated by increased alkalinity. A temporary rise in sulfide concentration was experienced. These indicate an active microbial community was generated in the field by the nutrient injection. Pilot area interwell pressure interference test results showed that significant permeability reduction occurred. The interwell permeabilities in the pilot area between the injector and the three pilot production wells were made more uniform which indicates a successful preferential plugging enhanced oil recovery project.

Knapp, R.M.; McInerney, M.J.; Menzie, D.E.; Coates, J.D.; Chisholm, J.L.

1993-05-01T23:59:59.000Z

287

Field Mapping At Dixie Valley Geothermal Field Area (Wesnousky...  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Dixie Valley Geothermal Field Area (Wesnousky, Et Al., 2003) Exploration Activity Details...

288

The solar magnetic field  

E-Print Network (OSTI)

The magnetic field of the Sun is the underlying cause of the many diverse phenomena combined under the heading of solar activity. Here we describe the magnetic field as it threads its way from the bottom of the convection zone, where it is built up by the solar dynamo, to the solar surface, where it manifests itself in the form of sunspots and faculae, and beyond into the outer solar atmosphere and, finally, into the heliosphere. On the way it, transports energy from the surface and the subsurface layers into the solar corona, where it heats the gas and accelerates the solar wind.

Solanki, Sami K; Schssler, Manfred; 10.1088/0034-4885/69/3/R02

2010-01-01T23:59:59.000Z

289

Corn Fields Shutting Down  

E-Print Network (OSTI)

Fields of corn around Indiana, especially early-planted ones, are in the process of shutting down for the season. While only 3 % of the states crop was estimated to be mature (i.e., kernel black layer) as of the week ending 31 Aug, 41 % of the crop was estimated to be at dent stage or beyond (Indiana Ag Stats Service, 2 Sep 2003). The onset of maturity is naturally accompanied by an eventual senescence of the entire solar harvesting machinery, but some fields appear to be shutting down prematurely and deserve to be monitored for potential stalk health issues prior to harvest (Nielsen, 2003). The short-term forecast for cool evening temperatures in the mid-50s or lower throughout much of the state the remainder of this week will further accelerate premature senescence of these stressed fields. Plant stresses contributing to the premature shutdown of some fields include: Root systems compromised by saturated soil conditions caused by early and midseason monsoon events. Drier than normal conditions throughout much of August, accompanied by stressful low to mid-90 F temperatures in the latter part of the month.

R. L. (bob Nielsen

2003-01-01T23:59:59.000Z

290

Light Field Appearance Manifolds  

E-Print Network (OSTI)

Abstract. Statistical shape and texture appearance models are powerful image representations, but previously had been restricted to 2D or 3D shapes with smooth surfaces and lambertian reflectance. In this paper we present a novel 3D appearance model using image-based rendering techniques, which can represent complex lighting conditions, structures, and surfaces. We construct a light field manifold capturing the multi-view appearance of an object class and extend the direct search algorithm of Cootes and Taylor to match new light fields or 2D images of an object to a point on this manifold. When matching to a 2D image the reconstructed light field can be used to render unseen views of the object. Our technique differs from previous view-based active appearance models in that model coefficients between views are explicitly linked, and that we do not model any pose variation within the shape model at a single view. It overcomes the limitations of polygonal based appearance models and uses light fields that are acquired in real-time. 1

Chris Mario Christoudias; Trevor Darrell

2004-01-01T23:59:59.000Z

291

Potential for CO2 Sequestration and Enhanced Coalbed Methane Production, Blue Creek Field, NW Black Warrior Basin, Alabama  

E-Print Network (OSTI)

Carbon dioxide (CO2) is a primary source of greenhouse gases. Injection of CO2 from power plants near coalbed reservoirs is a win-win method to reducing emissions of CO2 to the atmosphere. Limited studies have investigated CO2 sequestration and enhanced coalbed methane production in San Juan and Alberta basins, but reservoir modeling is needed to assess the potential of the Black Warrior basin. Alabama ranks 9th nationally in CO2 emissions from power plants; two electricity generation plants are adjacent to the Black Warrior coalbed methane fairway. This research project was a reservoir simulation study designed to evaluate the potential for CO2 sequestration and enhanced coalbed methane (ECBM) recovery in the Blue Creek Field of Black Warrior basin, Alabama. It considered the injection and production rate, the components of injected gas, coal dewatering, permeability anisotropy, various CO2 soak times, completion of multiple reservoir layers and pressure constraints at the injector and producer. The simulation study was based on a 5-spot well pattern 40-ac well spacing. Injection of 100 percent CO2 in coal seams resulted in average volumes of 0.57 Bcf of sequestered CO2 and average volumes of 0.2 Bcf of enhance methane production for the Mary Lee coal zone only, from an 80-acre 5-spot well pattern. For the entire Blue Creek field of the Black Warrior basin, if 100 percent CO2 is injected in the Pratt, Mary Lee and Black Creek coal zones, enhance methane resources recovered are estimated to be 0.3 Tcf, with a potential CO2sequestration capacity of 0.88 Tcf. The methane recovery factor is estimated to be 68.8 percent, if the three coal zones are completed but produced one by one. Approximately 700 wells may be needed in the field. For multi-layers completed wells, the permeability and pressure are important in determining the breakthrough time, methane produced and CO2 injected. Dewatering and soaking do not benefit the CO2 sequestration process but allow higher injection rates. Permeability anisotropy affects CO2 injection and enhanced methane recovery volumes of the field. I recommend a 5-spot pilot project with the maximum well BHP of 1,000 psi at the injector, minimum well BHP of 500 psi at the producer, maximum injection rate of 70 Mscf/D, and production rate of 35 Mscf/D. These technical results, with further economic evaluation, could generate significant projects for CO2 sequestration and enhance coalbed methane production in Blue Creek field, Black Warrior Basin, Alabama.

He, Ting

2009-12-01T23:59:59.000Z

292

Japanese refrigerators field testing  

SciTech Connect

Residential refrigerators consume the equivalent of 1700 megawatts (MW) of baseload power in the Bonneville Power Administration (BPA) service area. Japanese manufacturers have designed refrigerator units that appear more energy efficient than some currently available American models. This report summarizes preliminary findings from field testing of 12 refrigerators of Japanese manufacture to evaluate annual kilowatt hour (kWh) use during actual operation. The units have also undergone laboratory testing sponsored by BPA at ETL Testing Laboratories, Inc. in Cortland, New York. A final report of the project -- due at the end of 1989 -- will correlate in detail the results of field and laboratory tests in comparison to performance ratings determined by the manufacturer.

Lou, A.T.

1989-03-01T23:59:59.000Z

293

Japanese Refrigerators Field Testing.  

SciTech Connect

Residential refrigerators consume the equivalent of 1700 megawatts (MW) of baseload power in the Bonneville Power Administration (BPA) service area. Japanese manufacturers have designed refrigerator units that appear more energy efficient than some currently available American models. This report summarizes preliminary findings from field testing of 12 refrigerators of Japanese manufacture to evaluate annual kilowatt hour (kWh) use during actual operation. The units have also undergone laboratory testing sponsored by BPA at ETL Testing Laboratories, Inc. in Cortland, New York. A final report of the project -- due at the end of 1989 -- will correlate in detail the results of field and laboratory tests in comparison to performance ratings determined by the manufacturer.

Lou, Albert T.

1989-03-01T23:59:59.000Z

294

Field Force Data Visualization  

Science Conference Proceedings (OSTI)

This report describes the development of a prototype data visualization app for utility workers. By using commercially available tablet technology, open standards, and open source software, utilities may be able to improve data capabilities of deployed field crews with modest investment in technology.BackgroundUtilities have been investing heavily in communications and information technology (IT) infrastructure in the past several years. While strides are being ...

2012-11-21T23:59:59.000Z

295

Ca rlsbad Field Office  

NLE Websites -- All DOE Office Websites (Extended Search)

En ergy En ergy Ca rlsbad Field Office P. O . Box 3090 Carlsbad , New Mexico 88221 AUG 2 9 2013 Mr. John E. Kieling , Chief Hazardous Waste Bureau New Mexico Environment Department 2905 Rodeo Park Drive East, Building 1 Santa Fe, New Mexico 87505-6303 Subject: Notification of Class 1 Permit Modification to the Waste Isolation Pilot Plant Hazardous Waste Facility Permit Number: NM4890139088-TSDF

296

Microbial field pilot study  

Science Conference Proceedings (OSTI)

The objective of this project is to perform a microbial enhanced oil recovery field pilot in the Southeast Vassar Vertz Sand Unit (SEVVSU) in Payne County, Oklahoma. Indigenous, anaerobic, nitrate reducing bacteria will be stimulated to selectively plug flow paths which have been referentially swept by a prior waterflood. This will force future flood water to invade bypassed regions of the reservoir and increase sweep efficiency. This report covers progress made during the second year, January 1, 1990 to December 31, 1990, of the Microbial Field Pilot Study project. Information on reservoir ecology, surface facilities design, operation of the unit, core experiments, modeling of microbial processes, and reservoir characterization and simulation are presented in the report. To better understand the ecology of the target reservoir, additional analyses of the fluids which support bacteriological growth and the microbiology of the reservoir were performed. The results of the produced and injected water analysis show increasing sulfide concentrations with respect to time. In March of 1990 Mesa Limited Partnership sold their interest in the SEVVSU to Sullivan and Company. In April, Sullivan and Company assumed operation of the field. The facilities for the field operation of the pilot were refined and implementation was begun. Core flood experiments conducted during the last year were used to help define possible mechanisms involved in microbial enhanced oil recovery. The experiments were performed at SEVVSU temperature using fluids and inoculum from the unit. The model described in last year`s report was further validated using results from a core flood experiment. The model was able to simulate the results of one of the core flood experiments with good quality.

Knapp, R.M.; McInerney, M.J.; Menzie, D.E.; Chisholm, J.L.

1992-03-01T23:59:59.000Z

297

Microbial field pilot study  

Science Conference Proceedings (OSTI)

The objective of this project is to perform a microbial enhanced oil recovery field pilot in the Southeast Vassar Vertz Sand Unit (SEVVSU) in Payne County, Oklahoma. Indigenous, anaerobic, nitrate reducing bacteria will be stimulated to selectively plug flow paths which have been referentially swept by a prior waterflood. This will force future flood water to invade bypassed regions of the reservoir and increase sweep efficiency. This report covers progress made during the second year, January 1, 1990 to December 31, 1990, of the Microbial Field Pilot Study project. Information on reservoir ecology, surface facilities design, operation of the unit, core experiments, modeling of microbial processes, and reservoir characterization and simulation are presented in the report. To better understand the ecology of the target reservoir, additional analyses of the fluids which support bacteriological growth and the microbiology of the reservoir were performed. The results of the produced and injected water analysis show increasing sulfide concentrations with respect to time. In March of 1990 Mesa Limited Partnership sold their interest in the SEVVSU to Sullivan and Company. In April, Sullivan and Company assumed operation of the field. The facilities for the field operation of the pilot were refined and implementation was begun. Core flood experiments conducted during the last year were used to help define possible mechanisms involved in microbial enhanced oil recovery. The experiments were performed at SEVVSU temperature using fluids and inoculum from the unit. The model described in last year's report was further validated using results from a core flood experiment. The model was able to simulate the results of one of the core flood experiments with good quality.

Knapp, R.M.; McInerney, M.J.; Menzie, D.E.; Chisholm, J.L.

1992-03-01T23:59:59.000Z

298

Field Guide: Coatings Assessment  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) has numerous products to help plant personnel meet the challenges of working with aging systems, structures, and components, but none that comprehensively address protective coatings and linings. This field guide provides a compilation of protective coating and lining information in a form that allows the user to have a ready reference available during condition assessment of the various protective coatings and linings used in the plant.

2012-05-14T23:59:59.000Z

299

Warped Conformal Field Theory  

E-Print Network (OSTI)

We study field theories in two spacetime dimensions invariant under a chiral scaling symmetry that acts only on right-movers. The local symmetries include one copy of the Virasoro algebra and a U(1) current algebra. This differs from the 2d conformal group, but in some respects is equally powerful in constraining the theory. In particular, the symmetries on a torus lead to modular covariance of the partition function, which is used to derive a universal formula for the asymptotic density of states. For an application we turn to the holographic description of black holes in quantum gravity, motivated by the fact that the symmetries in the near horizon geometry of any extremal black hole are identical to those of a 2d field theory with chiral scaling. We consider two examples: black holes in warped AdS_3 in topologically massive gravity, and in string theory. In both cases, the density of states in the 2d field theory reproduces the Bekenstein-Hawking entropy of black holes in the gravity theory.

Detournay, Stephane; Hofman, Diego M

2012-01-01T23:59:59.000Z

300

Warped Conformal Field Theory  

E-Print Network (OSTI)

We study field theories in two spacetime dimensions invariant under a chiral scaling symmetry that acts only on right-movers. The local symmetries include one copy of the Virasoro algebra and a U(1) current algebra. This differs from the 2d conformal group, but in some respects is equally powerful in constraining the theory. In particular, the symmetries on a torus lead to modular covariance of the partition function, which is used to derive a universal formula for the asymptotic density of states. For an application we turn to the holographic description of black holes in quantum gravity, motivated by the fact that the symmetries in the near horizon geometry of any extremal black hole are identical to those of a 2d field theory with chiral scaling. We consider two examples: black holes in warped AdS_3 in topologically massive gravity, and in string theory. In both cases, the density of states in the 2d field theory reproduces the Bekenstein-Hawking entropy of black holes in the gravity theory.

Stephane Detournay; Thomas Hartman; Diego M. Hofman

2012-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Age and location of volcanic centers less than or equal to 3. 0 m. y. old in Arizona, New Mexico, and the Trans-Peco area of West Texas  

DOE Green Energy (OSTI)

This map is one of a series of maps designed for hot dry rock geothermal assessment in Arizona, New Mexico, and the Trans-Peco area of the west Texas. The 3.0 m.y. cutoff age was selected because original heat has probably largely dissipated in older rocks. The location of volcanic centers is more important to geothermal resource assessment than the location of their associated volcanic rocks; however, ages have been determined for numerous flows far from their source. Therefore, the distribution of all volcanic rocks less than or equal to 3.0 m.y. old, for which there is at least one determined age, are shown. Location of the volcanic vents and rocks were taken from Luedke and Smith (1978). Ages were obtained from the original literature in all cases except for McKee and others (1974), Silberman and others (1976), Ulrich and McKee (1976), and Wolfe and McKee (1976). The abstract by McKee and others (1974) lists only the ages of various rocks they dated, so locations were taken from Luedke and Smith (1978). The dates of Silberman and others (1976), Ulrich and McKee (1976), and Wolfe and McKee (1976) are taken from written communications cited by Luedke and Smith (1978); therefore, both references are shown on the map for those ages.

Aldrich, M.J.; Laughlin, A.W.

