National Library of Energy BETA

Sample records for taupo volcanic zone

  1. Chronology and dynamics of a large silicic magmatic system. Central Taupo volcanic zone, New Zealand

    SciTech Connect (OSTI)

    Houghton, B.F.; Wilson, C.J.N. (Wairakei Research Center, Taupo (New Zealand)); McWilliams, M.O. (Stanford Univ., CA (United States)); Lanphere, M.A.; Pringle, M.S. (Geological Survey, Menlo Park, CA (United States)); Weaver, S.D. (Univ. of Canterbury, Christchurch (New Zealand)); Briggs, R.M. (Univ. of Waikato, Hamilton (New Zealand))

    1995-01-01

    The central Taupo Volcanic Zone in New Zealand is a region of intense Quaternary silicic volcanism accompanying rapid extension of continental crust. At least 34 caldera-forming ignimbrite eruptions have produced a complex sequence of relatively short-lived, nested, and/or overlapping volcanic centers over 1.6 m.y. Silicic volcanism at Taupo is similar to the Yellowstone system in size, longevity, thermal flux, and magma output rate. However, Taupo contrasts with Yellowstone in the exceptionally high frequency, but small size, of caldera-forming eruptions. This contrast reflects the thin, rifted nature of the crust, which precludes the development of long-term magmatic cycles at Taupo. 11 refs., 4 figs., 1 tab.

  2. Geothermal waters from the Taupo Volcanic Zone, New Zealand: Li,1 B and Sr isotopes characterization2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Geothermal waters from the Taupo Volcanic Zone, New Zealand: Li,1 B and Sr isotopes 13 In this study, we report chemical and isotope data for 23 geothermal water samples collected geothermal waters collected from deep boreholes16 in different geothermal fields (Ohaaki, Wairakei, Mokai

  3. Late Quaternary constructional development of the Axial Volcanic Zone, eastern Snake River Plain, Idaho

    E-Print Network [OSTI]

    Wetmore, Paul H.

    Late Quaternary constructional development of the Axial Volcanic Zone, eastern Snake River Plain volcanic ridge that trends northeast across the middle of the eastern Snake River Plain, and acts Snake River Plain: the AVZ, the Big Lost Trough to the north, and the Arco-Big Southern Butte (ABSB

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

    Open Energy Info (EERE)

    and in investigating the behaviors of magma and volcanic fluids. We carried out audio-frequency magnetotelluric surveys around the craters of Naka-dake in 2004 and 2005 to...

  5. Melt zones beneath five volcanic complexes in California: an...

    Open Energy Info (EERE)

    (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...

  6. Melt Zones Beneath Five Volcanic Complexes in California: An...

    Open Energy Info (EERE)

    (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...

  7. Jurassic arc volcanism on Crimea (Ukraine): Implications for the paleo-subduction zone configuration of the Black Sea region

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Jurassic arc volcanism on Crimea (Ukraine): Implications for the paleo-subduction zone margin. Crimea (Ukraine), a peninsula in the northern Black Sea, represents the northernmost region

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

    SciTech Connect (OSTI)

    Goldstein, N.E.; Flexser, S.

    1984-12-01

    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.

  9. AlongStrike Seismic Structure of the Northern Volcanic Zone, Iceland William Menke (1,2), Michael West (1,2), Brynds Brandsdttir (3) and David Sparks (1)

    E-Print Network [OSTI]

    Menke, William

    1 Along­Strike Seismic Structure of the Northern Volcanic Zone, Iceland William Menke (1 Insitute, University of Iceland, Reykjavík, Iceland (Revised for Geophysical Journal International) SUMMARY Seismic data from the B96 array in northern Iceland are used to constrain the compressional and shear

  10. A Distinction Technique Between Volcanic And Tectonic Depression...

    Open Energy Info (EERE)

    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...

  11. Structure and anisotropy of the Mexico subduction zone based on Rayleigh-wave analysis and implications for the geometry of the Trans-Mexican Volcanic Belt

    E-Print Network [OSTI]

    Stubailo, I; Beghein, C; Davis, PM

    2012-01-01

    across the central Mexican volcanic belt at 100 W: Spatialcentral Trans-Mexican volcanic belt, Chem. Geol. , 244(3–4),Trans-Mexican volcanic belt: Slab detachment in a subduction

  12. Conditions for oceans on Earth-like planets orbiting within the habitable zone: importance of volcanic CO{sub 2} degassing

    SciTech Connect (OSTI)

    Kadoya, S. [Department of Earth and Planetary Science, The University of Tokyo, Kiban Bldg. 408, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561 (Japan); Tajika, E., E-mail: kadoya@astrobio.k.u-tokyo.ac.jp, E-mail: tajika@astrobio.k.u-tokyo.ac.jp [Department of Complexity Science and Engineering, The University of Tokyo, Kiban Bldg. 409, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561 (Japan)

    2014-08-01

    Earth-like planets in the habitable zone (HZ) have been considered to have warm climates and liquid water on their surfaces if the carbonate-silicate geochemical cycle is working as on Earth. However, it is known that even the present Earth may be globally ice-covered when the rate of CO{sub 2} degassing via volcanism becomes low. Here we discuss the climates of Earth-like planets in which the carbonate-silicate geochemical cycle is working, with focusing particularly on insolation and the CO{sub 2} degassing rate. The climate of Earth-like planets within the HZ can be classified into three climate modes (hot, warm, and snowball climate modes). We found that the conditions for the existence of liquid water should be largely restricted even when the planet is orbiting within the HZ and the carbonate-silicate geochemical cycle is working. We show that these conditions should depend strongly on the rate of CO{sub 2} degassing via volcanism. It is, therefore, suggested that thermal evolution of the planetary interiors will be a controlling factor for Earth-like planets to have liquid water on their surface.

  13. ORIGINAL PAPER Late Miocene to Pleistocene potassic volcanism

    E-Print Network [OSTI]

    ORIGINAL PAPER Late Miocene to Pleistocene potassic volcanism in the Republic of Macedonia Yotzo Abstract The potassic (K) to ultrapotassic (UK) volcanic rocks cropping out in the Vardar Zone of Macedonia are located in the large Kozuf Massif (Voras Massif in Greece) at the Macedonia­Greek border. Three distinct

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

    Open Energy Info (EERE)

    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,...

  15. Modeling volcanic ash dispersal

    ScienceCinema (OSTI)

    None

    2011-10-06

    Explosive volcanic eruptions inject into the atmosphere large amounts of volcanic material (ash, blocks and lapilli). Blocks and larger lapilli follow ballistic and non-ballistic trajectories and fall rapidly close to the volcano. In contrast, very fine ashes can remain entrapped in the atmosphere for months to years, and may affect the global climate in the case of large eruptions. Particles having sizes between these two end-members remain airborne from hours to days and can cover wide areas downwind. Such volcanic fallout entails a serious threat to aircraft safety and can create many undesirable effects to the communities located around the volcano. The assessment of volcanic fallout hazard is an important scientific, economic, and political issue, especially in densely populated areas. From a scientific point of view, considerable progress has been made during the last two decades through the use of increasingly powerful computational models and capabilities. Nowadays, models are used to quantify hazard scenarios and/or to give short-term forecasts during emergency situations. This talk will be focused on the main aspects related to modeling volcanic ash dispersal and fallout with application to the well known problem created by the Eyjafjöll volcano in Iceland. Moreover, a short description of the main volcanic monitoring techniques is presented.

  16. Collaborative Studies Target Volcanic Hazards in Central America Gregg J. S. Bluth and William I. Rose

    E-Print Network [OSTI]

    Bluth, Gregg

    America is the second-most consistently active volcanic zone on Earth, after Indonesia. Centuries. This agency is responsible for hazard education, as well as recommending evacuation routes and relief shelters

  17. Genesis of large siliceous stromatolites at Frying Pan Lake, Waimangu geothermal field, North Island, New Zealand

    E-Print Network [OSTI]

    Konhauser, Kurt

    Genesis of large siliceous stromatolites at Frying Pan Lake, Waimangu geothermal field, North by various microbes (Riding, 1991), are common in hot-spring systems in the geo- thermal areas of Yellowstone in the geothermal systems of the Taupo Volcanic Zone (TVZ) on the North Island of New Zealand have been termed

  18. Volcanism Studies: Final Report for the Yucca Mountain Project

    SciTech Connect (OSTI)

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

    1998-12-01

    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

  19. Sensitivity Analysis Of Hydrological Parameters In Modeling Flow And Transport In The Unsaturated Zone Of Yucca Mountain

    E-Print Network [OSTI]

    Zhang, Keni; Wu, Yu-Shu; Houseworth, James E

    2006-01-01

    Unsaturated Zone of Yucca Mountain Keni Zhang, Yu-Shu Wu,volcanic deposits at Yucca Mountain have been intensivelyhydraulic properties, Yucca Mountain Introduction Site

  20. Rock to Regolith Earth's Critical Zone on Volcanic Ocean Islands

    E-Print Network [OSTI]

    Geist, Dennis

    increases monotonically towards surface #12;Frost creep transport Frequency and depth of freezing event (f in a landscape? (the w question) What governs the efficiency of regolith transport? (the Q question) What lens growth #12;Ice lenses in soils Ice lenses in rock Water freezing in soil and rocks Murton et al

  1. Saturated Zone Plumes in Volcanic Rock: Implications for Yucca Mountain

    SciTech Connect (OSTI)

    S. Kelkar; R. Roback; B. Robinson; G. Srinivasan; C. Jones; P. Reimus

    2006-02-14

    This paper presents a literature survey of the occurrences of radionuclide plumes in saturated, fractured rocks. Three sites, Idaho National laboratory, Hanford, and Oak Ridge are discussed in detail. Results of a modeling study are also presented showing that the length to width ratio of a plume starting within the repository footprint at the Yucca Mountain Project site, decreases from about 20:1 for the base case to about 4:1 for a higher value of transverse dispersivity, indicating enhanced lateral spreading of the plume. Due to the definition of regulatory requirements, this lateral spreading does not directly impact breakthrough curves at the 18 km compliance boundary, however it increases the potential that a plume will encounter reducing conditions, thus significantly retarding the transport of sorbing radionuclides.

  2. Eruptive history and petrochemistry of the Bulusan volcanic complex: Implications for the hydrothermal system and volcanic hazards of Mt. Bulusan, Philippines

    SciTech Connect (OSTI)

    Delfin, F.G. Jr.; Panem, C.C.; Defant, M.J.

    1993-10-01

    Two contrasting conceptual models of the postcaldera magmatic system of the Bulusan volcanic complex are constructed on the basis of a synthesis of volcanological, petrochemical, and petrologic data. These models predict that hydrothermal convection below the complex will occur either in discrete, structurally-focused zones or over a much broader area. Both models, however, agree that hydrothermal fluids at depth will be highly acidic and volcanic-related. Future ash-fall eruptions and mudflows are likely to affect the area previously chosen for possible drilling. Such risks, combined with the expected acidic character of the hydrothermal system, argue against drilling into this system.

  3. SYSTHESIS OF VOLCANISM STUDIES FOR THE YUCCA MOUNTAIN SITE CHARACTERIZATION PROJECT

    SciTech Connect (OSTI)

    Perry, F. V.; Crowe, G. A.; Valentine, G. A.; Bowker, L. M.

    1997-09-23

    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

  4. The volcanic ash problem Bernd Zimanowski a;

    E-Print Network [OSTI]

    The volcanic ash problem Bernd Zimanowski a;Ã , Kenneth Wohletz b , Pierfrancesco Dellino c , Ralf are the result of intensive magma and rock fragmentation, and they produce volcanic ash, which consists of fragments 6 2 mm in average diameter. The problem with volcanic ash is that its formation is poorly

  5. The Occurrence of Pyrrhotite in the Ngawha Geothermal System, New Zealand

    SciTech Connect (OSTI)

    Cox, M.E.; Browne, P.R.L.

    1995-01-01

    The Ngawha geothermal system is low in all sulfide minerals, but in comparison to systems in the Taupo Volcanic Zone it contains more widely distributed pyrrhotite which is currently depositing, mainly in fractures. This reflects the high proportion of vapor in the Ngawha system. Pyrrhotite is most common in the upper part of the reservoir and lower part of the aquitard. The Ngawha pyrrhotite is of monoclinic and monoclinic + hexagonal structure.

  6. Disruptive event analysis: volcanism and igneous intrusion

    SciTech Connect (OSTI)

    Crowe, B.M.

    1980-08-01

    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.

  7. Post glacial volcanism and magmatism on the Askja volcanic system, North Iceland 

    E-Print Network [OSTI]

    Hartley, Margaret Elizabeth

    2012-06-25

    Postglacial activity on the Askja volcanic system, north Iceland, has been dominated by basaltic volcanism. Over 80% of Askja's postglacial basalts fall within a relatively narrow compositional range containing between 4 and 8 wt.% MgO. The 'main...

  8. Sensitivity Analysis Of Hydrological Parameters In Modeling Flow And Transport In The Unsaturated Zone Of Yucca Mountain

    E-Print Network [OSTI]

    Zhang, Keni; Wu, Yu-Shu; Houseworth, James E

    2006-01-01

    Unsaturated Zone of Yucca Mountain Keni Zhang, Yu-Shu Wu,volcanic deposits at Yucca Mountain have been intensivelythe spatial domain of the mountain. This paper reports on a

  9. STUDIES IN GEOPHYSICS 4'~xplosiveVolcanism:-

    E-Print Network [OSTI]

    in diameter, (4) steam production at temperatures of 10(PC to high levels of superheating(300 . - to WC!. and pressures. The explosions featured ejection of steam and fragmented melt. The modeled volcanic phenomena of water superheating. INTRODUCTION The understanding of explosive volcanism has been limited

  10. Blind Geothermal System Exploration in Active Volcanic Environments...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Multi-phase Geophysical and Geochemical Surveys in Overt & Subtle Volcanic Systems, Hawaii & Maui Blind Geothermal System Exploration in Active Volcanic Environments;...

  11. Effects of Volcanism, Crustal Thickness, and Large Scale Faulting...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Effects of Volcanism, Crustal Thickness, and Large Scale Faulting on the Development and Evolution of Geothermal Systems: Collaborative Project in Chile Effects of Volcanism,...

  12. Saturated Zone Colloid Transport

    SciTech Connect (OSTI)

    H. S. Viswanathan

    2004-10-07

    This scientific analysis provides retardation factors for colloids transporting in the saturated zone (SZ) and the unsaturated zone (UZ). These retardation factors represent the reversible chemical and physical filtration of colloids in the SZ. The value of the colloid retardation factor, R{sub col} is dependent on several factors, such as colloid size, colloid type, and geochemical conditions (e.g., pH, Eh, and ionic strength). These factors are folded into the distributions of R{sub col} that have been developed from field and experimental data collected under varying geochemical conditions with different colloid types and sizes. Attachment rate constants, k{sub att}, and detachment rate constants, k{sub det}, of colloids to the fracture surface have been measured for the fractured volcanics, and separate R{sub col} uncertainty distributions have been developed for attachment and detachment to clastic material and mineral grains in the alluvium. Radionuclides such as plutonium and americium sorb mostly (90 to 99 percent) irreversibly to colloids (BSC 2004 [DIRS 170025], Section 6.3.3.2). The colloid retardation factors developed in this analysis are needed to simulate the transport of radionuclides that are irreversibly sorbed onto colloids; this transport is discussed in the model report ''Site-Scale Saturated Zone Transport'' (BSC 2004 [DIRS 170036]). Although it is not exclusive to any particular radionuclide release scenario, this scientific analysis especially addresses those scenarios pertaining to evidence from waste-degradation experiments, which indicate that plutonium and americium may be irreversibly attached to colloids for the time scales of interest. A section of this report will also discuss the validity of using microspheres as analogs to colloids in some of the lab and field experiments used to obtain the colloid retardation factors. In addition, a small fraction of colloids travels with the groundwater without any significant retardation. Radionuclides irreversibly sorbed onto this fraction of colloids also transport without retardation. The transport times for these radionuclides will be the same as those for nonsorbing radionuclides. The fraction of nonretarding colloids developed in this analysis report is used in the abstraction of SZ and UZ transport models in support of the total system performance assessment (TSPA) for the license application (LA). This analysis report uses input from two Yucca Mountain Project (YMP) analysis reports. This analysis uses the assumption from ''Waste Form and In-Drift Colloids-Associated Radionuclide Concentrations: Abstraction and Summary'' that plutonium and americium are irreversibly sorbed to colloids generated by the waste degradation processes (BSC 2004 [DIRS 170025]). In addition, interpretations from RELAP analyses from ''Saturated Zone In-Situ Testing'' (BSC 2004 [DIRS 170010]) are used to develop the retardation factor distributions in this analysis.

  13. 2001 TRAFFIC ZONE BOUNDARIES Zone Numbers

    E-Print Network [OSTI]

    Toronto, University of

    2001 TRAFFIC ZONE BOUNDARIES Zone Numbers & Detailed Definitions #12;2001 TRAFFIC ZONE BOUNDARIES of Toronto Joint Program in Transportation January 2003 #12;PREFACE This report presents the 2001 traffic zone numbers by local municipalities in the 2001 TTS survey area. The second part presents detailed

  14. TESTING MODELS FOR BASALTIC VOLCANISM: IMPLICATIONS FOR YUCCA MOUNTAIN, NEVADA

    E-Print Network [OSTI]

    Conrad, Clint

    TESTING MODELS FOR BASALTIC VOLCANISM: IMPLICATIONS FOR YUCCA MOUNTAIN, NEVADA Eugene Smith 1 The determination of volcanic risk to the proposed high- level nuclear waste repository at Yucca Mountain requires, then volcanism in the future may not be a significant threat to Yucca Mountain. On the other hand, if melting

  15. Zone separator for multiple zone vessels

    DOE Patents [OSTI]

    Jones, John B. (Grand Junction, CO)

    1983-02-01

    A solids-gas contact vessel, having two vertically disposed distinct reaction zones, includes a dynamic seal passing solids from an upper to a lower zone and maintaining a gas seal against the transfer of the separate treating gases from one zone to the other, and including a stream of sealing fluid at the seal.

  16. Uranium mineralization in fluorine-enriched volcanic rocks

    SciTech Connect (OSTI)

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

    1980-09-01

    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).

  17. Surface Gas Sampling At Lassen Volcanic National Park Area (Janik...

    Open Energy Info (EERE)

    Surface Gas Sampling At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Surface Gas...

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

    Open Energy Info (EERE)

    Central Japan Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Active System For Monitoring Volcanic Activity- A Case Study Of The...

  19. Data Acquisition-Manipulation At Lassen Volcanic National Park...

    Open Energy Info (EERE)

    Data Acquisition-Manipulation At Lassen Volcanic National Park Geothermal Area (1982) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Data...

  20. Static Temperature Survey At Lassen Volcanic National Park Area...

    Open Energy Info (EERE)

    Static Temperature Survey At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Static...

  1. Seismic and infrasonic source processes in volcanic fluid systems

    E-Print Network [OSTI]

    Matoza, Robin S.

    2009-01-01

    into a volcano-seismic source process in low-viscosityDIEGO Seismic and infrasonic source processes in volcanicTHE DISSERTATION Seismic and infrasonic source processes in

  2. Geothermal Literature Review At San Francisco Volcanic Field...

    Open Energy Info (EERE)

    Geothermal Literature Review At San Francisco Volcanic Field Area (Morgan, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  3. A Volcanologist'S Review Of Atmospheric Hazards Of Volcanic Activity...

    Open Energy Info (EERE)

    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...

  4. Temporal Relations of Volcanism and Hydrothermal Systems in Two...

    Open Energy Info (EERE)

    Geology, 1989 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Temporal Relations of Volcanism and Hydrothermal Systems in Two Areas of...

  5. 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...

  6. Numerical simulations of volcanic jets: Importance of vent overpressure

    E-Print Network [OSTI]

    Ogden, Darcy E.; Wohletz, Kenneth H.; Glatzmaier, Gary A.; Brodsky, Emily E.

    2008-01-01

    Laboratory studies of volcanic jets, J. Geophys. Res. , 89(Analysis of supersonic air jets, Phys. Rev. , 76(5), 662 –and dynamics of supersonic jets, Astron. Astrophys. , 113(

  7. Teleseismic-Seismic Monitoring At Lassen Volcanic National Park...

    Open Energy Info (EERE)

    Teleseismic-Seismic Monitoring At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  8. CT Scan of Earth Links Mantle Plumes with Volcanic Hotspots

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of Earth Links Mantle Plumes with Volcanic Hotspots Simulations Run at NERSC Show How Seismic Waves Travel Through Mantle September 2, 2015 Robert Sanders, rlsanders@berkeley.edu,...

  9. Late Cenozoic volcanism, geochronology, and structure of the...

    Open Energy Info (EERE)

    Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Inyo County, California Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

  10. Volcanism, Structure, and Geochronology of Long Valley Caldera...

    Open Energy Info (EERE)

    Volcanism, Structure, and Geochronology of Long Valley Caldera, Mono County, California Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

  11. Measurement of the Optical Proper-ties of Volcanic Ash

    E-Print Network [OSTI]

    Oxford, University of

    Measurement of the Optical Proper- ties of Volcanic Ash Daniel M. Peters and R. G. Grainger of Volcanic Ash". This project will measure vol- canic ash aerosol extinction spectra and the aerosol particle is required in the analysis of IR satellite observations of ash clouds. Dry, water ice and sulphuric acid

  12. Optical properties of volcanic ash Dan M. Peters1

    E-Print Network [OSTI]

    Oxford, University of

    Optical properties of volcanic ash Dan M. Peters1 , Roy G. Grainger1 , Robert McPheat2 , Ben Reed1 volcanic ash clouds remotely. Current meth- ods of detection use wavelengths from the UV to infra-red both of the ash. As ash composition varies from eruption to eruption the refractive index also differs; our aim

  13. Hengill geothermal volcanic complex (Iceland) characterized by integrated geophysical observations

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Hengill geothermal volcanic complex (Iceland) characterized by integrated geophysical observations Cedex 02, France. 2 GeoForschungsZentrum Potsdam - Section 2.2, 14473 Potsdam, Germany. 3 Iceland GeoSurvey - ISOR , 108 Reykjavík, Iceland Abstract Structural features of volcanic and hydrothermal systems can

  14. ORIGINAL PAPER Volcanic tsunami: a review of source mechanisms, past

    E-Print Network [OSTI]

    Belousov, Alexander

    ORIGINAL PAPER Volcanic tsunami: a review of source mechanisms, past events and hazards Asia has had both volcanic tsunamis and possesses some of the most densely populated, economically tsunami hazard in Southeast Asia. Source mechanisms of tsunami related to eruptive and gravitational

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

    SciTech Connect (OSTI)

    Mark Leon Gwynn

    2010-05-01

    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.

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

    SciTech Connect (OSTI)

    Mark Leon Gwynn

    2010-05-01

    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.

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

    SciTech Connect (OSTI)

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

    2010-12-02

    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.

  18. Renewable Energy Renaissance Zones

    Broader source: Energy.gov [DOE]

    For the purposes of renaissance zone designation, “renewable energy facility” means a facility that creates energy, fuels, or chemicals directly from the wind, the sun, trees, grasses, biosolids,...

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

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton JumpProgram | OpenEnergyEvaluationOpen EnergyEnergyVolcano, As

  20. Melt Zones Beneath Five Volcanic Complexes in California: An Assessment of

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource HistoryScenariosMarysville MtMedical Area Total Egy Plt Inc

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

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource HistoryScenariosMarysville MtMedical Area Total Egy Plt Incshallow magma

  2. Application Of Gravity And Deep Dipole Geoelectrics In The Volcanic...

    Open Energy Info (EERE)

    Application Of Gravity And Deep Dipole Geoelectrics In The Volcanic Area Of Mt Etna (Sicily) Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

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

    Open Energy Info (EERE)

    Pico Island, Azores Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Morphometric Analysis Of The Submarine Volcanic Ridge South-East Of Pico...

  4. Cenozoic volcanic geology of the Basin and Range province in...

    Open Energy Info (EERE)

    Cenozoic volcanic geology of the Basin and Range province in Hidalgo County, southwestern New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference...

  5. The dynamics of genetic and morphological variation on volcanic islands

    E-Print Network [OSTI]

    Thorpe, Roger Stephen

    : volcanism; phylogeography; geographical variation; natural selection; Canary islands; Tarentola 1 and Canary islands). It has been argued that population extinctions, recolonizations and associ- ated a role in shaping geographical variation. The islands of the Canary Archipelago provide an excellent

  6. The Eyjafjallajkull volcanic system, Iceland: insights from electromagnetic measurements

    E-Print Network [OSTI]

    Jones, Alan G.

    The Eyjafjallajökull volcanic system, Iceland: insights from electromagnetic measurements Journal; Iceland Geosurvey, Vilhjálmsson, Arnar; Iceland Geosurvey, Keywords: Magnetotellurics system, Iceland: insights from1 electromagnetic measurements2 Marion P. Miensopust1,2, , Alan G. Jones1

  7. Non-Volcanic Stratospheric Aerosol Trends: 1971 2004

    E-Print Network [OSTI]

    Deshler, Terry

    et al., 1997]. The impact of sulfur rich volcanic eruptions then became obvious and these have been which began in the 1970s, have captured the complete cycle for three major eruptions with a global

  8. Effect of volcanic eruptions on the hydrological cycle 

    E-Print Network [OSTI]

    Iles, Carley Elizabeth

    2014-11-27

    Large explosive volcanic eruptions inject SO2 into the stratosphere where it is oxidised to sulphate aerosols which reflect sunlight. This causes a reduction in global temperature and precipitation lasting a few years. ...

  9. Opportunity and Enterprise Zones (Oklahoma)

    Broader source: Energy.gov [DOE]

    Opportunity and Enterprise Zones provide enhanced financial incentives for businesses located in such zones aimed at stimulating economic expansion in rural and disadvantaged communities...

  10. EnginEEring ZonE "The Engineering Zone

    E-Print Network [OSTI]

    Tobar, Michael

    EnginEEring ZonE "The Engineering Zone will push the limits in collaborative learning and research, and empower people to change the world. "Winthrop Professor John Dell Dean, Faculty of Engineering, Computing and Mathematics #12;2 | nEw CEntury Campaign ­ EnginEEring ZonE #12;nEw CEntury Campaign ­ EnginEEring ZonE | 3

  11. A multidisciplinary effort to assign realistic source parameters to models of volcanic ash-cloud transport and dispersion during eruptions

    E-Print Network [OSTI]

    Rose, William I.

    A multidisciplinary effort to assign realistic source parameters to models of volcanic ash: volcanic eruption aircraft volcanic plumes ash clouds During volcanic eruptions, volcanic ash transport and dispersion models (VATDs) are used to forecast the location and movement of ash clouds over hours to days

  12. Alkali and Halogen Chemistry in Volcanic Gases on Io

    E-Print Network [OSTI]

    Laura Schaefer; Bruce Fegley Jr

    2004-09-20

    We use chemical equilibrium calculations to model the speciation of alkalis and halogens in volcanic gases emitted on Io. The calculations cover wide temperature (500-2000 K) and pressure (10^-6 to 10^+1 bars) ranges, which overlap the nominal conditions at Pele (T = 1760 K, P = 0.01 bars). About 230 compounds of 11 elements (O, S, Li, Na, K, Rb, Cs, F, Cl, Br, I) are considered. We predict the major alkali and halogen species in a Pele-like volcanic gas and the major alklai and halogen condensates. We also model disequilibrium chemistry of the alkalis and halogens in the volcanic plume. Based on this work and our prior modeling for Na, K, and Cl in a volcanic plume, we predict the major loss processes for the alkali halide gases are photolysis and/or condensation onto grains. On the basis of elemental abundances and photochemical lifetimes, we recommend searching for gaseous KCl, NaF, LiF, LiCl, RbF, RbCl, CsF, and CsCl around volcanic vents during eruptions. Based on abundance considerations and observations of brown dwarfs, we also recommend a search of Io's extended atmosphere and the Io plasma torus for neutral and ionized Li, Cs, Rb, and F.

  13. Modelling risk and risking models: the diffusive boundary between science and policy in volcanic risk assessment

    E-Print Network [OSTI]

    Donovan, Amy R.; Oppenheimer, Clive

    2014-11-27

    This article examines the science-policy interface in volcanic risk assessment. It analyses empirical data from research on Montserrat, where new volcanic risk assessment methodologies were pioneered. We discuss the ways in which these methods...

  14. Infrasonic observations of the June 2009 Sarychev Peak eruption, Kuril Islands: Implications for infrasonic monitoring of remote explosive volcanism

    E-Print Network [OSTI]

    2011-01-01

    3):  1012-­?1032.   SVERT  (Sakhalin  Volcanic  Eruptions  Korea   Alexander  Rybin   Sakhalin  Volcanic  Eruptions  Paramushir,  Iturup  and  Sakhalin  at  distances  of  352  

  15. Unsaturated Zone I. Overview

    E-Print Network [OSTI]

    Chapter 2 Unsaturated Zone I. Overview If the Yucca Mountain site is deemed suitable for re of the extent of welding, the tuffs within the UZ at Yucca Mountain are grouped informally into hydrogeologic Yucca Mountain is illustrated in Figure 2-1 on page 14. A. Why UZ Was Chosen Initial studies of Yucca

  16. SO2 as a proxy for volcanic ash in aviation hazard avoidance

    E-Print Network [OSTI]

    Oxford, University of

    SO2 as a proxy for volcanic ash in aviation hazard avoidance Infrared Atmospheric Sounding Interferometer - IASI ABSTRACT: Airborne volcanic ash poses a significant danger to aircraft but is difficult accurately. This paper looks at the reliability of using SO2 as a proxy for the location of volcanic ash

  17. Measurement of the Optical Proper-ties of Volcanic Ash: Current status.

    E-Print Network [OSTI]

    Oxford, University of

    Measurement of the Optical Proper- ties of Volcanic Ash: Current status. Daniel M. Peters and R. G project "Opti- cal Properties of Volcanic ash". This project sets out to measure the extinction spectra and size distribution of volcanic ash aerosol. The measurements will allow the calculation of aerosol cross

  18. Scattering matrices of volcanic ash particles of Mount St. Helens, Redoubt, and Mount Spurr Volcanoes

    E-Print Network [OSTI]

    Rose, William I.

    Scattering matrices of volcanic ash particles of Mount St. Helens, Redoubt, and Mount Spurr particles taken from seven samples of volcanic ashes corresponding to four different volcanic eruptions. The samples studied contain large mass fractions of fine particles and were chosen to represent ash that could

  19. 1. INTRODUCTION Volcanic eruptions have been an important cause of

    E-Print Network [OSTI]

    Robock, Alan

    opportunity to study the workings of the climate system, to test climate models, and to exam- ine the impacts aftermath will undoubtedly enhance our understanding of the climate system. Volcanism and the Earth was a large but relatively short- lived shock to the Earth's atmosphere. It thus provided an excellent

  20. Wednesday, March 25, 2009 VENUS GEOLOGY, VOLCANISM, TECTONICS, AND RESURFACING

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Wednesday, March 25, 2009 VENUS GEOLOGY, VOLCANISM, TECTONICS, AND RESURFACING 3:00 p.m. Waterway. The Geological History of Venus: Constraints from Buffered Crater Densities [#1096] We apply buffered crater density technique to a new global geological map of Venus (Ivanov, 2008) and obtain robust constraints

  1. Radiant zone heated particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2011-12-27

    A system includes a particulate matter (PM) filter including an upstream end for receiving exhaust gas and a downstream end. A radiant zoned heater includes N zones, where N is an integer greater than one, wherein each of the N zones includes M sub-zones, where M is an integer greater than or equal to one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones, restricts exhaust gas flow in a portion of the PM filter that corresponds to the selected one of the N zones, and deactivates non-selected ones of the N zones.

  2. Santa Clara County- Zoning Ordinance

    Broader source: Energy.gov [DOE]

    Santa Clara County's Zoning Ordinance includes standards for wind and solar structures for residential, agricultural, and commercial uses.

  3. Analysis and correlation of volcanic ash in marine sediments from the Peru Margin, Ocean Drilling Program Leg 201: explosive volcanic cycles of the north-central Andes 

    E-Print Network [OSTI]

    Hart, Shirley Dawn

    2007-04-25

    -1 ANALYSIS AND CORRELATION OF VOLCANIC ASH IN MARINE SEDIMENTS FROM THE PERU MARGIN, OCEAN DRILLING PROGRAM LEG 201: EXPLOSIVE VOLCANIC CYCLES OF THE NORTH-CENTRAL ANDES A Thesis by SHIRLEY DAWN HART Submitted to the Office of Graduate Studies... MARGIN, OCEAN DRILLING PROGRAM LEG 201: EXPLOSIVE VOLCANIC CYCLES OF THE NORTH-CENTRAL ANDES A Thesis by SHIRLEY DAWN HART Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

  4. INTERNATIONAL DATA Roaming Data Zones

    E-Print Network [OSTI]

    Burton, Geoffrey R.

    (including Canary Islands, Ceuta and Melilla), Sweden, Switzerland, Vatican City (Italy) Zones 3 ­ 7 All Islands Guernsey, Jersey, Republic of Ireland, Isle of Man Zone 2 EE Business Zone Andorra, Austria, Belgium, Bulgaria, Cyprus (South), Czech Republic, Denmark, Estonia, Finland (including Aland Islands

  5. Vadose zone water fluxmeter

    DOE Patents [OSTI]

    Faybishenko, Boris A.

