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Sample records for geochemical exploration method

  1. Hg Anomalies In Soils- A Geochemical Exploration Method For Geothermal...

    Open Energy Info (EERE)

    Hg Anomalies In Soils- A Geochemical Exploration Method For Geothermal Areas Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Hg Anomalies In...

  2. DNA-based methods of geochemical prospecting

    DOE Patents [OSTI]

    Ashby, Matthew (Mill Valley, CA)

    2011-12-06

    The present invention relates to methods for performing surveys of the genetic diversity of a population. The invention also relates to methods for performing genetic analyses of a population. The invention further relates to methods for the creation of databases comprising the survey information and the databases created by these methods. The invention also relates to methods for analyzing the information to correlate the presence of nucleic acid markers with desired parameters in a sample. These methods have application in the fields of geochemical exploration, agriculture, bioremediation, environmental analysis, clinical microbiology, forensic science and medicine.

  3. Exploring Frontiers in Kinetics and Mechanisms of Geochemical Processes at the Mineral/Water Interface

    E-Print Network [OSTI]

    Sparks, Donald L.

    Exploring Frontiers in Kinetics and Mechanisms of Geochemical Processes at the Mineral geochemical processes including surface complexation, mineral transformations, and oxidation

  4. JlJURNAL OF EXPiRRAllONELSEVIER Journal of Geochemical Exploration 54 ( 1995) 167-l 75

    E-Print Network [OSTI]

    Bodnar, Robert J.

    JlJURNAL OF EXPiRRAllONELSEVIER Journal of Geochemical Exploration 54 ( 1995) 167-l 75 Comparison, Australia Received 16November 1994; accepted 18May 1995 Abstract Fluid inclusions in quartz from barren that the sample is from the central portion of the hydrothermal system that hosts 0375-6742/95/$09.50 0 1995

  5. Hg Anomalies In Soils- A Geochemical Exploration Method For Geothermal

    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 History View NewGuam: Energyarea, CaliforniaHess Retail NaturalAreas | Open Energy

  6. Development of Exploration Methods for Engineered Geothermal...

    Open Energy Info (EERE)

    Systems Through Integrated Geophysical, Geologic and Geochemical Interpretation the Seismic Analysis Component Jump to: navigation, search OpenEI Reference LibraryAdd to library...

  7. Seismic methods for resource exploration in enhanced geothermal systems

    E-Print Network [OSTI]

    Gritto, Roland; Majer, Ernest L.

    2002-01-01

    Seismic Methods for Resource Exploration in Enhancedseismic wave interactions with discrete, finite length fractures, Proceedings Seventy- Second Annual Meeting, Society of Exploration

  8. Development of Exploration Methods for Engineered Geothermal...

    Open Energy Info (EERE)

    is proposed using existing geophysical exploration technology coupled with new seismic techniques and subject matter experts to determine the combination of geoscience data...

  9. Preclosure Monitoring and Performance Confirmation at Yucca Mountain: Applicability of Geophysical, Geohydrological, and Geochemical Methods

    E-Print Network [OSTI]

    Tsang, C.F.

    2010-01-01

    Seismic Stratigraphy-Applications to Hydrocarbon Exploration,exploration for imaging large scale structures. There have been numerous studies showing that seismic

  10. The evolution of shallow seismic exploration methods

    E-Print Network [OSTI]

    Steeples, Don W.; Schmeissner, Chris M.; Macy, Brian

    1995-07-01

    Near-surface seismic methods have developed considerably and have been applied much more widely since the 1970s. Improvements in instrumentation, along with cheaper computer power, have greatly affected the capabilities of these methods in recent...

  11. 3-D Seismic Methods For Geothermal Reservoir Exploration And...

    Open Energy Info (EERE)

    3-D Seismic Methods For Geothermal Reservoir Exploration And Assessment-Summary Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: 3-D Seismic Methods For...