1981-12-01T23:59:59.000Z

302

Near-field/altered-zone models report  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy is studying Yucca Mountain as the possible site for the first underground repository for permanent disposal of spent fuel from commercial nuclear reactors as well as for other types high-level nuclear waste. Emplacement of high-level radioactive waste, especially commercial spent nuclear fuel (CSNF), in Yucca Mountain will release a large amount of heat into the rock above and below the repository. The heating rate will decrease with time, creating a thermal pulse. Over a period of several thousand years, the rock temperature will rise initially, then drop when the production of decay heat falls below the rate at which heat escapes from the hot zone. Besides raising the rock temperature, much of this heat will vaporize water, which will then condense in cooler regions. The condensate is likely to form a gravity-driven heat pipe above the repository, creating the possibility that water may drain back onto the waste packages (WPs) or that it may ''shed'' through the pillars between emplacement drifts. The long-term importance of these effects has been investigated through the development, testing, and application of thermohydrologic (TH) models. Other effects, such coupled chemical and mechanical processes, may also influence the movement of water above, within, and below the emplacement drifts. A recent report on thermally driven coupled processes (Hardin and Chesnut, 1997) provides a qualitative assessment of the probable significance of these processes for the Yucca Mountain Site Characterization Project (YMSCP) and is the phenomenological framework for the present report. This report describes the conceptual and numerical models that have been developed to predict the thermal, mechanical, hydrologic, and chemical responses to the cumulative heat production of the potential host rock at Yucca Mountain. As proposed, the repository horizon will be situated within the Topopah Spring tuff, in the adjacent middle nonlithophysal and lower lithophysal units. These units are made up of moderately to densely welded, devitrified, fractured tuff. The rock's chemical composition is comparable to that of typical granite, but has textural features and mineralogical characteristics of large-scale, silicic volcanism. Because the repository horizon will be approximately 300 m below the ground surface and 200 m above the water table, the repository will be partially saturated. The welded tuff matrix in the host units is highly impermeable, but water and gas flow readily through fractures. The degree of fracturing in these units is highly variable, and the hydrologic significance of fracturing is an important aspect of site investigation. This report describes the characterization and modeling of a region around the potential repository--the altered zone--a region in which the temperature will be increased significantly by waste-generated heat. Numerical simulation has shown that, depending on the boundary conditions, rock properties, and repository design features incorporated in the models, the altered zone (AZ) may extend from the water table to the ground surface. This report also describes models of the near field, the region comprising the repository emplacement drifts and the surrounding rock, which are critical to the performance of engineered components. Investigations of near-field and altered-zone (NF/AZ) processes support the design of underground repository facilities and engineered barriers and also provide constraint data for probabilistic calculations of waste-isolation performance (i.e., performance assessment). The approach to investigation, which is an iterative process involving hypothesis testing and experimentation, has relied on conceptualizing engineered barriers and on performance analysis. This report is a collection, emphasizing conceptual and numerical models, of the recent results contributed from studies of NF/AZ processes and of quantitative measures of NF/AZ performance. The selection and presentation of contributions are intended to show the iterative development of understand

Hardin, E. L., LLNL

1998-03-01T23:59:59.000Z

303

Mantle helium and carbon isotopes in Separation Creek Geothermal Springs, Three Sisters area, Central Oregon: Evidence for renewed volcanic activity or a long term steady state system?  

DOE Green Energy (OSTI)

Cold bubbling springs in the Separation Creek area, the locus of current uplift at South Sister volcano show strong mantle signatures in helium and carbon isotopes and CO{sub 2}/{sup 3}He. This suggests the presence of fresh basaltic magma in the volcanic plumbing system. Currently there is no evidence to link this system directly to the uplift, which started in 1998. To the contrary, all geochemical evidence suggests that there is a long-lived geothermal system in the Separation Creek area, which has not significantly changed since the early 1990s. There was no archived helium and carbon data, so a definite conclusion regarding the strong mantle signature observed in these tracers cannot yet be drawn. There is a distinct discrepancy between the yearly magma supply required to explain the current uplift (0.006 km{sup 3}/yr) and that required to explain the discharge of CO{sub 2} from the system (0.0005 km{sup 3}/yr). This discrepancy may imply that the chemical signal associated with the increase in magma supply has not reached the surface yet. With respect to this the small changes observed at upper Mesa Creek require further attention, due to the recent volcanic vent in that area it may be the location were the chemical signal related to the uplift can most quickly reach the surface. Occurrence of such strong mantle signals in cold/diffuse geothermal systems suggests that these systems should not be ignored during volcano monitoring or geothermal evaluation studies. Although the surface-expression of these springs in terms of heat is minimal, the chemistry carries important information concerning the size and nature of the underlying high-temperature system and any changes taking place in it.

van Soest, M.C.; Kennedy, B.M.; Evans, W.C.; Mariner, R.H.

2002-04-30T23:59:59.000Z

304

Golden Field Office  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Department of Energy Department of Energy Golden Field Office 1617 Cole Boulevard Golden, Colorado 80401-3393 FINDING OF NO SIGNIFICANT IMPACT UNIVERSITY OF MAINE'S DEEPWATER OFFSHORE FLOATING WIND TURBINE TESTING AND DEMONSTRATION PROJECT - CASTINE DOE/EA-1792-S1 AGENCY: U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy ACTION: Finding of No Significant Impact (FONSI) SUMMARY: The U.S. Department of Energy (DOE) has completed a Supplemental Environmental Assessment (Supplemental EA) DOE/EA-1792-S1 for the University of Maine's (UMaine) Deepwater Offshore Floating Wind Turbine Testing and Demonstration Project - Castine. DOE prepared the Supplemental EA to evaluate the potential environmental impacts of

305

Quasi light fields: Extending the light field to coherent radiation  

E-Print Network (OSTI)

Imaging technologies such as dynamic viewpoint generation are engineered for incoherent radiation using the traditional light field, and for coherent radiation using electromagnetic field theory. We present a model of ...

Accardi, Anthony J.

306

Efficient thermal field computation in phase-field models  

Science Conference Proceedings (OSTI)

We solve the phase-field equations in two dimensions to simulate crystal growth in the low undercooling regime. The novelty is the use of a fast solver for the free space heat equation to compute the thermal field. This solver is based on the efficient ... Keywords: Crystal growth, Dendritic solidification, Diffusion equation, Fast solvers, Integral representation, Phase-field, Unbounded domain

Jing-Rebecca Li; Donna Calhoun; Lucien Brush

2009-12-01T23:59:59.000Z

307

Electric Field Reversal in Sprite Electric Field Signature  

Science Conference Proceedings (OSTI)

In measurements of the electric field associated with the current of a sprite 450 km from ground-based field sensors, it was observed that the sign of the electric field was positive when positive charge was lowered from the ionosphere. A recent ...

Richard G. Sonnenfeld; William W. Hager

2013-05-01T23:59:59.000Z

308

Electric Fields in a Tokamak  

E-Print Network (OSTI)

A self-consistent analysis of the electric fields in a tokamak yields the result that the poloidal and radial electrostatic fields must vanish for a toroidally symmetric equilibrium.

Johnson, Robert W

2008-01-01T23:59:59.000Z

309

Wavelets and Field Forecast Verification  

Science Conference Proceedings (OSTI)

Current field forecast verification measures are inadequate, primarily because they compress the comparison between two complex spatial field processes into one number. Discrete wavelet transforms (DWTs) applied to analysis and contemporaneous ...

William M. Briggs; Richard A. Levine

1997-06-01T23:59:59.000Z

310

Golden Field Office  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1617 Cole Boulevard Golden , Colorado 80401-3393 DOE/EA-1791 FINDING OF NO SIGNIFICANT IMPACT UNIVERSITY OF MINNESOTA WIND ENERGY RESEARCH CONSORTIllM PROJECT AGENCY: U.S. Department of Energy, Golden Field Office ACTION : Finding of No Significant Impact (FONSI) SUMMARY: The U. S. Department of Energy (DOE) is proposing to authorize the expenditure of Federal funding by the University of Minnesota to design, permit, and construct a wind turbine research facility I. This funding has been appropriated under the American Recovery and Reinvestment Act of2009. The University would use the funding to install a wind turbine research facility at its University of Minnesota Outreach Research and Education (UMore) Park in Rosemount, Minnesota. The proposed research facility would consist of a 2.5-megawatt-

311

Golden Field Office  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FINDING OF NO SIGNIFICANT IMPACT FINDING OF NO SIGNIFICANT IMPACT MONARCH WARREN COUNTY WIND TURBINE PROJECT LENOX TOWNSIDP, WARREN COUNTY, IL AGENCY: U.S. Department of Energy (DOE), Golden Field Office ACTION: Finding orNo Significant Impact (FONS!) DOEIEA-JSOO SUMMARY: The U.S. Department of Energy (DOE) provided Federal funding appropriated under the American Reinvestment and Recovery Act 0(2009 to the Illinois Department ofComrnerce and Econom ic Opportunity (DeEO) under the State Energy Program (SEP). DeEO proposes to provide approximately $5 million of its SEP funds to Monarch Wind Power (MWP) for the Monarch Warren County Wind Turbine Project (MWTP). DOE's Proposed Action is to authorize the expenditure of Federal funding under State Energy Program to design, permit, and construct

312

ARM - Field Campaigns  

NLE Websites -- All DOE Office Websites (Extended Search)

alpacas clouds-anvil german-scene instrumentfield pye-night racoro-inst rhubc-layout snowy-site twpice-ship walter-annemarie alpacas clouds-anvil german-scene instrumentfield pye-night racoro-inst rhubc-layout snowy-site twpice-ship walter-annemarie How Do I Propose a Campaign? First, review the guidelines for submitting proposals. Next, submit a preproposal; a short summary of the proposed campaign. Wait for a response from the Infrastructure Management Board (IMB) and/or ARM Science Board. A full proposal or science plan, may be requested. Decision is made-now what is expected? ARM Climate Research Facility users regularly conduct field campaigns to augment routine data acquisitions and to test and validate new instruments. Announcements 13 Dec 2013 Now accepting proposals for use of an AMF, AAF, or augment observations at one of our fixed sites. Smaller campaigns in FY2014 and FY2015 can also be

313

Golden Field Office  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

80401 -3393 DOEIEA-1818 80401 -3393 DOEIEA-1818 FINDING OF NO SIGNIFICANT IMPACT PETTISVILLE WIND ENERGY PROJECT AGENCY: U.S . Department of Energy, Golden Field Office ACTION: Finding of No Significant Impact (FONSI) SUMMARY: The U.S. Department of Energy (DOE) provided Federal funding to the Ohio Department of Development (0000) under the State Energy Program (SEP). 0000 proposes to provide $1 ,225 ,000 of its SEP funds to the Pettisvil Ie Local Schools (Pettisville) for the Pettisville Local Schools Wind Energy Project (Wind Energy Project). DOE' s Proposed Action is to authorize the expenditure of Federal funding under State Energy Program to design, permit, and construct the Pettisville Wind Energy Project, a 750-kilowatt wind turbine at the Pettisville Pre-Kindergarten through Twelfth Grade School located at

314

Diamond-graphite field emitters  

DOE Patents (OSTI)

A field emission electron emitter comprising an electrode of diamond and a conductive carbon, e.g., graphite, is provided.

Valone, Steven M. (Santa Fe, NM)

1997-01-01T23:59:59.000Z

315

Direct drive field actuator motors  

DOE Patents (OSTI)

A positive-drive field actuator motor is described which includes a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately. 62 figs.

Grahn, A.R.

1998-03-10T23:59:59.000Z

316

Revitalizing an old oil field  

Science Conference Proceedings (OSTI)

Redevelopment of the Olney oil field in Illinois is described. First discovered in 1936, production peaked in 1941 when over 30,000 bopd were produced. In 1970, 600 wells in the Olney field pumped only 4000 bpd. Since the decontrol of crude oil prices, a redevelopment project has begun in the field. The project includes well stimulation techniques plus newly drilled or deepened wells. Present production in the Olney field has reached 5000 bopd.

Ortiz, S.

1981-12-01T23:59:59.000Z

317

Magnetic-field-dosimetry system  

DOE Patents (OSTI)

A device is provided for measuring the magnetic field dose and peak field exposure. The device includes three Hall-effect sensors all perpendicular to each other, sensing the three dimensional magnetic field and associated electronics for data storage, calculating, retrieving and display.

Lemon, D.K.; Skorpik, J.R.; Eick, J.L.

1981-01-21T23:59:59.000Z

318

Low field magnetic resonance imaging  

DOE Patents (OSTI)

A method and system of magnetic resonance imaging does not need a large homogenous field to truncate a gradient field. Spatial information is encoded into the spin magnetization by allowing the magnetization to evolve in a non-truncated gradient field and inducing a set of 180 degree rotations prior to signal acquisition.

Pines, Alexander (Berkeley, CA); Sakellariou, Dimitrios (Billancourt, FR); Meriles, Carlos A. (Fort Lee, NJ); Trabesinger, Andreas H. (London, GB)

2010-07-13T23:59:59.000Z

319

Residential Transient Magnetic Field Research  

Science Conference Proceedings (OSTI)

Residential populations are exposed, in some measure, to transient magnetic fields. Such fields result from virtually all electric and electronic switching operations that may occur within the residence or external to the residence. This report presents the first phase of a study to better characterize these fields and, ultimately, describe their relationship to utility wiring configurations.

1994-03-01T23:59:59.000Z

320

Anomalous shear wave attenuation in the shallow crust beneath...  

Open Energy Info (EERE)

the Coso volcanic field, and are coincident with the epicentral locations of recent earthquake swarms. No anomalous attenuation is seen beneath the Coso volcanic field above about...

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Field practice internship final report  

SciTech Connect

This field practice internship final report gives an overview of the field practice, which was completed at the Oak Ridge Y-12 Plant, Martin Marietta Energy Systems, Inc., Environmental Management Department, Oak Ridge, Tennessee. The field practice focused on the completion of the Superfund Amendments and Reauthorization Act (SARA) Title III, Emergency Planning and Community Right-to-Know Act Section 312, Tier II Report. The field practice internship was conducted on a full-time basis between December 13, 1993 through February 18, 1994. Sheila Poligone, Emergency Planning and Community Right-to-Know Act (EPCRA) Coordinator served as the field practice preceptor.

Foster, T.