    2005-10-25

    A Vadose Zone Water Fluxmeter (WFM) or Direct Measurement WFM provides direct measurement of unsaturated water flow in the vadose zone. The fluxmeter is a cylindrical device that fits in a borehole or can be installed near the surface, or in pits, or in pile structures. The fluxmeter is primarily a combination of tensiometers and a porous element or plate in a water cell that is used for water injection or extraction under field conditions. The same water pressure measured outside and inside of the soil sheltered by the lower cylinder of the fluxmeter indicates that the water flux through the lower cylinder is similar to the water flux in the surrounding soil. The fluxmeter provides direct measurement of the water flow rate in the unsaturated soils and then determines the water flux, i.e. the water flow rate per unit area.

  6. Atmospheric correction for satellite-based volcanic ash mapping and retrievals using ``split window'' IR data from GOES and AVHRR

    E-Print Network [OSTI]

    Rose, William I.

    Atmospheric correction for satellite-based volcanic ash mapping and retrievals using ``split window 17 September 2001; published 29 August 2002. [1] Volcanic ash in volcanic clouds can be mapped in two of the volcanic cloud, and the mass of fine ash in the cloud. Both the mapping and the retrieval scheme are less

  7. Liquid zone seal

    DOE Patents [OSTI]

    Klebanoff, Leonard E. (Dublin, CA)

    2001-01-01

    A seal assembly that provides a means for establishing multiple pressure zones within a system. The seal assembly combines a plate extending from the inner wall of a housing or inner enclosure that intersects with and is immersed in the fluid contained in a well formed in a tray contained within the enclosure. The fluid is a low vapor pressure oil, chemically inert and oxidation resistant. The use of a fluid as the sealing component provides a seal that is self-healing and mechanically robust not subject to normal mechanical wear, breakage, and formation of cracks or pinholes and decouples external mechanical vibrations from internal structural members.

  8. Blind Geothermal System Exploration in Active Volcanic Environments...

    Open Energy Info (EERE)

    within the Haleakala Southwest Rift Zone (HSWRZ); the faults of which are the main drilling targets - Demonstrate viability, usefulness and cost-effectiveness of merged...

  9. Predicted Abundances of Carbon Compounds in Volcanic Gases on Io

    E-Print Network [OSTI]

    Laura Schaefer; Bruce Fegley Jr

    2004-09-17

    We use chemical equilibrium calculations to model the speciation of carbon in volcanic gases on Io. The calculations cover wide temperature (500-2000 K), pressure (10^-8 to 10^+2 bars), and composition ranges (bulk O/S atomic ratios \\~0 to 3), which overlap the nominal conditions at Pele (1760 K, 0.01 bar, O/S ~ 1.5). Bulk C/S atomic ratios ranging from 10^-6 to 10^-1 in volcanic gases are used with a nominal value of 10^-3 based upon upper limits from Voyager for carbon in the Loki plume on Io. Carbon monoxide and CO2 are the two major carbon gases under all conditions studied. Carbonyl sulfide and CS2 are orders of magnitude less abundant. Consideration of different loss processes (photolysis, condensation, kinetic reactions in the plume) indicates that photolysis is probably the major loss process for all gases. Both CO and CO2 should be observable in volcanic plumes and in Io's atmosphere at abundances of several hundred parts per million by volume for a bulk C/S ratio of 10^-3.

  10. Status of volcanism studies for the Yucca Mountain Site Characterization Project

    SciTech Connect (OSTI)

    Crowe, B.; Perry, F.; Murrell, M.; Poths, J.; Valentine, G.A. [Los Alamos National Lab., NM (United States); Wells, S. [Univ. of California, Riverside, CA (United States); Bowker, L.; Finnegan, K. [Univ. of Nevada, Las Vegas, NV (United States); Geissman, J.; McFadden, L.

    1995-02-01

    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. 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 Lathrop Wells volcanic center is described in detail because it is the youngest basalt center in the YMR. Chapter 3 describes the tectonic setting of the YMR and presents and assesses the significance of multiple alternative tectonic models. 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. The long time of activity and characteristic small volume of the Postcaldera basalt of the YMR result in one of the lowest eruptive rates in a volcanic field in the southwest United States. Chapter 5 summarizes current concepts of the segregation, ascent, and eruption of basalt magma. Chapter 6 summarizes the history of volcanism studies (1979 through early 1994), including work for the Yucca Mountain Site Characterization Project and overview studies by the state of Nevada and the Nuclear Regulatory Commission. Chapter 7 summarizes probabilistic volcanic hazard assessment using a three-part conditional probability model. Chapter 8 describes remaining volcanism work judged to be needed to complete characterization studies for the YMR. Chapter 9 summarizes the conclusions of this volcanism status report.

  11. Western Renewable Energy Zones (Presentation)

    SciTech Connect (OSTI)

    Hein, J.

    2011-06-01

    This presentation summarizes recent developments and trends pertaining to competitive renewable energy zones, transmission planning and the integration of renewable generation resources.

  12. Near-field/altered-zone models report

    SciTech Connect (OSTI)

    Hardin, E. L., LLNL

    1998-03-01

    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

  13. Tephrochronology and Stratigraphy of Eocene and Oligocene Volcanic Ashes of East and Central Texas 

    E-Print Network [OSTI]

    Heintz, Mindi

    2013-12-02

    AND STRATIGRAPHY OF EOCENE AND OLIGOCENE VOLCANIC ASHES OF EAST AND CENTRAL TEXAS A Thesis by MINDI HEINTZ Submitted to the Office of Graduate Studies and Professional Studies of Texas A&M University in partial fulfillment of the requirements... Page Figure 1. Location of volcanic ash samples ..................................................................... 2 Figure 2. Stratigraphy for the study location showing the position of the volcanic ash beds studied in this report...

  14. The Long Valley/Mono Basin Volcanic Complex: A Preliminary Magnetotell...

    Open Energy Info (EERE)

    that such techniques are profoundly affected by the highly three-dimensional structures associated with these complicated volcanic terranes. We argue that while simple...

  15. Uranium and thorium decay series disequilibria in young volcanic rocks

    SciTech Connect (OSTI)

    Williams, R.W.

    1988-01-01

    Two of the central questions in igneous geochemistry that study of radioactive disequilibria can help to answer are: what are the rates of magma genesis; and what are the timescales of magma separation and transport. In addition to the temporal information that may be extracted from disequilibria data, the {sup 230}Th/{sup 232}Th of a young rock may be used as a tracer of the Th/U ratio of its source region. Measurements were made by isotope dilution alpha-spectrometry of {sup 238}U, {sup 234}U, {sup 230}Th, and {sup 232}Th in 20 subduction related, 3 oceanic intraplate, and 10 continental intraplate volcanics. {sup 210}Pb was measured in all, {sup 226}Ra was measured in about half, and {sup 228}Th was measured in 10 of the most recent samples. Disequilibrium between {sup 228}Th and {sup 232}Th was found only in the Nacarbonatite samples from Oldoinyo Lengai volcano in Tanzania, which is attributable to {sup 228}Ra/{sup 232}Th {approximately} 27 at the time of eruption. These rocks also have {sup 226}Ra/{sup 230}Th > 60. Three Ra-enrichment models are developed which constrain carbonatite magma formation at less than 20 years before eruption. The effects of different partial melting processes on the {sup 238}U decay series are investigated. If mid-ocean ridge basalts are formed by a dynamic melting process, the {sup 230}Th/{sup 232}Th of the basalts provides a minimum estimate of the Th/U ratio of the source region. The {sup 238}U enrichment in arc volcanics is probably the results of metasomatism of the source by fluids derived from the subducting slab, and the {sup 230}Th enrichment observed for other volcanics is probably due to the partial melting process in the absence of U-bearing fluids.

  16. GLORIA mosaic of the U. S. Hawaiian exclusive economic zone

    SciTech Connect (OSTI)

    Torresan, M.E. )

    1990-06-01

    Digital long-range side-scan sonar reconnaissance surveys using GLORIA have imaged about 65% of the nearly 2.4 million km{sup 2} of the Hawaiian EEZ. The images have been processed and compiled into one mosaic that comprises the EEZ area surrounding the principal Hawaiian islands (from Hawaii to Kauai); extending on the south side of the ridge west to Kure Island, and on the north side to St. Rogatien Bank. The GLORIA images depict a variety of features that include enormous slumps and debris avalanches, lava flows, seafloor spreading fabric, fracture zones, seamounts, and unusual sedimentation patterns with more detail than previously had been possible with typical seismic reflection techniques. Some of these features were unknown before the GLORIA surveys. In particular, the GLORIA images show that the major degradational processes that affect the island and ridge areas are massive, likely tsunamogenic, blocky debris avalanches and slumps. These failures mantle the flanks of the ridge; some extending across the trough and up on to the Hawaiian Arch (up to 230 km from their sources). Over 30 failures are identified, ranging in area from 250 to > 6,000 km{sup 2} and having volumes from 500 to > 5,000 km{sup 3}. Such deposits cover > 125,000 km{sup 3} of the Ridge and adjacent seafloor. Also imaged are large Cenozoic submarine volcanic flow fields situated on the Hawaiian Arch. One such field, the North Arch field, is located north of Oahu between the Molokai and Murray fracture zones, and covers about 200,000 km{sup 2}. Prior to the GLORIA imagery only a small portion of this flow field was mapped. In addition, the imagery depicts the finer details of the Molokai and Murray fracture zones, the Cretaceous seafloor spreading fabric, and tensional faults on the Hawaiian Arch.

  17. Model limits on the role of volcanic carbon emissions in regulating glacialinterglacial CO2 variations

    E-Print Network [OSTI]

    Fortunat, Joos

    Model limits on the role of volcanic carbon emissions in regulating glacial­interglacial CO2 (2009) proposed that an increase in volcanic activity provoked by ice sheet melting contributed emissions in regulating glacial­interglacial CO2 variations, but uncertainties prevent a firm conclusion

  18. MODIS and ASTER synergy for characterizing thermal volcanic activity S.W. Murphy a,

    E-Print Network [OSTI]

    Wright, Robert

    MODIS and ASTER synergy for characterizing thermal volcanic activity S.W. Murphy a, , R. Wright b in thermal activity due to the eruption of lava however intervening periods are characterized by weak or absent thermal anomalies. Láscar, on the other hand, provides an example of volcanic activity

  19. Volcanism, the atmosphere and climate through time anja schmidt and alan robock

    E-Print Network [OSTI]

    Robock, Alan

    , 2003). Past episodes of continental flood basalt (CFB) volcanism produced huge lava volumes discussed in Chapters 5 and 11, CFB volcanism is typified by numerous, recurring large-volume eruptive an entire CFB province are short-lived ­ typically about 1 Ma or less. For the assessment

  20. Satellite and radar analysis of the volcanic-cumulonimbi at Mount Pinatubo, Philippines, 1991

    E-Print Network [OSTI]

    Daniel, Rosenfeld

    Satellite and radar analysis of the volcanic-cumulonimbi at Mount Pinatubo, Philippines, 1991, Philippines. The observed phenomena included deep convection resulting from (1) lower level eruptions, (2 and radar analysis of the volcanic-cumulonimbi at Mount Pinatubo, Philippines, 1991, J. Geophys. Res., 110

  1. Mixtures of pollution, dust, sea salt, and volcanic aerosol during ACE-Asia: Radiative properties

    E-Print Network [OSTI]

    was dominated by marine, polluted, volcanic, and dust aerosols. Average total light scattering coefficients (sspMixtures of pollution, dust, sea salt, and volcanic aerosol during ACE-Asia: Radiative properties). Aerosol hygroscopicity ranged from deliquescent with hysteresis (marine frequently and polluted variably

  2. Airborne Volcanic Ash--A Global Threat to Aviation U.S. Department of the Interior

    E-Print Network [OSTI]

    Airborne Volcanic Ash--A Global Threat to Aviation U.S. Department of the Interior U.S. Geological on the aviation industry. Airborne volcanic ash can be a serious hazard to aviation even hundreds of miles from an eruption. Encounters with high-concentration ash clouds can diminish visibility, damage flight control

  3. GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Hygroscopic Properties of Volcanic Ash

    E-Print Network [OSTI]

    Nenes, Athanasios

    GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Hygroscopic Properties of Volcanic Ash observational data exists on the physical interac- tions between volcanic ash particles and water vapor; yet it is thought that these interactions can strongly impact the microphysical evolution of ash, with implications

  4. Surprising spread of volcanic ash key to solving Earth's mysteries: U of A grad

    E-Print Network [OSTI]

    Wang, Hao "Howard"

    Surprising spread of volcanic ash key to solving Earth's mysteries: U of A grad EDMONTON Volcanic ash, which can provide valuable snapshots of Earth's history, appears to drift much farther than of science that uses layers of "tephra," or ash, to link and date events in Earth's history. When a volcano

  5. Eos, Vol. 79, No. 42, October 20, 1998 Volcanic Ash Can Pose

    E-Print Network [OSTI]

    Becker, Thorsten W.

    Eos, Vol. 79, No. 42, October 20, 1998 Volcanic Ash Can Pose Hazards to Air Traffic PAGES 505 and potentially deadly problems that can arise from volcanic ash clouds. The clouds can rise into the cruise the ash. The ash can ruin planes, and cause loss of thrust and even flameouts. It also can slicken runways

  6. GPS and Volcanic Ash Plumes: The eruptions of Okmok 2008 and Redoubt 2009, Alaska

    E-Print Network [OSTI]

    Grapenthin, Ronni

    GPS and Volcanic Ash Plumes: The eruptions of Okmok 2008 and Redoubt 2009, Alaska Ronni Grapenthin Volcano in 2008 and Mt. Redoubt in 2009 produced significant ash plumes reaching over 15 km of altitude. It is known that the injection of volcanic ash in the at- mosphere induces phase delays not modeled by GPS

  7. Some Effects of Mt. St. Helens Volcanic Ash on Juvenile Salmon Smolts

    E-Print Network [OSTI]

    Some Effects of Mt. St. Helens Volcanic Ash on Juvenile Salmon Smolts TIMOTHY W. NEWCOMB and THOMAS. Helens, which was completely decimated with vol- canic ash and mud slides. Heavy sediment loads smolts were exposed to various concentrations ofairborne volcanic ash from the 18 May 1980 eruption

  8. AO18: Satellite tracking of volcanic eruption plumes using ash and Candidate number: 782932

    E-Print Network [OSTI]

    Oxford, University of

    AO18: Satellite tracking of volcanic eruption plumes using ash and SO2 Candidate number: 782932 was to study, using satel- lite images, both ash and SO2 emitted from vol- canoes during eruptions, particularly to investi- gate whether the ash and SO2 in volcanic plumes are always collocated. If not, the aim

  9. Measurements of the complex dielectric constant of volcanic ash from 4 to 19 GHz

    E-Print Network [OSTI]

    Perger, Warren F.

    Measurements of the complex dielectric constant of volcanic ash from 4 to 19 GHz R. J. Adams,1 W. F. Perger,2 W. I. Rose,3 and A. Kostinski4 Abstract Dielectric data in volcanic ash at weather radar wavelengths (centimeter range) are extremely sparse and are crucial for radar sensing of ash clouds

  10. Geologic constraints on the existence and distribution of West Antarctic subglacial volcanism

    E-Print Network [OSTI]

    Hemming, Sidney R

    the WAIS, heat supplied by subglacial eruptions and/or enhanced geothermal activity could melt enough ice [2] Geophysical studies suggest that subglacial volcanic activity and geothermal phenomena may help along the rift flanks of the West Antarctic Rift System (WARS). This stage of volcanic activity started

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

    E-Print Network [OSTI]

    Pontbriand, Claire Willis

    2013-01-01

    Seafloor digital imagery and bathymetric data are used to evaluate the volcanic characteristics of the 85°E segment of the ultraslow spreading Gakkel Ridge (9 mm yr-¹). Imagery reveals that ridges and volcanic cones in the ...

  12. The Development and Use of the Berkeley Fluorescence Spectrometer to Characterize Microbial Content and Detect Volcanic Ash in Glacial Ice

    E-Print Network [OSTI]

    Rohde, Robert Andrew

    2010-01-01

    optical log of dust, ash, and stratigraphy in South PoleContent and Detect Volcanic Ash in Glacial Ice by RobertContent and Detect Volcanic Ash in Glacial Ice by Robert

  13. The San FranciscoVolcanic Field,which covers about 1,800 square miles, is part of northern

    E-Print Network [OSTI]

    The San FranciscoVolcanic Field,which covers about 1,800 square miles, is part of northern Arizona at the high- est elevations.The varied forests and geologic features of the San FranciscoVolcanic Field offer young but extinct volcanoes of the San Francisco Volcanic Field.Without the volcanoes, this region would

  14. Measuring volcanic plume and ash properties from space R. G. GRAINGER1*, D. M. PETERS1, G. E. THOMAS1,

    E-Print Network [OSTI]

    Oxford, University of

    Measuring volcanic plume and ash properties from space R. G. GRAINGER1*, D. M. PETERS1, G. E *Corresponding author (e-mail: r.grainger@physics.ox.ac.uk) Abstract: The remote sensing of volcanic ash plumes of volcanic ash. To achieve this, a singular vector decomposition method has been developed for the MIPAS

  15. Detection of smoke and ash from forest fires and volcanic eruptions using the GOME-2 Absorbing Aerosol Index

    E-Print Network [OSTI]

    Tilstra, Gijsbert

    Detection of smoke and ash from forest fires and volcanic eruptions using the GOME-2 Absorbing. Colours represent the smoke plume on the indicated days. 3. Detection of volcanic ash In April 2010, the GOME-2 AAI was able to follow the transport of volcanic ash from the Eyjafjalljokull volcano

  16. Analyses of in-situ airborne volcanic ash from the February 2000 eruption of Hekla Volcano, Iceland

    E-Print Network [OSTI]

    Ma, Chi

    Analyses of in-situ airborne volcanic ash from the February 2000 eruption of Hekla Volcano, Iceland-8 NASA research aircraft inadvertently flew into an airborne volcanic ash plume from the 26 February spectrophotometer analyses. These analyses confirm that the DC-8 encountered airborne volcanic ash from Hekla

  17. Quantitative Shape Measurements of Distal Volcanic Ash Colleen M. Riley, William I. Rose, and Gregg J.S. Bluth

    E-Print Network [OSTI]

    Rose, William I.

    Quantitative Shape Measurements of Distal Volcanic Ash Colleen M. Riley, William I. Rose, and Gregg-7093; Email: colleenandahi@hotmail.com #12;2 Abstract Large-scale volcanic eruptions produce fine ash ( distances from the volcanic source, thus, becoming a hazard to aircraft and public health. Ash particles

  18. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Determining the contribution of volcanic ash and

    E-Print Network [OSTI]

    Reading, University of

    of volcanic ash and Boundary Layer aerosol in backscatter lidar returns: a three-component atmosphere approach MARENCO AND HOGAN: VOLCANIC ASH AND BL AEROSOL IN LIDAR RETURNS Abstract. A solution of the lidar equation successfully applied to simultaneous observations of volcanic ash and Boundary Layer aerosol obtained in Exeter

  19. Kirchhoff integrals and Fresnel zones Ludek Klimes

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Kirchhoff integrals and Fresnel zones LudŸek KlimeŸs Department of Geophysics, Charles University of discrete values necessary for the numerical quadra­ ture. The Fresnel zones are then derived as the minimum of Fresnel zones is purely local, independent of the reference travel times. The definition of Fresnel zones

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

    SciTech Connect (OSTI)

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

    2010-09-01

    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. 50–100 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.

  1. Overlap zoned electrically heated particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Chapman, Mark R [Brighton, MI

    2011-07-19

    A system includes a particulate matter (PM) filter that includes an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than or equal to one, and wherein the N zones and the M sub-zones are arranged in P layers, where P is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

  2. Earth Planets Space, 61, 7181, 2009 Gilbert-Gauss geomagnetic reversal recorded in Pliocene volcanic sequences

    E-Print Network [OSTI]

    Demouchy, Sylvie

    volcanic sequences from Georgia (Lesser Caucasus): revisited Avto Goguitchaichvili1 , Miguel Angel correlation with the original (Thoki) sequence, previous preliminary measurements of natural remanent magne- tization (Sologashvili, 1986), and field observations allowed us to establish a new magnetic stratigraphy

  3. Age and location of volcanic centers less than or equal to 3...

    Office of Scientific and Technical Information (OSTI)

    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...

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

    E-Print Network [OSTI]

    Suckale, Jenny

    2011-01-01

    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 ...

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

    SciTech Connect (OSTI)

    Burton, B.W.

    1982-01-01

    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.

  6. Proceedings of Coastal Zone 07 Portland, Oregon

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    MODEL FOR PUGET SOUND: A CLASSROOM EXPERIENCE Timothy Nyerges, Scott Dudgeon, Tyanne Faulkes information systems, coastal zone management INTRODUCTION Coastal zone management (CZM) requires robust about how to management coastal resources (Wright and Scholz 2005). CZM applications of geographic

  7. Deep Vadose Zone Applied Field Research Initiative

    E-Print Network [OSTI]

    Deep Vadose Zone­ Applied Field Research Initiative Fiscal Year 2012 Annual Report #12;Prepared Tasks 25 References 25 Appendix: FY2012 Products for the Deep Vadose Zone­ Applied Field Research Initiative Contents #12;Message from the Deep Vadose Zone- Applied Field Research Initiative Project Manager

  8. Rift Zone | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk, New York:Virginia: EnergyRidgeview BiomassRietbrock,Rift Zone

  9. A compound power-law model for volcanic eruptions: Implications for risk assessment of volcanism at the proposed nuclear waste repository at Yucca Mountain, Nevada

    SciTech Connect (OSTI)

    Ho, Chih-Hsiang

    1994-10-17

    Much of the ongoing debate on the use of nuclear power plants in U.S.A. centers on the safe disposal of the radioactive waste. Congress, aware of the importance of the waste issue, passed the Nuclear Waste Policy Act of 1982, requiring the federal government to develop a geologic repository for the permanent disposal of high level radioactive wastes from civilian nuclear power plants. The Department of Energy (DOE) established the Office of Civilian Radioactive Waste Management (OCRWM) in 1983 to identify potential sites. When OCRWM had selected three potential sites to study, Congress enacted the Nuclear Waste Policy Amendments Act of 1987, which directed the DOE to characterize only one of those sites, Yucca Mountain, in southern Nevada. For a site to be acceptable, theses studies must demonstrate that the site could comply with regulations and guidelines established by the federal agencies that will be responsible for licensing, regulating, and managing the waste facility. Advocates and critics disagree on the significance and interpretation of critical geological features which bear on the safety and suitability of Yucca Mountain as a site for the construction of a high-level radioactive waste repository. Recent volcanism in the vicinity of Yucca Mountain is readily recognized as an important factor in determining future public and environmental safety because of the possibility of direct disruption of a repository site by volcanism. In particular, basaltic volcanism is regarded as direct and unequivocal evidence of deep-seated geologic instability. In this paper, statistical analysis of volcanic hazard assessment at the Yucca Mountain site is discussed, taking into account some significant geological factors raised by experts. Three types of models are considered in the data analysis. The first model assumes that both past and future volcanic activities follow a homogeneous Poisson process (HPP).

  10. Effects of volcanism, crustal thickness, and large-scale faulting on the He isotope signatures of geothermal systems in Chile

    E-Print Network [OSTI]

    Morata, Dobson, P.F., B.M. Kennedy, M. Reich, P. Sanchez, and D.

    2014-01-01

    of the Cordon Caulle geothermal system, southern Chile,?volcanic centers and geothermal systems in the CVZ wereHelium isotopes in geothermal systems: Iceland, The Geysers,

  11. Enterprise Zone | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, AlabamaETEC GmbH JumpEllenville, NewLtdEnergypediaEntaban Ecoenergeticas SACenterZone

  12. Accommodation Zone | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (UtilityMichigan)dataSuccessful Smart Grid PilotsAccommodation Zone Jump

  13. Volcanic gas emissions and their effect on ambient air character

    SciTech Connect (OSTI)

    Sutton, A.J.; Elias, T.

    1994-01-01

    This bibliography was assembled to service an agreement between Department of Energy and the USGS to provide a body of references and useful annotations for understanding background gas emissions from Kilauea volcano. The current East Rift Zone (ERZ) eruption of Kilauea releases as much as 500,000 metric tonnes of SO{sub 2} annually, along with lesser amounts of other chemically and radiatively active species including H{sub 2}S, HCl, and HF. Primary degassing locations on Kilauea are located in the summit caldera and along the middle ERZ. The effects of these emissions on ambient air character are a complex function of chemical reactivity, source geometry and effusivity, and local meteorology. Because of this complexity, we organized the bibliography into three main sections: (1) characterizing gases as they leave the edifice; (2) characterizing gases and chemical reaction products away from degassing sources; and (3) Hawaii Island meteorology.

  14. The red triangles are volcano locations. Dark-orange areas have a higher volcanic hazard; light-orange areas have a lower volcanic hazard. Dark-gray areas have a higher ash fall hazard;

    E-Print Network [OSTI]

    The red triangles are volcano locations. Dark-orange areas have a higher volcanic hazard; light-orange areas have a lower volcanic hazard. Dark-gray areas have a higher ash fall hazard; light-gray areas have years. · Mauna Loa, in Hawaii, is the world's largest active volcano. · The Cascade Range--home to more

  15. Quaternary volcanism, tectonics, and sedimentation in the Idaho National Engineering Laboratory area

    SciTech Connect (OSTI)

    Hackett, W.R.; Smith, R.P.

    1992-09-01

    In this article, we discuss the regional context and describe localities for a two-day field excursion in the vicinity of the Idaho National Engineering Laboratory (INEL). We address several geologic themes: (1) Late Cenozoic, bimodal volcanism of the Eastern Snake River Plain (ESRP), (2) the regional tectonics and structural geology of the Basin and Range province to the northwest of the ESRP, (3) fluvial, lacustrine, and aeolian sedimentation in the INEL area, and (4) the influence of Quaternary volcanism and tectonics on sedimentation near the INEL.

  16. Quaternary volcanism, tectonics, and sedimentation in the Idaho National Engineering Laboratory area

    SciTech Connect (OSTI)

    Hackett, W.R.; Smith, R.P.

    1992-01-01

    In this article, we discuss the regional context and describe localities for a two-day field excursion in the vicinity of the Idaho National Engineering Laboratory (INEL). We address several geologic themes: (1) Late Cenozoic, bimodal volcanism of the Eastern Snake River Plain (ESRP), (2) the regional tectonics and structural geology of the Basin and Range province to the northwest of the ESRP, (3) fluvial, lacustrine, and aeolian sedimentation in the INEL area, and (4) the influence of Quaternary volcanism and tectonics on sedimentation near the INEL.

  17. Evidence for explosive silicic volcanism on the Moon from the extended distribution of thorium near the Compton-Belkovich Volcanic Complex

    E-Print Network [OSTI]

    Wilson, J T; Massey, R J; Elphic, R C; Jolliff, B L; Lawrence, D J; Llewellin, E W; McElwaine, J N; Teodoro, L F A

    2014-01-01

    We reconstruct the abundance of thorium near the Compton-Belkovich Volcanic Complex on the Moon, using data from the Lunar Prospector Gamma Ray Spectrometer. We enhance the resolution via a pixon image reconstruction technique, and find that the thorium is distributed over a larger (40 km $\\times$ 75 km) area than the (25 km $\\times$ 35 km) high albedo region normally associated with Compton-Belkovich. Our reconstructions show that inside this region, the thorium concentration is 15 - 33 ppm. We also find additional thorium, spread up to 300 km eastward of the complex at $\\sim$2 ppm. The thorium must have been deposited during the formation of the volcanic complex, because subsequent lateral transport mechanisms, such as small impacts, are unable to move sufficient material. The morphology of the feature is consistent with pyroclastic dispersal and we conclude that the present distribution of thorium was likely created by the explosive eruption of silicic magma.

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

    E-Print Network [OSTI]

    Wehrli, Bernhard

    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

  19. Estimation of ash injection in the atmosphere by basaltic volcanic plumes: The case of the Eyjafjallajkull 2010 eruption

    E-Print Network [OSTI]

    Kaminski, Edouard

    Estimation of ash injection in the atmosphere by basaltic volcanic plumes: The case explosive eruptions, volcanic plumes inject ash into the atmosphere and may severely affect air traffic, as illustrated by the 2010 Eyjafjallajökull eruption. Quantitative estimates of ash injection can be deduced from

  20. Mass-independent isotopic signatures of volcanic sulfate from three supereruption ash deposits in Lake Tecopa, California

    E-Print Network [OSTI]

    Bindeman, Ilya N.

    Mass-independent isotopic signatures of volcanic sulfate from three supereruption ash deposits present oxygen and sulfur isotope analyses of sulfate in 48 volcanic ash samples, and 26 sediment samples from dry lake beds in the Tecopa basin, California, USA. These ash layers represent three

  1. Refraction of shear zones in granular materials

    E-Print Network [OSTI]

    Tamas Unger

    2007-01-08

    We study strain localization in slow shear flow focusing on layered granular materials. A heretofore unknown effect is presented here. We show that shear zones are refracted at material interfaces in analogy with refraction of light beams in optics. This phenomenon can be obtained as a consequence of a recent variational model of shear zones. The predictions of the model are tested and confirmed by 3D discrete element simulations. We found that shear zones follow Snell's law of light refraction.

  2. Vadose Zone Microbiology: Science and Applications

    SciTech Connect (OSTI)

    Brockman, Fred J.; Bradley, Stephen D.; Kieft, Thomas L.

    2002-03-12

    Brockman FJ, SN Bradley and TL Kieft. 2002. Vadose zone microbiology. In Encyclopedia of Environmental Microbiology, volume 6, pp. 3236-3246. John Wiley and Sons, New York.

  3. Maricopa County- Renewable Energy Systems Zoning Ordinance

    Broader source: Energy.gov [DOE]

    The Maricopa County Zoning Ordinance contains provisions for siting renewable energy systems. The ordinance defines renewable energy as "energy derived primarily from sources other than fossil...

  4. Status of understanding of the saturated-zone ground-water flow system at Yucca Mountain, Nevada, as of 1995

    SciTech Connect (OSTI)

    Luckey, R.R.; Tucci, P.; Faunt, C.C.; Ervin, E.M.

    1996-12-31

    Yucca Mountain, which is being studied extensively because it is a potential site for a high-level radioactive-waste repository, consists of a thick sequence of volcanic rocks of Tertiary age that are underlain, at least to the southeast, by carbonate rocks of Paleozoic age. Stratigraphic units important to the hydrology of the area include the alluvium, pyroclastic rocks of Miocene age (the Timber Mountain Group; the Paintbrush Group; the Calico Hills Formation; the Crater Flat Group; the Lithic Ridge Tuff; and older tuffs, flows, and lavas beneath the Lithic Ridge Tuff), and sedimentary rocks of Paleozoic age. The saturated zone generally occurs in the Calico Hills Formation and stratigraphically lower units. The saturated zone is divided into three aquifers and two confining units. The flow system at Yucca Mountain is part of the Alkali Flat-Furnace Creek subbasin of the Death Valley groundwater basin. Variations in the gradients of the potentiometric surface provided the basis for subdividing the Yucca Mountain area into zones of: (1) large hydraulic gradient where potentiometric levels change at least 300 meters in a few kilometers; (2) moderate hydraulic gradient where potentiometric levels change about 45 meters in a few kilometers; and (3) small hydraulic gradient where potentiometric levels change only about 2 meters in several kilometers. Vertical hydraulic gradients were measured in only a few boreholes around Yucca Mountain; most boreholes had little change in potentiometric levels with depth. Limited hydraulic testing of boreholes in the Yucca Mountain area indicated that the range in transmissivity was more than 2 to 3 orders of magnitude in a particular hydrogeologic unit, and that the average values for the individual hydrogeologic units generally differed by about 1 order of magnitude. The upper volcanic aquifer seems to be the most permeable hydrogeologic unit, but this conclusion was based on exceedingly limited data.

  5. 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

  6. 1 Satellite remote sensing analysis of the 2010 Eyjafjallajokull 2 volcanic ash cloud over the North Sea during 418 May 2010

    E-Print Network [OSTI]

    Christopher, Sundar A.