1994-05-01T23:59:59.000Z

322

Field Evaluation of Windows  

NLE Websites -- All DOE Office Websites (Extended Search)

Evaluation of Windows Evaluation of Windows Last Updated: 10/20/2009 Various tools can be used to evaluate windows in the field. Unless a new window still has the NFRC label attached to it, it is nearly impossible to determine by sight what the thermal and optical performance of a window is. These tools can provide information, such as low-e coating, gap width and gas fill, that can be used to approximate the performance of a window. Solar gain and Low-e detector This device can be used to determine if a low-e coating is present in the window, what type of coating it is, and where it is located. The type of low-e coating will indicate the amount of solar gain that is admitted through the coating. Readings can be "low", "medium" or "high". The device will also indicate on which glass surface the low-e coating is in relation to the position of the device. Limitations: Only works on glass of 1/8" (3 mm) or thinner. Cost: around $350 from EDTM.com

323

Electronic field permeameter  

DOE Patents (OSTI)

For making rapid, non-destructive permeability measurements in the field, a portable minipermeameter of the kind having a manually-operated gas injection tip is provided with a microcomputer system which operates a flow controller to precisely regulate gas flow rate to a test sample, and reads a pressure sensor which senses the pressure across the test sample. The microcomputer system automatically turns on the gas supply at the start of each measurement, senses when a steady-state is reached, collects and records pressure and flow rate data, and shuts off the gas supply immediately after the measurement is completed. Preferably temperature is also sensed to correct for changes in gas viscosity. The microcomputer system may also provide automatic zero-point adjustment, sensor calibration, over-range sensing, and may select controllers, sensors, and set-points for obtaining the most precise measurements. Electronic sensors may provide increased accuracy and precision. Preferably one microcomputer is used for sensing instrument control and data collection, and a second microcomputer is used which is dedicated to recording and processing the data, selecting the sensors and set-points for obtaining the most precise measurements, and instructing the user how to set-up and operate the minipermeameter. To provide mass data collection and user-friendly operation, the second microcomputer is preferably a lap-type portable microcomputer having a non-volatile or battery-backed CMOS memory.

Chandler, Mark A. (Madison, WI); Goggin, David J. (Austin, TX); Horne, Patrick J. (Austin, TX); Kocurek, Gary G. (Roundrock, TX); Lake, Larry W. (Austin, TX)

1989-01-01T23:59:59.000Z

324

San Juan County, Utah: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

°, -109.7591675° °, -109.7591675° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.4634157,"lon":-109.7591675,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

325

San Juan County, New Mexico: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

107.905° 107.905° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.761667,"lon":-107.905,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

326

San Juan County, Washington: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

22.9602621° 22.9602621° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.6118035,"lon":-122.9602621,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

327

San Juan County, Colorado: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

7573704°, -107.71625° 7573704°, -107.71625° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.7573704,"lon":-107.71625,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

328

Accusation against Juan Domnguez de Mendoza for blasphemy (1667)  

E-Print Network (OSTI)

guardianes del conuento de sandia y otros tres del conventonces del conuto`` de sandia, y en este tiempo seestan[*do] en el pueblo de Sandia auiendo cumplido con la

Nostas, Alissa; Coll, Magdalena; Imhoff, Brian

2013-01-01T23:59:59.000Z

329

Juan Pablo (J.P.) Perez: J&P Organics  

E-Print Network (OSTI)

to do the rows. We need to put compost, get nutrients in thejust prepare it. Rabkin: Where are you getting your compost?Perez: Compost? Called Comgro, in Spreckels. Its certified

Rabkin, Sarah

2010-01-01T23:59:59.000Z

330

List of Publications (Not Complete Yet) Juan J. Alonso  

E-Print Network (OSTI)

for build- ing portable mesh-based PDE solvers. In In Proceedings of the 2011 ACM/IEEE Conference. Sharma. Predic- tion of main/secondary-air system flow interaction in a high-pressure turbine. AIAA-step derivative approximation. ACM Trans. Math. Softw., 29(3):245­262, September 2003 20. J. Yao, R. Davis, J. J

Alonso, Juan J.

331

Doctor-Computer Interface using Gestures Juan Wachs1  

E-Print Network (OSTI)

Informatics, Washington Hospital Center, 110 Irving Street, NW, Washington, DC, 20010, {feied are embedded in ActiveX controls which are communicated using messages and windows events. #12;2 Hand Tracking, and an attention window event is called. The spatio- temporal information and other attributes of the posture

Wachs, Juan

332

San Juan Fracture Characterization Project: Status and current results  

E-Print Network (OSTI)

3 s sweep, 10 sweeps/source Arch Rock #1 Single Well Surveyin Fractured Rock P-wave S-wave P-wave S-wave RIW HW sourceRock #1 VSP Acquisition Single Offset, 9-C VSP P- and S-Wave Vibroseis Sources

2001-01-01T23:59:59.000Z

333

San Juan Capistrano, California: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Capistrano, California: Energy Resources Capistrano, California: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 33.5016932°, -117.6625509° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.5016932,"lon":-117.6625509,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

334

Modeling of CBM production, CO{sub 2} injection, and tracer movement at a field CO{sub 2} sequestration site  

SciTech Connect

Sequestration of carbon dioxide in unmineable coal seams is a potential technology mainly because of the potential for simultaneous enhanced coalbed methane production (ECBM). Several pilot tests have been performed around the globe leading to mixed results. Numerous modeling efforts have been carried out successfully to model methane production and carbon dioxide (CO{sub 2}) injection. Sensitivity analyses and history matching along with several optimization tools were used to estimate reservoir properties and to investigate reservoir performance. Geological and geophysical techniques have also been used to characterize field sequestration sites and to inspect reservoir heterogeneity. The fate and movement of injected CO{sub 2} can be determined by using several monitoring techniques. Monitoring of perfluorocarbon (PFC) tracers is one of these monitoring technologies. As a part of this monitoring technique, a small fraction of a traceable fluid is added to the injection wellhead along with the CO{sub 2} stream at different times to monitor the timing and location of the breakthrough in nearby monitoring wells or offset production wells. A reservoir modeling study was performed to simulate a pilot sequestration site located in the San Juan coal basin of northern New Mexico. Several unknown reservoir properties at the field site were estimated by modeling the coal seam as a dual porosity formation and by history matching the methane production and CO{sub 2} injection. In addition to reservoir modeling of methane production and CO{sub 2} injection, tracer injection was modeled. Tracers serve as a surrogate for determining potential leakage of CO{sub 2}. The tracer was modeled as a non-reactive gas and was injected into the reservoir as a mixture along with CO{sub 2}. Geologic and geometric details of the field site, numerical modeling details of methane production, CO{sub 2} injection, and tracer injection are presented in this paper. Moreover, the numerical predictions of the tracer arrival times were compared with the measured field data. Results show that tracer modeling is useful in investigating movement of injected CO{sub 2} into the coal seam at the field site. Also, such new modeling techniques can be utilized to determine potential leakage pathways, and to investigate reservoir anisotropy and heterogeneity.

Siriwardane, Hema J.; Bowes, Benjamin D.; Bromhal, Grant S.; Gondle, Raj K.; Wells, Arthur W.; Strazisar, Brian R.

2012-07-01T23:59:59.000Z

335

Steam Field | Open Energy Information  

Open Energy Info (EERE)

Field Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Sanyal Temperature Classification: Steam Field Dictionary.png Steam Field: No definition has been provided for this term. Add a Definition Sanyal Temp Classification This temperature scheme was developed by Sanyal in 2005 at the request of DOE and GEA, as reported in Classification of Geothermal Systems: A Possible Scheme. Extremely Low Temperature Very Low Temperature Low Temperature Moderate Temperature High Temperature Ultra High Temperature Steam Field Steam field reservoirs are special cases where the fluid is predominantly found in a gas phase between 230°C to 240°C. "This special class of resource needs to be recognized, its uniqueness being the remarkably consistent initial temperature and pressure

336

Field Sampling | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Field Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Field Sampling Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Field Techniques Information Provided by Technique Lithology: Rock samples are used to define lithology. Field and lab analyses can be used to measure the chemical and isotopic constituents of rock samples. Stratigraphic/Structural: Can reveal relatively high permeability zones. Provides information about the time and environment which formed a particular geologic unit. Microscopic rock textures can be used to estimate the history of stress and strain, and/or faulting.

337

K Basins Field Verification Program  

SciTech Connect

The Field Verification Program establishes a uniform and systematic process to ensure that technical information depicted on selected engineering drawings accurately reflects the actual existing physical configuration. This document defines the Field Verification Program necessary to perform the field walkdown and inspection process that identifies the physical configuration of the systems required to support the mission objectives of K Basins. This program is intended to provide an accurate accounting of the actual field configuration by documenting the as-found information on a controlled drawing.

Booth, H.W.

1994-12-02T23:59:59.000Z

338

Magnetic response to applied electrostatic field in external magnetic field  

E-Print Network (OSTI)

We show, within QED and other possible nonlinear theories, that a static charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (constant and homogeneous) magnetic field in the vacuum. The magnetic moment is quadratic in the charge, depends on its size and is parallel to the external field, provided the charge distribution is at least cylindrically symmetric. This magneto-electric effect is a nonlinear response of the magnetized vacuum to an applied electrostatic field. Referring to a simple example of a spherically-symmetric applied field, the nonlinearly induced current and its magnetic field are found explicitly throughout the space, the pattern of lines of force is depicted, both inside and outside the charge, which resembles that of a standard solenoid of classical magnetostatics.

T. C. Adorno; D. M. Gitman; A. E. Shabad

2013-11-16T23:59:59.000Z

339

Conservation laws. Generation of physical fields. Principles of field theories  

E-Print Network (OSTI)

In the paper the role of conservation laws in evolutionary processes, which proceed in material systems (in material media) and lead to generation of physical fields, is shown using skew-symmetric differential forms. In present paper the skew-symmetric differential forms on deforming (nondifferentiable) manifolds were used in addition to exterior forms, which have differentiable manifolds as a basis. Such skew-symmetric forms (which were named evolutionary ones since they possess evolutionary properties), as well as the closed exterior forms, describe the conservation laws. But in contrast to exterior forms, which describe conservation laws for physical fields, the evolutionary forms correspond to conservation laws for material systems. The evolutionary forms possess an unique peculiarity, namely, the closed exterior forms are obtained from these forms. It is just this that enables one to describe the process of generation of physical fields, to disclose connection between physical fields and material systems and to resolve many problems of existing field theories.

L. I. Petrova

2007-04-19T23:59:59.000Z

340

Fast superconducting magnetic field switch  

DOE Patents (OSTI)

The superconducting magnetic switch or fast kicker magnet is employed with electron stream or a bunch of electrons to rapidly change the direction of flow of the electron stream or bunch of electrons. The apparatus employs a beam tube which is coated with a film of superconducting material. The tube is cooled to a temperature below the superconducting transition temperature and is subjected to a constant magnetic field which is produced by an external dc magnet. The magnetic field produced by the dc magnet is less than the critical field for the superconducting material, thus, creating a Meissner Effect condition. A controllable fast electromagnet is used to provide a magnetic field which supplements that of the dc magnet so that when the fast magnet is energized the combined magnetic field is now greater that the critical field and the superconducting material returns to its normal state allowing the magnetic field to penetrate the tube. This produces an internal field which effects the direction of motion and of the electron stream or electron bunch. The switch can also operate as a switching mechanism for charged particles.

Goren, Yehuda (Mountain View, CA); Mahale, Narayan K. (The Woodlands, TX)

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Fast superconducting magnetic field switch  

DOE Patents (OSTI)

The superconducting magnetic switch or fast kicker magnet is employed with an electron stream or a bunch of electrons to rapidly change the direction of flow of the electron stream or bunch of electrons. The apparatus employs a beam tube which is coated with a film of superconducting material. The tube is cooled to a temperature below the superconducting transition temperature and is subjected to a constant magnetic field which is produced by an external dc magnet. The magnetic field produced by the dc magnet is less than the critical field for the superconducting material, thus, creating a Meissner Effect condition. A controllable fast electromagnet is used to provide a magnetic field which supplements that of the dc magnet so that when the fast magnet is energized the combined magnetic field is now greater than the critical field and the superconducting material returns to its normal state allowing the magnetic field to penetrate the tube. This produces an internal field which effects the direction of motion and of the electron stream or electron bunch. The switch can also operate as a switching mechanism for charged particles. Magnetic switches and particularly fast kicker magnets are used in the accelerator industry to quickly deflect particle beams into and out of various transport lines, storage rings, dumps, and specifically to differentially route individual bunches of particles from a train of bunches which are injected or ejected from a given ring.

Goren, Y.; Mahale, N.K.

1995-12-31T23:59:59.000Z

342

Field observations and lessons learned  

SciTech Connect

This presentation outlines observations and lessons learned from the Megaports program. It provides: (1) details of field and technical observations collected during LANL field activities at ports around the world and details of observations collected during radiation detections system testing at Los Alamos National Laboratory; (2) provides suggestions for improvement and efficiency; and (3) discusses possible program execution changes for more effective operations.

Nielsen, Joh B [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

343

Field Techniques | Open Energy Information  

Open Energy Info (EERE)

Field Techniques Field Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Field Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Map surface geology and hydrothermal alteration. Rock samples are used to define lithology. Field and lab analyses can be used to measure the chemical and isotopic constituents of rock samples. Bulk and trace element analysis of rocks, minerals, and sediments. Identify and document surface geology and mineralogy. Rapid and unambiguous identification of unknown minerals.[1] Stratigraphic/Structural: Locates active faults in the area of interest. Map fault and fracture patterns, kinematic information. Can reveal relatively high permeability zones. Provides information about the time and environment which formed a particular geologic unit. Microscopic rock textures can be used to estimate the history of stress and strain, and/or faulting.

344

PYROTRON WITH TRANSLATIONAL CLOSURE FIELDS  

DOE Patents (OSTI)

Circuit means is described for effecting inward transla- ' tory motion of the intensified terminal reflector field regions of a magnetic mirror plasma containment field with a simultaneous intensification of the over-all field configuration. The circuit includes a segmented magnetic field generating solenoid and sequentially actuated switch means to consecutively short-circuit the solenoid segments and place charged capacitor banks in shunt with the segments in an appropriate correlated sequence such that electrical energy is transferred inwardly between adjacent segments from the opposite ends of the solenoid. The resulting magnetic field is effective in both radially and axially adiabatically compressing a plasma in a reaction chamber disposed concentrically within the solenoid. In addition, one half of the circuit may be employed to unidirectionally accelerate plasma. (AEC)

Hartwig, E.C.; Cummings, D.B.; Post, R.F.

1962-01-01T23:59:59.000Z

345

Low-magnetic-field magnetars  

E-Print Network (OSTI)

It is now widely accepted that soft gamma repeaters and anomalous X-ray pulsars are the observational manifestations of magnetars, i.e. sources powered by their own magnetic energy. This view was supported by the fact that these `magnetar candidates' exhibited, without exception, a surface dipole magnetic field (as inferred from the spin-down rate) in excess of the electron critical field (~4.4E+13 G). The recent discovery of fully-qualified magnetars, SGR 0418+5729 and Swift J1822.3-1606, with dipole magnetic field well in the range of ordinary radio pulsars posed a challenge to the standard picture, showing that a very strong field is not necessary for the onset of magnetar activity (chiefly bursts and outbursts). Here we summarize the observational status of the low-magnetic-field magnetars and discuss their properties in the context of the mainstream magnetar model and its main alternatives.

Turolla, R

2013-01-01T23:59:59.000Z

346

Compact orthogonal NMR field sensor  

DOE Patents (OSTI)

A Compact Orthogonal Field Sensor for emitting two orthogonal electro-magnetic fields in a common space. More particularly, a replacement inductor for existing NMR (Nuclear Magnetic Resonance) sensors to allow for NMR imaging. The Compact Orthogonal Field Sensor has a conductive coil and a central conductor electrically connected in series. The central conductor is at least partially surrounded by the coil. The coil and central conductor are electrically or electro-magnetically connected to a device having a means for producing or inducing a current through the coil and central conductor. The Compact Orthogonal Field Sensor can be used in NMR imaging applications to determine the position and the associated NMR spectrum of a sample within the electro-magnetic field of the central conductor.

Gerald, II, Rex E. (Brookfield, IL); Rathke, Jerome W. (Homer Glen, IL)

2009-02-03T23:59:59.000Z

347

Abandoned oil fields in Kansas and Nebraska  

SciTech Connect

Data on approximately 400 abandoned oil fields in Kansas and 90 abandoned oil fields in Nebraska are presented. The following information is obtained on each field: county; DOE field code; field name; AAPG geologic province code; discovery date; year of last production; discovery well operator; proven acreage; formation thickness; depth of field; API gravity; calendar year; yearly field oil production; yearly field gas production; cumulative oil production; cumulative gas production; number abandoned fields in county; cumulative production of oil from fields; and cumulative production of gas from fields. (DMC)

Not Available

1982-12-01T23:59:59.000Z

348

ARM - Field Campaign - Precision Gas Sampling (PGS) Validation Field  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsPrecision Gas Sampling (PGS) Validation Field Campaign govCampaignsPrecision Gas Sampling (PGS) Validation Field Campaign Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Precision Gas Sampling (PGS) Validation Field Campaign 2003.04.02 - 2003.09.02 Lead Scientist : Marc Fischer For data sets, see below. Description Ecosystem-atmosphere exchange of carbon, water, and energy varies with climate, soil, and land management, in ways 1) that influence the CO2 flux and planetary boundary layer CO2 concentration in ARM CART and 2) that we can model and predict. This activity repeated portable flux system measurements that we performed in spring 2002, by continuing measurements of the spatial heterogeneity of carbon, water, and energy fluxes in fields surrounding the ARM SGP Central Facility (CF).

349

ARM - Field Campaign - Remote Cloud Sensing (RCS) Field Evaluation  

NLE Websites -- All DOE Office Websites (Extended Search)

love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Remote Cloud Sensing (RCS) Field Evaluation 1994.04.01 - 1994.05.31 Lead Scientist :...

350

ARM - Field Campaign - Remote Cloud Sensing (RCS) Field Evaluation  

NLE Websites -- All DOE Office Websites (Extended Search)

love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Remote Cloud Sensing (RCS) Field Evaluation 1995.04.01 - 1995.05.31 Lead Scientist :...

351

Vector-field domain walls  

Science Conference Proceedings (OSTI)

We argue that spontaneous Lorentz violation may generally lead to metastable domain walls related to the simultaneous violation of some accompanying discrete symmetries. Remarkably, such domain-wall solutions exist for spacelike Lorentz violation and do not exist for the timelike violation. Because a preferred space direction is spontaneously induced, these domain walls have no planar symmetry and produce a peculiar static gravitational field at small distances, while their long-distance gravity appears the same as for regular scalar-field walls. Some possible applications of vector-field domain walls are briefly discussed.

Chkareuli, J. L. [E. Andronikashvili Institute of Physics, 0177 Tbilisi, Georgia (United States); I. Chavchavadze State University, 0162 Tbilisi (Georgia); Kobakhidze, Archil [E. Andronikashvili Institute of Physics, 0177 Tbilisi (Georgia); School of Physics, University of Melbourne, Victoria 3010 (Australia); Volkas, Raymond R. [School of Physics, University of Melbourne, Victoria 3010 (Australia)

2009-09-15T23:59:59.000Z

352

Measurements of magnetic field alignment  

Science Conference Proceedings (OSTI)

The procedure for installing Superconducting Super Collider (SSC) dipoles in their respective cryostats involves aligning the average direction of their field with the vertical to an accuracy of 0.5 mrad. The equipment developed for carrying on these measurements is described and the measurements performed on the first few prototypes SSC magnets are presented. The field angle as a function of position in these 16.6 m long magnets is a characteristic of the individual magnet with possible feedback information to its manufacturing procedure. A comparison of this vertical alignment characteristic with a magnetic field intensity (by NMR) characteristic for one of the prototypes is also presented. 5 refs., 7 figs.

Kuchnir, M.; Schmidt, E.E.

1987-11-06T23:59:59.000Z

353

Quantum field theory without divergences  

E-Print Network (OSTI)

It is shown that loop divergences emerging in the Green functions in quantum field theory originate from correspondence of the Green functions to {\\em unmeasurable} (and hence unphysical) quantities. This is because no physical quantity can be measured in a point, but in a region, the size of which is constrained by the resolution of measuring equipment. The incorporation of the resolution into the definition of quantum fields $\\phi(x)\\to\\phi^{(A)}(x)$ and appropriate change of Feynman rules results in finite values of the Green functions. The Euclidean $\\phi^4$-field theory is taken as an example.

Altaisky, M V

2010-01-01T23:59:59.000Z

354

Quantum field theory without divergences  

E-Print Network (OSTI)

It is shown that loop divergences emerging in the Green functions in quantum field theory originate from correspondence of the Green functions to {\\em unmeasurable} (and hence unphysical) quantities. This is because no physical quantity can be measured in a point, but in a region, the size of which is constrained by the resolution of measuring equipment. The incorporation of the resolution into the definition of quantum fields $\\phi(x)\\to\\phi^{(A)}(x)$ and appropriate change of Feynman rules results in finite values of the Green functions. The Euclidean $\\phi^4$-field theory is taken as an example.

M. V. Altaisky

2010-02-12T23:59:59.000Z

355

DECOVALEX-THMC Task D: Long-Term Permeability/Porosity Changes in the EDZ and Near Field due to THM and THC Processes in Volcanic and Crystaline-Bentonite Systems, Status Report October 2005  

E-Print Network (OSTI)

thermal conductivity and heat capacity close to the initialby increasing the volumetric heat capacity of the rock massT2. The increase in heat capacity is described by Equation (

Birkholzer, J.; Rutqvist, J.; Sonnenthal, E.; Barr, D.

2005-01-01T23:59:59.000Z

356

DECOVALEX-THMC Task D: Long-Term Permeability/Porosity Changes in the EDZ and Near Field due to THM and THC Processes in Volcanic and Crystaline-Bentonite Systems, Status Report October 2005  

E-Print Network (OSTI)

Power Reactor and Nuclear Fuel Development Corporation (Power Reactor and Nuclear Fuel Development Corporation (evaluation 1997/2. Swedish Nuclear Fuel and Waste Management

Birkholzer, J.; Rutqvist, J.; Sonnenthal, E.; Barr, D.

2005-01-01T23:59:59.000Z

357

DECOVALEX-THMC Task D: Long-Term Permeability/Porosity Changes in the EDZ and Near Field due to THM and THC Processes in Volcanic and Crystaline-Bentonite Systems, Status Report October 2005  

E-Print Network (OSTI)

Although convective heat transfer processes are importantmain processes considered in Task D are heat transfer, fluidmain processes considered in Task D are heat transfer, fluid

Birkholzer, J.; Rutqvist, J.; Sonnenthal, E.; Barr, D.

2005-01-01T23:59:59.000Z

358

Field ionization from carbon nanofibers  

E-Print Network (OSTI)

The Micro Gas Analyzer project aims to develop power-efficient, high resolution, high sensitivity, portable and real-time gas sensors. We developed a field ionizer array based on gated CNTs. Arrays of CNTs are used because ...

Adeoti, Bosun J

2008-01-01T23:59:59.000Z

359

Freedom Field | Open Energy Information  

Open Energy Info (EERE)

Field Field Jump to: navigation, search Logo: Freedom Field Name Freedom Field Address 3333 Kishwaukee Street Place Rockford, Illinois Zip 61109 Year founded 2009 Phone number 815-387-7570 Coordinates 42.2243753°, -89.0869292° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.2243753,"lon":-89.0869292,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

360

Correlation Models for Temperature Fields  

Science Conference Proceedings (OSTI)

This paper presents derivations of some analytical forms for spatial correlations of evolving random fields governed by a white-noise-driven damped diffusion equation that is the analog of autoregressive order 1 in time and autoregressive order 2 ...

Gerald R. North; Jue Wang; Marc G. Genton

2011-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Carlsbad Field Office - Fact Sheet  

NLE Websites -- All DOE Office Websites (Extended Search)

the nation's nuclear waste disposal problem Carlsbad Field Office The U.S. Department of Energy (DOE) created the Carlsbad Area Office in late 1993 to lead the nation's transuranic...

362

Quantum fields as gravitational sources  

E-Print Network (OSTI)

The practice of setting quantum fields as sources for classical general relativity is examined. Several conceptual problems are identified which invalidate apparently innocuous equations. Alternative ways to links classical general relativity with quantum theory using Bohm's theory are proposed.

Mark J Hadley

2008-08-13T23:59:59.000Z

363

Field Mapping | Open Energy Information  

Open Energy Info (EERE)

Field Mapping Field Mapping Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Field Mapping Details Activities (59) Areas (35) Regions (6) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Data Collection and Mapping Parent Exploration Technique: Data Collection and Mapping Information Provided by Technique Lithology: Map surface geology and hydrothermal alteration. Stratigraphic/Structural: Map fault and fracture patterns, kinematic information. Hydrological: Map surface manifestations of geothermal systems. Thermal: Map surface temperature. Cost Information Low-End Estimate (USD): 400.0040,000 centUSD 0.4 kUSD 4.0e-4 MUSD 4.0e-7 TUSD / hour Median Estimate (USD): 600.0060,000 centUSD

364

Radiative processes: Potentials or Fields?  

SciTech Connect

In this work we prove that the transition amplitudes of processes involving the emission of one or more real photons is gauge invariant through terms that are always proportional to the electromagnetic field tensor.

Moreno, Matias [Instituto de Fisica, Universidad Nacional Autonoma de Mexico, Mexico, D.F. 04510 (Mexico); Lopez Castro, Gabriel [Departamento de Fisica, Centro de Investigacion y Estudios Avanzados, Mexico, D.F. (Mexico)

2010-07-29T23:59:59.000Z

365

Invariants from classical field theory  

Science Conference Proceedings (OSTI)

We introduce a method that generates invariant functions from perturbative classical field theories depending on external parameters. By applying our methods to several field theories such as Abelian BF, Chern-Simons, and two-dimensional Yang-Mills theory, we obtain, respectively, the linking number for embedded submanifolds in compact varieties, the Gauss' and the second Milnor's invariant for links in S{sup 3}, and invariants under area-preserving diffeomorphisms for configurations of immersed planar curves.

Diaz, Rafael [Grupo de Fisica-Matematica, Universidad Experimental Politecnica de las Fuerzas Armadas, Caracas 1010 (Venezuela); Leal, Lorenzo [Centro de Fisica Teorica y Computacional, Universidad Central de Venezuela, Caracas 1041-A (Venezuela)

2008-06-15T23:59:59.000Z

366

Evolution of twisted magnetic fields  

SciTech Connect

The magnetic field of the solar corona evolves quasistatically in response to slowly changing photospheric boundary conditions. The magnetic topology is preserved by the low resistivity of the solar atmosphere. We show that a magnetic flux coordinate system simplifies the problem of calculating field evolution with invariant topology. As an example, we calculate the equilibrium of a thin magnetic flux tube with small twist per unit length.

Zweibel, E.G.; Boozer, A.H.

1985-02-01T23:59:59.000Z

367

Field Research in Bacterial Transport  

SciTech Connect

The objective of the final phase of this project is to incorporate new understanding and practical insights derived from interdisciplinary field studies by DOE and other agencies into a broader research framework to address DOE remediation problems. This effort will lend unique strength to Environmental Remediation Sciences Division (ERSD) strategic planning and offer real linkages to remediation problems faced in the field at DOE sites nationwide.

Wildung, Raymond E.

2006-06-01T23:59:59.000Z

368

Towards a quantum field theory of primitive string fields  

Science Conference Proceedings (OSTI)

We denote generating functions of massless even higher-spin fields 'primitive string fields' (PSF's). In an introduction we present the necessary definitions and derive propagators and currents of these PDF's on flat space. Their off-shell cubic interaction can be derived after all off-shell cubic interactions of triplets of higher-spin fields have become known. Then we discuss four-point functions of any quartet of PSF's. In subsequent sections we exploit the fact that higher-spin field theories in AdS{sub d+1} are determined by AdS/CFT correspondence from universality classes of critical systems in d-dimensional flat spaces. The O(N) invariant sectors of the O(N) vector models for 1 {=} 4, they are distinguished by their anomalous dimensions (in CFT{sub 3}) or by theirmass (in AdS{sub 4}). We sum over these multiplets and the spins to obtain 'string type fields', one for each such monomial.

Ruehl, W., E-mail: wue_ruehl@t-online.de [Technical University of Kaiserslautern, Department of Physics (Germany)

2012-10-15T23:59:59.000Z

369

ARM - Field Campaign - Precision Gas Sampling (PGS) Validation Field  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsPrecision Gas Sampling (PGS) Validation Field Campaign govCampaignsPrecision Gas Sampling (PGS) Validation Field Campaign Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Precision Gas Sampling (PGS) Validation Field Campaign 2006.01.01 - 2006.12.31 Lead Scientist : Marc Fischer For data sets, see below. Description Accurate prediction of the regional responses of CO2 flux to changing climate, land use, and management requires models that are parameterized and tested against measurements made in multiple land cover types and over seasonal to inter-annual time scales. In an extension of our earlier work on crop systems, we investigated the effects of burning on the cycles of carbon, water, and energy in an example of grazed land of the Southern Great Plains. In collaboration with Dr. Herman Mayeux, of the USDA Grazing

370

ARM - Field Campaign - Precision Gas Sampling (PGS) Validation Field  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsPrecision Gas Sampling (PGS) Validation Field Campaign govCampaignsPrecision Gas Sampling (PGS) Validation Field Campaign Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Precision Gas Sampling (PGS) Validation Field Campaign 2004.04.15 - 2004.12.15 Lead Scientist : Marc Fischer For data sets, see below. Description Accurate prediction of the regional responses of CO2 flux to changing climate, land use, and management requires models that are parameterized and tested against measurements made in multiple land cover types and over seasonal to inter-annual time scales. Models predicting fluxes for un-irrigated agriculture were posed with the challenge of characterizing the onset and severity of plant water stress. We conducted a study that quantified the spatial heterogeneity and temporal variations in land

371

Field geology of the northwest quarter of the Broken Top 15' quadrangle, Deschutes County, Oregon  

DOE Green Energy (OSTI)

The report is a compilation of geologic field observations and supporting laboratory data obtained during a study of the eastern slope of the High Cascade Range of Oregon, north of Broken Top volcano. General geologic relationships are summarized, then followed by lithologic descriptions, petrographic characteristics, and stratigraphic information, cross-indexed to tables of chemical analyses of pertinent rock units. The 7.5-minute N.W. Broken Top quadrange is bounded by 44/sup 0/07'30'' and 44/sup 0/15'00'' north latitude and by 121/sup 0/37'30'' and 121/sup 0/45'00'' west longitude, 6 km east of North and Middle Sister volcanoes and 35 km northwest of Bend. The quadrangle is covered by glacial till and calc-alkaline lavas, most of which originated on the adjacent slopes of the High Cascades. Basalt, basaltic andesite, andesite, and rhyodacite are represented in a variety of forms including lava flows, volcanic domes, cinder cones, and a welded ash-flow tuff.