    1 Satellite remote sensing analysis of the 2010 Eyjafjallajokull 2 volcanic ash cloud over) instrument, and BaE146 aircraft data sets, we provide an overview of 8 volcanic ash spatial distribution the North Sea. We describe spectral 10 signatures of volcanic ash, compare the MODIS-retrieved 550 nm

  7. Hybrid Zones and Sexual Selection 503 HYBRID ZONES AND SEXUAL SELECTION: INSIGHTS FROM

    E-Print Network [OSTI]

    Hybrid Zones and Sexual Selection 503 HYBRID ZONES AND SEXUAL SELECTION: INSIGHTS FROM THE AWASH BABOON HYBRID ZONE (Papio hamadryas anubis x P. h. hamadryas) Thore J. Bergman and Jacinta C. Beehner, have focused on the impact of sexual selection on populations of naturally occurring hybrid animals

  8. Did melting glaciers cause volcanic eruptions in eastern California? Probing the mechanics of dike

    E-Print Network [OSTI]

    Manga, Michael

    Did melting glaciers cause volcanic eruptions in eastern California? Probing the mechanics of dike significant cross correlations between changes in eruption frequency and the first derivative of the glacial volume. Moreover, calculated time lags for the effects of glacial unloading on silicic and basaltic

  9. A new way to detect volcanic plumes Kristine M. Larson1

    E-Print Network [OSTI]

    Larson, Kristine

    , is important both for public health and aircraft safety. A variety of geophysical tools and satellite data and limitations of the method are assessed using GPS data collected during the 2008 and 2009 eruptions with independently collected seismic and radar data. Citation: Larson, K. M. (2013), A new way to detect volcanic

  10. Influence of composition and thermal history of volcanic glasses on water content as determined by

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Influence of composition and thermal history of volcanic glasses on water content as determined for quantification of water content in natural glasses requires the assessment of the dependence of the technique content (H2OT) and of water speciation (H2Om/OH) requires the development of micro-analytical techniques

  11. GEOMECHANICAL ANALYSIS OF VOLCANIC ROCK ON THE ISLAND OF SABA (NETHERLANDS ANTILLES)

    E-Print Network [OSTI]

    Hack, Robert

    GEOMECHANICAL ANALYSIS OF VOLCANIC ROCK ON THE ISLAND OF SABA (NETHERLANDS ANTILLES) Richard Rijkers 1 & Robert Hack 2 ABSTRACT A geomechanical analysis of a shallow small scale landslide, (NITG-TNO), Geomechanical Research, PO box 97, 2600 JA Delft, The Netherlands, tel.: +31 15 2697222, r

  12. Using hydraulic equivalences to discriminate transport processes1 of volcanic flows1

    E-Print Network [OSTI]

    Boyer, Edmond

    G21942 Using hydraulic equivalences to discriminate transport processes1 of volcanic flows1 2 Alain of hydraulic equivalence, we determined that deposits resulted from a combination of suspended-12 load fallout between transport mechanisms, hydraulic18 equivalences have a general applicability in geophysical flows

  13. Revised version Major natural hazards in a tropical volcanic island: a review for Mayotte Island,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , Comoros archipelago, Indian Ocean Jean-Christophe Audru 1 , Adnand Bitri 2 , Jean-François Desprats 3 Mayotte is a French Overseas Territory of the Comoros archipelago. Since the 1980', Mayotte has developed, seismicity, storm surge, volcanic, alterites, Mayotte, Comoros hal-00530183,version1-27Oct2010 #12;Revised

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

    SciTech Connect (OSTI)

    Buckley, R.

    2011-05-10

    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.

  15. Red Mountain is one of several hundred cinder cones within a swath of volcanic

    E-Print Network [OSTI]

    Red Mountain is one of several hundred cinder cones within a swath of volcanic landscape Mountain, whose tallest peak is 12,633 feet above sea level, the highest ele- vation in Arizona. Red Mountain rises about 1,000 feet above the surrounding landscape, and its crest is at 7,965 feet elevation

  16. GRAIL Gravity Observations of Lunar Volcanic Complexes Walter S. Kiefer1

    E-Print Network [OSTI]

    Kiefer, Walter S.

    GRAIL Gravity Observations of Lunar Volcanic Complexes Walter S. Kiefer1 , Patrick J. McGovern1 , Jeffrey C. Andrews-Hanna2 , James W. Head III3 , James G. Williams4 , Maria T. Zuber5 , and the GRAIL and Interior Labora- tory (GRAIL) mission markedly sharpened our view of the Moon's gravity [1]. The current

  17. Fission-track and 40Ar/39Ar dating and chemical correlation of volcanic strata ex-

    E-Print Network [OSTI]

    Mueller, Karl

    , the track of which is marked by the Snake River Plain, the Inter- mountain seismic belt and the metamorphic complex, development of major thrust faults in the Sevier belt, and volcanism in the Snake River Plain, have been defined and dated. In northeast Nevada, the highly exhumed rocks in the Ruby Mountains

  18. Experimental investigation of rates and mechanisms of isotope exchange (O, H) between volcanic ash and

    E-Print Network [OSTI]

    Bindeman, Ilya N.

    Experimental investigation of rates and mechanisms of isotope exchange (O, H) between volcanic ash-term exposure experi- ments of distal 7700 BP Mt. Mazama ash (À149& d2 H, +7& d18 O, 3.8 wt.% H2O and d2 H in native and reacted ash that can be used in defining the protocols for natural sample

  19. Following more than 30 years of seismic and volcanic quiescence, the Canary Islands

    E-Print Network [OSTI]

    Sleeman, Reinoud

    Following more than 30 years of seismic and volcanic quiescence, the Canary Islands region located History Several eruptions have taken place in the Canary Islands in the last 500 years, all of them, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION PAGES 61,65 Monitoring the Reawakening of Canary Islands'Teide Volcano

  20. Hydrogeochemistry and rare earth element behavior in a volcanically acidified watershed in Patagonia, Argentina

    E-Print Network [OSTI]

    Royer, Dana

    and analyzed for major ions, trace metals, and rare earth elements (REE). The concentrations of REE in the RioHydrogeochemistry and rare earth element behavior in a volcanically acidified watershed to oxidation of sulfide minerals. D 2005 Elsevier B.V. All rights reserved. Keywords: Rare earth elements

  1. The sulfur content of volcanic gases on Mars Fabrice Gaillard, a

    E-Print Network [OSTI]

    Boyer, Edmond

    The sulfur content of volcanic gases on Mars Fabrice Gaillard, a and Bruno Scaillet1, a a CNRS sulfur contents of the martian regolith and lack of detection of extensive carbonate deposits suggest that the latest geological events that shaped the landscapes of Mars were dominated by acidic waters possibly

  2. Evolution of a mafic volcanic field in the central Great Basin, south central Nevada

    E-Print Network [OSTI]

    Yogodzinski, G. M.; Naumann, T. R.; Smith, E. I.; Bradshaw, T. K.; Walker, J. Douglas

    1996-08-10

    was followed by trachytic volcanism (4.3 Ma) and by a second episode of lower-volume hawaiite and basanite (episode 2, 3.0–4.7 Ma). Incompatible elements indicate an asthenospheric source. Isotopically, episode 2 basalts cluster around 87Sr/86Sr = 0.7035 and ?...

  3. SIMULATION NUMERIQUE DU TSUNAMI GENERE PAR UN EBOULEMENT DU FLANC DU VOLCAN CUMBRE

    E-Print Network [OSTI]

    Grilli, Stéphan T.

    SIMULATION NUMERIQUE DU TSUNAMI GENERE PAR UN EBOULEMENT DU FLANC DU VOLCAN CUMBRE VIEJA (LA PALMA, CANARIES), PAR UNE APPROCHE COUPLEE NAVIER-STOKES / BOUSSINESQ NUMERICAL SIMULATION OF THE TSUNAMI Vieja (CVV) sur l'^ile de La Palma (Iles Canaries) g´en´ererait un m´ega- tsunami qui pourrait

  4. Baseline zone estimation in two Atul Mallik

    E-Print Network [OSTI]

    Banerjee, Moulinath

    being the region of interest. In LIDAR (light detection and ranging) experiments used for measuring concentration of pollu- tants in the atmosphere, interest often centers on finding high/low pollution zones (see, for example, Wakimoto and McElroy (1986)); in such contexts, S0 would be the zone of minimal pollution

  5. Treating tar sands formations with karsted zones

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX)

    2010-03-09

    Methods for treating a tar sands formation are described herein. The tar sands formation may have one or more karsted zones. Methods may include providing heat from one or more heaters to one or more karsted zones of the tar sands formation to mobilize fluids in the formation. At least some of the mobilized fluids may be produced from the formation.

  6. Reference Phase of Fresnel Zone Plates

    E-Print Network [OSTI]

    G. W. Webb

    2003-02-28

    The standard zone plate assumes that the shortest ray connecting a radiation source and a detection point has a phase of 0 deg thereby defining a reference phase. Here we examine the experimental consequences of varying this reference phase from 0 deg to 360 deg. It is concluded that reference phase is an intrinsic and useful property of zone plates.

  7. UNCOVERING BURIED VOLCANOES: NEW DATA FOR PROBABILISTIC VOLCANIC HAZARD ASSESSMENT AT YUCCA MOUNTAIN

    SciTech Connect (OSTI)

    F.V. Perry

    2005-10-13

    Basaltic volcanism poses a potential hazard to the proposed Yucca Mountain nuclear waste repository because multiple episodes of basaltic volcanism have occurred in the Yucca Mountain region (YMR) in the past 11 Ma. Intervals between eruptive episodes average about 1 Ma. Three episodes have occurred in the Quaternary at approximately 1.1 Ma (5 volcanoes), 350 ka (2 volcanoes), and 80 ka (1 volcano). Because Yucca Mountain lies within the Basin and Range Province, a significant portion of the pre-Quaternary volcanic history of the YMR may be buried in alluvial-filled basins. An exceptionally high-resolution aeromagnetic survey and subsequent drilling program sponsored by the U.S. Department of Energy (DOE) began in 2004 and is gathering data that will enhance understanding of the temporal and spatial patterns of Pliocene and Miocene volcanism in the region (Figure 1). DOE has convened a ten-member expert panel of earth scientists that will use the information gathered to update probabilistic volcanic hazard estimates originally obtained by expert elicitation in 1996. Yucca Mountain is a series of north-trending ridges of eastward-tilted fault blocks that are bounded by north to northeast-trending normal faults. Topographic basins filled with up to 500 m of alluvium surround it to the east, south and west. In the past several decades, nearly 50 holes have been drilled in these basins, mainly for Yucca Mountain Project Site Characterization and the Nye County Early Warning Drilling Program. Several of these drill holes have penetrated relatively deeply buried (300-400 m) Miocene basalt; a Pliocene basalt dated at 3.8 Ma was encountered at a relatively shallow depth (100 m) in the northern Amargosa Desert (Anomaly B in Figure 1). The current drilling program is the first to specifically target and characterize buried basalt. Based on the new aeromagnetic survey and previous air and ground magnetic surveys (Connor et al. 2000; O'Leary et al. 2002), at least eight drill holes are planned with the goal of sampling each geographic subpopulation of magnetic anomalies in the region (Figure 1). This will result in a more complete characterization of the location, age, volume and composition of buried basaltic features for the purpose of updating the volcanic hazard assessment. Smith and Keenan (2005) suggested that volcanic hazard estimates might be 1-2 orders of magnitude higher than estimated by the DOE expert elicitation in 1996, based on (1) a proposed relationship between recurrence rates in the YMR and the Reveille-Lunar Crater volcanic field to the north, and (2) the implication that a number of so-far-undiscovered buried volcanoes would have a significant impact on hazard estimates. This article presents the new aeromagnetic data and an interpretation of the data that suggests magnetic anomalies nearest the proposed repository site represent buried Miocene basalt that will likely have only a minor impact on the volcanic hazard.

  8. Mobile machine hazardous working zone warning system

    DOE Patents [OSTI]

    Schiffbauer, William H. (Connellsville, PA); Ganoe, Carl W. (Pittsburgh, PA)

    1999-01-01

    A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation thereof. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine.

  9. Mobile machine hazardous working zone warning system

    DOE Patents [OSTI]

    Schiffbauer, W.H.; Ganoe, C.W.

    1999-08-17

    A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine. 3 figs.

  10. DOE New Madrid Seismic Zone Electric Utility Workshop Summary...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    DOE New Madrid Seismic Zone Electric Utility Workshop Summary Report - August 2010 DOE New Madrid Seismic Zone Electric Utility Workshop Summary Report - August 2010 The DOE New...

  11. Geographic Information System At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Geographic Information System At Walker-Lane Transitional Zone Region (Coolbaugh, Et Al., 2005 - 2) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal...

  12. An Updated Site Scale Saturated Zone Ground Water Transport Model...

    Office of Scientific and Technical Information (OSTI)

    An Updated Site Scale Saturated Zone Ground Water Transport Model for Yucca Mountain. Citation Details In-Document Search Title: An Updated Site Scale Saturated Zone Ground Water...

  13. Refraction Survey At Walker-Lane Transitional Zone Region (Heimgartner...

    Open Energy Info (EERE)

    Walker-Lane Transitional Zone Region (Heimgartner, Et Al., 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique...

  14. Geodetic Survey At Walker-Lane Transitional Zone Region (Blewitt...

    Open Energy Info (EERE)

    Geodetic Survey At Walker-Lane Transitional Zone Region (Blewitt Et Al, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration...

  15. Field Mapping At Walker-Lane Transitional Zone Region (Blewitt...

    Open Energy Info (EERE)

    Walker-Lane Transitional Zone Region (Blewitt Et Al, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Field Mapping...

  16. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Reference Buildings by Climate Zone and Representative City: 4B Albuquerque, New Mexico Reference Buildings by Climate Zone and Representative City: 4B Albuquerque, New...

  17. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    akfairbanksnew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 8 Fairbanks, Alaska Reference Buildings by Climate Zone...

  18. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    atxhoustonnew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 2A Houston, Texas Reference Buildings by Climate Zone...

  19. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    agaatlantanew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 3A Atlanta, Georgia Reference Buildings by Climate Zone...

  20. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    usaflmiaminew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 1A Miami, Florida Reference Buildings by Climate Zone...

  1. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    samthelenanew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 6B Helena, Montana Reference Buildings by Climate Zone...

  2. AltaRock Energy Announces Successful Multiple-Zone Stimulation...

    Broader source: Energy.gov (indexed) [DOE]

    created multiple stimulated zones from a single wellbore at the Newberry Enhanced Geothermal System (EGS) Demonstration site. Creating multiple stimulated zones from a single...

  3. Geographic Information System At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Zone Region (Laney, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geographic Information System Activity...

  4. Thermal Gradient Holes At Walker-Lane Transitional Zone Region...

    Open Energy Info (EERE)

    Zone Region (Pritchett, 2004) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Thermal Gradient Holes Activity Date...

  5. Archaeology in the Kilauea East Rift Zone: Part 1, Land-use model and research design, Kapoho, Kamaili and Kilauea Geothermal Subzones, Puna District, Hawaii Island

    SciTech Connect (OSTI)

    Burtchard, G.C.; Moblo, P.

    1994-07-01

    The Puna Geothermal Resource Subzones (GRS) project area encompasses approximately 22,000 acres centered on the Kilauea East Rift Zone in Puna District, Hawaii Island. The area is divided into three subzones proposed for geothermal power development -- Kilauea Middle East Rift, Kamaili and Kapoho GRS. Throughout the time of human occupation, eruptive episodes along the rift have maintained a dynamic landscape. Periodic volcanic events, for example, have changed the coastline configuration, altered patterns of agriculturally suitable sediments, and created an assortment of periodically active, periodically quiescent, volcanic hazards. Because of the active character of the rift zone, then, the area`s occupants have always been obliged to organize their use of the landscape to accommodate a dynamic mosaic of lava flow types and ages. While the specific configuration of settlements and agricultural areas necessarily changed in response to volcanic events, it is possible to anticipate general patterns in the manner in which populations used the landscape through time. This research design offers a model that predicts the spatial results of long-term land-use patterns and relates them to the character of the archaeological record of that use. In essence, the environmental/land-use model developed here predicts that highest population levels, and hence the greatest abundance and complexity of identifiable prehistoric remains, tended to cluster near the coast at places that maximized access to productive fisheries and agricultural soils. With the possible exception of a few inland settlements, the density of archaeological remains expected to decrease with distance from the coastline. The pattern is generally supported in the regions existing ethnohistoric and archaeological record.

  6. Kentucky Economic Opportunity Zone Program (KEOZ) (Kentucky)

    Broader source: Energy.gov [DOE]

    The Kentucky Economic Opportunity Zone Program (KEOZ) focuses on the development of areas with high unemployment and poverty levels. The program provides an income tax credit of up to 100% of the...

  7. Seismic imaging of the mantle transition zone

    E-Print Network [OSTI]

    Cao, Qin, Ph. D. Massachusetts Institute of Technology

    2012-01-01

    In this thesis, we developed a generalized Radon transform of SS precursors for large-scale, high-resolution seismo-stratigraphy of the upper mantle transition zone. The generalized Radon transform (GRT) is based on the ...

  8. Zone Determinant Expansions for Nuclear Lattice Simulations

    E-Print Network [OSTI]

    Dean J. Lee; Ilse C. F. Ipsen

    2003-11-28

    We introduce a new approximation to nucleon matrix determinants that is physically motivated by chiral effective theory. The method involves breaking the lattice into spatial zones and expanding the determinant in powers of the boundary hopping parameter.

  9. Hybrid zones in Rhododendron subsection Taliensia 

    E-Print Network [OSTI]

    Marczewski, Tobias

    2011-06-27

    The investigation of hybrid zones has proven to be one of the most promising approaches to advance our understanding of species barriers, and to elucidate evolutionary processes involved in speciation. Due to the improvement ...

  10. Microbial oceanography of anoxic oxygen minimum zones

    E-Print Network [OSTI]

    Ulloa, Osvaldo

    Vast expanses of oxygen-deficient and nitrite-rich water define the major oxygen minimum zones (OMZs) of the global ocean. They support diverse microbial communities that influence the nitrogen economy of the oceans, ...

  11. Local Option- Rural Renewable Energy Development Zones

    Office of Energy Efficiency and Renewable Energy (EERE)

    Commercial renewable energy property in these zones are eligible for a 3 to 5 year local property tax exemption. Eligible property includes either wind, geothermal, solar, biomass, or other uncon...

  12. Vadose Zone Transport Field Study: Status Report

    SciTech Connect (OSTI)

    Gee, Glendon W.; Ward, Anderson L.

    2001-11-30

    Studies were initiated at the Hanford Site to evaluate the process controlling the transport of fluids in the vadose zone and to develop a reliable database upon which vadose-zone transport models can be calibrated. These models are needed to evaluate contaminant migration through the vadose zone to underlying groundwaters at Hanford. A study site that had previously been extensively characterized using geophysical monitoring techniques was selected in the 200 E Area. Techniques used previously included neutron probe for water content, spectral gamma logging for radionuclide tracers, and gamma scattering for wet bulk density. Building on the characterization efforts of the past 20 years, the site was instrumented to facilitate the comparison of nine vadose-zone characterization methods: advanced tensiometers, neutron probe, electrical resistance tomography (ERT), high-resolution resistivity (HRR), electromagnetic induction imaging (EMI), cross-borehole radar (XBR), and cross-borehole seismic (XBS). Soil coring was used to obtain soil samples for analyzing ionic and isotopic tracers.

  13. Improved identification of volcanic features using Landsat 7 ETM+ Luke P. Flynn*, Andrew J.L. Harris, Robert Wright

    E-Print Network [OSTI]

    Wright, Robert

    to be useful for tracking the progress of eruptions in entire volcanic regions (e.g., Dean et al., 1998; Harris.L. Harris, Robert Wright HIGP/SOEST, University of Hawaii, 2525 Correa Road, Honolulu, HI 96822, USA

  14. An evaluation of the effect of volcanic eruption on the solar radiation at Australian and Canadian stations

    SciTech Connect (OSTI)

    Yatko, B.R.; Garrison, J.D.

    1996-11-01

    Peak (most probable) and average values of {angstrom}`s turbidity coefficient {beta} and peak (most probable) and average values of the diffuse index k{sub d} are obtained from the solar radiation data from 21 stations in Australia and 5 stations in Canada. These data exhibit clear increases in their values when the volcanic aerosols in the stratosphere increase following volcanic eruptions of sufficient magnitude. The effect of the eruptions of Fuego (1974), El Chichon (1982) and Pinatubo (1991) are seen most clearly in the data. The effect of lesser eruptions is also seen. The store of volcanic aerosols in the stratosphere shifts with the season so that scattering by volcanic aerosols in the spring half of the year is stronger than in the fall.

  15. Treating nahcolite containing formations and saline zones

    DOE Patents [OSTI]

    Vinegar, Harold J

    2013-06-11

    A method for treating a nahcolite containing subsurface formation includes removing water from a saline zone in or near the formation. The removed water is heated using a steam and electricity cogeneration facility. The heated water is provided to the nahcolite containing formation. A fluid is produced from the nahcolite containing formation. The fluid includes at least some dissolved nahcolite. At least some of the fluid is provided to the saline zone.

  16. U-PLANT GEOGRAPHIC ZONE CLEANUP PROTOTYPE

    SciTech Connect (OSTI)

    ROMINE, L.D.

    2006-02-01

    The U Plant geographic zone (UPZ) occupies 0.83 square kilometers on the Hanford Site Central Plateau (200 Area). It encompasses the U Plant canyon (221-U Facility), ancillary facilities that supported the canyon, soil waste sites, and underground pipelines. The UPZ cleanup initiative coordinates the cleanup of the major facilities, ancillary facilities, waste sites, and contaminated pipelines (collectively identified as ''cleanup items'') within the geographic zone. The UPZ was selected as a geographic cleanup zone prototype for resolving regulatory, technical, and stakeholder issues and demonstrating cleanup methods for several reasons: most of the area is inactive, sufficient characterization information is available to support decisions, cleanup of the high-risk waste sites will help protect the groundwater, and the zone contains a representative cross-section of the types of cleanup actions that will be required in other geographic zones. The UPZ cleanup demonstrates the first of 22 integrated zone cleanup actions on the Hanford Site Central Plateau to address threats to groundwater, the environment, and human health. The UPZ contains more than 100 individual cleanup items. Cleanup actions in the zone will be undertaken using multiple regulatory processes and decision documents. Cleanup actions will include building demolition, waste site and pipeline excavation, and the construction of multiple, large engineered barriers. In some cases, different cleanup actions may be taken at item locations that are immediately adjacent to each other. The cleanup planning and field activities for each cleanup item must be undertaken in a coordinated and cohesive manner to ensure effective execution of the UPZ cleanup initiative. The UPZ zone cleanup implementation plan (ZCIP) was developed to address the need for a fundamental integration tool for UPZ cleanup. As UPZ cleanup planning and implementation moves forward, the ZCIP is intended to be a living document that will provide a focal point for integrating UPZ actions, including field cleanup activities, waste staging and handling, and post-cleanup monitoring and institutional controls.

  17. Zone heated diesel particulate filter electrical connection

    DOE Patents [OSTI]

    Gonze, Eugene V. (Pinckney, MI); Paratore, Jr., Michael J. (Howell, MI)

    2010-03-30

    An electrical connection system for a particulate filter is provided. The system includes: a particulate filter (PF) disposed within an outer shell wherein the PF is segmented into a plurality of heating zones; an outer mat disposed between the particulate filter and the outer shell; an electrical connector coupled to the outer shell of the PF; and a plurality of printed circuit connections that extend along the outer surface of the PF from the electrical connector to the plurality of heating zones.

  18. Triboelectric charging of volcanic ash from the 2011 Gr\\'{i}msv\\"{o}tn eruption

    E-Print Network [OSTI]

    Houghton, Isobel M P; Nicoll, Keri A

    2013-01-01

    Triboelectric charging of different size fractions of a sample of volcanic ash is studied experimentally. Laboratory experiments demonstrate that the normalised span of the particle size distribution plays an important role in the magnitude of charging generated. Previous measurements of the volcanic plumes have shown that ash particles are electrically charged up to hundreds of km away from the vent, which indicates the the ash particles continue to be charged in the plume through the mechanism of triboelectrification [Harrison et al., Env. Res. Lett. 5 024004 (2010), Hatakeyama J. Met. Soc. Japan 27 372 (1949)]. The influence of the normalised span on plume charging suggests that all ash plumes are likely to be charged, with implications for remote sensing and plume lifetime.

  19. Magnetic Anomalies on Io and Their Relationship to the Spatial Distribution of Volcanic Centers 

    E-Print Network [OSTI]

    Knicely, Joshua

    2015-04-23

    and observation altitude ...................................................... 43 1 1. INTRODUCTION Io is the most volcanically active body in the solar system due to tidal heating. The intense heating is produced by a Laplace orbital resonance with Jupiter..., for example, indicates the past presence of a powerful magnetic field and an early stage of plate tectonics as deduced from observed magnetic stripes and apparent transform faults. The magnetic anomaly pattern on Mars contributes to the hypothesis that many...

  20. Saving Planetary Systems: Dead Zones & Planetary Migration

    E-Print Network [OSTI]

    Soko Matsumura; Ralph E. Pudritz; Edward W. Thommes

    2007-01-16

    The tidal interaction between a disk and a planet leads to the planet's migration. A long-standing question regarding this mechanism is how to stop the migration before planets plunge into their central stars. In this paper, we propose a new, simple mechanism to significantly slow down planet migration, and test the possibility by using a hybrid numerical integrator to simulate the disk-planet interaction. The key component of the scenario is the role of low viscosity regions in protostellar disks known as dead zones, which affect planetary migration in two ways. First of all, it allows a smaller-mass planet to open a gap, and hence switch the faster type I migration to the slower type II migration. Secondly, a low viscosity slows down type II migration itself, because type II migration is directly proportional to the viscosity. We present numerical simulations of planetary migration by using a hybrid symplectic integrator-gas dynamics code. Assuming that the disk viscosity parameter inside the dead zone is (alpha=1e-4-1e-5), we find that, when a low-mass planet (e.g. 1-10 Earth masses) migrates from outside the dead zone, its migration is stopped due to the mass accumulation inside the dead zone. When a low-mass planet migrates from inside the dead zone, it opens a gap and slows down its migration. A massive planet like Jupiter, on the other hand, opens a gap and slows down inside the dead zone, independent of its initial orbital radius. The final orbital radius of a Jupiter mass planet depends on the dead zone's viscosity. For the range of alpha's noted above, this can vary anywhere from 7 AU, to an orbital radius of 0.1 AU that is characteristic of the hot Jupiters.

  1. FRESNEL-ZONE MEASUREMENT AND ANALYSIS OF A DUAL-

    E-Print Network [OSTI]

    Collings, Iain B.

    FRESNEL-ZONE MEASUREMENT AND ANALYSIS OF A DUAL- POLARIZED METEOROLOGICAL RADAR ANTENNA D.B. HaymanBi gain Horizontal and vertical polarizations #12;Range Length 4 m9 2 3 4 = D Fresnel Zone Criterion Data Corrected Fresnel Zone Data Aperture Data Far Field Data Raw Fresnel Zone Data Mask D+2 Fourier

  2. Zoned electrical heater arranged in spaced relationship from particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2011-11-15

    A system comprises a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

  3. The evolution and storage of primitive melts in the Eastern Volcanic Zone of Iceland: the 10 ka Grímsvötn tephra series (i.e. the Saksunarvatn ash)

    E-Print Network [OSTI]

    Neave, David A.; Maclennan, John; Thordarson, Thorvaldur; Hartley, Margaret E.

    2015-01-01

    carbon coating. Analyses were carried out with the instrument configured for a high mass resolving power in order to ensure separation of 12C and 24Mg2+ peaks. Measurements were made using a primary O? ion beam with an accelerating voltage of 15 kV, a... CO2 diffusion, resulting in reduced sequestration of CO2 into bubbles (Neave et al. 2014a; Wallace et al. 2015). Inclusion-hosted bubbles are present in 49 of the 133 melt inclusions analysed from the Hvítárvatn tephra layer. The majority...

  4. Across-arc geochemical variations in the Southern Volcanic Zone, Chile (34.538.0S): Constraints on mantle wedge and

    E-Print Network [OSTI]

    Bindeman, Ilya N.

    , OR 97403, USA f Servicio Nacional de Geologi´a y Mineri´a, Santiago, Chile Received 7 September 2012

  5. Detonation Reaction Zones in Condensed Explosives

    SciTech Connect (OSTI)

    Tarver, C M

    2005-07-14

    Experimental measurements using nanosecond time resolved embedded gauges and laser interferometric techniques, combined with Non-Equilibrium Zeldovich--von Neumann--Doring (NEZND) theory and Ignition and Growth reactive flow hydrodynamic modeling, have revealed the average pressure/particle velocity states attained in reaction zones of self-sustaining detonation waves in several solid and liquid explosives. The time durations of these reaction zone processes is discussed for explosives based on pentaerythritol tetranitrate (PETN), nitromethane, octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), triaminitrinitrobenzene(TATB) and trinitrotoluene (TNT).

  6. High exhaust temperature, zoned, electrically-heated particulate matter filter

    SciTech Connect (OSTI)

    Gonze, Eugene V.; Paratore, Jr., Michael J.; Bhatia, Garima

    2015-09-22

    A system includes a particulate matter (PM) filter, an electric heater, and a control circuit. The electric heater includes multiple zones, which each correspond to longitudinal zones along a length of the PM filter. A first zone includes multiple discontinuous sub-zones. The control circuit determines whether regeneration is needed based on an estimated level of loading of the PM filter and an exhaust flow rate. In response to a determination that regeneration is needed, the control circuit: controls an operating parameter of an engine to increase an exhaust temperature to a first temperature during a first period; after the first period, activates the first zone; deactivates the first zone in response to a minimum filter face temperature being reached; subsequent to deactivating the first zone, activates a second zone; and deactivates the second zone in response to the minimum filter face temperature being reached.

  7. Injectivity Testing for Vapour Dominated Feed Zones

    SciTech Connect (OSTI)

    Clotworthy, A.W.; Hingoyon, C.S.

    1995-01-01

    Wells with vapor dominated feed zones yield abnormal pressure data. This is caused by the condensation of vapor during water injection. A revised injectivity test procedure currently applied by PNOC at the Leyte Geothermal Power Project has improved the injectivity test results.

  8. Original article Spatial and altitudinal bioclimatic zones

    E-Print Network [OSTI]

    Biondi, Franco

    bioclimatic zones and forest types. © 2005 Elsevier SAS. All rights reserved. Keywords: Dendroecology.elsevier.com/locate/actoec 1146-609X/$ - see front matter © 2005 Elsevier SAS. All rights reserved. doi:10.1016/j.actao.2005; accepted 20 January 2005 Available online 02 March 2005 Abstract A network of 24 beech (Fagus sylvatica L

  9. Vadose Zone Modeling Applied to Stormwater Infiltration

    E-Print Network [OSTI]

    Clark, Shirley E.

    ? Infiltration Applications (not bio- infiltration) Long Island Recharge 3-day Study (silty underlayer) #121 Vadose Zone Modeling Applied to Stormwater Infiltration Shirley E. Clark, Ph.D., P.E. J. Bradley Mikula, M.S. Katherine H. Baker, Ph.D. Benefits of Urban Stormwater Infiltration? 0

  10. KALELE ROAD PARKING PERMIT ZONESPARKING PERMIT ZONES

    E-Print Network [OSTI]

    Greenhouses Institute for Astronomy University of Hawai`i Press Federal Credit Union Energy House & SafetyFREEWAY H1 KALELE ROAD PARKING PERMIT ZONESPARKING PERMIT ZONES 2010 - 20112010 - 2011 Parking Services Office · 2600 Campus Road, Room 014 · Honolulu, HI 96822 · www.hawaii.edu/parking · parking

  11. Site-Scale Saturated Zone Flow Model

    SciTech Connect (OSTI)

    G. Zyvoloski

    2003-12-17

    The purpose of this model report is to document the components of the site-scale saturated-zone flow model at Yucca Mountain, Nevada, in accordance with administrative procedure (AP)-SIII.lOQ, ''Models''. This report provides validation and confidence in the flow model that was developed for site recommendation (SR) and will be used to provide flow fields in support of the Total Systems Performance Assessment (TSPA) for the License Application. The output from this report provides the flow model used in the ''Site-Scale Saturated Zone Transport'', MDL-NBS-HS-000010 Rev 01 (BSC 2003 [162419]). The Site-Scale Saturated Zone Transport model then provides output to the SZ Transport Abstraction Model (BSC 2003 [164870]). In particular, the output from the SZ site-scale flow model is used to simulate the groundwater flow pathways and radionuclide transport to the accessible environment for use in the TSPA calculations. Since the development and calibration of the saturated-zone flow model, more data have been gathered for use in model validation and confidence building, including new water-level data from Nye County wells, single- and multiple-well hydraulic testing data, and new hydrochemistry data. In addition, a new hydrogeologic framework model (HFM), which incorporates Nye County wells lithology, also provides geologic data for corroboration and confidence in the flow model. The intended use of this work is to provide a flow model that generates flow fields to simulate radionuclide transport in saturated porous rock and alluvium under natural or forced gradient flow conditions. The flow model simulations are completed using the three-dimensional (3-D), finite-element, flow, heat, and transport computer code, FEHM Version (V) 2.20 (software tracking number (STN): 10086-2.20-00; LANL 2003 [161725]). Concurrently, process-level transport model and methodology for calculating radionuclide transport in the saturated zone at Yucca Mountain using FEHM V 2.20 are being carried out in the model report, ''Site-Scale Saturated Zone Transport'', MDL-NBS-HS-000010 Rev 01 (BSC 2003 [162419]). The velocity fields are calculated by the flow model, described herein, independent of the transport processes, and are then used as inputs to the transport model. Justification for this abstraction is presented in the model report, ''Saturated Zone Flow and Transport Model Abstraction'', MDL-NBS-HS-000021 (BSC 2003 [164870]).

  12. UNSATURATED ZONE CALCITE 813C EVIDENCE OF SOUTHERN NEVADA CLIMATES DURING THE PAST 9 MILLION YEARS

    SciTech Connect (OSTI)

    JOSEPH F. WHELAN AND RICHARD J. MOSCATI

    1998-01-26

    Yucca Mountain, Nevada, is presently the object of intense study as a potential permanent repository for the Nation's high-level radioactive wastes. The mountain consists of a thick sequence of volcanic tuffs in which the depth to the water table ranges from 500 to 700 meters below the land surface. This thick unsaturated zone (UZ), which would host the projected repository, coupled with the present-day arid to semi-arid environment, is considered a positive argument for the site. Evaluation of the site includes defining the relationship between climate variability, as the input function or driver of site- and regional-scale ground-water flow, and the possible transport and release of radionuclides. Secondary calcite and opal have been deposited in the UZ by meteoric waters that infiltrated through overlying soils and percolated through the tuffs. The oxygen isotopic composition ({delta}{sup 18}O values) of these minerals reflect contemporaneous meteoric waters and the {delta}{sup 13}C values reflect soil organic matter, and hence the resident plant community, at the time of infiltration (Whelan et al., 1994). Recent U/Pb age determinations of opal in these occurrences allows the {delta}{sup 13}C values of associated calcite to be used to reconstruct general climate variations during the past 9 M.y.

  13. Hot Spring Monitoring at Lassen Volcanic National Park, California 1983-1985

    SciTech Connect (OSTI)

    Sorey, Michael L.

    1986-01-21

    Data collected on several occasions between 1983 and 1985 as part of a hydrologic monitoring program by the U.S. Geological Survey permit preliminary estimation of the natural variability in the discharge characteristics of hydrothermal features in Lassen Volcanic National Park and the Lassen KGRA in northern California. The total rate of discharge of high-chloride hot springs along Mill Creek and Canyon Creek in the Lassen KGRA has averaged 20.9 {+-} 1.7 L/s, based on seven measurements of the flux of chloride in these streams. Measured chloride flux does not appear to increase with streamflow during the spring-summer snowmelt period, as observed at Yellowstone and Long Valley Caldera. The corresponding fluxes of arsenic in Mill Creek and Canyon Creek decrease within distances of about 2 km downstream from the hot springs by approximately 30%, most likely due to chemical absorption on streambed sediments. Within Lassen Volcanic National Park, measurements of sulfate flux in streams draining steam-heated thermal features at Sulphur Works and Bumpass Hell have averaged 7.5 {+-} 1.0 and 4.0 {+-} 1.5 g/s, respectively. Calculated rates of steam upflow containing, dissolved H{sub 2}S to supply these sulfate fluxes are 1.8 kg/s at Sulphur Works and 1.0 kg/s at Bumpass Hell.

  14. Shaping urban form without zoning: a case study of houston 

    E-Print Network [OSTI]

    Qian, Zhu

    2009-05-15

    Houston is the only major city in North America without zoning. The growth of Houston illustrates a traditional free market philosophy in which land use zoning is seen as a violation to private property and personal liberty. This dissertation...

  15. Incentive zoning and environmental quality in Boston's Fenway neighborhood

    E-Print Network [OSTI]

    DeFlorio, Joshua (Joshua C.)

    2007-01-01

    A density bonus, also called incentive zoning, is a conditional liberalization of zoning regulations, allowing a real estate development to exceed as-of-right density limits in exchange for the in-kind provision or purchase ...

  16. oZONE Faculty and Staff Enrolling Students

    E-Print Network [OSTI]

    Oklahoma, University of

    oZONE Faculty and Staff Enrolling Students Log in to ozone.ou.edu. Click the Advising tab. Please lecture schedule CRN ­ Course Reference Number In oZONE the Registration Add Errors will display one

  17. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Climate Zone and Representative City: 2B Phoenix, Arizona Reference Buildings by Climate Zone and Representative City: 2B Phoenix, Arizona In addition to the ZIP file for each...

  18. Yukon Exploration and GEoloGY 2009 293 Soil reconnaissance of the Fort Selkirk volcanic field, Yukon (115I/13 and 14)

    E-Print Network [OSTI]

    Sanborn, Paul

    Yukon Exploration and GEoloGY 2009 293 Soil reconnaissance of the Fort Selkirk volcanic field of the Fort Selkirk volcanic field, Yukon (115I/13 and 14). In: Yukon Exploration and Geology 2009, K.E. MacFarlane, L.H. Weston and L.R. Blackburn (eds.), Yukon Geological Survey, p. 293-304. aBStraCt Valley

  19. REMOVAL PROCESSES OF VOLCANIC ASH PARTICLES FROM THE ATMOSPHERE Gregg J.S. Bluth and William I. Rose, Michigan Technological University

    E-Print Network [OSTI]

    Bluth, Gregg

    REMOVAL PROCESSES OF VOLCANIC ASH PARTICLES FROM THE ATMOSPHERE Gregg J.S. Bluth and William I information for mapping ash hazards, as well as the means to study and predict the fates of volcanic clouds provide information on how the size, size distribution, and total mass of fine ash particles evolve

  20. Demonstration of 12 nm resolution Fresnel zone plate lens based soft x-ray microscopy

    E-Print Network [OSTI]

    Chao, W.

    2010-01-01

    of 12 nm Resolution Fresnel Zone Plate Lens based Soft X-raynanofabrication process for Fresnel zone plate lenses. Theoptical performance of Fresnel zone plate lens based imaging

  1. oZONE Faculty and Staff Exporting and Importing Grades

    E-Print Network [OSTI]

    Oklahoma, University of

    oZONE Faculty and Staff Exporting and Importing Grades Exporting/Importing Grades in oZONE The new - Log in to ozone.ou.edu using your OU Net ID (4+4) as you would in any other OU system. Click Importing Grades from a Exported oZONE template If you exported a course template from the oZONE grading

  2. Surf zone eddies coupled with rip current morphology

    E-Print Network [OSTI]

    Kirby, James T.

    Surf zone eddies coupled with rip current morphology Jamie H. MacMahan Oceanography Department. Thornton, and T. P. Stanton (2004), Surf zone eddies coupled with rip current morphology, J. Geophys. Res) surf zone eddies (SZEs) were observed on a beach composed of shore-connected shoals with quasi

  3. oZONE Faculty and Staff Course Overrides

    E-Print Network [OSTI]

    Oklahoma, University of

    oZONE Faculty and Staff Course Overrides and the Registration Add Errors They Resolve Departments of the overrides within the registration component of oZONE. We have, however, retained a few instances where some. There is also a link to this document on the Student Training and Instructions page in the oZONE info site

  4. Form-based zoning : what place is this code?

    E-Print Network [OSTI]

    Mehta, Shilpa, M.C.P. Massachusetts Institute of Technology

    2006-01-01

    Form-based zoning is a relatively recent innovation in zoning reform. Many cities in the U.S. have adopted form-based codes in lieu of or as a supplement to conventional zoning and many more are in the process of studying ...

  5. a bStomach Lung cell zone Clara cell

    E-Print Network [OSTI]

    Krasnow, Mark A.

    a bStomach Lung Chief-cell zone Stem-cell zone Mucus- cell zone Clara cell Tracheal airway Basal independent studies show that, if push comes to shove, differentiated cells of the stomach and lung can act and the other by Stange et al.2 published in Cell, find that followingdepletionofstemcellsinthestomach or lung

  6. Diffraction theory for azimuthally structured Fresnel zone plate

    E-Print Network [OSTI]

    Jahns, Jürgen

    Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and Jürgen Jahns A conventional Fresnel zone plate (FZP) consists of concentric rings with an alternating binary transmission of zero and one. In an azimuthally structured Fresnel zone plate (aFZP), the light transmission

  7. Comprehensive focusing analysis of various Fresnel zone plates

    E-Print Network [OSTI]

    Jahns, Jürgen

    Comprehensive focusing analysis of various Fresnel zone plates Qing Cao and Ju¨rgen Jahns Optische and the linear superposition principle, of the focusing performances of various Fresnel zone plates. Many similarity between Fresnel zone plates and multilevel diffractive lenses, most of the obtained results

  8. Modified Fresnel zone plates that produce sharp Gaussian focal spots

    E-Print Network [OSTI]

    Jahns, Jürgen

    Modified Fresnel zone plates that produce sharp Gaussian focal spots Qing Cao and Ju¨rgen Jahns Fresnel zone plate that can produce an approximate Gaussian focal spot is proposed for the focusing of 7.7 nm can be produced by a modified Fresnel zone plate with a minimum structure size of 30 nm

  9. Analysis of offsite emergency planning zones project

    SciTech Connect (OSTI)

    Petrocchi, A.J.; Armstrong, C.E. . Rocky Flats Plant); McKinney, J.M.; Verholek, M.G.; Fraser, P.J.; Dalfonso, P.H. )

    1991-07-18

    The Rocky Flats Plant maintains and uses significant nonradioactive chemically hazardous material (HAZMAT) inventories. Some of these materials are used in sufficient quantities to represent a credible risk to the offsite public in the event of an emergency at the facility. In Phase 2 of this project, the EG G Rocky Flats, Inc. and TENERA, L.P. Task Team (Task Team) produced an initial screening-level modeling analysis study and an Emergency Planning Zone (EPZ) encompassing the Vulnerable Zones (VZs) for hazardous materials stored at the facility. The screening-level analysis will be supplemented with more refined evaluations during subsequent phases of the project. The existence of these chemicals in the Rocky Flats Plant Occupational Health Information System (OHIS) chemical inventory database was verified. All liquid and gaseous chemicals were considered as potential hazardous material source terms for further screening analysis. Hazards associated with solid substances were not considered in this phase of the project. 2 figs., 13 tabs.

  10. Vadose Zone Transport Field Study: Summary Report

    SciTech Connect (OSTI)

    Ward, Andy L.; Conrad, Mark E.; Daily, William D.; Fink, James B.; Freedman, Vicky L.; Gee, Glendon W.; Hoversten, Gary M.; Keller, Jason M.; Majer, Ernest L.; Murray, Christopher J.; White, Mark D.; Yabusaki, Steven B.; Zhang, Z. F.

    2006-07-31

    From FY 2000 through FY 2003, a series of vadose zone transport field experiments were conducted as part of the U.S. Department of Energy’s Groundwater/Vadose Zone Integration Project Science and Technology Project, now known as the Remediation and Closure Science Project, and managed by the Pacific Northwest National Laboratory (PNNL). The series of experiments included two major field campaigns, one at a 299-E24-11 injection test site near PUREX and a second at a clastic dike site off Army Loop Road. The goals of these experiments were to improve our understanding of vadose zone transport processes; to develop data sets to validate and calibrate vadose zone flow and transport models; and to identify advanced monitoring techniques useful for evaluating flow-and-transport mechanisms and delineating contaminant plumes in the vadose zone at the Hanford Site. This report summarizes the key findings from the field studies and demonstrates how data collected from these studies are being used to improve conceptual models and develop numerical models of flow and transport in Hanford’s vadose zone. Results of these tests have led to a better understanding of the vadose zone. Fine-scale geologic heterogeneities, including grain fabric and lamination, were observed to have a strong effect on the large-scale behavior of contaminant plumes, primarily through increased lateral spreading resulting from anisotropy. Conceptual models have been updated to include lateral spreading and numerical models of unsaturated flow and transport have revised accordingly. A new robust model based on the concept of a connectivity tensor was developed to describe saturation-dependent anisotropy in strongly heterogeneous soils and has been incorporated into PNNL’s Subsurface Transport Over Multiple Phases (STOMP) simulator. Application to field-scale transport problems have led to a better understanding plume behavior at a number of sites where lateral spreading may have dominated waste migration (e.g. BC Cribs and Trenches). The improved models have been also coupled with inverse models and newly-developed parameter scaling techniques to allow estimation of field-scale and effective transport parameters for the vadose zone. The development and utility of pedotransfer functions for describing fine-scale hydrogeochemical heterogeneity and for incorporating this heterogeneity into reactive transport models was explored. An approach based on grain-size statistics appears feasible and has been used to describe heterogeneity in hydraulic properties and sorption properties, such as the cation exchange capacity and the specific surface area of Hanford sediments. This work has also led to the development of inverse modeling capabilities for time-dependent, subsurface, reactive transport with transient flow fields using an automated optimization algorithm. In addition, a number of geophysical techniques investigated for their potential to provide detailed information on the subtle changes in lithology and bedding surfaces; plume delineation, leak detection. High-resolution resistivity is now being used for detecting saline plumes at several waste sites at Hanford, including tank farms. Results from the field studies and associated analysis have appeared in more than 46 publications generated over the past 4 years. These publications include test plans and status reports, in addition to numerous technical notes and peer reviewed papers.

  11. Boullier The fault zone geology 1 Fault zone geology: lessons from drilling through the Nojima and 1

    E-Print Network [OSTI]

    Boyer, Edmond

    Boullier The fault zone geology 1 Fault zone geology: lessons from active faults with the aim of 11 learning about the geology of the fault all 18 their objectives, have still contributed to a better geological

  12. Diesel particulate filter with zoned resistive heater

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2011-03-08

    A diesel particulate filter assembly comprises a diesel particulate filter (DPF) and a heater assembly. The DPF filters a particulate from exhaust produced by an engine. The heater assembly has a first metallic layer that is applied to the DPF, a resistive layer that is applied to the first metallic layer, and a second metallic layer that is applied to the resistive layer. The second metallic layer is etched to form a plurality of zones.

  13. Capillary zone electrophoresis-mass spectrometer interface

    DOE Patents [OSTI]

    D`Silva, A.

    1996-08-06

    A device for providing equal electrical potential between two loci unconnected by solid or liquid electrical conductors is provided. The device comprises a first electrical conducting terminal, a second electrical conducting terminal connected to the first terminal by a rigid dielectric structure, and an electrically conducting gas contacting the first and second terminals. This device is particularly suitable for application in the electrospray ionization interface between a capillary zone electrophoresis apparatus and a mass spectrometer. 1 fig.

  14. Zoning and Permitting Resources | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobsMotion to Withdraw | Department ofMay 2014 NewsletterZoning and

  15. Classifying Three-way Seismic Volcanic Data by Dissimilarity Representation Diana Porro-Mu~noz , Isneri Talavera, Robert P.W. Duin, Mauricio Orozco-Alzate and John Makario Londo~no-Bonilla

    E-Print Network [OSTI]

    Duin, Robert P.W.

    Classifying Three-way Seismic Volcanic Data by Dissimilarity Representation Diana Porro in a natural way. As an example, the classification of seismic volcanic events is used. It is shown features. Keywords-volcanic seismic data, three-way representation, dissimilarity representation

  16. LRO observations of morphology and surface roughness of volcanic cones and lobate lava flows in the Marius Hills

    E-Print Network [OSTI]

    Glotch, Timothy D.

    of the cones are found in local groupings or alignments. The wide range of volcanic features, from broad low and Head, 1977; Weitz and Head, 1999]. As such, the Marius Hills represent a significant episode of lunar.5 Ga) [McCauley, 1967a; Whitford-Stark and Head, 1977; Heather and Dunkin, 2002; Heather et al., 2003

  17. GEOLOGY | August 2014 | www.gsapubs.org 1 Explosive to effusive transition during the largest volcanic eruption of

    E-Print Network [OSTI]

    Gonnermann, Helge

    is consistent with bubble collapse by permeable outgassing. Quantitative analysis indi- cates that outgassing persistent interconnected networks. This process, herein referred to as permeable outgassing, may reduce as to what extent permeable outgassing modulates volcanic erup- tions, in particular the transition between

  18. Coastal ecosystem responses to late stage Deccan Trap volcanism: the post KT boundary (Danian) palynofacies of Mumbai

    E-Print Network [OSTI]

    Spicer, Robert A

    ) palynofacies of Mumbai (Bombay), west India J.A. Crippsa,*, M. Widdowsonb , R.A. Spicerb , D.W. Jolleyc and their palaeontological contents. The impact of late stage Deccan volcanism upon biota inhabiting Mumbai (Bombay) Island of this flood basalt episode. Mumbai Island Formation intertrappean faunal and floral communities

  19. A 100-year record of North Pacific volcanism in an ice core from Eclipse Icefield, Yukon Territory, Canada

    E-Print Network [OSTI]

    Kurapov, Alexander

    for the development of longer ice core based records of paleovolcanism in the North Pacific rim. INDEX TERMS: 0305A 100-year record of North Pacific volcanism in an ice core from Eclipse Icefield, Yukon Territory Pacific over the last century has been developed using a glaciochemical record from Eclipse Icefield

  20. Volcanic particle aggregation in explosive eruption columns. Part I: Parameterization of the microphysics of hydrometeors and ash

    E-Print Network [OSTI]

    Rose, William I.

    of the microphysics of hydrometeors and ash C. Textor a,*, H.F. Graf a,1 , M. Herzog a,2 , J.M. Oberhuber b,3 Available online 15 December 2005 Abstract The aggregation of volcanic ash particles within the eruption of ash in the atmosphere and the radiative properties of the umbrella cloud. However, the information

  1. Volcanic Ash Fall--A "Hard Rain" of Abrasive Particles U.S. Department of the Interior

    E-Print Network [OSTI]

    V Volcanic Ash Fall--A "Hard Rain" of Abrasive Particles U.S. Department of the Interior U olcanic ash consists of tiny jagged particles of rock and natural glass blasted into the air by a volcano. Ash can threaten the health of people and live- stock, pose a hazard to flying jet aircraft, damage

  2. Lithospheric response to volcanic loading by the Canary Islands: constraints from seismic reflection data in their flexural moat

    E-Print Network [OSTI]

    Watts, A. B. "Tony"

    Lithospheric response to volcanic loading by the Canary Islands: constraints from seismic the seismic stratigraphy of the flexural moat that flanks the Canary Islands. The moat stratigraphy has been the volcanoes that make up the Canary Islands progressively load the underlying lithosphere from east to west

  3. Long-term desorption behavior of uranium and neptunium in heterogeneous volcanic tuff materials /

    SciTech Connect (OSTI)

    Dean, Cynthia A.

    2010-05-01

    Uranium and neptunium desorption were studied in long-term laboratory experiments using four well-characterized volcanic tuff cores collected from southeast of Yucca Mountain, Nevada. The objectives of the experiments were to 1. Demonstrate a methodology aimed at characterizing distributions of sorption parameters (attributes of multiple sorption sites) that can be applied to moderately-sorbing species in heterogeneous systems to provide more realistic reactive transport parameters and a more realistic approach to modeling transport in heterogeneous systems. 2. Focus on uranium and neptunium because of their high solubility, relatively weak sorption, and high contributions to predicted dose in Yucca Mountain performance assessments. Also, uranium is a contaminant of concern at many DOE legacy sites and uranium mining sites.

  4. ZipZone Technologies | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia:Illinois:WizardYates County,Zena, NewZhuluZipZone Technologies Jump

  5. Displacement Transfer Zone | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (UtilityInstrumentsArea (DOE GTP)Displacement Transfer Zone Jump to:

  6. Pellet Zone Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPIProtectio Program |ViewIllinois: EnergyPelham, New Hampshire:Zone Ltd Jump

  7. Climate Zone 7B | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company) Jump to:NewMinnesota:Protection Action2B Jump5BClimate Zone

  8. Coastal Zone Management Act | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company) JumpIowa: Energy ResourcesCreek,Coastal Zone Management Act

  9. Climate Zone Subtype A | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, search Name:Climate Zone Number 2Subtype A

  10. Climate Zone Subtype B | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, search Name:Climate Zone Number 2Subtype

  11. Climate Zone Subtype C | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, search Name:Climate Zone Number

  12. Climate Zone Number 2 | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, search Name:Climate Zone Number 2 Jump to:

  13. Climate Zone Number 3 | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, search Name:Climate Zone Number 2 Jump

  14. Climate Zone Number 5 | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower Ventures Jump to: navigation, search Name:Climate Zone Number 2

  15. NaturAnalogs for the Unsaturated Zone

    SciTech Connect (OSTI)

    A. Simmons; A. Unger; M. Murrell

    2000-03-08

    The purpose of this Analysis/Model Report (AMR) is to document natural and anthropogenic (human-induced) analog sites and processes that are applicable to flow and transport processes expected to occur at the potential Yucca Mountain repository in order to build increased confidence in modeling processes of Unsaturated Zone (UZ) flow and transport. This AMR was prepared in accordance with ''AMR Development Plan for U0135, Natural Analogs for the UZ'' (CRWMS 1999a). Knowledge from analog sites and processes is used as corroborating information to test and build confidence in flow and transport models of Yucca Mountain, Nevada. This AMR supports the Unsaturated Zone (UZ) Flow and Transport Process Model Report (PMR) and the Yucca Mountain Site Description. The objectives of this AMR are to test and build confidence in the representation of UZ processes in numerical models utilized in the UZ Flow and Transport Model. This is accomplished by: (1) applying data from Boxy Canyon, Idaho in simulations of UZ flow using the same methodologies incorporated in the Yucca Mountain UZ Flow and Transport Model to assess the fracture-matrix interaction conceptual model; (2) Providing a preliminary basis for analysis of radionuclide transport at Pena Blanca, Mexico as an analog of radionuclide transport at Yucca Mountain; and (3) Synthesizing existing information from natural analog studies to provide corroborating evidence for representation of ambient and thermally coupled UZ flow and transport processes in the UZ Model.

  16. Hydrocracking process using special juxtaposition of catalyst zones

    SciTech Connect (OSTI)

    Kukes, S.G.; Gutberlet, L.C.; Hensley, A.L. Jr.

    1989-01-10

    A process is described for hydrocracking a hydrocarbon feedstock with hydrogen at hydrocracking conversion conditions in a plurality of reaction zones in series which comprises: a. contacting the feedstock in a first reaction zone with a first hydrocracking catalyst comprising a nickel component and a tungsten component deposed on a support component consisting essentially of an alumina component and a crystalline molecular sieve component; b. contacting the effluent from the first reaction zone in a second reaction zone with a second hydrocracking catalyst comprising a cobalt component and a molybdenum component deposed on a support component comprising a silica-alumina component and a crystalline molecular sieve component; c. contacting the effluent from the second reaction zone in a third reaction zone with the first hydrocracking catalyst.

  17. Production from multiple zones of a tar sands formation

    DOE Patents [OSTI]

    Karanikas, John Michael; Vinegar, Harold J

    2013-02-26

    A method for treating a tar sands formation includes providing heat to at least part of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat is allowed to transfer from the heaters to at least a portion of the formation. Fluids are produced from the formation through at least one production well that is located in at least two zones in the formation. The first zone has an initial permeability of at least 1 darcy. The second zone has an initial of at most 0.1 darcy. The two zones are separated by a substantially impermeable barrier.

  18. Shear zone refraction and deflection in layered granular materials

    E-Print Network [OSTI]

    Tamas Borzsonyi; Tamas Unger; Balazs Szabo

    2009-12-09

    Refraction and deflection of shear zones in layered granular materials was studied experimentally and numerically. We show, that (i) according to a recent theoretical prediction [T. Unger, Phys. Rev. Lett. 98, 018301 (2007)] shear zones refract in layered systems in analogy with light refraction, (ii) zone refraction obeys Snell's law known from geometric optics and (iii) under natural pressure conditions (i.e. in the presence of gravity) the zone can also be deflected by the interface so that the deformation of the high friction material is avoided.

  19. Sandia Energy - NASA Award for Marginal Ice Zone Observations...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NASA Award for Marginal Ice Zone Observations and Process Experiment (MIZOPEX) Home Climate Office of Science News News & Events Research & Capabilities Monitoring Analysis...

  20. Stress and fault rock controls on fault zone hydrology, Coso...

    Open Energy Info (EERE)

    fault zone hydrology, Coso geothermal field, CA Abstract In crystalline rock of the Coso Geothermal Field, CA, fractures are the primary source of permeability. At reservoir...

  1. Modeling the emergence of the 'hot zones': tuberculosis and the ...

    E-Print Network [OSTI]

    2004-09-10

    Sep 19, 2004 ... Tuberculosis and Lung Disease have defined a hot zone as an area where the prevalence of MDRTB cases is >5% (that is, where >5% of.

  2. Variation in sericite composition from fracture zones within...

    Open Energy Info (EERE)

    within the geothermal system at Coso Hot Springs. Low-permeability zones of the crystalline basement contain coarse-grained relict muscovite, whereas rock alteration near...

  3. Geothermometry At Walker-Lane Transitional Zone Region (Shevenell...

    Open Energy Info (EERE)

    De Rocher, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Walker-Lane Transitional Zone Region (Shevenell & De Rocher,...

  4. Modeling-Computer Simulations At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Pritchett, 2004) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Modeling-Computer Simulations Activity Date Usefulness...

  5. Data Acquisition-Manipulation At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Data Acquisition-Manipulation At Walker-Lane Transitional Zone Region (Coolbaugh, Et Al., 2005 - 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration...

  6. Gradient zone boundary control in salt gradient solar ponds

    DOE Patents [OSTI]

    Hull, John R. (Downers Grove, IL)

    1984-01-01

    A method and apparatus for suppressing zone boundary migration in a salt gradient solar pond includes extending perforated membranes across the pond at the boundaries, between the convective and non-convective zones, the perforations being small enough in size to prevent individual turbulence disturbances from penetrating the hole, but being large enough to allow easy molecular diffusion of salt thereby preventing the formation of convective zones in the gradient layer. The total area of the perforations is a sizable fraction of the membrane area to allow sufficient salt diffusion while preventing turbulent entrainment into the gradient zone.

  7. Eastern Energy Zones Mapping Tool | Department of Energy

    Office of Environmental Management (EM)

    Planning Council (EISPC) has released the Energy Zones (EZ) Mapping Tool, a free, web-based interactive tool that will help states and other stakeholders in the Eastern...

  8. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    mdbaltimorenew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 4A Baltimore, Maryland Reference Buildings by Climate...

  9. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    acobouldernew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 5B Boulder, Colorado Reference Buildings by Climate...

  10. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    awaseattlenew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 4C Seattle, Washington Reference Buildings by Climate...

  11. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    nvlasvegasnew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 3B Las Vegas, Nevada Reference Buildings by Climate...

  12. Diffusion releases through one and two finite planar zones from...

    Office of Scientific and Technical Information (OSTI)

    Diffusion releases through one and two finite planar zones from a nuclear waste package Citation Details In-Document Search Title: Diffusion releases through one and two finite...

  13. Diffusion releases through one and two finite planar zones from...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Diffusion releases through one and two finite planar zones from a nuclear waste package Citation Details In-Document Search Title: Diffusion releases through one...

  14. Geodetic Survey At Central Nevada Seismic Zone Region (Blewitt...

    Open Energy Info (EERE)

    Geodetic Survey At Central Nevada Seismic Zone Region (Blewitt, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geodetic Survey At...

  15. Geographic Information System At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Geographic Information System At Central Nevada Seismic Zone Region (Blewitt, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  16. Modeling-Computer Simulations At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Modeling-Computer Simulations At Central Nevada Seismic Zone Region (Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  17. Data Acquisition-Manipulation At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Data Acquisition-Manipulation At Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005 - 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  18. Refraction Survey At Central Nevada Seismic Zone Region (Heimgartner...

    Open Energy Info (EERE)

    Refraction Survey At Central Nevada Seismic Zone Region (Heimgartner, Et Al., 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Refraction...

  19. Modeling-Computer Simulations At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Modeling-Computer Simulations At Central Nevada Seismic Zone Region (Biasi, Et Al., 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  20. Compound and Elemental Analysis At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Compound and Elemental Analysis At Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  1. Compound and Elemental Analysis At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Compound and Elemental Analysis At Central Nevada Seismic Zone Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Compound and...

  2. Geographic Information System At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Geographic Information System At Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005 - 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  3. Direct-Current Resistivity Survey At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Direct-Current Resistivity Survey At Central Nevada Seismic Zone Region (Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  4. Teleseismic-Seismic Monitoring At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Teleseismic-Seismic Monitoring At Walker-Lane Transitional Zone Region (Biasi, Et Al., 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  5. Teleseismic-Seismic Monitoring At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Teleseismic-Seismic Monitoring At Central Nevada Seismic Zone Region (Biasi, Et Al., 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  6. Geodetic Survey At Central Nevada Seismic Zone Region (Blewitt...

    Open Energy Info (EERE)

    Geodetic Survey At Central Nevada Seismic Zone Region (Blewitt Et Al, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geodetic Survey At...

  7. Thermal Gradient Holes At Central Nevada Seismic Zone Region...

    Open Energy Info (EERE)

    Thermal Gradient Holes At Central Nevada Seismic Zone Region (Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal Gradient...

  8. Isotopic Analysis At Central Nevada Seismic Zone Region (Kennedy...

    Open Energy Info (EERE)

    Isotopic Analysis At Central Nevada Seismic Zone Region (Kennedy & Van Soest, 2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic...

  9. Direct-Current Resistivity At Central Nevada Seismic Zone Region...

    Open Energy Info (EERE)

    Direct-Current Resistivity At Central Nevada Seismic Zone Region (Pritchett, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current...

  10. Geothermometry At Central Nevada Seismic Zone Region (Shevenell...

    Open Energy Info (EERE)

    Geothermometry At Central Nevada Seismic Zone Region (Shevenell & De Rocher, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry...

  11. Geographic Information System At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Geographic Information System At Central Nevada Seismic Zone Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic...

  12. Field Mapping At Central Nevada Seismic Zone Region (Shevenell...

    Open Energy Info (EERE)

    Field Mapping At Central Nevada Seismic Zone Region (Shevenell, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At...

  13. Trace Element Analysis At Central Nevada Seismic Zone Region...

    Open Energy Info (EERE)

    Trace Element Analysis At Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Trace...

  14. Teleseismic-Seismic Monitoring At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Teleseismic-Seismic Monitoring At Walker-Lane Transitional Zone Region (Biasi, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  15. Teleseismic-Seismic Monitoring At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Teleseismic-Seismic Monitoring At Central Nevada Seismic Zone Region (Biasi, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  16. Field Mapping At Central Nevada Seismic Zone Region (Blewitt...

    Open Energy Info (EERE)

    Field Mapping At Central Nevada Seismic Zone Region (Blewitt, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At...

  17. Four-year prospective study of the respiratory effects of volcanic ash from Mt. St. Helens

    SciTech Connect (OSTI)

    Buist, A.S.; Vollmer, W.M.; Johnson, L.R.; Bernstein, R.S.; McCamant, L.E.

    1986-04-01

    This report describes the 4-yr follow-up of 712 loggers exposed over an extended period to varying levels of fresh volcanic ash from the 1980 eruptions of Mt. St. Helens. Concerns related to the irritant effect the ash might have on the airways and also to its fibrogenic potential if exposures were intense and continued over many years. Our subjects were divided into 3 groups: high, low, and no exposure. Baseline testing was begun in June 1980, 1 month after the major eruption, and follow-up testing continued on an annual basis through 1984; 88% of the loggers have been tested at least 3 times. Analysis of lung function data showed that a significant, exposure-related decline in FEV1 occurred during the first year after the eruption. The decline was short-lived, however, and by 1984 the differences between exposure groups were no longer significant. Self-reported symptoms of cough, phlegm, and wheeze showed a similar pattern. No ash-related changes were seen in chest roentgenograms taken in 1980 and in 1984. Our findings are consistent with the hypothesis that the inhaled ash caused mucus hypersecretion and/or airway inflammation that reversed when the exposure levels decreased. The ash levels to which the loggers were exposed were low compared with permissible occupational levels for nuisance dusts, but generally higher than the total suspended particulate levels permissible in ambient air.

  18. ASHEE: a compressible, equilibrium-Eulerian model for volcanic ash plumes

    E-Print Network [OSTI]

    Cerminara, Matteo; Berselli, Luigi Carlo

    2015-01-01

    A new fluid-dynamic model is developed to numerically simulate the non-equilibrium dynamics of polydisperse gas-particle mixtures forming volcanic plumes. Starting from the three-dimensional N-phase Eulerian transport equations for a mixture of gases and solid particles, we adopt an asymptotic expansion strategy to derive a compressible version of the first-order non-equilibrium model, valid for low concentration regimes and small particles Stokes $St<0.2$. When $St < 0.001$ the model reduces to the dusty-gas one. The new model is significantly faster than the Eulerian model while retaining the capability to describe gas-particle non-equilibrium. Direct numerical simulation accurately reproduce the dynamics of isotropic turbulence in subsonic regime. For gas-particle mixtures, it describes the main features of density fluctuations and the preferential concentration of particles by turbulence, verifying the model reliability and suitability for the simulation of high-Reynolds number and high-temperature ...

  19. Deep Vadose Zone Applied Field Research Initiative (DVZ AFRI) - Overview

    SciTech Connect (OSTI)

    2011-02-01

    The Deep Vadoze Zone Applied Field Research Initiative (DVZ AFRI) was established to protect water resources and to address the challenge of preventing contamination in the deep vadose zone from reaching groundwater. This factsheet provides an overview of the initiative and the approach to integrate basic science and needs-driven applied research activities with cleanup operations.

  20. Nitrous Oxide Emissions from the Gulf of Mexico Hypoxic Zone

    E-Print Network [OSTI]

    Nitrous Oxide Emissions from the Gulf of Mexico Hypoxic Zone J O H N T . W A L K E R , * , C R A I,thoughlargenitrogeninputsanddeoxygenation typical of these systems create the potential for large N2O emissions. We report the first N2O emission measurements from the Gulf of Mexico Hypoxic Zone (GOMHZ), including an estimate of the emission "pulse

  1. GROUNDWATER NITRATE REMOVAL CAPACITY OF RIPARIAN ZONES IN

    E-Print Network [OSTI]

    Gold, Art

    GROUNDWATER NITRATE REMOVAL CAPACITY OF RIPARIAN ZONES IN URBANIZING WATERSHEDS BY TARA KIMBERLY the watershed, however, is not well understood. Nitrate in groundwater moving through the "biologically active and geomorphology of riparian zones, potentially changing riparian groundwater denitrification capacity. Little work

  2. Two-zone countercurrent smelter system and process

    DOE Patents [OSTI]

    Cox, J.H.; Fruehan, R.J.; Elliott, J.F.