Taylor, E.M.

1987-01-01T23:59:59.000Z

372

Diagenetic controls on reservoir quality, Matagorda Island 623 field, offshore Texas  

Science Conference Proceedings (OSTI)

Matagorda Island 623 field is a large gas accumulation in overpressured, lower Miocene Siphonina davisi deltaic sandstones. Production is from fine, moderately well sorted sublitharenites deposited in distributary-mouth bars and channels. Reservoir depth is 10,000-14,000 ft (3050-4275 m) and bottom-hole temperatures approach 275/sup 0/F (135/sup 0/C). Pay-sand porosities range from 15 to 35% and permeabilities range from 10 to 3000 md. Between 60 and 85% of the porosity is primary intergranular. Porosity preservation is dependent upon the following: (1) early formation of chlorite grain coats, (2) a stable mineralogic framework, (3) overpressuring, and (4) entry of gas into the reservoir. Chlorite coats form as much as 8% of the rock and originated from a chemical decomposition of volcanic rock fragments (VRF). These coats inhibited quartz cementation and retarded compaction related to pressure solution. Secondary porosity originated mainly from feldspar and VRF dissolution. Although calcite cement is locally common, evidence is lacking that calcite leaching formed significant porosity. Evidence against large-scale carbonate dissolution includes the following: (1) unaltered carbonate lithoclasts, (2) reworked Cretaceous foraminifers, (3) preservation of delicate chlorite crystal morphology, and (4) the absence of pitted or serrated surfaces on quartz overgrowths, which formed prior to calcite cementation.

Thayer, P.A.

1985-02-01T23:59:59.000Z

373

Coulomb field effect on plasma focusing and wake field acceleration  

SciTech Connect

It is shown that the fields generated by relativistic electron (positron) bunches moving in overdense cold plasma have two components -- wake and Coulomb. The existence of the Coulomb component is caused by the absence of the Debay screening of the charge moving in plasma with the velocity greater than the thermal velocity of the plasma electrons. It is shown that at some conditions the contribution of the Coulomb component to focusing and self-focusing of the electron (positron) bunches, and wake field generation could be essential. This conclusion is valid for different descriptions of cold plasma-relativistic electron bunch system.

Amatuni, A.Ts.; Elbakian, S.S.; Sekhpossian, E.V. [Yerevan Physics Inst. (Armenia)

1993-11-01T23:59:59.000Z

374

Electromagnetic fields in cased borehole  

DOE Green Energy (OSTI)

Borehole electromagnetic (EM) measurements, using fiberglass-cased boreholes, have proven useful in oil field reservoir characterization and process monitoring (Wilt et al., 1995). It has been presumed that these measurements would be impossible in steel-cased wells due to the very large EM attenuation and phase shifts. Recent laboratory and field studies have indicated that detection of EM signals through steel casing should be possible at low frequencies, and that these data provide a reasonable conductivity image at a useful scale. Thus, we see an increased application of this technique to mature oilfields, and an immediate extension to geothermal industry as well. Along with the field experiments numerical model studies have been carried out for analyzing the effect of steel casing to the EM fields. The model used to be an infinitely long uniform casing embedded in a homogeneous whole space. Nevertheless, the results indicated that the formation signal could be accurately recovered if the casing characteristics were independently known (Becker et al., 1998; Lee el al., 1998). Real steel-cased wells are much more complex than the simple laboratory models used in work to date. The purpose of this study is to develop efficient numerical methods for analyzing EM fields in realistic settings, and to evaluate the potential application of EM technologies to cross-borehole and single-hole environment for reservoir characterization and monitoring.

Lee, Ki Ha; Kim, Hee Joon; Uchida, Toshihiro

2001-07-20T23:59:59.000Z

375

Remote field eddy current inspection  

SciTech Connect

The Remote Field Eddy Current (RFEC) technique uses an internal probe to inspect conducting tubes nondestructively. A coaxial solenoidal exciter, energized with low frequency AC, and detector coils near the inside of the pipe wall are separated by about two pipe diameters to obtain through wall transmission and equal sensitivity to defects on the outside or inside of the pipe wall. Calculation methods are outlined and the voltage plane polar plot signal representation for defect measurement is described. Slit defect interactions in ferromagnetic and non-ferromagnetic tubes are discussed. Defect-induced anomalous fields are interpreted in terms of anomalous source eddy current and missing magnetization defect models. The use of computer animations to represent the time variations of high resolution field measurements and calculations is described.

Atherton, D.L. [Queen`s Univ., Kingston, Ontario (Canada). Dept. of Physics

1995-11-01T23:59:59.000Z

376

Air Showers and Geomagnetic Field  

E-Print Network (OSTI)

The influence of the geomagnetic field on the development of air showers is studied. The well known International Geomagnetic Reference Field was included in the AIRES air shower simulation program as an auxiliary tool to allow calculating very accurate estimations of the geomagnetic field given the geographic coordinates, altitude above sea level and date of a given event. Our simulations indicate that the geomagnetic deflections alter significantly some shower observables like, for example, the lateral distribution of muons in the case of events with large zenith angles (larger than 75 degrees). On the other hand, such alterations seem not to be important for smaller zenith angles. Global observables like total numbers of particles or longitudinal development parameters do not present appreciable dependences on the geomagnetic deflections for all the cases that were studied.

A. Cillis; S. J. Sciutto

1999-07-31T23:59:59.000Z

377

High Field Magnetic Resonance Facility  

NLE Websites -- All DOE Office Websites (Extended Search)

HFMRF Overview HFMRF Overview Section 2-3-1 High Field Magnetic Resonance Facility The High Field Magnetic Resonance Facility (HFMRF) focuses a significant portion of its research on developing a fundamental, molecular-level understanding of biochemical and biological systems and their response to environmental effects. A secondary focus is materials science, including catalysis and chemical mechanisms and processes. Staff and science consultants within this facility offer expertise in the areas of structural biology, solid-state materials characterization, and magnetic resonance imaging (MRI) techniques. Research activities in the HFMRF include: * structure determination of large molecular assemblies such as protein-DNA (normal and damaged DNA) and protein-RNA complexes

378

Gluon field distribution in baryons  

E-Print Network (OSTI)

Methods for revealing the distribution of gluon fields within the three-quark static-baryon potential are presented. In particular, we outline methods for studying the sensitivity of the source on the emerging vacuum response for the three-quark system. At the same time, we explore the possibility of revealing gluon-field distributions in three-quark systems in QCD without the use of gauge-dependent smoothing techniques. Renderings of flux tubes from a preliminary high-statistics study on a 12^3 X 24 lattice are presented.

F. Bissey; F-G. Cao; A. Kitson; B. G. Lasscock; D. B. Leinweber; A. I. Signal; A. G. Williams; J. M. Zanotti

2005-01-05T23:59:59.000Z

379

High field solenoids for muon cooling  

E-Print Network (OSTI)

on axis between the high field low beta coils and the fluxinverse of the field that produces the low beta pinch point.the high field section that creates the low beta pinch in

Green, M.A.

2011-01-01T23:59:59.000Z

380

String field theory and tachyon condensation  

E-Print Network (OSTI)

In this thesis I discuss various aspects of Witten's cubic string field theory. After a brief review of the basics of string field theory we begin by showing how string field theory can be used to check certain conjectures ...

Ellwood, Ian Thomas, 1977-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Analytic progress in open string field theory  

E-Print Network (OSTI)

Open string field theory provides an action functional for open string fields, and it is thus a manifestly off-shell formulation of open string theory. The solutions to the equation of motion of open string field theory ...

Kiermaier, Michael Stefan

2009-01-01T23:59:59.000Z

382

Linear electric field mass spectrometry  

DOE Patents (OSTI)

A mass spectrometer and methods for mass spectrometry. The apparatus is compact and of low weight and has a low power requirement, making it suitable for use on a space satellite and as a portable detector for the presence of substances. High mass resolution measurements are made by timing ions moving through a gridless cylindrically symmetric linear electric field.

McComas, David J. (Los Alamos, NM); Nordholt, Jane E. (Los Alamos, NM)

1992-01-01T23:59:59.000Z

383

The courts and electromagnetic fields  

Science Conference Proceedings (OSTI)

This article examines the recent development in eminent domain cases involving power transmission line rights of way, the issue of fear of the mythical buyer. The author feels that the fear of electrocution or of the possible cancer-inducing effects of electromagnetic fields is greatly influencing court decisions in these cases. The results could be more expensive rights of way acquisition by utilities.

Freeman, M. (Univ. of Pennsylvania, Philadelphia (United States))

1990-07-19T23:59:59.000Z

384

Linear electric field mass spectrometry  

DOE Patents (OSTI)

A mass spectrometer and methods for mass spectrometry are described. The apparatus is compact and of low weight and has a low power requirement, making it suitable for use on a space satellite and as a portable detector for the presence of substances. High mass resolution measurements are made by timing ions moving through a gridless cylindrically symmetric linear electric field. 8 figs.

McComas, D.J.; Nordholt, J.E.

1992-12-01T23:59:59.000Z

385

A current concern. [Electromagnetic fields  

SciTech Connect

This article examines the risk to homeowners of exposure to electromagnetic fields (EMF). Studies that link EMF to cancer are described and recommendations are given for prudent avoidance. Appliance manufacturers claim to have found no economically feasible way to shield emissions. Meanwhile the EPA's health effects research in this area has been suspended because of budgetary constraints.

Brinckerhoff, S.

1990-09-01T23:59:59.000Z

386

Linear electric field mass spectrometry  

DOE Patents (OSTI)

A mass spectrometer is described having a low weight and low power requirement, for use in space. It can be used to analyze the ionized particles in the region of the spacecraft on which it is mounted. High mass resolution measurements are made by timing ions moving through a gridless cylindrically sysmetric linear electric field.

McComas, D.J.; Nordholt, J.E.

1991-03-29T23:59:59.000Z

387

Field Guide: Bearing Damage Mechanisms  

Science Conference Proceedings (OSTI)

Electric Power Research Institute (EPRI) report 1021780, Manual of Bearing Failures and Repair in Power Plant Rotating Equipment, 2011 Update, is a comprehensive document on the subject of fluid film bearing damage modes. This field guide provides a pocket reference based upon the content of that report. ...

2012-11-06T23:59:59.000Z

388

Quantum Field Theory Frank Wilczeky  

E-Print Network (OSTI)

Quantum Field Theory Frank Wilczeky Institute for Advanced Study, School of Natural Science, Olden Lane, Princeton, NJ 08540 I discuss the general principles underlying quantum eld theory, and attempt achieved and prospective. Possible limitations of quantum eld theory are viewed in the light of its history

Wilczek, Frank

389

Quantum fields with topological defects  

E-Print Network (OSTI)

Domain walls, strings and monopoles are extended objects, or defects, of quantum origin with topologically non--trivial properties and macroscopic behavior. They are described in Quantum Field Theory in terms of inhomogeneous condensates. We review the related formalism in the framework of the spontaneous breakdown of symmetry.

M. Blasone; P. Jizba; G. Vitiello

2004-02-13T23:59:59.000Z

390

Quantum Field Theory in Graphene  

E-Print Network (OSTI)

This is a short non-technical introduction to applications of the Quantum Field Theory methods to graphene. We derive the Dirac model from the tight binding model and describe calculations of the polarization operator (conductivity). Later on, we use this quantity to describe the Quantum Hall Effect, light absorption by graphene, the Faraday effect, and the Casimir interaction.

Fialkovsky, I V

2011-01-01T23:59:59.000Z

391

Quantum Field Theory in Graphene  

E-Print Network (OSTI)

This is a short non-technical introduction to applications of the Quantum Field Theory methods to graphene. We derive the Dirac model from the tight binding model and describe calculations of the polarization operator (conductivity). Later on, we use this quantity to describe the Quantum Hall Effect, light absorption by graphene, the Faraday effect, and the Casimir interaction.

I. V. Fialkovsky; D. V. Vassilevich

2011-11-13T23:59:59.000Z

392

Field Training in Radar Meteorology  

Science Conference Proceedings (OSTI)

The NSF Division of Mesoscale Meteorology and the University of NevadaReno (UNR) provided support for a two-week field course at the CSUCHILL radar during 1224 May 1991. Ten atmospheric science graduate students and two faculty from the Desert ...

John Hallett; Melanie Wetzel; Steven Rutledge

1993-01-01T23:59:59.000Z

393

Computers for Lattice Field Theories  

E-Print Network (OSTI)

Parallel computers dedicated to lattice field theories are reviewed with emphasis on the three recent projects, the Teraflops project in the US, the CP-PACS project in Japan and the 0.5-Teraflops project in the US. Some new commercial parallel computers are also discussed. Recent development of semiconductor technologies is briefly surveyed in relation to possible approaches toward Teraflops computers.

Y. Iwasaki

1994-01-26T23:59:59.000Z

394

Performance limits of heliostat fields  

SciTech Connect

Geometric and thermodynamic arguments are used to derive upper limits on the performance of a solar energy collection system, consisting of an axisymmetric heliostat field, a solar tower, secondary optics and a black receiver. Performance limits on collected power, concentration, and work output are presented. Performance of tower systems with several secondary optics options is compared: tower-top Compound Parabolic Concentrator (CPC), Tailored Edge-Ray Concentrator (TERC) approximated by a cone, and Cassegrainian with ground-level CPC or Compound Elliptic Concentrator (CEC). Optimized ray tracing is used to generate the design parameters of the secondary concentrators that yield the highest optical efficiency. The results show that the tower-top Cone provides the best performance regarding both concentration and efficiency, except for very large fields. The Cassegrainian designs come in second, but become equal and even better than the Cone for large fields. The results for the Cassegrainian are sensitive to the value of the reflectivity, due to the additional reflections incurred. The choice of a CEC is better than a CPC for the terminal concentration in a Cassegrainian system, but the difference is small. The suitability of the different design options for high-temperature solar applications is discussed. The recommendations regarding optical configuration depend on field size, as well as on application-specific constraints.