    1995-01-03

    A process for continuously smelting iron ore by use of coal to yield molten iron or semi-steel is disclosed. The process comprises the steps of establishing a melt covered by slag; inducing the slag and the molten iron to flow countercurrently to one another, toward opposite ends of the smelter; maintaining iron oxide-reducing conditions in that zone of the smelter towards which the slag flows; maintaining carbon-oxidizing conditions in that zone of the smelter towards which the molten iron flows; continuously or semicontinuously tapping the slag from the reducing zone end of the smelter; continuously or semicontinuously tapping the molten iron from the oxidizing zone end of the smelter; and adding to both zones iron ore, coal, oxygen, and flux at addition rates sufficient to keep the molten iron in the reducing zone substantially saturated with carbon, maintain in the slag being tapped an FeO content of about 5 weight percent or less, and maintain in the molten iron being tapped a carbon content of about 0.5 to 5 weight percent. A slag dam preferably is included in the smelter, to impede the backflow of the slag from the reducing zone to the oxidizing zone. A metal bath dam with one or more flow-through portals also is preferably used, submerged below the slag dam, to impede the backflow of the hot metal. 8 figures.

  3. Appraisal of nuclear waste isolation in the vadose zone in arid and semiarid regions (with emphasis on the Nevada Test Site)

    SciTech Connect (OSTI)

    Wollenberg, H.A.; Wang, J.S.Y.; Korbin, G.

    1983-05-01

    An appraisal was made of the concept of isolating high-level radioactive waste in the vadose zone of alluvial-filled valleys and tuffaceous rocks of the Basin and Range geomorphic province. Principal attributes of these terranes are: (1) low population density, (2) low moisture influx, (3) a deep water table, (4) the presence of sorptive rocks, and (5) relative ease of construction. Concerns about heat effects of waste on unsaturated rocks of relatively low thermal conductivity are considered. Calculations show that a standard 2000-acre repository with a thermal loading of 40 kW/acre in partially saturated alluvium or tuff would experience an average temperature rise of less than 100{sup 0}C above the initial temperature. The actual maximum temperature would depend strongly on the emplacement geometry. Concerns about seismicity, volcanism, and future climatic change are also mitigated. The conclusion reached in this appraisal is that unsaturated zones in alluvium and tuff of arid regions should be investigated as comprehensively as other geologic settings considered to be potential repository sites.

  4. High gain photoconductive semiconductor switch having tailored doping profile zones

    DOE Patents [OSTI]

    Baca, Albert G. (Albuquerque, NM); Loubriel, Guillermo M. (Albuquerque, NM); Mar, Alan (Albuquerque, NM); Zutavern, Fred J (Albuquerque, NM); Hjalmarson, Harold P. (Albuquerque, NM); Allerman, Andrew A. (Albuquerque, NM); Zipperian, Thomas E. (Edgewood, NM); O'Malley, Martin W. (Edgewood, NM); Helgeson, Wesley D. (Albuquerque, NM); Denison, Gary J. (Sandia Park, NM); Brown, Darwin J. (Albuquerque, NM); Sullivan, Charles T. (Albuquerque, NM); Hou, Hong Q. (Albuquerque, NM)

    2001-01-01

    A photoconductive semiconductor switch with tailored doping profile zones beneath and extending laterally from the electrical contacts to the device. The zones are of sufficient depth and lateral extent to isolate the contacts from damage caused by the high current filaments that are created in the device when it is turned on. The zones may be formed by etching depressions into the substrate, then conducting epitaxial regrowth in the depressions with material of the desired doping profile. They may be formed by surface epitaxy. They may also be formed by deep diffusion processes. The zones act to reduce the energy density at the contacts by suppressing collective impact ionization and formation of filaments near the contact and by reducing current intensity at the contact through enhanced current spreading within the zones.

  5. Mushy-zone model with an exact solution

    SciTech Connect (OSTI)

    Solomon, A. D.; Wilson, D. G.; Alexiades, V.

    1982-04-01

    In this paper we propose a very simple model of a mushy zone which admits of an explicit solution. To our knowledge, it is the only instance where an actual observation of the mushy zone width and structure is used as a partial basis for the model definition. The model rests upon two unknown parameters. The first determines the relation between the equilibrium temperature gradient and the mushy zone width. The second depends upon the dendritic structure in the mushy zone, and is related to the solid fraction. Both can be estimated from experiments. We will limit ourselves to defining the model, presenting its closed form solution, and giving tables from which the solution can be found explicitly. It is shown that in most cases the predicted mushy zone is of very negligible importance.

  6. Predicting and validating the tracking of a Volcanic Ash Cloud during the 2006 Eruption of Mt. Augustine Volcano

    SciTech Connect (OSTI)

    Webley, Peter W.; Atkinson, D.; Collins, Richard L.; Dean, K.; Fochesatto, J.; Sassen, Kenneth; Cahill, Catherine F.; Prata, A.; Flynn, Connor J.; Mizutani, K.

    2008-11-01

    On 11 January 2006, Mount Augustine volcano in southern Alaska began erupting after 20-year repose. The Anchorage Forecast Office of the National Weather Service (NWS) issued an advisory on 28 January for Kodiak City. On 31 January, Alaska Airlines cancelled all flights to and from Anchorage after multiple advisories from the NWS for Anchorage and the surrounding region. The Alaska Volcano Observatory (AVO) had reported the onset of the continuous eruption. AVO monitors the approximately 100 active volcanoes in the Northern Pacific. Ash clouds from these volcanoes can cause serious damage to an aircraft and pose a serious threat to the local communities, and to transcontinental air traffic throughout the Arctic and sub-Arctic region. Within AVO, a dispersion model has been developed to track the dispersion of volcanic ash clouds. The model, Puff, was used operational by AVO during the Augustine eruptive period. Here, we examine the dispersion of a volcanic ash cloud from Mount Augustine across Alaska from 29 January through the 2 February 2006. We present the synoptic meteorology, the Puff predictions, and measurements from aerosol samplers, laser radar (or lidar) systems, and satellites. UAF aerosol samplers revealed the presence of volcanic aerosols at the surface at sites where Puff predicted the ash clouds movement. Remote sensing satellite data showed the development of the ash cloud in close proximity to the volcano and a sulfur-dioxide cloud further from the volcano consistent with the Puff predictions. Lidars showed the presence of volcanic aerosol with consistent characteristics aloft over Alaska and were capable of detecting the aerosol, even in the presence of scattered clouds and where the cloud is too thin/disperse to be detected by remote sensing satellite data. The lidar measurements revealed the different trajectories of ash consistent with the Puff predictions. Dispersion models provide a forecast of volcanic ash cloud movement that might be undetectable by any other means but are still a significant hazard. Validation is the key to assessing the accuracy of any future predictions. The study highlights the use of multiple and complementary observations used in detecting the trajectory ash cloud, both at the surface and aloft within the atmosphere.

  7. Problem of Vain Energy Consumption in a VAV Air Conditioning System Shared By an Inner Zone and Exterior Zone 

    E-Print Network [OSTI]

    Wenji, G.; Ling, C.; Dongdong, L.; Mei, S.; Li, Z.

    2006-01-01

    in winter and summer. Taking a practical project as example, this paper analyzes the energy consumption of a VAV air conditioning system that is shared by inner zone and exterior zone. The paper also points out the serious problem of useless energy...

  8. SATURATED ZONE FLOW AND TRANSPORT MODEL ABSTRACTION

    SciTech Connect (OSTI)

    B.W. ARNOLD

    2004-10-27

    The purpose of the saturated zone (SZ) flow and transport model abstraction task is to provide radionuclide-transport simulation results for use in the total system performance assessment (TSPA) for license application (LA) calculations. This task includes assessment of uncertainty in parameters that pertain to both groundwater flow and radionuclide transport in the models used for this purpose. This model report documents the following: (1) The SZ transport abstraction model, which consists of a set of radionuclide breakthrough curves at the accessible environment for use in the TSPA-LA simulations of radionuclide releases into the biosphere. These radionuclide breakthrough curves contain information on radionuclide-transport times through the SZ. (2) The SZ one-dimensional (I-D) transport model, which is incorporated in the TSPA-LA model to simulate the transport, decay, and ingrowth of radionuclide decay chains in the SZ. (3) The analysis of uncertainty in groundwater-flow and radionuclide-transport input parameters for the SZ transport abstraction model and the SZ 1-D transport model. (4) The analysis of the background concentration of alpha-emitting species in the groundwater of the SZ.

  9. Hydrogen Greenhouse Planets Beyond the Habitable Zone

    E-Print Network [OSTI]

    Pierrehumbert, Raymond

    2011-01-01

    We show that collision-induced absorption allows molecular hydrogen to act as an incondensible greenhouse gas, and that bars or tens of bars of primordial H2-He mixtures can maintain surface temperatures above the freezing point of water well beyond the "classical" habitable zone defined for CO2 greenhouse atmospheres. Using a 1-D radiative-convective model we find that 40 bars of pure H2 on a 3 Earth-mass planet can maintain a surface temperature of 280K out to 1.5AU from an early-type M dwarf star and 10 AU from a G-type star. Neglecting the effects of clouds and of gaseous absorbers besides H2, the flux at the surface would be sufficient for photosynthesis by cyanobacteria (in the G star case) or anoxygenic phototrophs (in the M star case). We argue that primordial atmospheres of one to several hundred bars of H2-He are possible, and use a model of hydrogen escape to show that such atmospheres are likely to persist further than 1.5 AU from M stars, and 2 AU from G stars, assuming these planets have protect...

  10. Confined zone dispersion flue gas desulfurization demonstration

    SciTech Connect (OSTI)

    Not Available

    1992-02-27

    The confined zone dispersion (CZD) process involves flue gas post-treatment, physically located between a boiler's outlet and its particulate collector, which in the majority of cases is an electrostatic precipitator. The features that distinguish this process from other similar injection processes are: Injection of an alkaline slurry directly into the duct, instead of injection of dry solids into the duct ahead of a fabric filter. Use of an ultrafine calcium/magnesium hydroxide, type S pressure-hydrated dolomitic lime. This commercial product is made from plentiful, naturally occurring dolomite. Low residence time, made possible by the high effective surface area of the Type S lime. Localized dispersion of the reagent. Slurry droplets contact only part of the gas while the droplets are drying, to remove up to 50 percent of the S0{sub 2} and significant amounts of NO{sub x}. The process uses dual fluid rather than rotary atomizers. Improved electrostatic precipitator performance via gas conditioning from the increased water vapor content, and lower temperatures. Supplemental conditioning with S0{sub 3} is not believed necessary for satisfactory removal of particulate matter.

  11. Features and Dimensions of the Hayward fault zone in the Strawberry and Blackberry Creek Area Berkeley, California

    E-Print Network [OSTI]

    Williams, P.L.

    2011-01-01

    Hayward Fault Zone in the Strawberry and Blackberry Creekward Fault Zone in the Strawberry and Blackberry Creek Area,Hayward fault zone in the Strawberry and Blackberry Creek

  12. Characterization of Persistent Volatile Contaminant Sources in the Vadose Zone

    SciTech Connect (OSTI)

    Carroll, Kenneth C.; Truex, Michael J.; Brusseau, Mark L.; Parker, Kyle R.; Mackley, Rob D.; Rohay, Virginia J.

    2013-05-01

    Remediation activities over time will alter the subsurface distribution of contaminants and likely create significant changes in the source-zone architecture. A field method was demonstrated for use of data collected from multiple individual soil vapor extraction (SVE) system well tests to locate and characterize the distribution of persistent VOC sources in the vadose zone. Operational data collected at the Department of Energy’s Hanford site were used to examine source zone alteration over time due to SVE operation and to illustrate the source-zone characterization approach. Individual well test results confirmed a heterogeneous distribution of permeability and contaminant mass discharge throughout the vadose zone. The trends in mass discharge and concentration were analyzed to determine the location and extent of the primary source zone within a lower-permeability unit at the site. This information is useful to evaluate the performance of SVE operations, and support decisions concerning system alteration or closure based on risk assessments of the impact of vadose-zone sources on groundwater contamination or vapor intrusion.

  13. Revised process for work zone decision-making based on quantitative performance measures 

    E-Print Network [OSTI]

    Hartmann, Thomas Wayne

    2008-10-10

    Work zones create one of the most challenging environments for drivers. Implementing work zones on urban freeways creates many issues, especially with respect to mobility. Decisions made regarding the work zone should be informed by quantitative...

  14. A site scale model for modeling unsaturated zone processes at Yucca Mountain, Nevada

    E-Print Network [OSTI]

    1997-01-01

    Unsaturated Zone Model of Yucca Mountain, Nevada, for theZone Trocesses at yucca Mountain, N G. S. Bodvarsson, Y. S.unsaturated zone at Yucca Mountain, Nevada, as a permanent

  15. Zoning for earth sheltered buildings. A guide for Minnesota communities

    SciTech Connect (OSTI)

    Not Available

    1983-08-01

    Background information on earth sheltered buildings and the zoning issues related to this construction techniques is provided. Ways to develop goals and policies on earth sheltering and integrate them into existing planning documents are outlined. Ways to eliminate prohibitions and barriers to earth-sheltered buildings from zoning language are explained. Subdivision and planned unit development (PUD) regulations designed to facilitate and encourage new developments of earth sheltered homes are considered. Model language on planning, zoning, and subdivisions and planned unit developments and a summary of the various recommendations made throughout the guidebook are included. (MHR)

  16. Electrically heated particulate filter with zoned exhaust flow control

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2012-06-26

    A system includes a particulate matter (PM) filter that includes X zones. An electrical heater includes Y heater segments that are associated with respective ones of the X zones. The electrical heater is arranged upstream from and proximate with the PM filter. A valve assembly includes Z sections that are associated with respective ones of the X zones. A control module adjusts flow through each of the Z sections during regeneration of the PM filter via control of the valve assembly. X, Y and Z are integers.

  17. Confined zone dispersion project. Final technical report

    SciTech Connect (OSTI)

    NONE

    1994-06-01

    This report describes the performance of the confined zone dispersion (CZD) flue gas desulfurization (FGD) system in removing sulfur dioxide (SO{sub 2}) from flue gas in the coal-fired boiler. The CZD-FGD system, installed at Pennsylvania Electric Company`s (Penelec`s) Seward Power Station, was designed to remove 50% of the SO{sub 2} from one-half of Unit No. 5`s flue gas when the boiler is fired with 1.5% sulfur coal. Section 1 discusses the significance of CZD, the purpose of this report, the history of the project, and the role of DOE in the project, describes the project organization, and lists the six design areas involving proprietary information. Section 2 presents project location, objectives, and phases, and discusses the test program. Section 3 explains the process flow diagram, piping and instrumentation diagrams and operating controls, site plan, equipment layouts, and process equipment. Section 4 provides an integrated discussion of all the test results obtained during the test program, backed by tabulations and graphics. Section 5 describes the testing failures and corrective actions taken. Section 6, reliability/availability/maintainability analysis data of major equipment, covers the following systems: atomizing, sootblowing, lime, flue gas, and controls and instrumentation. Section 7 summarizes the capital cost requirements for the Seward CZD demonstration unit and discusses the capital and operating costs of installing the process at plants with various unit capacities. Section 8 discusses plans to continue the CZD demonstration to achieve longer term continuous operation at SO{sub 2} removals of 50%. Section 9 presents the principal findings of the CZD demonstration and recommends additional testing.

  18. TRANSITION FROM THE SECTOR ZONE TO THE UNIPOLAR ZONE IN THE HELIOSHEATH: VOYAGER 2 MAGNETIC FIELD OBSERVATIONS

    SciTech Connect (OSTI)

    Burlaga, L. F. [NASA Goddard Space Flight Center, Code 673, Greenbelt, MD 20771 (United States); Ness, N. F., E-mail: lburlagahsp@verizon.net, E-mail: nfnudel@yahoo.com [Institute for Astrophysics and Computational Sciences, Catholic University of America, Washington, DC 20064 (United States)

    2011-08-10

    The magnetic polarity pattern observed by Voyager 2 (V2) evolved with time from a nearly equal mixture of positive and negative polarity sectors in the sector zone from 2007.00 to 2007.67 to nearly uniform positive polarity (magnetic fields directed away from the Sun) in the unipolar zone from 2009.6 to 2010.3. This change was caused by the decreasing latitudinal extent of the sector zone, when the minimum extent of the heliospheric current sheet moved northward toward the solar equator as the solar activity associated with solar cycle 23 decreased a minimum in 2010. In the heliosheath, the distribution of daily averages of the magnetic field strength B was lognormal in the sector zone from 2008.83 to 2009.57 and Gaussian in the unipolar zone from 2009.57 to 2010.27. The distribution of daily increments of B was a Tsallis distribution (q-Gaussian distribution) with q = 1.66 {+-} 0.01 in the sector zone and {approx}Gaussian (q = 1.01 {+-} 0.29) in the unipolar zone. The unipolar region appears to be in a relatively undisturbed equilibrium state.

  19. Exploration of Resource and Transmission Expansion Decisions in the Western Renewable Energy Zone Initiative

    E-Print Network [OSTI]

    Mills, Andrew D

    2011-01-01

    Colorado: National Renewable Energy Laboratory. NREL/SR-Decisions in the Western Renewable Energy Zone Initiative.Finn, J. 2009. Western Renewable Energy Zones, Phase 1: QRA

  20. Human dimensions perspectives on the impacts of coastal zone marine renewable energy

    E-Print Network [OSTI]

    Pomeroy, Caroline; Conway, Flaxen; Hall-Arber, Madeleine

    2013-01-01

    coastal zone marine renewable energy generation. REFERENCESOuter Continental Shelf Renewable Energy Space-Use ConflictsOF COASTAL ZONE MARINE RENEWABLE ENERGY Caroline Pomeroy,

  1. ENERGY IN THE PACIFIC COASTAL ZONE DOES D.O.E. HAVE A ROLE?

    E-Print Network [OSTI]

    Ritschard, Ronald L.

    2013-01-01

    sting Regional Energy Supply Issues • Zone . • . • . ision-coastal zone, planned energy supply developments also areforecasts regional energy supply dependence on the coastal

  2. Human dimensions perspectives on the impacts of coastal zone marine renewable energy

    E-Print Network [OSTI]

    Pomeroy, Caroline; Conway, Flaxen; Hall-Arber, Madeleine

    2013-01-01

    coastal zone marine renewable energy generation. REFERENCESOF COASTAL ZONE MARINE RENEWABLE ENERGY Caroline Pomeroy,and implementing marine renewable energy (MRE) development

  3. Walling political conflicts : an urban archetype for the Demilitarized Zone

    E-Print Network [OSTI]

    Hong, Jihak

    2014-01-01

    Polarity in political ideologies within the Korea Peninsula has left a heavily militarized infrastructure, called the Korean Demilitarized Zone (DMZ). The no man's land is a thickly belted corridor on the Korean peninsula ...

  4. Thermal Waters Along The Konocti Bay Fault Zone, Lake County...

    Open Energy Info (EERE)

    Thermal Waters Along The Konocti Bay Fault Zone, Lake County, California- A Re-Evaluation Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

  5. Lithospheric dynamics of Earth's subduction zones and Martian tectonic provinces

    E-Print Network [OSTI]

    Ding, Min, Ph. D. Massachusetts Institute of Technology

    2015-01-01

    This thesis investigates lithospheric dynamics of Earth's subduction zones and Martian tectonic provinces on multiple time scales ranging from short-term earthquake deformation to long-term tectonic loading. In Chapter 2, ...

  6. A Simple Technique for Islanding Detection with Negligible Nondetection Zone

    E-Print Network [OSTI]

    Kirtley Jr, James L.

    Although active islanding detection techniques have smaller nondetection zones than passive techniques, active methods could degrade the system power quality and are not as simple and easy to implement as passive methods. ...

  7. Nitrous Oxide Production in the Gulf of Mexico Hypoxic Zone 

    E-Print Network [OSTI]

    Visser, Lindsey A.

    2010-10-12

    The Gulf of Mexico hypoxic zone is created by strong persistent water stratification and nutrient loading from the Mississippi River which fuels primary production and bacterial decomposition. The Texas-Louisiana shelf ...

  8. A Gas-Fired Heat Pipe Zone Heater 

    E-Print Network [OSTI]

    Winn, C. B.; Burns, P.; Guire, J.

    1984-01-01

    A gas-fired vented zone heater has recently been developed by the Altar Corporation for Colorado State University (CSU) under a Gas Research Institute (GRI) contract. The unit war developed for auxiliary heating applications in passive solar...

  9. MULTIVARIATE VISUALIZATION OF DATA QUALITY ELEMENTS FOR COASTAL ZONE MONITORING

    E-Print Network [OSTI]

    MULTIVARIATE VISUALIZATION OF DATA QUALITY ELEMENTS FOR COASTAL ZONE MONITORING D. E. van de Vlag for illustrating quantitative values of quality elements using multivariate visualization techniques. Quality, temporal accuracy and completeness. By combining multivariate visualization with the technique of multiple

  10. Controls on earthquake rupture and triggering mechanisms in subduction zones

    E-Print Network [OSTI]

    Llenos, Andrea Lesley

    2010-01-01

    Large earthquake rupture and triggering mechanisms that drive seismicity in subduction zones are investigated in this thesis using a combination of earthquake observations, statistical and physical modeling. A comparison ...

  11. Reference Buildings by Climate Zone and Representative City:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    hicago-oharenew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 5A Chicago, Illinois Reference Buildings by Climate...

  12. Development of Hydrologic Characterization Technology of Fault Zones

    SciTech Connect (OSTI)

    Karasaki, Kenzi; Onishi, Tiemi; Wu, Yu-Shu

    2008-03-31

    Through an extensive literature survey we find that there is very limited amount of work on fault zone hydrology, particularly in the field using borehole testing. The common elements of a fault include a core, and damage zones. The core usually acts as a barrier to the flow across it, whereas the damage zone controls the flow either parallel to the strike or dip of a fault. In most of cases the damage zone isthe one that is controlling the flow in the fault zone and the surroundings. The permeability of damage zone is in the range of two to three orders of magnitude higher than the protolith. The fault core can have permeability up to seven orders of magnitude lower than the damage zone. The fault types (normal, reverse, and strike-slip) by themselves do not appear to be a clear classifier of the hydrology of fault zones. However, there still remains a possibility that other additional geologic attributes and scaling relationships can be used to predict or bracket the range of hydrologic behavior of fault zones. AMT (Audio frequency Magneto Telluric) and seismic reflection techniques are often used to locate faults. Geochemical signatures and temperature distributions are often used to identify flow domains and/or directions. ALSM (Airborne Laser Swath Mapping) or LIDAR (Light Detection and Ranging) method may prove to be a powerful tool for identifying lineaments in place of the traditional photogrammetry. Nonetheless not much work has been done to characterize the hydrologic properties of faults by directly testing them using pump tests. There are some uncertainties involved in analyzing pressure transients of pump tests: both low permeability and high permeability faults exhibit similar pressure responses. A physically based conceptual and numerical model is presented for simulating fluid and heat flow and solute transport through fractured fault zones using a multiple-continuum medium approach. Data from the Horonobe URL site are analyzed to demonstrate the proposed approach and to examine the flow direction and magnitude on both sides of a suspected fault. We describe a strategy for effective characterization of fault zone hydrology. We recommend conducting a long term pump test followed by a long term buildup test. We do not recommend isolating the borehole into too many intervals. We do recommend ensuring durability and redundancy for long term monitoring.

  13. Reaction zone visualisation in swirling spray n-heptane flames

    E-Print Network [OSTI]

    Yuan, R.; Kariuki, J.; Dowlut, A.; Balachandran, R.; Mastorakos, E.

    2014-06-26

    = 5925 words Colloquium: Spray and droplet combustion (7) Alternative Colloquium: IC engine and Gas Turbine Combustion (11) Supplemental Material: no 2 Reaction zone visualisation in swirling spray n-heptane flames R. Yuan1,*, J... advanced turbulent combustion models. In gas turbines and industrial furnaces, the flame is virtually always stabilised by swirl. It can be argued that we know little about the fundamental processes of extinction of spray flames in recirculation zones...

  14. Varying heating in dawsonite zones in hydrocarbon containing formations

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Xie, Xueying (Houston, TX); Miller, David Scott (Katy, TX)

    2009-07-07

    A method for treating an oil shale formation comprising dawsonite includes assessing a dawsonite composition of one or more zones in the formation. Heat from one or more heaters is provided to the formation such that different amounts of heat are provided to zones with different dawsonite compositions. The provided heat is allowed to transfer from the heaters to the formation. Fluids are produced from the formation.

  15. Method for processing seismic data to identify anomalous absorption zones

    DOE Patents [OSTI]

    Taner, M. Turhan

    2006-01-03

    A method is disclosed for identifying zones anomalously absorptive of seismic energy. The method includes jointly time-frequency decomposing seismic traces, low frequency bandpass filtering the decomposed traces to determine a general trend of mean frequency and bandwidth of the seismic traces, and high frequency bandpass filtering the decomposed traces to determine local variations in the mean frequency and bandwidth of the seismic traces. Anomalous zones are determined where there is difference between the general trend and the local variations.

  16. Gigantic Ordovician volcanic ash fall in North America and Europe: Biological, tectonomagmatic, and event-stratigraphic significance

    SciTech Connect (OSTI)

    Huff, W.D. (Univ. of Cincinnati, OH (United States)); Bergstroem, S.M. (Ohio State Univ., Columbus (United States)); Kolata, D.R. (Illinois State Geological Survey, Champaign (United States))

    1992-10-01

    Biostratigraphical, geochemical, isotopic, and paleogeographic data suggest that the Millbrig K-bentonite, one of the thickest and most widespread Ordovician volcanic ash beds in eastern North America, is the same as the so-called 'Big Bentonite' in Baltoscandia. This is the first time that the same K-bentonite has been identified in both North America and Europe, and it serves as a unique event-stratigraphic marker over a large portion of the Northern Hemisphere. This eruption produced at least 340 km[sup 3] of dense-rock-equivalent ash that was deposited in a layer up to 1-2 m thick over several million square kilometers. As much as 800 km[sup 3] of additional ash may have fallen into the Iapetus Ocean, for a total of 1,140 km[sup 3]. Trace element geochemistry shows that the ash was derived from a felsic calc-alkalic magmatic source characteristic of volcanism in a continental crust-based, destructive plate-margin setting. This is one of the largest, if not the largest, ash falls recorded in Earth's Phanerozoic stratigraphic record, but its recognizable effect on faunas and floras was minimal, and it did not result in a global extinction event. The Millbrig-Big Bentonite bed provides accurate time control for sedimentologic, paleoecologic, and paleogeographic reconstructions across plates positioned in tropical (Laurentia) and temperate (Baltica) latitudes during Middle Ordovician time.

  17. MAGNETIZED ACCRETION AND DEAD ZONES IN PROTOSTELLAR DISKS

    SciTech Connect (OSTI)

    Dzyurkevich, Natalia; Henning, Thomas; Turner, Neal J.; Kley, Wilhelm

    2013-03-10

    The edges of magnetically dead zones in protostellar disks have been proposed as locations where density bumps may arise, trapping planetesimals and helping form planets. Magneto-rotational turbulence in magnetically active zones provides both accretion of gas on the star and transport of mass to the dead zone. We investigate the location of the magnetically active regions in a protostellar disk around a solar-type star, varying the disk temperature, surface density profile, and dust-to-gas ratio. We also consider stellar masses between 0.4 and 2 M{sub Sun }, with corresponding adjustments in the disk mass and temperature. The dead zone's size and shape are found using the Elsasser number criterion with conductivities including the contributions from ions, electrons, and charged fractal dust aggregates. The charged species' abundances are found using the approach proposed by Okuzumi. The dead zone is in most cases defined by the ambipolar diffusion. In our maps, the dead zone takes a variety of shapes, including a fish tail pointing away from the star and islands located on and off the midplane. The corresponding accretion rates vary with radius, indicating locations where the surface density will increase over time, and others where it will decrease. We show that density bumps do not readily grow near the dead zone's outer edge, independently of the disk parameters and the dust properties. Instead, the accretion rate peaks at the radius where the gas-phase metals freeze out. This could lead to clearing a valley in the surface density, and to a trap for pebbles located just outside the metal freezeout line.

  18. Numerical Simulation of Fault Zone Guided Waves: Accuracy and 3-D Effects

    E-Print Network [OSTI]

    Ben-Zion, Yehuda

    seismic velocity. When sources are located in or close to these low-velocity zones, guided seismic head for seismic fault zone head and trapped waves. Fault zone head waves propagate along material discontinuity Pure and Applied Geophysics #12;traveling inside low velocity fault zone layers with dispersive

  19. The application of Fresnel zone plate based projection in optofluidic microscopy

    E-Print Network [OSTI]

    Yang, Changhuei

    The application of Fresnel zone plate based projection in optofluidic microscopy Jigang Wu the use of the Fresnel zone plate (FZP) based projection in OFM as a cost- effective and compact means objects with a Fresnel-zone-plate aperture," J. Opt. Soc. Am. 64, 134-137 (1974). 9. M. Young, "Zone

  20. Nanofocusing of soft X-ray laser pulses with Fresnel zone plate and its applications

    E-Print Network [OSTI]

    x Nanofocusing of soft X-ray laser pulses with Fresnel zone plate and its applications 699220056 #12;#12;i keep the faith #12;ii 200 0.16 (Fresnel zone plate) X 100.3 ................................................ 37 40 #12;1 1.1 NA X X (Fresnel zone plate) X (Fresnel zone plate) X #12;2 1

  1. Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and Jurgen Jahns

    E-Print Network [OSTI]

    Jahns, Jürgen

    Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and J¨urgen Jahns on the classical Fresnel zone plate (FZP) [1]. A simple FZP consists of alternating opaque and transparent rings Fresnel zone plate but to add bridges that hold the zones in place [4], see Fig. 1 right. We refer

  2. Dead Zones in LX-17 and PBX 9502

    SciTech Connect (OSTI)

    Souers, P C; Andreski, H G; Batteux, J; Bratton, B; Cabacungan, C; Cook, III, C F; Fletcher, S; Garza, R; Grimsley, D; Handly, J; Hernandez, A; McMaster, P; Molitoris, J D; Palmer, R; Prindiville, J; Rodriguez, J; Schneberk, D; Wong, B; Vitello, P

    2005-09-06

    Pin and X-ray corner-turning data have been taken on ambient LX-17 and PBX 9052, and the results are listed in tables as an aid to future modeling. The results have been modeled at 4 zones/mm with a reactive flow approach that varies the burn rate as a function of pressure. A single rate format is used to simulate failure and detonation in different pressure regimes. A pressure cut-off must also be reached to initiate the burn. Corner-turning and failure are modeled using an intermediate pressure rate region, and detonation occurs at high pressure. The TATB booster is also modeled using reactive flow, and X-ray tomography is used to partition the ram-pressed hemisphere into five different density regions. The model reasonably fits the bare corner-turning experiment but predicts a smaller dead zone with steel confinement, in contradiction with experiment. The same model also calculates the confined and unconfined cylinder detonation velocities and predicts the failure of the unconfined cylinder at 3.75 mm radius. The PBX 9502 shows a smaller dead zone than LX-17. An old experiment that showed a large apparent dead zone in Comp B was repeated with X-ray transmission and no dead zone was seen. This confirms the idea that a variable burn rate is the key to modeling. The model also produces initiation delays, which are shorter than those found in time-to-detonation.

  3. ReproducedfromVadoseZoneJournal.PublishedbySoilScienceSocietyofAmerica.Allcopyrightsreserved. A Vadose Zone Flow and Transport Model for Los Alamos Canyon,

    E-Print Network [OSTI]

    Lu, Zhiming

    VadoseZoneJournal.PublishedbySoilScienceSocietyofAmerica.Allcopyrightsreserved. A Vadose Zone Flow and Transport Model for Los Alamos Canyon, Los Alamos, New Mexico Bruce A. Robinson zone was gations as part of its Environmental Restoration and also modeled. Tritium, in the form of tritiated water, is Groundwater Protection Programs to assess the impact of an excellent tracer

  4. Magneto-Vortex Dynamo Model in Solar convection zone

    E-Print Network [OSTI]

    Sergey V. Ershkov

    2011-01-06

    Here is presented a new magneto-vortex dynamo model for modeling & predicting of a processes in Solar plasma convection zone. Solar convection zone is located above the level r > 0,6-0,7 R, where R is a Solar radius. A key feature of such a model is that equation of Solar plasma motion as well as equation of magnetic fields evolution - are reduced to Helmholtz's vortex equation, which is up-graded in according with alpha-effect (Coriolis force forms an additional vorticity field or magnetic field due to Sun's differential rotation). Such an additional vorticity or magnetic field are proved to be concentrated at the proper belt in Solar convection zone under the influence of Coriolis force (at the middle latitudes of the Sun in respect to equator). Besides, such an an additional vorticity & magnetic fields are to be the basic sources of well-known phenomena "Maunder's butterfly" diagram.

  5. Vadose Zone Transport Field Study: FY 2002 Status Report

    SciTech Connect (OSTI)

    Ward, Anderson L.; Gee, Glendon W.; Zhang, Z. F.; Keller, Jason M.

    2003-01-02

    This work reported here is part of the U. S. Department of Energy’s Science and Technology Initiative to develop improved conceptual models of flow and transport in the vadose zone, particularly for the Hanford Site, Washington. The National Academy of Sciences has identified significant knowledge gaps in conceptual model development as one reason for discovery of subsurface contamination in unexpected places. Inadequate conceptualizations limits, not only the understanding of long-term fate and transport, but also the selection and design of remediation technologies. Current conceptual models are limited partly because they do not account for the random heterogeneity that occurs under the extremes of very nonlinear flow behavior typical of the Hanford vadose zone. A major improvement in conceptual modeling of the Hanford vadose zone includes a better understanding and description of soil anisotropy, a property that appears to control much of the subsurface flow and transport in layered sediments at the Hanford Site.

  6. Isotope Geochemistry of Calcite Coatings and the Thermal History of the Unsaturated Zone at Yucca Mountain, Nevada

    SciTech Connect (OSTI)

    B.D. Marshall; J.F. Whelan

    2000-07-27

    Calcite and opal coatings found on fracture footwalls and lithophysal cavity bottoms in the volcanic section at Yucca Mountain (exposed in a tunnel) contain a record of gradual chemical and isotopic changes that have occurred in the unsaturated zone. The thin (less than 6 cm) coatings are composed primarily of calcite, opal, chalcedony, and quartz. Fluid inclusions in calcite that homogenize at greater than ambient temperatures provide impetus for geochronologic studies in order to determine the thermal history. In the welded Topopah Spring Tuff (12.7 Ma), U-Pb ages of opal and chalcedony layers provide evidence of a long history of deposition throughout the past 10 m.y. However, these ages can constrain the ages of associated calcite layers only in samples with an easily interpretable microstratigraphy. Strontium isotope ratios in calcite increase with microstratigraphic position from the base up to the outermost surface of the coatings. The strontium incorporated in these coatings records the systematic change in pore-water isotopic composition due to water-rock interaction primarily in the overlying nonwelded tuffs. A one-dimensional advection-reaction model simulates strontium isotope ratios measured in pore water extracted from core in three vertical boreholes adjacent to the tunnel. By calculating the strontium isotope compositions of the rocks at various past times, the model predicts a history of the strontium isotope ratios in the water that matches the record in the calcite and therefore provides approximate ages. Oxygen isotope ratios measured in calcite gradually increase with decreasing model strontium age. Assuming that the oxygen isotope ratio of the percolating water was relatively constant, this trend indicates a gradual cooling of the rocks over millions of years, in agreement with thermal modeling of magma beneath the 12-Ma Timber Mountain caldera just north of Yucca Mountain. This model predicts that temperatures significantly exceeding current geotherm values occurred prior to 6 Ma. We find no evidence for Quaternary or recent thermal perturbations to the cooling rocks.

  7. Coastal-zone biogeochemical dynamics under global warming

    SciTech Connect (OSTI)

    Mackenzie, F.T.; Ver, L.M.; Lerman, A.

    2000-03-01

    The coastal zone, consisting of the continental shelves to a depth of 200 meters, including bays, lagoons, estuaries, and near-shore banks, is an environment that is strongly affected by its biogeochemical and physical interactions with reservoirs in the adjacent domains of land, atmosphere, open ocean, and marine sediments. Because the coastal zone is smaller in volume and area coverage relative to the open ocean, it traditionally has been studied as an integral part of the global oceans. In this paper, the authors show by numerical modeling that it is important to consider the coastal zone as an entity separate from the open ocean in any assessment of future Earth-system response under human perturbation. Model analyses for the early part of the 21st century suggest that the coastal zone plays a significant modifying role in the biogeochemical dynamics of the carbon cycle and the nutrient cycles coupled to it. This role is manifested in changes in primary production, storage, and/or export of organic matter, its remineralization, and calcium carbonate precipitation--all of which determine the state of the coastal zone with respect to exchange of CO{sub 2} with the atmosphere. Under a scenario of future reduced or complete cessation of the thermohaline circulation (THC) of the global oceans, coastal waters become an important sink for atmospheric CO{sub 2}, as opposed to the conditions in the past and present, when coastal waters are believed to be a source of CO{sub 2} to the atmosphere. Profound changes in coastal-zone primary productivity underscore the important role of phosphorus as a limiting nutrient. In addition, calculations indicate that the saturation state of coastal waters with respect to carbonate minerals will decline by {approximately}15% by the year 2030. Any future slowdown in the THC of the oceans will increase slightly the rate of decline in saturation state.

  8. First evidence of a distal early Holocene ash layer in Eastern Mediterranean deep-sea sediments derived from the Anatolian volcanic province

    E-Print Network [OSTI]

    Gilli, Adrian

    First evidence of a distal early Holocene ash layer in Eastern Mediterranean deep-sea sediments-4445, USA c Hacettepe University, Department of Geological Engineering, 06532 Beytepe-Ankara, Turkey d volcanic eruptions and distributed by tropospheric and stratospheric wind regimes and water currents can

  9. OCEAN VOLCANO CAUGHT ON FILM Footage of a volcanic eruption nearly 1,200 metres under the sea was unveiled on 17 December at a meeting of

    E-Print Network [OSTI]

    Rosenberg, Noah

    OCEAN VOLCANO CAUGHT ON FILM Footage of a volcanic eruption nearly 1,200 metres under the sea. The high-definition film of the West Mata volcano in the western Pacific is one of the first times to raise up to US$300 million. Founded in 2005, Solyndra makes thin- film cylindrical modules for use

  10. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 44, NO. 11, NOVEMBER 2006 3235 Volcanic Ash Cloud Retrieval by Ground-Based

    E-Print Network [OSTI]

    Rose, William I.

    Ash Cloud Retrieval by Ground-Based Microwave Weather Radar Frank Silvio Marzano, Senior Member, IEEE-based microwave weather radar systems for volcanic ash cloud detection and quantitative retrieval is evaluated. The relationship between radar reflectivity factor, ash concentration, and fall rate is statistically derived

  11. Effects of Large Volcanic Eruptions on Global Summer Climate and East Asian Monsoon Changes during the Last Millennium: Analysis of MPI-ESM Simulations

    E-Print Network [OSTI]

    Phipps, Steven J.

    the scattering of incoming solar radiation by aerosol particles produces an increase of the fraction of solar for Meteorology. The model was driven by up-to-date reconstructions of external forcing, including natural forcing (solar and volcanic) and anthropogenic forcing (land-cover change and greenhouse gases). Cooling

  12. Sedimentation in theTonga forearc is dominated by the redeposition of volcaniclastic sediment from the arc volcanic front by mass flows

    E-Print Network [OSTI]

    Clift, Peter

    ABSTRACT Sedimentation in theTonga forearc is dominated by the redeposition of volcaniclastic sediment from the arc volcanic front by mass flows and turbidity currents onto the adjacent Tonga Platform, the shallow- est, flattest part of the forearc region.The greatest sediment thicknesses accumulate in debris

  13. Analytics For Distracted Driver Behavior Modeling in Dilemma Zone

    SciTech Connect (OSTI)

    Li, Jan-Mou [ORNL] [ORNL; Malikopoulos, Andreas [ORNL] [ORNL; Thakur, Gautam [ORNL] [ORNL; Vatsavai, Raju [ORNL] [ORNL

    2014-01-01

    In this paper, we present the results obtained and insights gained through the analysis of TRB contest data. We used exploratory analysis, regression, and clustering models for gaining insights into the driver behavior in a dilemma zone while driving under distraction. While simple exploratory analysis showed the distinguishing driver behavior patterns among different popu- lation groups in the dilemma zone, regression analysis showed statically signification relationships between groups of variables. In addition to analyzing the contest data, we have also looked into the possible impact of distracted driving on the fuel economy.

  14. FOAM: NOVEL DELIVERY TECHNOLOGY FOR REMEDIATION OF VADOSE ZONE ENVIRONMENTS

    SciTech Connect (OSTI)

    Jansik, Danielle P.; Wellman, Dawn M.; Mattigod, Shas V.; Zhong, Lirong; Wu, Yuxin; Foote, Martin; Zhang, Z. F.; Hubbard, Susan

    2011-07-05

    Deep vadose zone environments can be a primary source and pathway for contaminant migration to groundwater. These environments present unique characterization and remediation challenges that necessitate scrutiny and research. The thickness, depth, and intricacies of the deep vadose zone, combined with a lack of understanding of the key subsurface processes (e.g., biogeochemical and hydrologic) affecting contaminant migration, make it difficult to create validated conceptual and predictive models of subsurface flow dynamics and contaminant behavior across multiple scales. These factors also make it difficult to design and deploy sustainable remedial approaches and monitor long-term contaminant behavior after remedial actions. Functionally, the methods for addressing contamination must remove and/or reduce transport of contaminants. This problem is particularly challenging in the arid western United States where the vadose zone is hundreds of feet thick, rendering transitional excavation methods exceedingly costly and ineffective. Delivery of remedial amendments is one of the most challenging and critical aspects for all remedy-based approaches. The conventional approach for delivery is through injection of aqueous remedial solutions. However, heterogeneous deep vadose zone environments present hydrologic and geochemical challenges which limit the effectiveness. Because the flow of solution infiltration is dominantly controlled by gravity and suction, injected liquid preferentially percolates through highly permeable pathways, by-passing low-permeability zones which frequently contain the majority of contamination. Moreover, the wetting front can readily mobilize and enhance contaminant transport to the underlying aquifer prior to stabilization. Development of innovative, in-situ technologies may be the only way to meet remedial action objectives and long-term stewardship goals. Surfactants can be used to lower the liquid surface tension and create stabile foams, which readily penetrate low permeability zones. Although surfactant foams have been utilized for subsurface mobilization efforts in the oil and gas industry, so far, the concept of using foams as a delivery mechanism for transporting remedial amendments into deep vadose zone environments to stabilize metal and long-lived radionuclide contaminants has not been explored. Foam flow can be directed by pressure gradients, rather than being dominated by gravity; and, foam delivery mechanisms limit the volume of water (< 5% vol.) required for remedy delivery and emplacement, thus mitigating contaminant mobilization. We will present the results of a numerical modeling and integrated laboratory- / intermediate-scale investigation to simulate, develop, demonstrate, and monitor (i.e. advanced geophysical techniques and advanced predictive biomarkers) foam-based delivery of remedial amendments to remediate metals and radionuclides in vadose zone environments.

  15. Turkey Near-Zero Zone | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report1538-1950 Timeline ofTurkey Near-Zero Zone Turkey Near-Zero Zone

  16. Dynamic coupling of volcanic CO2 flow and wind at the HorseshoeLake tree kill, Mammoth Mountain, CA

    SciTech Connect (OSTI)

    Lewicki, J.L.; Hilley, G.E.; Tosha, T.; Aoyagi, R.; Yamamoto, K.; Benson, S.M.

    2006-11-20

    We investigate spatio-temporal relationships between soilCO2 flux (FCO2), meteorological variables, and topography over a ten-dayperiod (09/12/2006 to 09/21/2006) at the Horseshoe Lake tree kill,Mammoth Mountain, CA. Total CO2 discharge varied from 16 to 52 t d-1,suggesting a decline in CO2 emissions over decadal timescales. Weobserved systematic changes in FCO2 in space and time in association witha weather front with relatively high wind speeds from the west and lowatmospheric pressures. The largest FCO2 changes were observed inrelatively high elevation areas. The variations in FCO2 may be due todynamic coupling of wind-driven airflow through the subsurface and flowof source CO2 at depth. Our results highlight the influence of weatherfronts on volcanic gas flow in the near-surface environment and how thisinfluence can vary spatially within a study area.

  17. ASSESSMENT OF ELECTRICAL RESISTIVITY METHOD TO MAP GROUNDWATER SEEPAGE ZONES

    E-Print Network [OSTI]

    Toran, Laura

    rates. Study Site Mirror Lake (Figure 1) in the White Mountains of New Hampshire is a glacially formedASSESSMENT OF ELECTRICAL RESISTIVITY METHOD TO MAP GROUNDWATER SEEPAGE ZONES IN HETEROGENEOUS Geological Survey, Denver, CO Abstract We collected underwater electrical resistivity data along

  18. Zoning boundaries can make good neighbors in conservation

    E-Print Network [OSTI]

    Zoning boundaries can make good neighbors in conservation A panda with a GPS collar in the Wolong changes might be needed." A unique case study that does of one of the world's renowned nature reserves giant panda census, geographic data on locations of roads and human establishments, and new data

  19. FORMATION OF CIRCUMBINARY PLANETS IN A DEAD ZONE

    SciTech Connect (OSTI)

    Martin, Rebecca G.; Armitage, Philip J. [JILA, University of Colorado and NIST, UCB 440, Boulder, CO 80309 (United States); Alexander, Richard D. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom)

    2013-08-10

    Circumbinary planets have been observed at orbital radii where binary perturbations may have significant effects on the gas disk structure, on planetesimal velocity dispersion, and on the coupling between turbulence and planetesimals. Here, we note that the impact of all of these effects on planet formation is qualitatively altered if the circumbinary disk structure is layered, with a non-turbulent midplane layer (dead zone) and strongly turbulent surface layers. For close binaries, we find that the dead zone typically extends from a radius close to the inner disk edge up to a radius of around 10-20 AU from the center of mass of the binary. The peak in the surface density occurs within the dead zone, far from the inner disk edge, close to the snow line, and may act as a trap for aerodynamically coupled solids. We suggest that circumbinary planet formation may be easier near this preferential location than for disks around single stars. However, dead zones around wide binaries are less likely, and hence planet formation may be more difficult there.

  20. Effects of remediation amendments on vadose zone microorganisms

    SciTech Connect (OSTI)

    Miller, Hannah M.; Tilton, Fred A.

    2012-08-10

    Surfactant-based foam delivery technology has been studied to remediate Hanford 200 area deep vadose zone sediment. However, the surfactants and remediation amendments have an unknown effect on indigenous subsurface microorganisms. Microbial populations are important factors to consider in remediation efforts due to their potential to alter soil geochemistry. This project focuses on measuring microbial metabolic responses to remediation amendments in batch and column studies using Deep Vadose Zone Sediments. Initial studies of the microbes from Hanford 200 area deep vadose zone sediment showed surfactants sodium dodecyl sulfate (SDS) and cocamidopropyl betaine (CAPB) and remediation amendment calcium polysulfide (CPS) had no affect on microbial growth using BiologTM Ecoplates. To move towards a more realistic field analog, soil columns were packed with Hanford 200 Area sediment. Once microbial growth in the column was verified by observing growth of the effluent solution on tryptic soy agar plates, remedial surfactants were injected into the columns, and the resulting metabolic diversity was measured. Results suggest surfactant sodium dodecyl sulfate (SDS) stimulates microbial growth. The soil columns were also visualized using X-ray microtomography to inspect soil packing and possibly probe for evidence of biofilms. Overall, BiologTM Ecoplates provide a rapid assay to predict effects of remediation amendments on Hanford 200 area deep vadose zone microorganisms.

  1. Archived Reference Climate Zone: 3C San Francisco, California

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  2. Archived Reference Climate Zone: 3C San Francisco, California

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  3. Mantle transition zone topography and structure beneath the Yellowstone hotspot

    E-Print Network [OSTI]

    Dueker, Ken

    Mantle transition zone topography and structure beneath the Yellowstone hotspot David Fee and Ken ± 1.6 km, with 36­40 km of peak to peak topography. This topography is spatially uncorrelated, providing no evidence for a lower mantle plume currently beneath the hotspot. The topography suggests

  4. GIS and the Coastal Zone: An Annotated Bibliography

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    of Geographical Information Systems (GIS) tools and concepts to the coastal zone is one of the great challenges paradoxically, geographical information systems (GIS) have not yet enjoyed the success at the coast for Geographic Information and Analysis Report 93-9 #12;Preface and Acknowledgments To all who sent me references

  5. Archived Reference Climate Zone: 4A Baltimore, Maryland

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  6. Archived Reference Climate Zone: 4A Baltimore, Maryland

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  7. Critical Zones in Desert Fog: Aids to Multiscale Navigation

    E-Print Network [OSTI]

    Furnas, George W.

    Critical Zones in Desert Fog: Aids to Multiscale Navigation Susanne Jul Computer Science +1 734-763-0076 furnas@umich.edu ABSTRACT In this paper, we introduce the problem of "desert fog desert fog in multiscale electronic worlds. Prototypes of these aids have been implemented

  8. Zone Determinant Expansions for Nuclear Lattice Simulations Dean J. Lee

    E-Print Network [OSTI]

    Zone Determinant Expansions for Nuclear Lattice Simulations Dean J. Lee #3; Department of Physics simulations of #12;nite temperature nuclear matter on the lattice. We introduce a new approximation to nucleon parameter. PACS numbers: 21.65.+f, 21.30.-x, 02.70.-c Keywords: nuclear, matter, simulation, lattice

  9. Zone determinant expansions for nuclear lattice simulations Dean J. Lee*

    E-Print Network [OSTI]

    Ipsen, Ilse

    Zone determinant expansions for nuclear lattice simulations Dean J. Lee* Department of Physics simulations of finite temperature nuclear matter on the lattice. We introduce a new approximation to nucleon quantum simulations of nuclear matter on the lattice. In particular, we address the problem of calculating

  10. NOAAINMFS Developments NOAA Raises Coastal Zone Management Status

    E-Print Network [OSTI]

    attention on the coastal zone for deepwater ports, floating nuclear power plants, and offshore oil and gas to eight vessels supplying three processing plants, with a total output of around 1.2 million pounds of the deep-sea red crab, and declining consumer buying power, make the fu- ture for the red crab market

  11. Archived Reference Climate Zone: 6A Minneapolis, Minnesota

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  12. Archived Reference Climate Zone: 6A Minneapolis, Minnesota

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  13. Vertical Variability in Saturated Zone Hydrochemistry Near Yucca Mountain, Nevada

    SciTech Connect (OSTI)

    G. Patterson; P. Striffler

    2007-02-17

    The differences in the saturated zone hydrochemistry with depth at borehole NC-EWDP-22PC reflect the addition of recharge along Fortymile Wash. The differences in water chemistry with depth at borehole NC-EWDP-19PB appear to indicate that other processes are involved. Water from the lower part of NC-EWDP-19PB possesses chemical characteristics that clearly indicate that it has undergone cation exchange that resulted in the removal of calcium and magnesium and the addition of sodium. This water is very similar to water from the Western Yucca Mountain facies that has previously been thought to flow west of NC-EWDP-19PB. Water from the lower zone in NC-EWDP-19PB also could represent water from the Eastern Yucca Mountain facies that has moved through clay-bearing or zeolitized aquifer material resulting in the altered chemistry. Water chemistry from the upper part of the saturated zone at NC-EWDP-19PB, both zones at NC-EWDP-22PC, and wells in the Fortymile Wash facies appears to be the result of recharge through the alluvium south of Yucca Mountain and within the Fortymile Wash channel.

  14. Identifying fracture zones in the Austin Chalk using seismic attributes 

    E-Print Network [OSTI]

    Bafia, Daniel Joseph

    1998-01-01

    . After studying various attributes, it was determined that there is no direct evidence of these fracture zones, but areas that are more prone to fracturing can be deduced from lithology. "Clean chalk, or areas that lack shale interbeds, is more brittle...

  15. www.VadoseZoneJournal.org Simula on of Radionuclide

    E-Print Network [OSTI]

    Lu, Zhiming

    by the USDOE as a potential site for the nation's first high-level radioactive waste repository is largely duewww.VadoseZoneJournal.org Simula on of Radionuclide Transport through Unsaturated, Fractured Rock the transport of radio- nuclides through the unsaturated, fractured rock below the proposed repository

  16. SINGLE-ZONE STACK-DOMINATED INFILTRATION MODELING Max Sherman

    E-Print Network [OSTI]

    dominates and total ventilation can be calculated by treating other effects (i.e., wind and small fansSINGLE-ZONE STACK-DOMINATED INFILTRATION MODELING Max Sherman Energy Performance of Buildings Group Energy, Office of Buildings and Community Systems Building Systems Division of the U.S. Department

  17. Archived Reference Climate Zone: 2B Phoenix, Arizona

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  18. Archived Reference Climate Zone: 2B Phoenix, Arizona

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  19. Analytical extraction of the recombination zone location in organic

    E-Print Network [OSTI]

    Tessler, Nir

    Analytical extraction of the recombination zone location in organic light-emitting diodes from emission patterns produced by organic LEDs (OLEDs). The method is based on derivation of the closed-form expressions for OLED-radiated power developed in previous work and formulation of the analytical relations

  20. CANDIDATE PLANETS IN THE HABITABLE ZONES OF KEPLER STARS

    SciTech Connect (OSTI)

    Gaidos, Eric

    2013-06-20

    A key goal of the Kepler mission is the discovery of Earth-size transiting planets in ''habitable zones'' where stellar irradiance maintains a temperate climate on an Earth-like planet. Robust estimates of planet radius and irradiance require accurate stellar parameters, but most Kepler systems are faint, making spectroscopy difficult and prioritization of targets desirable. The parameters of 2035 host stars were estimated by Bayesian analysis and the probabilities p{sub HZ} that 2738 candidate or confirmed planets orbit in the habitable zone were calculated. Dartmouth Stellar Evolution Program models were compared to photometry from the Kepler Input Catalog, priors for stellar mass, age, metallicity and distance, and planet transit duration. The analysis yielded probability density functions for calculating confidence intervals of planet radius and stellar irradiance, as well as p{sub HZ}. Sixty-two planets have p{sub HZ} > 0.5 and a most probable stellar irradiance within habitable zone limits. Fourteen of these have radii less than twice the Earth; the objects most resembling Earth in terms of radius and irradiance are KOIs 2626.01 and 3010.01, which orbit late K/M-type dwarf stars. The fraction of Kepler dwarf stars with Earth-size planets in the habitable zone ({eta}{sub Circled-Plus }) is 0.46, with a 95% confidence interval of 0.31-0.64. Parallaxes from the Gaia mission will reduce uncertainties by more than a factor of five and permit definitive assignments of transiting planets to the habitable zones of Kepler stars.

  1. The rotary zone thermal cycler: A low-power system enabling automated...

    Office of Scientific and Technical Information (OSTI)

    DOE PAGES Search Results Accepted Manuscript: The rotary zone thermal cycler: A low-power system enabling automated rapid PCR Title: The rotary zone thermal cycler: A low-power...

  2. Deep Vadose Zone–Applied Field Research Initiative Fiscal Year 2012 Annual Report

    SciTech Connect (OSTI)

    Wellman, Dawn M.; Truex, Michael J.; Johnson, Timothy C.; Bunn, Amoret L.; Golovich, Elizabeth C.

    2013-03-14

    This annual report describes the background of the Deep Vadose Zone-Applied Field Research Initiative, and some of the programmatic approaches and transformational technologies in groundwater and deep vadose zone remediation developed during fiscal year 2012.

  3. Evaluation of Advanced Safety Perimeter Systems for Kansas Temporary Work Zones

    E-Print Network [OSTI]

    Novosel, Christopher

    2014-12-31

    Every year approximately 120 workers die in work zones, with approximately 60 percent of them as a result of intrusion accidents. Temporary work zones have a critical safety gap due to the expense and time needed to deploy ...

  4. Zoning and occupancy-moderation for residential space-conditioning under demand-driven electricity pricing

    E-Print Network [OSTI]

    Leow, Woei Ling, 1977-

    2012-01-01

    Occupancy-moderated zonal space-conditioning (OZS) refers to the partitioning of a residence into different zones and independently operating the space-conditioning equipment of each zone based on its occupancy. OZS remains ...

  5. Collateral damage: Evolution with displacement of fracture distribution and secondary fault strands in fault damage zones

    E-Print Network [OSTI]

    Savage, Heather M.; Brodsky, Emily E.

    2011-01-01

    E. McCallum (1999), Reservoir damage around faults: OutcropSkar (2005), Controls on damage zone asymmetry of a normal2007), The evolution of the damage zone with fault growth in

  6. ENERGY IN THE PACIFIC COASTAL ZONE DOES D.O.E. HAVE A ROLE?

    E-Print Network [OSTI]

    Ritschard, Ronald L.

    2013-01-01

    LBL-11154 UC- 11 ENERGY IN THE PACIFIC COASTAL ZONE DOESD.O.E. HAVE A ROLE? Ronald L. Ritschard, Kendall F. Haven,Washington. • Conclusions • DOE S Role in Coastal Zone

  7. Water Flow Through Geotextiles Used to Support the Root Zone of Turfgrass on Sports Fields 

    E-Print Network [OSTI]

    Rose-Harvey, Keisha M.

    2010-01-14

    A sports field construction method that uses a geotextile to support the root zone atop a synthetic drainage structure is an alternative to the common design that uses gravel drainage material to support the root zone. A study was conducted...

  8. Analyzing Drivers' Responses to Portable Changeable Message Signs in Rural Highway Work Zones

    E-Print Network [OSTI]

    Li, Yue

    2011-04-21

    The number of work zones has been increasing in the highway system of the United States because of rising needs in highway construction and maintenance. Highway work zones disrupt normal traffic flow and create safety ...

  9. Thermal, hydrous, and mechanical states of the mantle transition zone beneath southern Africa

    E-Print Network [OSTI]

    Shen, Yang

    Thermal, hydrous, and mechanical states of the mantle transition zone beneath southern Africa John cratons in southern Africa; consequently, the mantle transition zone is 20 km thicker than beneath post: lithosphere; upper mantle; transition zone; cratoni convection; Southern Africa 1. Introduction The upper

  10. Defining the Fresnel zone for broadband radiation Jeremy Pearce and Daniel Mittleman*

    E-Print Network [OSTI]

    Mittleman, Daniel

    Defining the Fresnel zone for broadband radiation Jeremy Pearce and Daniel Mittleman* Department of the Fresnel zone is central to many areas of imaging. In tomographic imaging, the transverse spatial resolution can be limited by the size of the first Fresnel zone, usually defined only for monochromatic

  11. Volume Fresnel zone plates fabricated by femtosecond laser direct writing Pornsak Srisungsitthisunti

    E-Print Network [OSTI]

    Xu, Xianfan

    Volume Fresnel zone plates fabricated by femtosecond laser direct writing Pornsak October 2006; accepted 29 November 2006; published online 2 January 2007 In this letter, volume Fresnel. A volume zone plate consists of a number of layers of Fresnel zone plates designed to focus light together

  12. Accurate and fast simulation of Fresnel zone plates and multi-level diffractive lenses

    E-Print Network [OSTI]

    Jahns, Jürgen

    Accurate and fast simulation of Fresnel zone plates and multi-level diffractive lenses Qing Cao, such as various Fresnel zone plates [1, 2] and muti-level diffractive lenses [3], can be used for focusing and fast simulation of various Fresnel zone plates and multi-level diffractive lenses. As two tests, we

  13. FRESNEL-ZONE MEASUREMENT AND ANALYSIS OF A DUAL-POLARIZED METEOROLOGICAL RADAR ANTENNA

    E-Print Network [OSTI]

    Collings, Iain B.

    FRESNEL-ZONE MEASUREMENT AND ANALYSIS OF A DUAL- POLARIZED METEOROLOGICAL RADAR ANTENNA D.B. Hayman Fresnel-zone holographic technique was used to obtain the radiation pattern for the upgraded antenna in the measurement of this antenna and the analysis of the results. Keywords: Antenna measurements, Fresnel zone

  14. Modified Fresnel zone plates with sharp Gaussian focal spots Qing Cao and Jurgen Jahns

    E-Print Network [OSTI]

    Jahns, Jürgen

    Modified Fresnel zone plates with sharp Gaussian focal spots Qing Cao and J¨urgen Jahns Traditional Fresnel zone plates (TFZPs) and photon sieves [1, 2, 3] can be used for the focusing and imaging of soft x.e. a modified Fresnel zone plate, MFZP) can realized the same functions as a photon sieve. In particular, we

  15. Scanning microscopy using a short-focal-length Fresnel zone plate

    E-Print Network [OSTI]

    Scanning microscopy using a short-focal-length Fresnel zone plate Ethan Schonbrun,* Winnie N. Ye demonstrate a form of scanning microscopy using a short-focal-length Fresnel zone plate and a low-NA relay. In this scheme, parallel scanning microscopy using a Fresnel zone-plate array would require only a single spatial

  16. Modified composite Fresnel zone plates with high numerical apertures Qing Cao and Jurgen Jahns

    E-Print Network [OSTI]

    Jahns, Jürgen

    Modified composite Fresnel zone plates with high numerical apertures Qing Cao and J¨urgen Jahns Traditional Fresnel zone plates (TFZPs) can be used for the focusing and imaging of soft x-rays and EUV proposed the modified Fresnel zone plates that can produce sharp Gaussian focal spots (we call them

  17. PARAMETERS OF THE SOLAR CONVECTION ZONE IN EVOLUTIONARY AND SEISMIC MODELS

    E-Print Network [OSTI]

    PARAMETERS OF THE SOLAR CONVECTION ZONE IN EVOLUTIONARY AND SEISMIC MODELS VLADIMIR A. BATURIN defines (T \\Gammaae) profile of the adiabatic convection zone, but together with surface conditions of the helium ionization zone (with type of EOS as labels). Filled square with a vertical error bar

  18. A conceptual model for the origin of fault damage zone structures in high-porosity sandstone

    E-Print Network [OSTI]

    Cowie, Patience

    A conceptual model for the origin of fault damage zone structures in high-porosity sandstone Zoe K-porosity sandstones. Damage zone deformation has been particularly well constrained for two 4-km-long normal faults formed in the Navajo Sandstone of central Utah, USA. For these faults the width of the damage zone

  19. Extreme-UV lithography vacuum chamber zone seal

    DOE Patents [OSTI]

    Haney, Steven J. (Tracy, CA); Herron, Donald Joe (Manteca, CA); Klebanoff, Leonard E. (San Ramon, CA); Replogle, William C. (Livermore, CA)

    2001-01-01

    Control of particle contamination on the reticle and carbon contamination of optical surfaces in photolithography systems can be achieved by the establishment of multiple pressure zones in the photolithography systems. The different zones will enclose the reticle, projection optics, wafer, and other components of system. The system includes a vacuum apparatus that includes: a housing defining a vacuum chamber; one or more metrology trays situated within the vacuum chamber each of which is supported by at least one support member, wherein the tray separates the vacuum chamber into a various compartments that are maintained at different pressures; and conductance seal devices for adjoining the perimeter of each tray to an inner surface of the housing wherein the tray is decoupled from vibrations emanating from the inner surface of the housing.

  20. Extreme-UV lithography vacuum chamber zone seal

    DOE Patents [OSTI]

    Haney, Steven J. (Tracy, CA); Herron, Donald Joe (Manteca, CA); Klebanoff, Leonard E. (San Ramon, CA); Replogle, William C. (Livermore, CA)

    2003-04-15

    Control of particle contamination on the reticle and carbon contamination of optical surfaces in photolithography systems can be achieved by the establishment of multiple pressure zones in the photolithography systems. The different zones will enclose the reticle, projection optics, wafer, and other components of system. The system includes a vacuum apparatus that includes: a housing defining a vacuum chamber; one or more metrology trays situated within the vacuum chamber each of which is supported by at least one support member, wherein the tray separates the vacuum chamber into a various compartments that are maintained at different pressures; and conductance seal devices for adjoining the perimeter of each tray to an inner surface of the housing wherein the tray is decoupled from vibrations emanating from the inner surface of the housing.

  1. Extreme-UV lithography vacuum chamber zone seal

    DOE Patents [OSTI]

    Haney, Steven J. (Tracy, CA); Herron, Donald Joe (Manteca, CA); Klebanoff, Leonard E. (San Ramon, CA); Replogle, William C. (Livermore, CA)

    2003-04-08

    Control of particle contamination on the reticle and carbon contamination of optical surfaces in photolithography systems can be achieved by the establishment of multiple pressure zones in the photolithography systems. The different zones will enclose the reticle, projection optics, wafer, and other components of system. The system includes a vacuum apparatus that includes: a housing defining a vacuum chamber; one or more metrology trays situated within the vacuum chamber each of which is supported by at least one support member, wherein the tray separates the vacuum chamber into a various compartments that are maintained at different pressures; and conductance seal devices for adjoining the perimeter of each tray to an inner surface of the housing wherein the tray is decoupled from vibrations emanating from the inner surface of the housing.

  2. Improved hydrocracker temperature control: Mobil quench zone technology

    SciTech Connect (OSTI)

    Sarli, M.S.; McGovern, S.J. (Mobil Research and Development, Paulsboro, NJ (United States)); Lewis, D.W.; Snyder, P.W. (Mobil Research and Development, Princeton, NJ (United States))

    1993-01-01

    Hydrocracking is a well established process in the oil refining industry. There are over 2.7 million barrels of installed capacity world-wide. The hydrocracking process comprises several families of highly exothermic reactions and the total adiabatic temperature rise can easily exceed 200 F. Reactor temperature control is therefore very important. Hydrocracking reactors are typically constructed with multiple catalyst beds in series. Cold recycle gas is usually injected between the catalyst beds to quench the reactions, thereby controlling overall temperature rise. The design of this quench zone is the key to good reactor temperature control, particularly when processing poorer quality, i.e., higher heat release, feeds. Mobil Research and Development Corporation (MRDC) has developed a robust and very effective quench zone technology (QZT) package, which is now being licensed to the industry for hydrocracking applications.