Kribus, A.; Krupkin, V.; Yogev, A. [Weizmann Inst. of Science, Rehovot (Israel). Environmental Sciences and Energy Research Dept.; Spirkl, W. [Ludwig-Maximilians-Univ. Muenchen (Germany). Sektion Physik

1998-11-01T23:59:59.000Z

395

Results from shallow research drilling at Inyo Domes, Long Valley Caldera, California and Salton Sea geothermal field, Salton Trough, California  

DOE Green Energy (OSTI)

This report reviews the results from two shallow drilling programs recently completed as part of the United States Department of Energy Continental Scientific Drilling Program. The purpose is to provide a broad overview of the objectives and results of the projects, and to analyze these results in the context of the promise and potential of research drilling in crustal thermal regimes. The Inyo Domes drilling project has involved drilling 4 shallow research holes into the 600-year-old Inyo Domes chain, the youngest rhyolitic event in the coterminous United States and the youngest volcanic event in Long Valley Caldera, California. The purpose of the drilling at Inyo was to understand the thermal, chemical and mechanical behavior of silicic magma as it intrudes the upper crust. This behavior, which involves the response of magma to decompression and cooling, is closely related to both eruptive phenomena and the establishment of hydrothermal circulation. The Salton Sea shallow research drilling project involved drilling 19 shallow research holes into the Salton Sea geothermal field, California. The purpose of this drilling was to bound the thermal anomaly, constrain hydrothermal flow pathways, and assess the thermal budget of the field. Constraints on the thermal budget links the local hydrothermal system to the general processes of crustal rifting in the Salton Trough.

Younker, L.W.; Eichelberger, J.C.; Kasameyer, P.W.; Newmark, R.L.; Vogel, T.A.

1987-09-01T23:59:59.000Z

396

BLM Stillwater Field Office | Open Energy Information  

Open Energy Info (EERE)

Stillwater Field Office Jump to: navigation, search Name BLM Stillwater Field Office Short Name Stillwater Parent Organization BLM Carson City District Office Address 5665 Morgan...

397

Web Force-Field (WebFF)  

Science Conference Proceedings (OSTI)

Web Force-Field (WebFF). Summary: ... WebFF - A web hosted, extensible force field repository with integrated assignment engine. Description: ...

2013-07-19T23:59:59.000Z

398

Evaluation of Electric Field Exposure Assessment Methods  

Science Conference Proceedings (OSTI)

This evaluation of electric field exposure assessment methods highlights a renewed interest in characterizing electric field exposures and their attendant perceptible nuisance shocks.

2008-09-26T23:59:59.000Z

399

Nonproliferation & Homeland Security Field Support | Global and...  

NLE Websites -- All DOE Office Websites (Extended Search)

and Homeland Security Field Support Group provides radiological assistance to federal and state agencies under the DOE Radiological Assistance Program (RAP), field support for...

400

Pennsylvania Natural Gas Underground Storage Depleted Fields...  

U.S. Energy Information Administration (EIA) Indexed Site

Underground Storage Depleted Fields Capacity (Million Cubic Feet) Pennsylvania Natural Gas Underground Storage Depleted Fields Capacity (Million Cubic Feet) Decade Year-0 Year-1...

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Extending Depth of Field via Multifocus Fusion.  

E-Print Network (OSTI)

??In digital imaging systems, due to the nature of the optics involved, the depth of field is constricted in the field of view. Parts of (more)

Hariharan, Harishwaran

2011-01-01T23:59:59.000Z

402

Separation of magnetic field lines  

SciTech Connect

The field lines of magnetic fields that depend on three spatial coordinates are shown to have a fundamentally different behavior from those that depend on two coordinates. Unlike two-coordinate cases, a flux tube in a magnetic field that depends on all three spatial coordinates that has a circular cross section at one location along the tube characteristically has a highly distorted cross section at other locations. In an ideal evolution of a magnetic field, the current densities typically increase. Crudely stated, if the current densities increase by a factor {sigma}, the ratio of the long to the short distance across a cross section of a flux tube characteristically increases by e{sup 2{sigma}}, and the ratio of the longer distance to the initial radius increases as e{sup {sigma}}. Electron inertia prevents a plasma from isolating two magnetic field structures on a distance scale shorter than c/{omega}{sub pe}, which is about 10 cm in the solar corona, and reconnection must be triggered if {sigma} becomes sufficiently large. The radius of the sun, R{sub Circled-Dot-Operator }=7 Multiplication-Sign 10{sup 10}cm is about e{sup 23} times larger, so when {sigma} Greater-Than-Or-Equivalent-To 23, two lines separated by c/{omega}{sub pe} at one location can be separated by the full scale of any magnetic structures in the corona at another. The conditions for achieving a large exponentiation, {sigma}, are derived, and the importance of exponentiation is discussed.

Boozer, Allen H. [Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States)

2012-11-15T23:59:59.000Z

403

Junction-based field emission structure for field emission display  

DOE Patents (OSTI)

A junction-based field emission display, wherein the junctions are formed by depositing a semiconducting or dielectric, low work function, negative electron affinity (NEA) silicon-based compound film (SBCF) onto a metal or n-type semiconductor substrate. The SBCF can be doped to become a p-type semiconductor. A small forward bias voltage is applied across the junction so that electron transport is from the substrate into the SBCF region. Upon entering into this NEA region, many electrons are released into the vacuum level above the SBCF surface and accelerated toward a positively biased phosphor screen anode, hence lighting up the phosphor screen for display. To turn off, simply switch off the applied potential across the SBCF/substrate. May be used for field emission flat panel displays.

Dinh, Long N. (Concord, CA); Balooch, Mehdi (Berkeley, CA); McLean, II, William (Oakland, CA); Schildbach, Marcus A. (Livermore, CA)

2002-01-01T23:59:59.000Z

404

Field Verification of Distributed Renewable Generation, Volume 1: Renewable Energy Field Test Concepts  

Science Conference Proceedings (OSTI)

This report describes field verification of distributed renewable generation and focuses on renewable energy field test concepts.

2003-03-25T23:59:59.000Z

405

Evolution of primordial magnetic fields in mean-field approximation  

E-Print Network (OSTI)

We study the evolution of phase-transition-generated cosmic magnetic fields coupled to the primeval cosmic plasma in turbulent and viscous free-streaming regimes. The evolution laws for the magnetic energy density and correlation length, both in helical and non-helical cases, are found by solving the autoinduction and Navier-Stokes equations in mean-field approximation. Analytical results are derived in Minkowski spacetime and then extended to the case of a Friedmann universe with zero spatial curvature, both in radiation and matter dominated eras. The three possible viscous free-streaming phases are characterized by a drag term in the Navier-Stokes equation which depends on the free-steaming properties of neutrinos, photons, or hydrogen atoms, respectively. In the case of non-helical magnetic fields, the magnetic intensity $B$ and the magnetic correlation length $\\xi_B$ evolve asymptotically with the temperature $T$ as $B(T) \\simeq \\kappa_B (N_i v_i)^{\\varrho_1} (T/T_i)^{\\varrho_2}$ and $\\xi_B(T) \\simeq \\kap...

Campanelli, Leonardo

2013-01-01T23:59:59.000Z

406

3-D structural and seismic stratigraphic interpretation of the Guasare-Misoa Interval, VLE 196 Area, Block V, Lamar Field, Lake Maracaibo, Venezuela  

E-Print Network (OSTI)

In this study, the structure, depositional system, and the seismic stratigraphy of the VLE 196 area, Block V in Lamar Field were interpreted using 3-D seismic data and well logs to characterize structural and depositional settings of the Guasare-Misoa interval. To demonstrate structural settings of the study area 3-D seismic data were interpreted. Three main seismic reflectors, which are the Late Eocene unconformity, Guasare, and La Luna formations, were picked. The most dominant structure in the area is the VLE 400 Fault which was interpreted as a left-lateral strike-slip reverse fault due to its behaviors as a reverse fault in cross sections and as a strike-slip fault in strike sections. The VLE 400 Fault subdivides the VLE 196 area into two main structural blocks, a downthrown block in the western part and the upthrown block in the eastern part of the field where the hydrocarbons were trapped. Several en echelon normal and reverse faults were located along the both sides of the area. The main importance of these faults are that they fractured the La Luna source rock and created migration pathways through the reservoir layers of the Misoa Formation. To interpret depositional system of the Guasare-Misoa interval, tops of the C4 and C5 intervals and associated C4 layers were picked based on well logs and lithofacies maps were prepared. The results of this part of the study show that the sandstones of the Misoa Formation are delta front and fluvial/distributary channel facies of delta system. The net sand thickness map of the C4 interval also exhibits southeast northwest contour patterns reflecting depositional axes in the area. Shaly units of the C4 interval interpreted as potential seals and are of variable thickness and extend. Seismic stratigraphic interpretation of the area shows that the four main seismic facies are dominant which mainly represent the recent sediments, "C" sands of the Misoa Formation, underlying Colon and Mito Juan shales, and basement respectively. Some distributary eroded channel fill structures were also observed within the Misoa Formation, but they were not continuous through the area because of the intensive faulting.

Arzuman, Sadun

2002-12-01T23:59:59.000Z

407

Carlsbad Field Office Manager Selected  

NLE Websites -- All DOE Office Websites (Extended Search)

Carlsbad Field Office Manager Selected CARLSBAD, N.M., November 10, 2011 - The U.S. Department of Energy's (DOE) Richland Operations Office (RL) Assistant Manager for the River Corridor Joe Franco was selected as Manager for the Carlsbad Field Office (CBFO), which oversees the Waste Isolation Pilot Plant (WIPP). CBFO Deputy Manager Ed Ziemianski has been acting in the CBFO Manager's position for the past year and will continue to serve as Deputy Manager. In operation since 1999, WIPP is a DOE facility designed to safely isolate defense-related transuranic (TRU) waste from people and the environment. Since 2006, Franco was responsible for cleanup and restoration of the 220 square miles of the

408

The Localized Quantum Vacuum Field  

E-Print Network (OSTI)

A model for the localized quantum vacuum is proposed in which the zero-point energy of the quantum electromagnetic field originates in energy- and momentum-conserving transitions of material systems from their ground state to an unstable state with negative energy. These transitions are accompanied by emissions and re-absorptions of real photons, which generate a localized quantum vacuum in the neighborhood of material systems. The model could help resolve the cosmological paradox associated to the zero-point energy of electromagnetic fields, while reclaiming quantum effects associated with quantum vacuum such as the Casimir effect and the Lamb shift; it also offers a new insight into the Zitterbewegung of material particles.

Daniela Dragoman

2006-03-01T23:59:59.000Z

409

Diffeomorphisms in group field theories  

SciTech Connect

We study the issue of diffeomorphism symmetry in group field theories (GFT), using the noncommutative metric representation introduced by A. Baratin and D. Oriti [Phys. Rev. Lett. 105, 221302 (2010).]. In the colored Boulatov model for 3d gravity, we identify a field (quantum) symmetry which ties together the vertex translation invariance of discrete gravity, the flatness constraint of canonical quantum gravity, and the topological (coarse-graining) identities for the 6j symbols. We also show how, for the GFT graphs dual to manifolds, the invariance of the Feynman amplitudes encodes the discrete residual action of diffeomorphisms in simplicial gravity path integrals. We extend the results to GFT models for higher-dimensional BF theories and discuss various insights that they provide on the GFT formalism itself.

Baratin, Aristide [Triangle de la Physique, CPHT Ecole Polytechnique, IPhT Saclay, LPT Orsay and Laboratoire de Physique Theorique, CNRS UMR 8627, Universite Paris XI, F-91405 Orsay Cedex (France); Girelli, Florian [School of Physics, University of Sydney, Sydney, New South Wales 2006 (Australia); Oriti, Daniele [Max Planck Institute for Gravitational Physics, Albert Einstein Institute, Am Muehlenberg 1, 14467 Golm (Germany)

2011-05-15T23:59:59.000Z

410

Near-field thermal transistor  

E-Print Network (OSTI)

Using a block of three separated solid elements, a thermal source and drain together with a gate made of an insulator-metal transition material exchanging near-field thermal radiation, we introduce a nanoscale analog of a field-effect transistor which is able to control the flow of heat exchanged by evanescent thermal photons between two bodies. By changing the gate temperature around its critical value, the heat flux exchanged between the hot body (source) and the cold body (drain) can be reversibly switched, amplified, and modulated by a tiny action on the gate. Such a device could find important applications in the domain of nanoscale thermal management and it opens up new perspectives concerning the development of contactless thermal circuits intended for information processing using the photon current rather than the electric current.

Ben-Abdallah, Philippe

2013-01-01T23:59:59.000Z

411

Real Scalar Fields on Manifolds  

E-Print Network (OSTI)

A generic theory of a single real scalar field is considered, and a simple method is presented for obtaining a class of solutions to the equation of motion. These solutions are obtained from a simpler equation of motion that is generated by replacing a set of the original coordinates by a set of generalized coordinates, which are harmonic functions in the spacetime. These ansatz solutions solve the original equation of motion on manifolds that are defined by simple constraints. These manifolds, and their dynamics, are independent of the form of the scalar potential. Some scalar field solutions, and manifolds upon which they exist, are presented for Klein-Gordon and quartic potentials as examples. Solutions existing on leaves of a foliated space may allow inferences of the characteristics expected of exact bulk solutions.

J. R. Morris

2008-10-03T23:59:59.000Z

412

Nuclide-migration field experiments  

Science Conference Proceedings (OSTI)

When considering groundwater flow and radionuclide retention in the complex flow systems that can occur in geologic formations, one has a serious problem in determining if laboratory studies are being performed under conditions appropriate to natural systems. This document is the project plan for a program designed to begin to address these problems. The project is being carried out jointly by the Los Alamos National Laboratory, Sandia National Laboratories, and Argonne National Laboratory. The work has three principal objectives: (1) to develop the experimental, instrumental, and safety techniques necessary to conduct controlled, small-scale radionuclide migration field experiments, including those involving actinides; (2) to use these techniques to define radionuclide migration through rock by performing generic, at-depth experiments under closely monitored conditions; and (3) to determine whether available lithologic, geochemical, and hydrologic properties together with existing or developing transport models are sufficient and appropriate to describe real field conditions.

Erdal, B.R.; Wolfsberg, K.; Johnstone, J.K.; Erickson, K.L.; Friedman, A.M.; Fried, S.; Hines, J.J.

1981-03-01T23:59:59.000Z

413

Gamma radiation field intensity meter  

DOE Patents (OSTI)

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode. 4 figs.

Thacker, L.H.

1994-08-16T23:59:59.000Z

414

Geothermal Field Developments in Iceland  

SciTech Connect

The exploration and research carried out in conjunction with the exploitation of the various geothernal fields has vastly deepened our understanding of the hydrothermal systems in Inceland. They have proved to be more diverse with respect to physical state, chemical composition, hydrological properties, and geological control than previously thought. The purpose of the present paper is to review the present state of knowledge regarding the Icelandic geothermal systems, with emphasis on the production and reservoir engineering aspects.

Palmason, G.; Stefansson, V.; Thorhallsson, S.; Thorsteinsson, T.

1983-12-15T23:59:59.000Z

415

Gamma radiation field intensity meter  

DOE Patents (OSTI)

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode. 4 figs.

Thacker, L.H.