  3. Metagenome of a Versatile Chemolithoautotroph from Expanding Oceanic Dead Zones

    SciTech Connect (OSTI)

    Walsh, David A.; Zaikova, Elena; Howes, Charles L.; Song, Young; Wright, Jody; Tringe, Susannah G.; Tortell, Philippe D.; Hallam, Steven J.

    2009-07-15

    Oxygen minimum zones (OMZs), also known as oceanic"dead zones", are widespread oceanographic features currently expanding due to global warming and coastal eutrophication. Although inhospitable to metazoan life, OMZs support a thriving but cryptic microbiota whose combined metabolic activity is intimately connected to nutrient and trace gas cycling within the global ocean. Here we report time-resolved metagenomic analyses of a ubiquitous and abundant but uncultivated OMZ microbe (SUP05) closely related to chemoautotrophic gill symbionts of deep-sea clams and mussels. The SUP05 metagenome harbors a versatile repertoire of genes mediating autotrophic carbon assimilation, sulfur-oxidation and nitrate respiration responsive to a wide range of water column redox states. Thus, SUP05 plays integral roles in shaping nutrient and energy flow within oxygen-deficient oceanic waters via carbon sequestration, sulfide detoxification and biological nitrogen loss with important implications for marine productivity and atmospheric greenhouse control.

  4. Enrichment Zoning Options for the Small Nuclear Rocket Engine (SNRE)

    SciTech Connect (OSTI)

    Bruce G. Schnitzler; Stanley K. Borowski

    2010-07-01

    Advancement of U.S. scientific, security, and economic interests through a robust space exploration program requires high performance propulsion systems to support a variety of robotic and crewed missions beyond low Earth orbit. In NASA’s recent Mars Design Reference Architecture (DRA) 5.0 study (NASA-SP-2009-566, July 2009), nuclear thermal propulsion (NTP) was again selected over chemical propulsion as the preferred in-space transportation system option because of its high thrust and high specific impulse (-900 s) capability, increased tolerance to payload mass growth and architecture changes, and lower total initial mass in low Earth orbit. An extensive nuclear thermal rocket technology development effort was conducted from 1955-1973 under the Rover/NERVA Program. The Small Nuclear Rocket Engine (SNRE) was the last engine design studied by the Los Alamos National Laboratory during the program. At the time, this engine was a state-of-the-art design incorporating lessons learned from the very successful technology development program. Past activities at the NASA Glenn Research Center have included development of highly detailed MCNP Monte Carlo transport models of the SNRE and other small engine designs. Preliminary core configurations typically employ fuel elements with fixed fuel composition and fissile material enrichment. Uniform fuel loadings result in undesirable radial power and temperature profiles in the engines. Engine performance can be improved by some combination of propellant flow control at the fuel element level and by varying the fuel composition. Enrichment zoning at the fuel element level with lower enrichments in the higher power elements at the core center and on the core periphery is particularly effective. Power flattening by enrichment zoning typically results in more uniform propellant exit temperatures and improved engine performance. For the SNRE, element enrichment zoning provided very flat radial power profiles with 551 of the 564 fuel elements within 1% of the average element power. Results for this and alternate enrichment zoning options for the SNRE are compared.

  5. Zone heated inlet ignited diesel particulate filter regeneration

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

    2012-06-26

    An exhaust system that processes exhaust generated by an engine is provided. The system includes: a particulate filter (PF) that is disposed downstream of the engine and that filters particulates from the exhaust; and a grid that includes electrically resistive material that is segmented by non-conductive material into a plurality of zones and wherein the grid is applied to an exterior upstream surface of the PF.

  6. Eastern Energy Zones Mapping Tool | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based|DepartmentStatementofApril 25,EV Everywhere| DepartmentZones 1 and 2

  7. Coiled tubing isolates zones, fractures wells with single trip service

    SciTech Connect (OSTI)

    Silverman, S.A.

    1999-04-01

    A system has been devised that combines high pressure coiled tubing (CT) and a selective isolation technique to frac multiple zones in a single operation. Multiple zones in one well can be individually isolated, fractured and flowed back simultaneously which results in reduced exposure to kill fluids and therefore higher retained conductivity for newly created fractures. The technique has been named CoilFRAC{trademark} by Dowell. The key benefits to the entire operation are reduced rig and operations time compared to conventional fracturing processes. Time savings, increased production, and environmental benefits are the economic drivers that result in rapid return on investment for production operators. The single trip concept for perforating and stimulation crews also brings additional benefits over multiple mobilizations. Wells which previously had only major zones perforated and stimulated and which are currently depleted can be revived economically using this system, giving the well a second life. The paper describes the equipment and its safety and contingency features, optimized shallow gas production in Alberta, and results from a South Texas oil well fracturing.

  8. 1999 vadose zone monitoring plan and guidance for subsequent years

    SciTech Connect (OSTI)

    Horton, D.G.; Reidel, S.P.; Last, G.V.

    1998-08-01

    The US Department of Energy`s Hanford Site has the most diverse and largest amounts of radioactive waste in the US. The majority of the liquid waste was disposed to the soil column where much of it remains today. This document provides the rationale and general framework for vadose zone monitoring at cribs, ditches, trenches and other disposal facilities to detect new sources of contamination and track the movement of existing contamination in the vadose zone for the protection of groundwater. The document provides guidance for subsequent site-specific vadose zone monitoring plans and includes a brief description of past vadose monitoring activities (Chapter 3); the results of the Data Quality Objective process used for this plan (Chapter 4); a prioritization of liquid waste disposal sites for vadose monitoring (Chapter 5 and Appendix B); a general Monitoring and Analysis Plan (Chapter 6); a general Quality Assurance Project Plan (Appendix A), and a description of vadose monitoring activities planned for FY 1999 (Appendix C).

  9. Sulfur Emissions from Volcanic A c t i v i t y i n 1985 and 1990 Carmen M. Benkovitz and M. A l t a f Mubaraki

    E-Print Network [OSTI]

    APPENDIX C Sulfur Emissions from Volcanic A c t i v i t y i n 1985 and 1990 Carmen M. Benkovitz). Global estimates o f anthropogenic emissions o f sulfur f o r 1985 are approximately 65 Tg S y-l (Benkovi Anthropogenic Sulfur Emissions f o r 1985 and 1990 i n t h i s report). Sulfur from biogenic sources i s emitted

  10. The Influence of Proposed Repository Thermal Load on Multiphase Flow and Heat Transfer in the Unsaturated Zone of Yucca Mountain

    E-Print Network [OSTI]

    Wu, Y.-S.; Mukhopadhyay, Sumit; Zhang, Keni; Bodvarsson, G.S.

    2006-01-01

    Studies Using the Yucca Mountain Unsaturated Zone Model,Unsaturated Zone at Yucca Mountain, Nevada, to Thermal LoadLarge Block Test at Yucca Mountain, Nevada, Water Resources

  11. Modeling thermal-hydrological response of the unsaturated zone at Yucca Mountain, Nevada, to thermal load at a potential repository

    E-Print Network [OSTI]

    Haukwa, C.B.; Wu, Yu-Shu; Bodvarsson, G.S.

    2002-01-01

    Repository at Yucca Mountain. In Materials Research Societystudies using the Yucca Mountain unsaturated zone model.Unsaturated Zone, Yucca Mountain, Nevada. Water Resources

  12. Reykjanes Field Trip: Tectonic Magmatic Interaction at an oblique rift zone Amy Clifton, Nordic Volcanological Institute

    E-Print Network [OSTI]

    Clifton, Amy Elizabeth

    with their own magma supply, high temperature geothermal system, and clusters of closely spaced fractures components of both shear (vertical offset parallel to the fracture plane) and extension (opening boundary (dashed line), and geothermal centers (blue stars). Four volcanic systems shown in grey shading

  13. Modeling non-steady state radioisotope transport in the vadose zone--A case study using uranium isotopes at Pena Blanca, Mexico

    E-Print Network [OSTI]

    Ku, T. L.

    2010-01-01

    map of the Nopal I uranium deposit, indicating the locationflow at the Nopal I uranium deposit, Sierra Peña Blanca,Chihuahua, Mexico. In: Uranium Deposits in Volcanic Rocks,

  14. Propagation direction reversal of ionization zones in the transition between high and low current magnetron sputtering

    SciTech Connect (OSTI)

    School of Materials Science and Engineering, State Key Lab for Materials Processing and Die & Mold Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Department of Physics, University of California Berkeley, Berkeley, California 94720, USA; Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA; Yang, Yuchen; Liu, Jason; Liu, Lin; Anders, André

    2014-12-11

    Past research has revealed the propagation of dense, asymmetric ionization zones in both high and low current magnetron discharges. Here we report about the direction reversal of ionization zone propagation as observed with fast cameras. At high currents, zones move in the E B direction with velocities of 103 to 104 m/s. However at lower currents, ionization zones are observed to move in the opposite, the -E B direction, with velocities ~;; 103 m/s. It is proposed that the direction reversal is associated with the local balance of ionization and supply of neutrals in the ionization zone.

  15. Center for Volcanic and Tectonic Studies, Department of Geoscience annual report, October 1, 1989--September 30, 1990

    SciTech Connect (OSTI)

    Smith, E.I. [Nevada Univ., Las Vegas, NV (United States). Center for Volcanic and Tectonic Studies

    1990-11-01

    This report summarizes our activities during the period October 1, 1989 to September 30, 1990. Our goal was to develop an understanding of late-Miocene and Pliocene volcanism in the Great Basin by studying Pliocene volcanoes in the vicinity of the proposed high-level nuclear waste repository at Yucca Mountain, Nevada. Field studies during this period concentrated on the Quaternary volcanoes in Crater Flat, Yucca Mountain, Fortification Hill, at Buckboard Mesa and Sleeping Butte, and in the Reveille Range. Also, a study was initiated on structurally disrupted basaltic rocks in the northern White Hills of Mohave County, Arizona. As well as progress reports of our work in Crater Flat, Fortification Hill and the Reveille Range, this paper also includes a summary of model that relates changing styles of Tertiary extension to changing magmatic compositions, and a summary of work being done in the White Hills, Arizona. In the Appendix, we include copies of published papers not previously incorporated in our monthly reports.

  16. Method for continuously recovering metals using a dual zone chemical reactor

    DOE Patents [OSTI]

    Bronson, M.C.

    1995-02-14

    A dual zone chemical reactor continuously processes metal-containing materials while regenerating and circulating a liquid carrier. The starting materials are fed into a first reaction zone of a vessel containing a molten salt carrier. The starting materials react to form a metal product and a by-product that dissolves in the molten salt that flows to a second reaction zone in the reaction vessel. The second reaction zone is partitioned from, but in fluid communication with, the first reaction zone. The liquid carrier continuously circulates along a pathway between the first reaction zone and the second reaction zone. A reactive gas is introduced into the second reaction zone to react with the reaction by-product to generate the molten salt. The metal product, the gaseous waste products, and the excess liquid carrier are removed without interrupting the operation of the reactor. The design of the dual zone reactor can be adapted to combine a plurality of liquid carrier regeneration zones in a multiple dual zone chemical reactor for production scale processing. 6 figs.

  17. Vapor-like liquid coexistence densities affect the extension of the critical point's influence zone

    E-Print Network [OSTI]

    Rivera, Jose Luis; Guerra-Gonzalez, Roberto

    2015-01-01

    The critical point affects the coexistence behavior of the vapor-liquid equilibrium densities. The length of the critical influence zone is under debate because for some properties, like shear viscosity, the extension is only a few degrees, while for others, such as the density order parameter, the critical influence zone range covers up to hundreds of degrees below the critical temperature. Here we show that for a simple molecular potential of ethane, the critical influence zone covers a wide zone of tens of degrees (below the critical temperature) down to a transition temperature, at which the apparent critical influence zone vanishes and the transition temperature can be predicted through a pressure analysis of the coexisting bulk liquid phase. The liquid phases within the apparent critical influence zone show low densities, making them behave internally like their corresponding vapor phases. Therefore, the experimentally observed wide extension of the critical influence zone is due to a vapor-like effect ...

  18. Wireless zoned particulate matter filter regeneration control system

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Kirby, Kevin W [Calabasas Hills, CA; Phelps, Amanda [Malibu, CA

    2011-10-04

    An assembly includes a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas, a downstream end and multiple zones. An absorbing layer absorbs microwave energy in one of N frequency ranges and is arranged with the upstream end. N is an integer. A frequency selective filter has M frequency selective segments and receives microwave energy in the N frequency ranges. M is an integer. One of the M frequency selective segments permits passage of the microwave energy in one of the N frequency ranges and does not permit passage of microwave energy in the other of the N frequency ranges.

  19. Denazification in the American Zone of Germany, 1945-1948 

    E-Print Network [OSTI]

    McHenry, Richard Lee

    1982-01-01

    , op. cit. , 960. 34 23. 6 9, ~B*t 1, 9. ' t. , 199. 24. Ladislas Farago, The Last Da s of Patton (New York, 1981), 73-75. 25. Ibid. , 75-77. 26. Ibid . , 143-144. 27. Alfred D. Chandler and Louis Galambos (eds. ) The Pa ers of Dwi ht David...DENAEIFICATION IN THE AMERICAN 'ZONE OF GERMANY; 1945-1948 A Thesis RICHARD LEE MCHENRY, JR, Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF ARTS December 1982...

  20. Future Energy Zone Private Ltd FEZ | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:ofEnia SpAFlexStock Co Ltd Jump to:FusermannZone Private Ltd

  1. Category:ASHRAE Climate Zones | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank,Cammack Village,8199089°, -86.3376761°AnadromousASHRAE Climate Zones Jump

  2. Contaminants in Vadose Zone Environments | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p aDepartmentEnergy comparingDeep Vadose Zone - Applied Field

  3. Drone Zone at Los Alamos ScienceFest

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalentLaboratory |Sectorfor $1.14 Per Gallon Driving forDrone Zone at

  4. Development of Characterization Technology for Fault Zone Hydrology

    SciTech Connect (OSTI)

    Karasaki, Kenzi; Onishi, Tiemi; Gasperikova, Erika; Goto, Junichi; Tsuchi, Hiroyuki; Miwa, Tadashi; Ueta, Keiichi; Kiho, Kenzo; MIyakawa, Kimio

    2010-08-06

    Several deep trenches were cut, and a number of geophysical surveys were conducted across the Wildcat Fault in the hills east of Berkeley, California. The Wildcat Fault is believed to be a strike-slip fault and a member of the Hayward Fault System, with over 10 km of displacement. So far, three boreholes of ~;; 150m deep have been core-drilled and borehole geophysical logs were conducted. The rocks are extensively sheared and fractured; gouges were observed at several depths and a thick cataclasitic zone was also observed. While confirming some earlier, published conclusions from shallow observations about Wildcat, some unexpected findings were encountered. Preliminary analysis indicates that Wildcat near the field site consists of multiple faults. The hydraulic test data suggest the dual properties of the hydrologic structure of the fault zone. A fourth borehole is planned to penetrate the main fault believed to lie in-between the holes. The main philosophy behind our approach for the hydrologic characterization of such a complex fractured system is to let the system take its own average and monitor a long term behavior instead of collecting a multitude of data at small length and time scales, or at a discrete fracture scale and to ?up-scale,? which is extremely tenuous.

  5. Yucca Mountain Area Saturated Zone Dissolved Organic Carbon Isotopic Data

    SciTech Connect (OSTI)

    Thomas, James; Decker, David; Patterson, Gary; Peterman, Zell; Mihevc, Todd; Larsen, Jessica; Hershey, Ronald

    2007-06-25

    Groundwater samples in the Yucca Mountain area were collected for chemical and isotopic analyses and measurements of water temperature, pH, specific conductivity, and alkalinity were obtained at the well or spring at the time of sampling. For this project, groundwater samples were analyzed for major-ion chemistry, deuterium, oxygen-18, and carbon isotopes of dissolved inorganic carbon (DIC) and dissolved organic carbon (DOC). The U.S. Geological Survey (USGS) performed all the fieldwork on this project including measurement of water chemistry field parameters and sample collection. The major ions dissolved in the groundwater, deuterium, oxygen-18, and carbon isotopes of dissolved inorganic carbon (DIC) were analyzed by the USGS. All preparation and processing of samples for DOC carbon isotopic analyses and geochemical modeling were performed by the Desert Research Institute (DRI). Analysis of the DOC carbon dioxide gas produced at DRI to obtain carbon-13 and carbon-14 values was conducted at the University of Arizona Accelerator Facility (a NSHE Yucca Mountain project QA qualified contract facility). The major-ion chemistry, deuterium, oxygen-18, and carbon isotopes of DIC were used in geochemical modeling (NETPATH) to determine groundwater sources, flow paths, mixing, and ages. The carbon isotopes of DOC were used to calculate groundwater ages that are independent of DIC model corrected carbon-14 ages. The DIC model corrected carbon-14 calculated ages were used to evaluate groundwater travel times for mixtures of water including water beneath Yucca Mountain. When possible, groundwater travel times were calculated for groundwater flow from beneath Yucca Mountain to down gradient sample sites. DOC carbon-14 groundwater ages were also calculated for groundwaters in the Yucca Mountain area. When possible, groundwater travel times were estimated for groundwater flow from beneath Yucca Mountain to down gradient groundwater sample sites using the DOC calculated groundwater ages. The DIC calculated groundwater ages were compared with DOC calculated groundwater ages and both of these ages were compared to travel times developed in ground-water flow and transport models. If nuclear waste is stored in Yucca Mountain, the saturated zone is the final barrier against the release of radionuclides to the environment. The most recent rendition of the TSPA takes little credit for the presence of the saturated zone and is a testament to the inadequate understanding of this important barrier. If radionuclides reach the saturated zone beneath Yucca Mountain, then there is a travel time before they would leave the Yucca Mountain area and flow down gradient to the Amargosa Valley area. Knowing how long it takes groundwater in the saturated zone to flow from beneath Yucca Mountain to down gradient areas is critical information for potential radionuclide transport. Radionuclide transport in groundwater may be the quickest pathway for radionuclides in the proposed Yucca Mountain repository to reach land surface by way of groundwater pumped in Amargosa Valley. An alternative approach to ground-water flow and transport models to determine the travel time of radionuclides from beneath Yucca Mountain to down gradient areas in the saturated zone is by carbon-14 dating of both inorganic and organic carbon dissolved in the groundwater. A standard method of determining ground-water ages is to measure the carbon-13 and carbon-14 of DIC in the groundwater and then correct the measured carbon-14 along a flow path for geochemical reactions that involve carbon containing phases. These geochemical reactions are constrained by carbon-13 and isotopic fractionations. Without correcting for geochemical reactions, the ground-water ages calculated from only the differences in carbon-14 measured along a flow path (assuming the decrease in carbon-14 is due strictly to radioactive decay) could be tens of thousands of years too old. The computer program NETPATH, developed by the USGS, is the best geochemical program for correcting carbon-14 activities for geochemical r

  6. Technical and Policy Challenges in Deep Vadose Zone Remediation of Metals and Radionuclides

    SciTech Connect (OSTI)

    Wellman, Dawn M.; Truex, Michael J.; Freshley, Mark D.; Dresel, P. E.; Cantrell, Kirk J.

    2012-03-21

    Deep vadose zone contamination is a significant issue facing the U.S. Department of Energy’s (DOE) Office of Environmental Management (EM). Contamination in the deep vadose zone is isolated from exposure such that direct contact is not a factor in risk to human health and the environment; rather, movement of contamination from the deep vadose zone to the groundwater creates the potential for exposure and risk to receptors. Transport of deep vadose zone contamination and discharge to the groundwater creates the potential for exposure and risk to receptors, so limiting flux to groundwater is key for protection of groundwater resources. Remediation approaches for the deep vadose zone need to be considered within the regulatory context, targeted at mitigating the source of contamination and reduce contaminant flux to groundwater. This paper reviews the processes for deep vadose zone metal and radionuclide remediation as well as challenges and opportunities for implementation.

  7. Variable power distribution for zoned regeneration of an electrically heated particulate filter

    DOE Patents [OSTI]

    Bhatia, Garima [Bangalore, IN; Gonze, Eugene V [Pinckney, MI

    2012-04-03

    A system includes a particulate matter (PM) filter with multiple zones, an electric heater and a control module. The electrical heater includes heater segments, which each correspond with a respective one of the zones. The electrical heater is arranged upstream from and is proximate with the PM filter. The control module selectively applies a first energy level to a first one of the zones via a first one of the heater segments to initiate regeneration in the first zone. The control module also selectively applies a second energy level that is less than the first energy level to a second one of the zones via a second one of the heater segments to initiate regeneration in the second zone.

  8. US Office of Coastal Zone Management (OCZM) has approved an amendment to the Washington State Coastal Zone Management program

    SciTech Connect (OSTI)

    Not Available

    1980-01-14

    The US Office of Coastal Zone Management (OCZM) has approved an amendment to the Washington State Coastal Zone Management Program, which deletes the ''Evans Policy Statement'', on the grounds that it has no legally enforceable status under state or federal law on selection of an oil port site or the advisability of a pipeline hook-up. Existing state and federal regulations adequately protect the Puget Sound environment and delection of the statement from the program would have no significant impact on the environment. The deleted statement had held that Washington State supports the policy of a single, major oil transshipment port at, or west of, Port Angeles and that the subject port will provide a hook-up to supply existing refineries in Whatcom and Skagit Counties, Wash., with oil, thus precluding expansion of existing Puget Sound oil off-loading facilities. OCZM's action on this matter will have no effect on future government decisions on the proposed Northern Tier Pipeline Co. project or selection of an oil port. This rule is effective as of 12/31/79.

  9. ENERGY IN THE PACIFIC COASTAL ZONE DOES D.O.E. HAVE A ROLE?

    E-Print Network [OSTI]

    Ritschard, Ronald L.

    2013-01-01

    Coastal Zone annual oil production, 10 E + 06 bbl per year.58 percent of all regional oil production is in the coastalgenerating capacity, crude oil production~ total petroleum

  10. HSQ double patterning process for 12 nm resolution x-ray zone plates

    E-Print Network [OSTI]

    Chao, Weilun

    2009-01-01

    which is used here for electroplating the metal zones. Toresult in a single electroplating step to form allset II development and electroplating. Gold grains similar

  11. Modeling studies of mountain-scale radionuclide transport in the unsaturated zone at Yucca Mountain, Nevada

    E-Print Network [OSTI]

    Moridis, George J.; Seol, Yongkoo; Wu, Yu-Shu

    2003-01-01

    Investigations at Yucca Mountain - The Potential Repositoryin the Unsaturated Zone, Yucca Mountain, Nevada, ResourcesMODELING STUDIES OF MOUNTAIN-SCALE RADIONUCLIDE TRANSPORT IN

  12. Exploration of Resource and Transmission Expansion Decisions in the Western Renewable Energy Zone Initiative

    E-Print Network [OSTI]

    Mills, Andrew

    2010-01-01

    Colorado: National Renewable Energy Laboratory. http://Colorado: National Renewable Energy Laboratory. NREL/SR-550-Finn, J. 2009. Western Renewable Energy Zones, Phase 1: QRA

  13. The Viability of Sustainable, Self-Propping Shear Zones in Ehanced...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    The Viability of Sustainable, Self-Propping Shear Zones in Ehanced Geothermal Systems: Measurement of Reaction Rates at Elevated Temperatures The Viability of Sustainable,...

  14. Algerian Ivy Removal Techniques along a Riparian Zone in Berkeley, California

    E-Print Network [OSTI]

    Sanders, Lindsey

    2012-01-01

    Lucy Diekman, the Strawberry Creek Restoration Project, andKeywords: invasive species, Strawberry Creek, restoration,the riparian zone along Strawberry Creek running through the

  15. Demonstration of 12 nm resolution Fresnel zone plate lens based soft x-ray microscopy

    SciTech Connect (OSTI)

    Chao, W.; Kim, J.; Rekawa, S.; Fischer, P.; Anderson, E. H.

    2009-06-05

    To extend soft x-ray microscopy to a resolution of order 10 nm or better, we developed a new nanofabrication process for Fresnel zone plate lenses. The new process, based on the double patterning technique, has enabled us to fabricate high quality gold zone plates with 12 nm outer zones. Testing of the zone plate with the full-field transmission x-ray microscope, XM-1, in Berkeley, showed that the lens clearly resolved 12 nm lines and spaces. This result represents a significant step towards 10 nm resolution and beyond.

  16. Upper Devonian and Lower Mississippian conodont zones in Montana, Wyoming, and South Dakota

    E-Print Network [OSTI]

    Klapper, G.

    1966-05-23

    of the Cheiloceras-Stufe in New York are the same as HASS ' lower Gassaway faunal zone in its New York occurrence, with the exception of the South Wales Member of the Perrysburg Formation. The upper Gassaway fau- nal zone of the Chattanooga Shale (51, p. 22... of the Cheiloceras-Stufe in New York are the same as HASS ' lower Gassaway faunal zone in its New York occurrence, with the exception of the South Wales Member of the Perrysburg Formation. The upper Gassaway fau- nal zone of the Chattanooga Shale (51, p. 22...

  17. Massively parallel computing simulation of fluid flow in the unsaturated zone of Yucca Mountain, Nevada

    E-Print Network [OSTI]

    Zhang, Keni; Wu, Yu-Shu; Bodvarsson, G.S.

    2001-01-01

    Central Block Area, Yucca Mountain, Nye County, Nevada. Mapunsaturated zone, Yucca Mountain, Nevada. Water-Resourcesisotope distributions at Yucca Mountain. Sandia National

  18. Calibration of Yucca Mountain unsaturated zone flow and transport model using porewater chloride data

    E-Print Network [OSTI]

    Liu, Jianchun; Sonnenthal, Eric L.; Bodvarsson, Gudmundur S.

    2002-01-01

    of hydrogeologic units at Yucca Mountain, Nevada. U.S.infiltration for the Yucca Mountain Area, Nevada. Milestonethe unsaturated zone at Yucca Mountain, Nevada. J. Contam.

  19. Gradient zone-boundary control in salt-gradient solar ponds

    DOE Patents [OSTI]

    Hull, J.R.

    1982-09-29

    A method and apparatus for suppressing zone boundary migration in a salt gradient solar pond includes extending perforated membranes across the pond at the boundaries, between the convective and non-convective zones, the perforations being small enough in size to prevent individual turbulence disturbances from penetrating the hole, but being large enough to allow easy molecular diffusion of salt thereby preventing the formation of convective zones in the gradient layer. The total area of the perforations is a sizeable fraction of the membrane area to allow sufficient salt diffusion while preventing turbulent entrainment into the gradient zone.

  20. Human dimensions perspectives on the impacts of coastal zone marine renewable energy

    E-Print Network [OSTI]

    Pomeroy, Caroline; Conway, Flaxen; Hall-Arber, Madeleine

    2013-01-01

    between offshore renewable energy and existing uses on thecoastal zone marine renewable energy generation. REFERENCESOuter Continental Shelf Renewable Energy Space-Use Conflicts

  1. A Catalog of Vadose Zone Hydraulic Properties for the Hanford Site

    SciTech Connect (OSTI)

    Freeman, Eugene J.; Khaleel, Raziuddin; Heller, Paula R.

    2001-09-24

    The purpose of this catalog is to integrate all available soil physics data and information from vadose zone characterization and performance assessments into one useable, scientifically defensible document.

  2. Exploration of Resource and Transmission Expansion Decisions in the Western Renewable Energy Zone Initiative

    E-Print Network [OSTI]

    Mills, Andrew D

    2011-01-01

    Colorado: National Renewable Energy Laboratory. NREL/SR-Decisions in the Western Renewable Energy Zone Initiative.Moore, and C.K. Woo. 2009. “Renewable Portfolio Standards,

  3. New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    the mirrors gives a focusing effect, but for the finest resolution, devices known as Fresnel zone plates have been the choice. Looking somewhat like a microscopic archery target,...

  4. Subduction Zone Seismic Experiment in Peru: Results From a Wireless Seismic Network

    E-Print Network [OSTI]

    2009-01-01

    Sensing Subduction Zone Seismic Experiment in Peru:results from a wireless seismic Network Igor Stubailo,deployed in Peru. UCLA seismic line in Peru Lake Titicaca

  5. Analysis of offsite Emergency Planning Zones for Rocky Flats Plant

    SciTech Connect (OSTI)

    Inger, J.R. ); Brown-Strattan, M.A. . Rocky Flats Plant)

    1991-01-01

    The purpose of this quality assurance program was to ensure the quality and technical adequacy of Phase 2 of the Analysis of Offsite Emergency Planning Zones (EPZ) for the Rocky Flats Plant project. Quality assurance was accomplished by managing and controlling the processes in the development of the product. The quality assurance task team conducted audits, reviews, and surveillances of project and related activities. This process contributed to identifying areas where the quality assurance plan was not fully implemented, areas needing improvement, and/or corrective actions resulting in a improved product. During the reviews and audits, several key areas were identified where quality assurance plan implementation needed to be improved. These areas included maintaining adequate documentation, reviewing technical results, making inputs traceable to technical results, and understanding that all personnel are responsible for quality.

  6. Western Shallow Oil Zone, Elk Hills Field, Kern County, California:

    SciTech Connect (OSTI)

    Carey, K.B.

    1987-09-01

    The general Reservoir Study of the Western Shallow Oil Zone was prepared by Evans, Carey and Crozier as Task Assignment 009 with the United States Department of Energy. This study, Appendix II addresses the first Wilhelm Sands and its sub unites and pools. Basic pressure, production and assorted technical data were provided by the US Department of Energy staff at Elk Hills. These data were accepted as furnished with no attempt being made by Evans, Carey and Crozier for independent verification. This study has identified the petrophysical properties and the past productive performance of the reservoir. Primary reserves have been determined and general means of enhancing future recovery have been suggested. It is hoped that this volume can now additionally serve as a take off point for exploitation engineers to develop specific programs toward the end.

  7. Domoic acid production near California coastal upwelling zones, June 1998

    SciTech Connect (OSTI)

    Trainer, V L. (National Marine Fisheries Service); Adams, Nicolaus G. (National Marine Fisheries Service); Bill, Brian D. (National Marine Fisheries Service); Stehr, Carla M. (National Marine Fisheries Service); Wekell, John C. (National Marine Fisheries Service); Moeller, Peter (National Ocean Service, Marine Biotoxins Program); Busman, Mark (National Ocean Service, Marine Biotoxins Program); Woodruff, Dana L. (BATTELLE (PACIFIC NW LAB))

    2000-01-01

    Sea lion mortalities in central California during May and June 1998 were traced to their ingestion of sardines and anchovies that had accumulated the neurotoxin domoic acid. The detection of toxin in urine, feces, and stomach contents of several sea lions represents the first proven occurrence of domoic acid transfer through the food chain to a marine mammal. The pennate diatoms, Pseudo-nitzschia multiseries and P. australis, were the dominant, toxin-producing phytoplankton constituting algal blooms near Monterey Bay, Half Moon Bay, and Oceano Dunes, areas where sea lions with neurological symptoms stranded. Toxic Pseudo-nitzschia were also found near Morrow Bay, Point Conception, Point Arguello, and Santa Barbara, demonstrating that these species were widespread along the central California coast in June 1998. Measurements of domoic acid during three cruises in early June showed the highest cellular toxin levels in P. multiseries near Point A?o Nuevo and in P. australis from Morro w Bay. Maximum cellular domoic acid levels were observed within 20 km of the coast between 0 and 5 m depth, although toxin was also measured to depths of 40 m. Hydrographic data indicated that the highest toxin levels and greatest numbers of toxic cells were positioned in water masses associated with upwelling zones near coastal headlands. Nutrient levels at these sites were less than those typically measured during periods of active upwelling, due to the 1998 El Ni?o event. The flow of cells and/or nutrients from coastal headlands into embayments where cells can multiply in a stratified environment is a possible mechanism of bloom development along the central California coast. This coupling of toxic Pseudo-nitzschia growth near upwelling zones with physical processes involved in cell transport will be understood only when long-term measurements are made at several key coastal locations, aiding in our capability to predict domoic-acid producing algal blooms.

  8. Benthic Function and Structure in the Northern Gulf of Mexico Hypoxic Zone: Sediment Biogeochemistry and Macrobenthic Community Dynamics in the Dead Zone 

    E-Print Network [OSTI]

    Nunnally, Clifton

    2012-07-16

    as net sources of dissolved inorganic nitrogen, mostly ammonium, and silicate and a net sink of phosphate. Modeling simulations of benthic-pelagic coupling focused in the western study zones related field measurements of benthic nutrient regeneration...

  9. Deformation of Compliant Fault Zones Induced by Nearby Earthquakes: Theoretical Investigations in Three Dimensions and Applications to The East California Shear Zone 

    E-Print Network [OSTI]

    Kang, Jingqian

    2014-02-21

    Using dynamic modeling of earthquake rupture on a strike-slip fault and seismic wave propagation in a three dimensional inhomogeneous elastoplastic medium, I investigate the inelastic response of compliant fault zones to nearby earthquakes. I...

  10. A study of a zone approach to IAEA (International Atomic Energy Agency) safeguards: The low-enriched-uranium zone of a light-water-reactor fuel cycle

    SciTech Connect (OSTI)

    Fishbone, L.G.; Higinbotham, W.A.

    1986-06-01

    At present the IAEA designs its safeguards approach with regard to each type of nuclear facility so that the safeguards activities and effort are essentially the same for a given type and size of nuclear facility wherever it may be located. Conclusions regarding a state are derived by combining the conclusions regarding the effectiveness of safeguards for the individual facilities within a state. In this study it was convenient to define three zones in a state with a closed light-water-reactor nuclear fuel cycle. Each zone contains those facilities or parts thereof which use or process nuclear materials of the same safeguards significance: low-enriched uranium, radioactive spent fuel, or recovered plutonium. The possibility that each zone might be treated as an extended material balance area for safeguards purposes is under investigation. The approach includes defining the relevant features of the facilities in the three zones and listing the safeguards activities which are now practiced. This study has focussed on the fresh-fuel zone, the several facilities of which use or process low-enriched uranium. At one extreme, flows and inventories would be verified at each material balance area. At the other extreme, the flows into and out of the zone and the inventory of the whole zone would be verified. There are a number of possible safeguards approaches which fall between the two extremes. The intention is to develop a rational approach which will make it possible to compare the technical effectiveness and the inspection effort for the facility-oriented approach, for the approach involving the zone as a material balance area, and for some reasonable intermediate safeguards approaches.

  11. Effects of ion-neutral collisions on Alfven waves: The presence of forbidden zone and heavy damping zone

    SciTech Connect (OSTI)

    Weng, C. J. [Department of Physics, National Cheng Kung University, Tainan 701, Taiwan (China); Institute of Space Science, National Central University, Jhongli 320, Taiwan (China); Lee, L. C. [Institute of Space Science, National Central University, Jhongli 320, Taiwan (China); Institute of Earth Science, Academia Sinica, Nankang 115, Taiwan (China); Kuo, C. L. [Institute of Space Science, National Central University, Jhongli 320, Taiwan (China); Wang, C. B. [CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei (China)

    2013-03-15

    Alfven waves are low-frequency transverse waves propagating in a magnetized plasma. We define the Alfven frequency {omega}{sub 0} as {omega}{sub 0}=kV{sub A}cos{theta}, where k is the wave number, V{sub A} is the Alfven speed, and {theta} is the angle between the wave vector and the ambient magnetic field. There are partially ionized plasmas in laboratory, space, and astrophysical plasma systems, such as in the solar chromosphere, interstellar clouds, and the earth ionosphere. The presence of neutral particles may modify the wave frequency and cause damping of Alfven waves. The effects on Alfven waves depend on two parameters: (1) {alpha}=n{sub n}/n{sub i}, the ratio of neutral density (n{sub n}), and ion density (n{sub i}); (2) {beta}={nu}{sub ni}/{omega}{sub 0}, the ratio of neutral collisional frequency by ions {nu}{sub ni} to the Alfven frequency {omega}{sub 0}. Most of the previous studies examined only the limiting case with a relatively large neutral collisional frequency or {beta} Much-Greater-Than 1. In the present paper, the dispersion relation for Alfven waves is solved for all values of {alpha} and {beta}. Approximate solutions in the limit {beta} Much-Greater-Than 1 as well as {beta} Much-Less-Than 1 are obtained. It is found for the first time that there is a 'forbidden zone (FZ)' in the {alpha}-{beta} parameter space, where the real frequency of Alfven waves becomes zero. We also solve the wavenumber k from the dispersion equation for a fixed frequency and find the existence of a 'heavy damping zone (HDZ).' We then examine the presence of FZ and HDZ for Alfven waves in the ionosphere and in the solar chromosphere.

  12. On the Connectivity in One-Dimensional Ad Hoc Wireless Networks with a Forbidden Zone

    E-Print Network [OSTI]

    On the Connectivity in One-Dimensional Ad Hoc Wireless Networks with a Forbidden Zone Xiaodong Hu1 This paper investigates the connectivity in one-dimensional ad hoc wireless networks with a forbidden zone. We derive the probability of the wireless networks which are composed of exactly m clusters by means

  13. How do Distribution and Time Zones affect Software Development? A Case Study on

    E-Print Network [OSTI]

    Meyer, Bertrand

    How do Distribution and Time Zones affect Software Development? A Case Study on Communication local developments to geographically distributed projects. This paper presents a case study analyzing the effect of distribution and time zones on com- munication in distributed projects. The study was performed

  14. SEASONALITY OF FISHES OCCUPYING A SURF ZONE HABITAT IN THE NORTHERN GULF OF MEXICO

    E-Print Network [OSTI]

    AND STEPHEN T. ROSS2 ABSTRACf The ichthyofauna occupying the surfzone habitat ofHom Island, Mississippi tides), increased metabolic efficiency via heat acquisition, and protection from predation. Surf zone occurrences within the surf zone of Horn Island, Miss., a barrier island in the northern Gulf of Mexico

  15. Structure and tectonics of the Sumatra Fault Zone-Sundra Trench junction 

    E-Print Network [OSTI]

    Handayani, Lina

    1999-01-01

    The Sunda French marks the subjection zone of Indian-Australian plate beneath the Eurasian plate. Due to the geometry of the Eurasian plate, the convergence is normal towards Java and oblique towards Sumatra. A major zone of dextral strike slip...

  16. Whole-mantle convection and the transition-zone water filter

    E-Print Network [OSTI]

    Whole-mantle convection and the transition-zone water filter David Bercovici & Shun-ichiro Karato-zone water-filter model can explain many geochemical observations while avoiding the major pitfalls an alternative hypothesis that, rather than being divided into isolated reservoirs, the mantle is filtered

  17. The influence of the transition zone water filter on convective circulation in the mantle

    E-Print Network [OSTI]

    The influence of the transition zone water filter on convective circulation in the mantle Garrett M 2004. [1] The ``transition zone water filter'' model of mantle convection attempts to reconcile bulk mass and heat transfer across mantle interfaces. Here we test the basic effect of the water filter

  18. Seismological implications of a lithospheric low seismic velocity zone Yingcai Zheng a,b,c,

    E-Print Network [OSTI]

    Nimmo, Francis

    Sight (Interior exploration using Seismic investigations, geodesy and heat transport) Martian lander will deploySeismological implications of a lithospheric low seismic velocity zone in Mars Yingcai Zheng a Mars seismological structure Seismic low velocity zone a b s t r a c t Most seismological models

  19. Dynamics of a fishery on two fishing zones with fish stock dependent migrations: aggregation and control

    E-Print Network [OSTI]

    Bravo de la Parra, Rafael

    Dynamics of a fishery on two fishing zones with fish stock dependent migrations: aggregation a specific stock-effort dynamic model. The stock corresponds to two fish populations growing and moving between two fishing zones, on which they are harvested by two different fleets. The effort represents

  20. STRATEGIES FOR IMMOBILIZATION OF DEEP VADOSE ZONE CONTAMINANTS AT THE HANFORD CENTRAL PLATEAU

    SciTech Connect (OSTI)

    CHRONISTER GB

    2011-01-14

    Deep vadose zone contamination poses some of the most difficult remediation challenges for the protection of groundwater at the Hanford Site in Richland, Washington. This paper describes processes and technologies being developed to use in the ongoing effort to remediate the contamination in the deep vadose zone at the Hanford Site.

  1. Slab dehydration in the Earth's mantle transition zone Guillaume Richard , David Bercovici, Shun-Ichiro Karato

    E-Print Network [OSTI]

    -dependent solubility. The self-adjustment entails the concentration of water reaching a local maximum below the top of the high water solubility in wadsleyite and ringwoodite, the mantle transition zone is possibly a large water reservoir. The potentially high water content of the Earth's mantle transition zone is a key

  2. Ecology of freshwater shore zones David L. Strayer Stuart E. G. Findlay

    E-Print Network [OSTI]

    , maintenance of water quality, and dispersal corridors for plants and animals. Humans have used shore zones and connectivity. Shore zones dissi- pate large amounts of physical energy, can receive and process extraordinarily cycling. Interactions between organic matter inputs (including wood), physical energy, and the biota

  3. Tracking deep mantle reservoirs with ultra-low velocity zones Allen K. McNamara a,

    E-Print Network [OSTI]

    Rhoads, James

    Tracking deep mantle reservoirs with ultra-low velocity zones Allen K. McNamara a, , Edward J, that directly overlies the core-mantle boundary (CMB). These regions have been dubbed Ultra-Low Velocity Zones. Introduction For over 15 yrs seismologists have mapped regions of ultra-low P- and S-wave velocities

  4. Limited hydrologic response to Pleistocene climate change in deep vadose zones --Yucca Mountain, Nevada

    E-Print Network [OSTI]

    Reiners, Peter W.

    Limited hydrologic response to Pleistocene climate change in deep vadose zones -- Yucca Mountain paleohydrogeology paleoclimate U-series dating secondary ion mass spectrometry Yucca Mountain Understanding to Pleistocene climate change within a deep vadose zone in the eastern Mojave Desert at Yucca Mountain, Nevada

  5. A Radionuclide Transport Model for the Unsaturated Zone at Yucca Mountain Bruce A. Robinson

    E-Print Network [OSTI]

    Lu, Zhiming

    A Radionuclide Transport Model for the Unsaturated Zone at Yucca Mountain Bruce A. Robinson Zhiming model calculations for radionuclide transport in the unsaturated zone at Yucca Mountain. The model developed by the Yucca Mountain Project based on calibrations to site data. The particle-tracking technique

  6. APPLICATION OF DIGITALMULTISPECTRAL IMAGERY TO LITTORAL ZONE SOIL AND ELEVATION MODELING-

    E-Print Network [OSTI]

    Fabrizio, Mary C.

    . The two primary landform zones found within the study area include the coastal beach zone and the dune of longitudinally oriented upland, sandy dunes dissected by very wet marshes. This coastal geomorphology, common between vegetation, soil and elevation data. Upon review, statistics suggested there was association

  7. Direct dating of left-lateral deformation along the Red River shear zone, China and Vietnam

    E-Print Network [OSTI]

    Direct dating of left-lateral deformation along the Red River shear zone, China and Vietnam Lisa D-lateral shearing. Data from the southern RRSZ within Vietnam are complicated by Tertiary overprinting of rocks dating of left-lateral deformation along the Red River shear zone, China and Vietnam, J. Geophys. Res

  8. Analysis of Heating Systems and Scale of Natural Gas-Condensing Water Boilers in Northern Zones 

    E-Print Network [OSTI]

    Wu, Y.; Wang, S.; Pan, S.; Shi, Y.

    2006-01-01

    In this paper, various heating systems and scale of the natural gas-condensing water boiler in northern zones are discussed, based on a technical-economic analysis of the heating systems of natural gas condensing water boilers in northern zones...

  9. Heat Affected Zone Microstructures and Their Influence on Toughness in Two Microalloyed HSLA Steels

    E-Print Network [OSTI]

    Rohrer, Gregory S.

    microalloyed steels following heat treatments to simulate weld heat affected zone (HAZ) structures over a range on the second of these, toughness of the CG HAZ and uses thermal treatments to simulate effects of welding heat1 Heat Affected Zone Microstructures and Their Influence on Toughness in Two Microalloyed HSLA

  10. Contribution of small scale turbulence to burning velocity of flamelets in the thin reaction zone regime

    E-Print Network [OSTI]

    Gülder, Ömer L.

    Contribution of small scale turbulence to burning velocity of flamelets in the thin reaction zone the turbulent burning velocity under the conditions corresponding to the thin reaction zones regime. Approaches turbulence on flam- elet burning velocity. An expression was derived to estimate the contribution of flame

  11. Impacts on Shrimp Yields of the 1981 Fishery Conservation Zone Closure off Texas

    E-Print Network [OSTI]

    Impacts on Shrimp Yields of the 1981 Fishery Conservation Zone Closure off Texas scan NICHOLS Zone (FCZ) off the Texas coast. The FCZ was closed to implement part of the "Fishery Management Plan aztecus (Ives) to grow larger before harvesting. Since 1959, Texas state waters (the Territorial Sea, 0

  12. Solid oxide fuel cell systems with hot zones having improved reactant distribution

    DOE Patents [OSTI]

    Poshusta, Joseph C.; Booten, Charles W.; Martin, Jerry L.

    2012-11-06

    A Solid Oxide Fuel Cell (SOFC) system having a hot zone with a center cathode air feed tube for improved reactant distribution, a CPOX reactor attached at the anode feed end of the hot zone with a tail gas combustor at the opposing end for more uniform heat distribution, and a counter-flow heat exchanger for efficient heat retention.

  13. Solid oxide fuel cell systems with hot zones having improved reactant distribution

    DOE Patents [OSTI]

    Poshusta, Joseph C; Booten, Charles W; Martin, Jerry L

    2013-12-24

    A Solid Oxide Fuel Cell (SOFC) system having a hot zone with a center cathode air feed tube for improved reactant distribution, a CPOX reactor attached at the anode feed end of the hot zone with a tail gas combustor at the opposing end for more uniform heat distribution, and a counter-flow heat exchanger for efficient heat retention.

  14. Usefulness of the Interface Fresnel zone for simulating the seismic reflected amplitudes

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Usefulness of the Interface Fresnel zone for simulating the seismic reflected amplitudes Nathalie.favretto@univ-pau.fr 211 route du Bourg, 64230 Beyrie-en-Béarn, France Keywords Fresnel volume, Interface Fresnel zone Abstract The aim of the paper is to emphasize the importance of accounting for the Fresnel volume (FV

  15. The Interface Fresnel Zone revisited Nathalie Favretto-Cristini, Paul Cristini and Eric de Bazelaire

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Interface Fresnel Zone revisited Nathalie Favretto-Cristini, Paul Cristini and Eric de, and for seismic resolution. We reformulate the concepts of Fresnel volumes (FV) and Interface Fresnel zones (IFZ ray path (i.e., the 1st Fresnel volume) contributes to the received wavefield for each frequency

  16. Remote sensing of the coastal zone: an overview and priorities for future research

    E-Print Network [OSTI]

    Remote sensing of the coastal zone: an overview and priorities for future research TIM J. MALTHUS of the International Journal of Remote Sensing on Remote Sensing of the Coastal Marine Environment to highlight recent advances in knowledge of remote sensing of the coastal zone and to define a series of priorities where

  17. Personal audio with a planar bright zone Philip Coleman,a)

    E-Print Network [OSTI]

    Jackson, Philip JB

    Kingdom Jan Abildgaard Pedersenb) Bang & Olufsen A/S, Peter Bangs Vej 15, DK7600, Struer, Denmark 1 #12 re- production do not consider control of the bright zone phase, which may lead to self. Single-zone approaches have considered plane wave reproduction by focusing the sound energy in to a point

  18. PV Interconnection Risk Analysis through Distribution System Impact Signatures and Feeder Zones

    E-Print Network [OSTI]

    PV Interconnection Risk Analysis through Distribution System Impact Signatures and Feeder Zones Grid Integration Sandia National Laboratories Albuquerque, NM, USA Abstract-- High penetrations of PV reliability problems. In order to improve the interconnection study process, the use of feeder zones and PV

  19. Using Pre-Modeled Scenarios to Estimate Groundwater VOC Concentrations Resulting from Vadose Zone Sources

    SciTech Connect (OSTI)

    Oostrom, Martinus; Truex, Michael J.; Rice, Amy K.; Johnson, Christian D.; Carroll, Kenneth C.; Becker, Dave; Simon, Michelle A.

    2014-04-28

    Soil vapor extraction (SVE) is a prevalent remediation approach for volatile contaminants in the vadose zone. To support selection of an appropriate endpoint for the SVE remedy, an evaluation is needed to determine whether vadose zone contamination has been diminished sufficiently to protect groundwater. When vapor-phase transport is an important component of the overall contaminant fate and transport from a vadose zone source, the contaminant concentration expected in groundwater is controlled by a limited set of parameters, including specific site dimensions, vadose zone properties, and source characteristics. An approach was developed for estimating the contaminant concentration in groundwater resulting from a contaminant source in the vadose zone based on pre-modeling contaminant transport for a matrix of parameter value combinations covering a range of potential site conditions. An interpolation and scaling process are then applied to estimate groundwater impact for site-specific conditions.

  20. Western Renewable Energy Zones, Phase 1: QRA Identification Technical Report

    SciTech Connect (OSTI)

    Pletka, R.; Finn, J.

    2009-10-01

    This report describes the Western Renewable Energy Zones (WREZ) Initiative Phase 1 Qualified Resource Area identification process, including the identification and economic analysis of Qualified Resource Areas (QRAs) and 'non-REZ' resources. These data and analyses will assist the Western US in its renewable energy transmission planning goals. The economic analysis in this report produced the input data for the WREZ Generation and Transmission model, which is a screening-level model to determine the optimal routing for and cost of delivering renewable energy from QRAs to load centers throughout the Western Interconnection. In June 2009, the Western Governors' Association accepted the Western Governors' Association WREZ Phase 1 Report in which the QRAs were mapped and the entire WREZ Phase 1 process was explained in general. That same month the Lawrence Berkeley National Laboratory released the WREZ Generation and Transmission Model (GTM), which was also developed by Black & Veatch. This report details the assumptions and methodologies that were used to produce the maps and resource analyses in the WGA report as well as the economic data used by the WREZ GTM. This report also provides the results of the non-REZ resource analysis for the first time in the WREZ initiative.

  1. New dynamics of the Sun convection zone and global warming

    E-Print Network [OSTI]

    Bershadskii, A

    2008-01-01

    Solar activity is studied using cluster analysis of the sunspot number time-fluctuations. It is shown that for a Historic period (1850-1932yy) the cluster exponent $\\alpha \\simeq 0.37$ (strong clustering) for the high activity components of the solar cycles, whereas for a Modern period (last seven solar cycles: 1933-2007) the cluster exponent $\\alpha \\simeq 0.50$ (random, white noise-like situation). Then, comparing these results with the corresponding data from the classic laboratory convection experiments it is shown, that for the Historic period emergence of the sunspots in the solar photosphere was strongly dominated by turbulent photospheric convection. For the Modern period, this domination was broken by a new more active dynamics of the inner layers of the convection zone. Then, it is shown that the dramatic change of the sun dynamics in the transitional period (between the Historic and Modern periods, solar cycle 1933-1944yy) had clear detectable impact on the global Earth climate at this period. Name...

  2. Trace-element zoning in garnets from sheared mantle xenoliths

    SciTech Connect (OSTI)

    Griffin, W.L.; Cousens, D.R.; Ryan, C.G.; Sie, S.H.; Suter, G.F. ); Smith, D. ); Boyd, F.R. )

    1989-02-01

    Proton-microprobe analyses of garnets from sheared high-temperature ultramafic xenoliths reveal marked zonation of trace elements, paralleling trends in major and minor elements. Garnet rims (600-1,000 {mu}m wide) are enriched in Fe, Ti, Zr, Y and Ga, and either enriched or depleted in Cr, relative to cores. Zoning profiles for Ti and Zr are S-shaped and extend further into the grains than the Cr and Ga gradients. The profiles are consistent with the formation of Ti, Zr, Y-enriched garnet overgrowths, followed by diffusive equilibration between rim and core over years to hundreds of years. This enrichment in Fe, Ca, Al and incompatible elements is ascribed to melt infiltration and consequent melt-crystal exchange and garnet growth, shortly before eruption. Zr/Y is 1 to 2 in garnet cores but 4 to 5 in rims, and so the infiltrating melt may have been relatively alkalic. Major and trace element concentrations in such high-temperature sheared xenoliths are not likely to resemble those of primitive mantle or of residual mantle depleted by melt extraction.

  3. Vadose Zone Hydrogeology Data Package for Hanford Assessments

    SciTech Connect (OSTI)

    Last, George V.; Freeman, Eugene J.; Cantrell, Kirk J.; Fayer, Michael J.; Gee, Glendon W.; Nichols, William E.; Bjornstad, Bruce N.; Horton, Duane G.

    2006-06-01

    This data package documents the technical basis for selecting physical and geochemical parameters and input values that will be used in vadose zone modeling for Hanford assessments. This work was originally conducted as part of the Characterization of Systems Task of the Groundwater Remediation Project managed by Fluor Hanford, Inc., Richland, Washington, and revised as part of the Characterization of Systems Project managed by the Pacific Northwest National Laboratory (PNNL) for the U.S. Department of Energy, Richland Operations Office (DOE-RL). This data package describes the geologic framework, the physical, hydrologic, and contaminant transport properties of the geologic materials, and deep drainage (i.e., recharge) estimates, and builds on the general framework developed for the initial assessment conducted using the System Assessment Capability (SAC) (Bryce et al. 2002). The general approach for this work was to update and provide incremental improvements over the previous SAC data package completed in 2001. As with the previous SAC data package, much of the data and interpreted information were extracted from existing documents and databases. Every attempt was made to provide traceability to the original source(s) of the data or interpretations.

  4. The Influence of Proposed Repository Thermal Load on Multiphase Flow and Heat Transfer in the Unsaturated Zone of Yucca Mountain

    E-Print Network [OSTI]

    Wu, Y.-S.; Mukhopadhyay, Sumit; Zhang, Keni; Bodvarsson, G.S.

    2006-01-01

    two-phase zone, is the heat-pipe (i.e. , a zone of constant4a), when there is a heat pipe just above the emplacementduring ventilation, the heat-pipe signature is absent in

  5. Fine scale imaging of structures at and near the mantle transition zone using a generalized Radon transform

    E-Print Network [OSTI]

    Lamm, Rosalee Alicia

    2006-01-01

    We apply a generalized Radon transform (GRT) to the study of the transition zone discontinuities. The transition zone discontinuities, e.g. the '410' and '660', result from mineral phase changes that occur at depths ...

  6. From form to function : an evaluation of the effectiveness and potential of form-based zoning codes

    E-Print Network [OSTI]

    Kohr, R. Todd (Robert Todd), 1976-

    2004-01-01

    This thesis analyzes the effectiveness and potential of form-based zoning codes, focusing on three research questions: (1) Are form-based codes a fundamentally-different alternative to Euclidean zoning, or are they simply ...

  7. Determination of the pore fluid pressure ratio at seismogenic megathrusts in subduction zones: Implications for strength of

    E-Print Network [OSTI]

    Seno, Tetsuzo

    and Sella, 2002]. In collision zones, such as the Himalaya-Tibet and Zagros, offscraping of underthrusting

  8. Technical and Policy Challenges in Deep Vadose Zone Remediation of Metals and Radionuclides - 12025

    SciTech Connect (OSTI)

    Wellman, Dawn M.; Truex, Michael J.; Freshley, Mark; Cantrell, Kirk J.; Dresel, P. Evan

    2012-07-01

    Deep vadose zone contamination is a significant issue facing the U.S. Department of Energy's (DOE) Office of Environmental Management (EM). Contamination in the deep vadose zone is isolated from exposure such that direct contact is not a factor in risk to human health and the environment. Transport of deep vadose zone contamination and discharge to the groundwater creates the potential for exposure and risk to receptors, so limiting flux to groundwater is key for protection of groundwater resources. Remediation approaches for the deep vadose zone need to be considered within the regulatory context, targeted at mitigating the source of contamination and reducing contaminant flux to groundwater. Processes for deep vadose zone metal and radionuclide remediation are discussed, as well as challenges and opportunities for implementation. It may be useful to consider the risk and challenges with leaving contaminants in place as part of a flux-control remedy in comparison with risks associated with contaminant removal and final disposition elsewhere. Understanding and quantifying the ramifications of contaminant removal and disposition options are therefore warranted. While this review suggests that some additional development work is needed for deep vadose zone remediation techniques, the benefits of applying vadose zone remediation for groundwater protection are compelling and worthy of continued development. (authors)

  9. Double patterning HSQ processes of zone plates for 10 nm diffraction limitedperformance

    SciTech Connect (OSTI)

    Chao, Weilun; Kim, Jihoon; Anderson, Erik H.; Fischer, Peter; Rekawa, Senajith; Attwood, David T.

    2009-01-09

    In e-beam lithography, fabrication of sub-20 nm dense structures is challenging. While there is a constant effort to develop higher resolution resist processes, the progress of increasing pattern density is slow. For zone plates, consisting of dense lines and spaces, the outermost zone width has been limited to slightly less than 20 nm due to effects such as low aerial image contrast, forward scattering, intrinsic resist resolution, and development issues. To circumvent these effects, we have successfully developed a new double patterning HSQ process, and as a result, we have fabricated zone plates of 10 and 12 nm using the process. We previously developed a double patterning process in which a dense zone plate pattern is sub-divided into two semi-isolated, complementary zone set patterns. These patterns are fabricated separately and then overlaid with high accuracy to yield the desired pattern. The key to success with this process is the accuracy of the overlay. For diffraction-limited zone plates, accuracy better than one-third of the smallest zone width is needed. In our previous work, the zone set patterns were formed using PMMA and gold electroplating, which were overlaid and aligned to the zero-level mark layer with sub-pixel accuracy using our internally developed algorithm. The complete zone plate fabrication was conducted in-house. With this process, we successfully fabricated zone plates of 15 nm outermost zone. Using this zone plate, we were able to achieve sub-15 nm resolution at 1.52 nm wavelength, the highest resolution ever demonstrated in optical microscopy at that time. We attempted to extend the process to fabricating 12 nm and smaller zones. However, the modest PMMA contrast, combined with a relatively large electron beam size compared to the target feature sized limited the process latitude. To overcome this problem, we developed a new overlay process based on high resolution negative tone resist of hydrogen silsesquioxane (HSQ). With the development in TMAH at 45 C, we can reliably achieve zone width as small as 8 nm with negligible line edge roughness in the semi-dense zone set. Such narrow zones in HSQ, however, detach easily from the gold plating base substrate needed for the electroplating step. We developed a process to condition the gold substrate with (3-mercaptopropyl) trimethoxysilane, or 3-MTP, which can form a homogeneous hydroxylation surface on gold surface and bond with hydroxyl in HSQ. Fig 2 shows the basic process steps of the double patterning HSQ process. Unlike the PMMA process, both zone sets are formed in HSQ and overlaid, and the complete zone plate pattern is converted to gold using electroplating in the final step. Using the new process, we successfully realized zone plates of 10 nm and 12 nm outermost zones. Fig. 3 shows the SEM micrographs of the zone plates outer regions. The zone plates are 30 nm thick in gold. To the best of our knowledge, these zone plates have the smallest zonal features ever fabricated using e-beam lithography. The complete zone plate fabrication was conducted in-house, using our vector scan electron beam lithography tool, the Nanowriter, which has a measured beam diameter of 6.5 nm (FWHM) at 100 keV. An internally developed, sub-pixel alignment algorithm, based on auto/cross-correlation methods, was used for the overlay. A 12 nm zone plate was tested with a full-field transmission x-ray microscope at the LBNL's Advanced Light Source. Fig. 4 shows an x-ray image of a 40 nm thick gold radial spoke pattern taken with the zone plate at 1.75 nm wavelength (707eV, FeL3 edge), along with the scanning transmission electron micrograph of same object. Numerous small features in the object can be seen in the x-ray image. Data analysis indicates that a near diffraction limited performance was achieved using the zone plate. In our presentation, we will discuss the details and subtleties of the overlay fabrication as well as the zone plate image results.

  10. Vapor-like liquid coexistence densities affect the extension of the critical point's influence zone

    E-Print Network [OSTI]

    Jose Luis Rivera; Homero Nicanor-Guzman; Roberto Guerra-Gonzalez

    2015-04-16

    The critical point affects the coexistence behavior of the vapor-liquid equilibrium densities. The length of the critical influence zone is under debate because for some properties, like shear viscosity, the extension is only a few degrees, while for others, such as the density order parameter, the critical influence zone range covers up to hundreds of degrees below the critical temperature. Here we show that for a simple molecular potential of ethane, the critical influence zone covers a wide zone of tens of degrees (below the critical temperature) down to a transition temperature, at which the apparent critical influence zone vanishes and the transition temperature can be predicted through a pressure analysis of the coexisting bulk liquid phase. The liquid phases within the apparent critical influence zone show low densities, making them behave internally like their corresponding vapor phases. Therefore, the experimentally observed wide extension of the critical influence zone is due to a vapor-like effect due to low bulk liquid phase densities.

  11. Three-Dimensional Modeling of Hydrodynamics and Salinity in the San Francisco Estuary: An Evaluation of Model Accuracy, X2, and the Low–Salinity Zone

    E-Print Network [OSTI]

    MacWilliams, Michael L.; Bever, Aaron J.; Gross, Edward S.; Ketefian, Gerard S.; Kimmerer, Wim J.

    2015-01-01

    of Model Accuracy, X2, and the Low-Salinity Zone Michael L.habitat and extent of the low- salinity zone with freshwaterand temporal extent of the low-salinity zone (LSZ), defined

  12. Abstract. This paper gives details of an algorithm whose purpose is to partition a set of populated zones into contiguous regions in order to minimise the dierence in

    E-Print Network [OSTI]

    Danner, Andrew

    of the School of Geography, University of Leeds for his contribution to the development work associated the boundaries for a set of contiguous zones. Each zone is characterised by a label (the zone's identi

  13. Analysis of a one-dimensional model for the regulation of the size of the renewable zone in biological tissue.

    E-Print Network [OSTI]

    Mjolsness, Eric

    Analysis of a one-dimensional model for the regulation of the size of the renewable zone, 630090 The results of a numerical study of a cell-oriented model of the regulation of the renewable zone of the renewable zone is suggested. The shoot apical meristem (SAM) is provided as an example. The model is cell

  14. Simulation of fluid flow mechanisms in high permeability zones (Super-K) in a giant naturally fractured carbonate reservoir 

    E-Print Network [OSTI]

    Abu-Hassoun, Amer H.

    2009-05-15

    the Super-K Zone was investigated. It is known that these zones are connected to naturally occurring fractures. Fluid flow in naturally fractured reservoirs is a very difficult mechanism to understand. To accomplish this mission, the Super-K Zone...

  15. Summary -Procedure For Shutting Off The Oxygen Zone Valve 1. Implement RACE Call the Emergency Operator at 4-2012.

    E-Print Network [OSTI]

    Acton, Scott

    Summary - Procedure For Shutting Off The Oxygen Zone Valve 1. Implement RACE ­ Call the Emergency-cylinders for low oxygen needs and bag ventilated patients using E-cylinders. 4. Identify oxygen zone valve for the affected rooms/areas. 5. Turn off the flow of oxygen at the zone valve if the oxygen cannot be turned off

  16. BRITTLE FRACTURE IN HEAT-AFFECTED ZONES OF GIRTH WELDS OF MODERN LINE PIPE STEEL (X100)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    BRITTLE FRACTURE IN HEAT-AFFECTED ZONES OF GIRTH WELDS OF MODERN LINE PIPE STEEL (X100) A.-S. BILAT welds of modern line pipe steel, such as X100, issued from a pulsed automatic gas metal arc welding). The brittle zone is located in the coarse-grained heat-affected zone of the weld. The reproduction of two heat

  17. Modeling the ratios of SKKS and SKS amplitudes with ultra-low velocity zones at the core-mantle boundary

    E-Print Network [OSTI]

    Ritsema, Jeroen

    Modeling the ratios of SKKS and SKS amplitudes with ultra-low velocity zones at the core of earthquakes in Indonesia. Modeling of SKKS/SKS indicate that Ultra-Low Velocity Zones (ULVZs), layers, and M. S. Thorne (2009), Modeling the ratios of SKKS and SKS amplitudes with ultra-low velocity zones

  18. Seismic structure and ultra-low velocity zones at the base of the Earth's mantle beneath Southeast Asia

    E-Print Network [OSTI]

    Wen, Lianxing

    Seismic structure and ultra-low velocity zones at the base of the Earth's mantle beneath Southeast t We constrain seismic structure and ultra-low velocity zones near the Earth's core-mantle boundary that the strong scatterers represent ultra-low velocity zones (ULVZs). We suggest that the seismic structure

  19. Location Privacy with Road network Mix-zones Balaji Palanisamy, Ling Liu, Kisung Lee, Aameek Singh and Yuzhe Tang

    E-Print Network [OSTI]

    Liu, Ling

    Location Privacy with Road network Mix-zones Balaji Palanisamy, Ling Liu, Kisung Lee, Aameek Singh attacks that make mix-zones on road networks vulnerable and illustrate a set of counter measures to make road network mix-zones attack resilient. Concretely, we categorize the vulnerabilities of road network

  20. Properties of the Initial Participant Matter Interaction Zone in Near Fermi-Energy Heavy Ion Collisions

    E-Print Network [OSTI]

    J. Wang; T. Keutgen; R. Wada; K. Hagel; S. Kowalski; T. Materna; L. Qin; Z. Chen; J. B. Natowitz; Y. G. Ma; M. Murray; A. Keksis; E. Martin; A. Ruangma; D. V. Shetty; G. Souliotis; M. Veselsky; E. M. Winchester; S. J. Yennello; D. Fabris; M. Lunardon; S. Moretto; G. Nebbia; S. Pesente; V. Rizzi; G. Viesti; M. Cinausero; G. Prete; J. Cibor; W. Zipper; Z. Majka; P. Staszel; Y. El Masri; R. Alfarro; A. Martinez-Davalos; A. Menchaca-Rocha; A. Ono

    2006-03-07

    The sizes, temperatures and free neutron to proton ratios of the initial interaction zones produced in the collisions of 40 MeV/nucleon $^{40}$Ar + $^{112}$Sn and 55 MeV/nucleon$^{27}$Al + $^{124}$Sn are derived using total detected neutron plus charged particle multiplicity as a measure of the impact parameter range and number of participant nucleons. The size of the initial interaction zone, determined from a coalescence model analysis, increases significantly with decreasing impact parameter. The temperatures and free neutron to proton ratios in the interaction zones are relatively similar for different impact parameter ranges and evolve in a similar fashion.