1995-10-17T23:59:59.000Z

416

Production Hydraulic Packer Field Test  

Science Conference Proceedings (OSTI)

In October 1999, the Rocky Mountain Oilfield Testing Center and Halliburton Energy Services cooperated on a field test of Halliburton's new Production Hydraulic Packer technology on Well 46-TPX-10 at Naval Petroleum Reserve No. 3 near Casper, WY. Performance of the packer was evaluated in set and unset operations. The packer's ability to seal the annulus between the casing and tubing was hydraulically tested and the results were recorded.

Schneller, Tricia; Salas, Jose

2000-06-30T23:59:59.000Z

417

Nuclear stimulation of gas fields  

SciTech Connect

From National Technical Canadian Gas Association; Calgary, Alberta, Canada (17 Oct 1973). The technical bases of the emerging technology of nuclear stimulation of natural gas fields, the potential of this method for increasing the gas supply of the US, and public issues related to this technology are discussed. A technical appendix is provided with information on: reservoir producing characteristics; explosive design, availability, and cost; firing and space of explosives; economic parameters; and tabulated statistics on past and current projects on nuclear stimulation. (LCL)

Randolph, P.L.

1973-09-01T23:59:59.000Z

418

Gamma radiation field intensity meter  

SciTech Connect

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode.

Thacker, Louis H. (Knoxville, TN)

1995-01-01T23:59:59.000Z

419

Gamma radiation field intensity meter  

SciTech Connect

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode.

Thacker, Louis H. (Knoxville, TN)

1994-01-01T23:59:59.000Z

420

Designating required vs. optional input fields  

Science Conference Proceedings (OSTI)

This paper describes a study comparing different techniques for visually distingishing required from optional input fields in a form-filling application. Seven techniques were studied: no indication, bold field labels, chevrons in front of the labels, ... Keywords: data input, optional fields, required fields, visual design

Thomas S. Tullis; Ana Pons

1997-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

2010 Kansas Field Conference June 24, 2010  

E-Print Network (OSTI)

2010 Kansas Field Conference June 2­4, 2010 Flint Hills, Cross Timbers, and Verdigris River Valley 2 3 4 7 5 6 8 9 10 #12;2010 Field Conference Flint Hills, Cross Timbers, and Verdigris River Valley..........................................................................................1 - 2 Kansas Field Conference 2010 Field Conference Overview "Flint Hills, Cross Timbers

Peterson, Blake R.

422

Field Campaign Guidelines (ARM Climate Research Facility)  

Science Conference Proceedings (OSTI)

The purpose of this document is to establish a common set of guidelines for the Atmospheric Radiation Measurement (ARM) Climate Research Facility for planning, executing, and closing out field campaigns. The steps that guide individual field campaigns are described in the Field Campaign Tracking database tool and are tailored to meet the scope of each specific field campaign.

Voyles, JW

2011-01-17T23:59:59.000Z

423

Apparatuses and methods for generating electric fields  

DOE Patents (OSTI)

Apparatuses and methods relating to generating an electric field are disclosed. An electric field generator may include a semiconductive material configured in a physical shape substantially different from a shape of an electric field to be generated thereby. The electric field is generated when a voltage drop exists across the semiconductive material. A method for generating an electric field may include applying a voltage to a shaped semiconductive material to generate a complex, substantially nonlinear electric field. The shape of the complex, substantially nonlinear electric field may be configured for directing charged particles to a desired location. Other apparatuses and methods are disclosed.

Scott, Jill R; McJunkin, Timothy R; Tremblay, Paul L

2013-08-06T23:59:59.000Z

424

The spinor field theory of the photon  

E-Print Network (OSTI)

I introduce a spinor field theory for the photon. The three-dimensional vector electromagnetic field and the four-dimensional vector potential are components of this spinor photon field. A spinor equation for the photon field is derived from Maxwell's equations,the relations between the electromagnetic field and the four-dimensional vector potential, and the Lorentz gauge condition. The covariant quantization of free photon field is done, and only transverse photons are obtained. The vacuum energy divergence does not occur in this theory. A covariant "positive frequency" condition is introduced for separating the photon field from its complex conjugate in the presence of the electric current and charge.

Ruo Peng Wang

2011-09-15T23:59:59.000Z

425

Category:Field Techniques | Open Energy Information  

Open Energy Info (EERE)

Field Techniques Field Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Field Techniques page? For detailed information on Field Techniques as exploration techniques, click here. Category:Field Techniques Add.png Add a new Field Techniques Technique Subcategories This category has the following 2 subcategories, out of 2 total. D [×] Data Collection and Mapping‎ 5 pages F [+] Field Sampling‎ (2 categories) 4 pages Pages in category "Field Techniques" The following 4 pages are in this category, out of 4 total. D Data Collection and Mapping F Field Sampling H Hand-held X-Ray Fluorescence (XRF) P Portable X-Ray Diffraction (XRD) Retrieved from "http://en.openei.org/w/index.php?title=Category:Field_Techniques&oldid=689815"

426

Principles of Arrangement Field Theory  

E-Print Network (OSTI)

In this paper I attempt to summarize the fundamental principles which underlie to Arrangement Field Theory. In my intention the exposition would be the most possible intelligible and self-contained. However the exposed concepts are revisited in the light of the new researches, so that they could appear slightly different than in the previous works. Much emphasis is posed here to the power of theory to predict the number of fermionic families (flavours) and space-time dimensions. I also give a quick glance to the entanglement phenomenon and its interpretation as microscopic wormhole.

Diego Marin

2012-07-07T23:59:59.000Z

427

Eddy-Current-Induced Multipole Field Calculations  

NLE Websites -- All DOE Office Websites (Extended Search)

Eddy-Current-Induced Multipole Field Calculations Eddy-Current-Induced Multipole Field Calculations September 29, 2003 1 Eddy-Current-Induced Multipole Field Calculations Nicholas S. Sereno, Suk H. Kim 1.0 Abstract Time-varying magnetic fields of magnets in booster accelerators induce substantial eddy currents in the vacuum chambers. The eddy currents in turn act to produce various multi- pole fields that act on the beam. These fields must be taken into account when doing a lat- tice design. In the APS booster, the relatively long dipole magnets (3 meters) are linearly ramped to accelerate the injected 325 MeV beam to 7 GeV. Substantial dipole and sextu- pole fields are generated in the elliptical vacuum chamber from the induced eddy currents. In this note, formulas for the induced dipole and sextupole fields are derived for elliptical and rectangular vacuum chambers for a time-varying dipole field. A discussion is given

428

Simulating the interplay between plasma transport, electric field, and magnetic field in the near-Earth nightside magnetosphere  

E-Print Network (OSTI)

field, field aligned currents, Pedersen conductance and fluxpressure and flux tube volume, the field-aligned current can

Gkioulidou, Malamati

2012-01-01T23:59:59.000Z

429

Shape resonances in molecular fields  

SciTech Connect

A shape resonance is a quasibound state in which a particle is temporarily trapped by a potential barrier (i.e., the shape of the potential), through which it may eventually tunnel and escape. This simple mechanism plays a prominent role in a variety of excitation processes in molecules, ranging from vibrational excitation by slow electrons to ionization of deep core levels by X-rays. Moreover, their localized nature makes shape resonances a unifying link between otherwise dissimilar circumstances. One example is the close connection between shape resonances in electron-molecule scattering and in molecular photoionization. Another is the frequent persistence of free-molecule shape resonant behavior upon adsorption on a surface or condensation into a molecular solid. The main focus of this article is a discussion of the basic properties of shape resonances in molecular fields, illustrated by the more transparent examples studied over the last ten years. Other aspects to be discussed are vibrational effects of shape resonances, connections between shape resonances in different physical settings, and examples of shape resonant behavior in more complex cases, which form current challenges in this field.

Dehmer, J.L.

1984-01-01T23:59:59.000Z

430

Shape resonances in molecular fields  

SciTech Connect

A shape resonance is a quasibound state in which a particle is temporarily trapped by a potential barrier (i.e., the shape of the potential), through which it may eventually tunnel and escape. This simple mechanism plays a prominent role in a variety of excitation processes in molecules, ranging from vibrational excitation by slow electrons to ionization of deep core levels by x-rays. Moreover, their localized nature makes shape resonances a unifying link between otherwise dissimilar circumstances. One example is the close connection between shape resonances in electron-molecule scattering and in molecular photoionization. Another is the frequent persistence of free-molecule shape resonant behavior upon adsorption on a surface or condensation into a molecular solid. The main focus of this article is a discussion of the basic properties of shape resonances in molecular fields, illustrated by the more transparent examples studied over the last ten years. Other aspects to be discussed are vibrational effects of shape resonances, connections between shape resonances in different physical settings, and examples of shape resonant behavior in more complex cases, which form current challenges in this field.

Dehmer, J.L.

1984-01-01T23:59:59.000Z

431

High Field Phenomena of Qubits  

E-Print Network (OSTI)

Electron and nuclear spins are very promising candidates to serve as quantum bits (qubits) for proposed quantum computers, as the spin degrees of freedom are relatively isolated from their surroundings, and can be coherently manipulated e.g. through pulsed EPR and NMR. For solid state spin systems, impurities in crystals based on carbon and silicon in various forms have been suggested as qubits, and very long relaxation rates have been observed in such systems. We have investigated a variety of these systems at high magnetic fields in our multi-frequency pulsed EPR/ENDOR spectrometer. A high magnetic field leads to large electron spin polarizations at helium temperatures giving rise to various phenomena that are of interest with respect to quantum computing. For example, it allows the initialization of the both the electron spin as well as hyperfine-coupled nuclear spins in a well defined state by combining millimeter and RF radiation; it can increase the T2 relaxation times by eliminating decoherence due to dipolar interaction; and it can lead to new mechanisms for the coherent electrical readout of electron spins. We will show some examples of these and other effects in Si:P, SiC:N, and nitrogen-related centers in diamond.

J. van Tol; G. W. Morley; S. Takahashi; D. R. McCamey; C. Boehme; M. E. Zvanut

2009-06-11T23:59:59.000Z

432

Aging Logarithmic Galilean Field Theories  

E-Print Network (OSTI)

We analytically compute correlation and response functions of scalar operators for the systems with Galilean and corresponding aging symmetries for general spatial dimensions $d$ and dynamical exponent $z$, along with their logarithmic and logarithmic squared extensions, using the gauge/gravity duality. These non-conformal extensions of the aging geometry are marked by two dimensionful parameters, eigenvalue $\\mathcal M$ of an internal coordinate and aging parameter $\\alpha$. We further perform systematic investigations on two-time response functions for general $d$ and $z$, and identify the growth exponent as a function of the scaling dimensions $\\Delta$ of the dual field theory operators and aging parameter $\\alpha$ in our theory. The initial growth exponent is only controlled by $\\Delta$, while its late time behavior by $\\alpha$ as well as $\\Delta$. These behaviors are separated by a time scale order of the waiting time. We attempt to make contact our results with some field theoretical growth models, such as Kim-Kosterlitz model at higher number of spatial dimensions $d$.

Seungjoon Hyun; Jaehoon Jeong; Bom Soo Kim

2013-03-29T23:59:59.000Z

433

Spaces of Quantum Field Theories  

E-Print Network (OSTI)

The concept of a "space of quantum field theories" or "theory space" was set out in the 1970's in work of Wilson, Friedan and others. This structure should play an important role in organizing and classifying QFTs, and in the study of the string landscape, allowing us to say when two theories are connected by finite variations of the couplings or by RG flows, when a sequence of QFTs converges to another QFT, and bounding the amount of information needed to uniquely specify a QFT, enabling us to estimate their number. As yet we do not have any definition of theory space which can be used to make such arguments. In this talk, we will describe various concepts and tools which should be developed for this purpose, inspired by the analogous mathematical problem of studying the space of Riemannian manifolds. We state two general conjectures about the space of two-dimensional conformal field theories, and we define a distance function on this space, which gives a distance between any pair of theories, whether or not they are connected by varying moduli. Based on talks given at QTS6 (University of Kentucky), Erice, Texas A& M, and Northwestern University. To appear in the proceedings of QTS6.

Michael R. Douglas

2010-05-16T23:59:59.000Z

434

Geothermal/Well Field | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Geothermal/Well Field < Geothermal(Redirected from Well Field) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Land Use Leasing Exploration Well Field Power Plant Transmission Environment Water Use Print PDF Geothermal Well Fields and Reservoirs General Techniques Tree Techniques Table Regulatory Roadmap NEPA (45) Geothermal energy plant at The Geysers near Santa Rosa in Northern California, the world's largest electricity-generating hydrothermal geothermal development. Copyright © 1995 Warren Gretz Geothermal Well Fields discussion Groups of Well Field Techniques

435

Field testing plan for unsaturated zone monitoring and field studies  

Science Conference Proceedings (OSTI)

The University of Arizona, in cooperation with the Bureau of Economic Geology at The University of Texas at Austin, and Stephens and Associates in Albuquerque, New Mexico has developed a field testing plan for evaluating subsurface monitoring systems. The U.S. Nuclear Regulatory Commission has requested development of these testing plans for low-level radioactive waste disposal sites (LLW) and for monitoring at decommissioned facilities designated under the {open_quotes}Site Decommissioning Management Plan{close_quotes} (SDMP). The tests are conducted on a 50 m by 50 m plot on the University of Arizona`s Maricopa Agricultural Center. Within the 50 m by 50 m plot one finds: (1) an instrumented buried trench, (2) monitoring islands similar to those proposed for the Ward Valley, California LLW Facility, (3) deep borehole monitoring sites, (4) gaseous transport monitoring, and (5) locations for testing non-invasive geophysical measurement techniques. The various subplot areas are instrumented with commercially available instruments such as neutron probes, time domain reflectometry probes, tensiometers, psychrometers, heat dissipation sensors, thermocouples, solution samplers, and cross-hole geophysics electrodes. Measurement depths vary from ground surface to 15 m. The data from the controlled flow and transport experiments, conducted over the plot, will be used to develop an integrated approach to long-term monitoring of the vadose zone at waste disposal sites. The data will also be used to test field-scale flow and transport models. This report describes in detail the design of the experiment and the methodology proposed for evaluating the data.

Young, M.H.; Wierenga, P.J.; Warrick, A.W. [and others

1996-10-01T23:59:59.000Z

436

Potential field and electromagnetic studies: Introduction  

DOE Green Energy (OSTI)

Several aeromagnetic surveys have been flown over Long Valley at different altitudes and line spacings. The one most often referred to was a high level (4 km or 13,200 feet above sea level barometric survey) flown by the USGS in 1973 along E-W lines spaced 1.7 km apart. Investigators attempted a quantitative interpretation of the data, and suggested that extensive post-caldera hydrothermal activity may have drastically altered the composition of the titanomagnetites in the Bishop Tuff, causing the magnetic low in the area of the resurgent dome. Others have reported in informal conversations, as is now supported by holes M-1 and 44-016, that the low in the western part of the caldera is the result of lower magnetization of the post-caldera volcanics and a large wedge of Paleozoic metasediments that floor the caldera. The true nature of the magnetic high on the eastern flank of the resurgent dome has been revealed by recent paleomagnetic work and from a detailed aeromagnetic survey flown 400 feet above terrain for the USGS in 1979. 6 refs., 2 figs.

Goldstein, N.E.

1987-03-01T23:59:59.000Z

437

Design of a cusped field plasma thruster  

E-Print Network (OSTI)

A plasma space propulsion thruster has been designed. It is classified as a Cusped Field Thruster (CFT), which refers to the geometry of the magnetic field that influences the flow of electrons and ions. The thruster was ...

Conte, Joseph Richard, III

2012-01-01T23:59:59.000Z

438

Category:Field Sampling | Open Energy Information  

Open Energy Info (EERE)

Category Category Edit History Facebook icon Twitter icon » Category:Field Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Field Sampling page? For detailed information on Field Sampling as exploration techniques, click here. Category:Field Sampling Add.png Add a new Field Sampling Technique Subcategories This category has the following 2 subcategories, out of 2 total. G [×] Gas Sampling‎ 3 pages W [×] Water Sampling‎ 2 pages Pages in category "Field Sampling" The following 4 pages are in this category, out of 4 total. G Gas Sampling R Rock Sampling S Soil Sampling W Water Sampling Retrieved from "http://en.openei.org/w/index.php?title=Category:Field_Sampling&oldid=689818" Category: Field Techniques

439

Geothermal/Well Field | Open Energy Information  

Open Energy Info (EERE)

Geothermal/Well Field Geothermal/Well Field < Geothermal Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Land Use Leasing Exploration Well Field Power Plant Transmission Environment Water Use Print PDF Geothermal Well Fields and Reservoirs General Techniques Tree Techniques Table Regulatory Roadmap NEPA (42) Geothermal energy plant at The Geysers near Santa Rosa in Northern California, the world's largest electricity-generating hydrothermal geothermal development. Copyright © 1995 Warren Gretz Geothermal Well Fields discussion Groups of Well Field Techniques There are many different techniques that are utilized in geothermal well field development and reservoir maintenance depending on the region's geology, economic considerations, project maturity, and other considerations such as land access and permitting requirements. Well field

440

Burley Field Office | Open Energy Information  

Open Energy Info (EERE)

Burley Field Office Jump to: navigation, search Name BLM Burley Field Office Address 15 East 200 South Place Burley, ID Zip 83318 Phone number 208-677-6600 Website http:...

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

BLM Bishop Field Office | Open Energy Information  

Open Energy Info (EERE)

Bishop Field Office Jump to: navigation, search Name BLM Bishop Field Office Address 351 Pacu Lane, Suite 100 Place Bishop, CA Zip 93514 Website http:www.blm.govcastenfo...

442

BLM Pocatello Field Office | Open Energy Information  

Open Energy Info (EERE)

Pocatello Field Office Jump to: navigation, search Name BLM Pocatello Field Office Address 4350 Cliffs Drive Place Pocatello, ID Zip 83204 Phone number 208-478-6340 Website http:...

443

BLM Ukiah Field Office | Open Energy Information  

Open Energy Info (EERE)

Ukiah Field Office Jump to: navigation, search Name BLM Ukiah Field Office Address 2550 North State Street Place Ukiah, CA Zip 95482 Phone number (707) 468-4000 Website http:...

444

BLM Burley Field Office | Open Energy Information  

Open Energy Info (EERE)

Burley Field Office Jump to: navigation, search Name BLM Burley Field Office Address 15 East 200 South Place Burley, ID Zip 83318 Phone number 208-677-6600 Website http:...

445

Top 100 Oil and Gas Fields  

U.S. Energy Information Administration (EIA)

Appendix B Top 100 Oil and Gas Fields This appendix presents estimates of the proved reserves and production of the top 100 liquids or gas fields by reserves or by ...

446

String Field Equations from Generalized Sigma Model  

E-Print Network (OSTI)

I I . i LBNL-39854 String Field Equations fromU C B - P T H - 9 7 / 0 3 String F i e l d Equations fromnew approach for deriving the string field equations from a

Bardakci, K.

2010-01-01T23:59:59.000Z

447

Matter Field, Dark Matter and Dark Energy  

E-Print Network (OSTI)

A model concerning particle theory and cosmology is proposed. Matter field, dark matter and dark energy are created by an energy flow from space to primordial matter fields at the phase transition in the early universe.

Masayasu Tsuge

2008-02-01T23:59:59.000Z

448

Workforce Statistics - Pantex Field Office | National Nuclear...  

National Nuclear Security Administration (NNSA)

Statistics - Pantex Field Office Pantex Field Office FY12 Semi Annual Report FY11 Year-End Workforce Diversity Report FY10 Semi Annual Report (pdf, 94KB) Year End Summary (pdf, 202...

449

Holographic thermodynamics and transport of flavor fields.  

E-Print Network (OSTI)

??We use gauge-gravity duality to study a strongly-coupled non-Abelian gauge theory with flavor fields, i.e. fields transforming in the fundamental representation of the gauge group. (more)

O'Bannon, Andrew Hill, 1979-

2008-01-01T23:59:59.000Z

450

ARM - Field Campaign - BDRF Campaign  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsBDRF Campaign govCampaignsBDRF Campaign Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : BDRF Campaign 1998.08.03 - 1998.08.28 Lead Scientist : Donald Slater Summary The BDRF campaign is a CERES (on the TRMM satellite) validation exercise that involves helicopter measurements of upwelling radiation made by an ASD spectrometer and broadband radiometers, along an on-board scanning radiometer that can track a particular pixel in flight (for BDRF). On the ground, surface instruments will be placed in close proximity to "targeted" farm fields (near the central facility) rented from local farmers, representing a variety of vegetation types. These ground instruments will also be located at the central facility. Ground instruments tentatively

451

ARM - Propose a Field Campaign  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsPropose a Campaign govCampaignsPropose a Campaign Schedule and Availability Preproposals now open for AMF and AAF Preproposals due 1 Feb Invited full proposals due 1 May AAF available Dec 2015 AMF1 available Apr 2016 AMF2 available early 2017 AMF3 available for guest instrumentation or intensive operational periods Forms Propose a Campaign Form Instrument Support Request (ISR) Form (Word, 89KB) Documentation Steps to Send Campaign Data to ARM Data Archive Field Campaign Guidelines (PDF, 1.1MB) Propose a Campaign : Preproposal Form Preproposals are short summaries of the proposed campaign and can originate with any scientist. Before you begin your preproposal, you should review the guidelines for submitting proposals. If you are preparing your preproposals locally on your computer, please

452

Parallel Objects and Field Equations  

E-Print Network (OSTI)

This paper considers a generalization of the existing concept of parallel (with respect to a given connection) geometric objects and its possible usage as a suggesting rule in searching for adequate field equations in theoretical physics. The generalization tries to represent mathematically the two-sided nature of the physical objects, the {\\it change} and the {\\it conservation}. The physical objects are presented mathematically by sections $\\Psi$ of vector bundles, the admissible changes $D\\Psi$ are described as a rsult of the action of appropriate differential operators $D$ on these sections, and the conservation propertieis are accounted for by the requirement that suitable projections of $D\\Psi$ on $\\Psi$ and on other appropriate sections must be zero. It is shown that the most important equations of theoretical physics obey this rule. Extended forms of Maxwell and Yang-Mills equations are also considered.

Stoil Donev; Maria Tashkova

2002-05-30T23:59:59.000Z

453

ARM - Field Campaign - PGS Validatation  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsPGS Validatation govCampaignsPGS Validatation Related Campaigns Precision Gas Sampling (PGS) Validation Field Campaign 2008.01.01, Fischer, SGP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : PGS Validatation 2009.03.01 - 2010.02.28 Lead Scientist : Marc Fischer For data sets, see below. Description The focus of this project was the prediction of landscape-scale fluxes of CO2, water, and sensible heat that drive variations in carbon cycle and regional climate (e.g., cloud formation and precipitation). Variation in these fluxes, caused by land use, management, and changing climate, requires models that are parameterized and tested against measurements made in multiple land cover types and over seasonal to inter-annual time scales.

454

Generating Cosmological Gaussian Random Fields  

E-Print Network (OSTI)

We present a generic algorithm for generating Gaussian random initial conditions for cosmological simulations on periodic rectangular lattices. We show that imposing periodic boundary conditions on the real-space correlator and choosing initial conditions by convolving a white noise random field results in a significantly smaller error than the traditional procedure of using the power spectrum. This convolution picture produces exact correlation functions out to separations of L/2, where L is the box size, which is the maximum theoretically allowed. This method also produces tophat sphere fluctuations which are exact at radii $ R \\le L/4 $. It is equivalent to windowing the power spectrum with the simulation volume before discretizing, thus bypassing sparse sampling problems. The mean density perturbation in the volume is no longer constrained to be zero, allowing one to assemble a large simulation using a series of smaller ones. This is especially important for simulations of Lyman-$\\alpha$ systems where sma...

Pen, U L

1997-01-01T23:59:59.000Z

455

The incident at Stagg Field  

SciTech Connect

A brief history of the events leading up to the first controlled release of atomic energy under the abandoned West Stands of Scagg Field at the University of Chicago on December 2, 1942. This experiment was a milestone in a multifaceted project geared toward producing an atomic bomb in time to affect the outcome of World War II. This article traces the origins of the Manhattan Project from the first letter written by Einstein to the first successful graphite modulated chain reacting pile and including a brief afterward on the use of the bombs produced by this project on the cities of Hiroshima and Nagasaki. Other articles in this magazine also discuss various aspects of the project and serve, along with this article, as a commemoration of the 50th anniversary of the first controlled chain reaction.

Moore, M.

1992-12-01T23:59:59.000Z

456

The Higgs field can be expressed through the lepton and quark fields  

E-Print Network (OSTI)

The Higgs field is a central point of the Standard Model supplying masses to other fields through the symmetry breaking mechanism. However, it is associated with an elementary particle which is not yet discovered experimentally. In this short note I suggest a way for expressing the Higgs field through other fields of the Standard Model. If this is the case, being not an independent field, the Higgs field does not require an elementary particle to be associated with it.

Ruslan Sharipov

2007-03-01T23:59:59.000Z

457

Oxidation Kinetics Modeling Applying Phase Field Approach  

Science Conference Proceedings (OSTI)

Presentation Title, Oxidation Kinetics Modeling Applying Phase Field Approach ... chemical reaction rates will increase exponentially and environmental attack...

458

Topological constraints in magnetic field relaxation  

E-Print Network (OSTI)

Stability and reconnection of magnetic fields play a fundamental role in natural and man-made plasma. In these applications the field's topology determines the stability of the magnetic field. Here I will describe the importance of one topology quantifier, the magnetic helicity, which impedes any free decay of the magnetic energy. Further constraints come from the fixed point index which hinders the field to relax into the Taylor state.

Candelaresi, Simon

2013-01-01T23:59:59.000Z

459

Feynman Equation in Hamiltonian Quantum Field Theory  

E-Print Network (OSTI)

Functional Schr\\"{o}dinger equations for interacting fields are solved via rigorous non-perturbative Feynman type integrals.

Alexander Dynin

2000-05-26T23:59:59.000Z

460

Workforce Statistics - Sandia Field Office | National Nuclear...  

National Nuclear Security Administration (NNSA)

Sandia Field Office | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response...

Note: This page contains sample records for the topic "juan volcanic field" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Workforce Statistics - Pantex Field Office | National Nuclear...  

National Nuclear Security Administration (NNSA)

Pantex Field Office | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response...

462

Active molecular plasma in a magnetic field  

SciTech Connect

The propagation of electromagnetic oscillations in an active molecules plasma in a constant external magnetic field is investigated. (AIP)

Kovtun, V.P.

1981-05-01T23:59:59.000Z

463

Natural Gas Depleted Fields Storage Capacity  

U.S. Energy Information Administration (EIA)

-No Data Reported; --= Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Notes: Existing fields ...

464

Generating highly uniform electromagnetic field characteristics  

DOE Patents (OSTI)

An apparatus and method for generating homogenous electromagnetic fields within a volume. The homogeneity provided may be for magnetic and/or electric fields, and for field magnitude, radial gradient, or higher order radial derivative. The invention comprises conductive pathways oriented about a desired region of homogeneity. A corresponding apparatus and method is provided for substantially canceling the electromagnetic field outside of the apparatus, comprising a second set of conductive pathways placed outside the first set.

Crow, James T. (Albuquerque, NM)

1998-01-01T23:59:59.000Z

465

Generating highly uniform electromagnetic field characteristics  

DOE Patents (OSTI)

An apparatus and method for generating homogenous electromagnetic fields within a volume. The homogeneity provided may be for magnetic and/or electric fields, and for field magnitude, radial gradient, or higher order radial derivative. The invention comprises conductive pathways oriented mirror symmetrically about a desired region of homogeneity. A corresponding apparatus and method is provided for substantially canceling the electromagnetic field outside of the apparatus, comprising a second set of conductive pathways placed outside the first set.

Crow, James Terry (Albuquerque, NM)

1998-01-01T23:59:59.000Z

466

Generating highly uniform electromagnetic field characteristics  

DOE Patents (OSTI)

An apparatus and method for generating homogenous electromagnetic fields within a volume. The homogeneity provided may be for magnetic and/or electric fields, and for field magnitude, radial gradient, or higher order radial derivative. The invention comprises conductive pathways oriented mirror symmetrically about a desired region of homogeneity. A corresponding apparatus and method is provided for substantially cancelling the electromagnetic field outside of the apparatus, comprising a second set of conductive pathways placed outside the first set.

Crow, James T. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

467

Generating highly uniform electromagnetic field characteristics  

DOE Patents (OSTI)

An apparatus and method are disclosed for generating homogeneous electromagnetic fields within a volume. The homogeneity provided may be for magnetic and/or electric fields, and for field magnitude, radial gradient, or higher order radial derivative. The invention comprises conductive pathways oriented mirror symmetrically about a desired region of homogeneity. A corresponding apparatus and method is provided for substantially canceling the electromagnetic field outside of the apparatus, comprising a second set of conductive pathways placed outside the first set. 26 figs.

Crow, J.T.

1997-06-24T23:59:59.000Z

468

Generating highly uniform electromagnetic field characteristics  

DOE Patents (OSTI)

An apparatus and method for generating homogeneous electromagnetic fields within a volume is disclosed. The homogeneity provided may be for magnetic and/or electric fields, and for field magnitude, radial gradient, or higher order radial derivative. The invention comprises conductive pathways oriented mirror symmetrically about a desired region of homogeneity. A corresponding apparatus and method is provided for substantially canceling the electromagnetic field outside of the apparatus, comprising a second set of conductive pathways placed outside the first set. 39 figs.

Crow, J.T.

1998-02-10T23:59:59.000Z

469

Generating highly uniform electromagnetic field characteristics  

DOE Patents (OSTI)

An apparatus and method are disclosed for generating homogeneous electromagnetic fields within a volume. The homog