  12. Accelerated weight histogram method for exploring free energy landscapes

    E-Print Network [OSTI]

    Lindahl, Viveca; Hess, Berk

    2014-01-01

    Calculating free energies is an important and notoriously difficult task for molecular simulations. The rapid increase in computational power has made it possible to probe increasingly complex systems, yet extracting accurate free energies from these simulations remains a major challenge. Fully exploring the free energy landscape of, say, a biological macromolecule typically requires sampling large conformational changes and slow transitions. Often, the only feasible way to study such a system is to simulate it using an enhanced sampling method. The accelerated weight histogram (AWH) method is a new, efficient extended ensemble sampling technique which adaptively biases the simulation to promote exploration of the free energy landscape. The AWH method uses a probability weight histogram which allows for efficient free energy updates and results in an easy discretization procedure. A major advantage of the method is its general formulation, making it a powerful platform for developing further extensions and an...

  13. HBH-GEOCHEM-GEOPHY

    Energy Science and Technology Software Center (OSTI)

    003015WKSTN00 Hiereachical Bayesian Model for Combining Geochemical and Geophysical Data for Environmental Applications Software   

  14. Methods of exploring energy diffusion in lattices with finite temperature

    E-Print Network [OSTI]

    Ping Hwang; Hong Zhao

    2011-06-15

    We discuss two methods for exploring energy diffusion in lattices with finite temperature in this paper. The first one is the energy-kick (EK) method. To apply this method, one adds an external energy kick to a particle in the lattice, and tracks its evolution by evolving the kicked system. The second one is the fluctuation-correlation (FC) method. The formula for calculating the probability density function (PDF) using the canonical ensemble is slightly revised and extended to the microcanonical ensemble. We show that the FC method has advantages over the EK method theoretically and technically. Theoretically, the PDF obtained by the FC method reveals the diffusion processes of the inner energy while the PDF obtained by the EK method represents that of the kick energy. The diffusion processes of the inner energy and the external energy added to the system, i.e., the kick energy, may be different quantitatively and even qualitatively depending on models. To show these facts, we study not only the equilibrium systems but also the stationary nonequilibrium systems. Examples showing that the inner energy and the kick energy may have different diffusion behavior are reported in both cases. The technical advantage enables us to study the long-time diffusion processes and thus avoids the finite-time effect.

  15. Seismic methods for resource exploration in enhanced geothermal systems

    E-Print Network [OSTI]

    Gritto, Roland; Majer, Ernest L.

    2002-01-01

    Exploration in Enhanced Geothermal Systems Roland Gritto andestablished an Enhanced Geothermal Systems Program (EGSP) toartificially created geothermal systems. The challenges in

  16. Seismic methods for resource exploration in enhanced geothermal systems

    E-Print Network [OSTI]

    Gritto, Roland; Majer, Ernest L.

    2002-01-01

    Exploration in Enhanced Geothermal Systems Roland Gritto andestablished an Enhanced Geothermal Systems Program (EGSP) toin developing Enhanced Geothermal Systems (EGS) include,

  17. A Non-Stationary Errors-in-Variables Method with Application to Mineral Exploration

    E-Print Network [OSTI]

    Braslavsky, Julio H.

    A Non-Stationary Errors-in-Variables Method with Application to Mineral Exploration K. Lau 1 J. H-cancellation in transient electromagnetic mineral exploration. Alternative methods for noise cancellation in these systems for this class of systems is proposed and applied to a problem arising in mineral exploration. An errors

  18. Monitoring CO2 intrusion and associated geochemical transformations...

    Office of Scientific and Technical Information (OSTI)

    Monitoring CO2 intrusion and associated geochemical transformations in a shallow groundwater system using complex electrical methods Citation Details In-Document Search Title:...

  19. 3-D Seismic Methods for Geothermal Reservoir Exploration and Assessment--Summary

    E-Print Network [OSTI]

    Majer, E.L.

    2003-01-01

    3-D Seismic Methods For Geothermal Reservoir Exploration andseismic imaging which will increase the efficiency of explorationexploration and are early drilling 1. Surface studies (a) Reflection seismic.

  20. Monitoring CO2 intrusion and associated geochemical transformations in a shallow groundwater system using complex electrical methods

    E-Print Network [OSTI]

    Dafflon, B.

    2013-01-01

    L. ; Lesmes, D. P. , Electrical-hydraulic relationshipsA new method of calculating electrical conductivity withwith three-dimensional electrical resistivity tomography:

  1. Imaging and Computational Methods for Exploring Sub-cellular Anatomy 

    E-Print Network [OSTI]

    Mayerich, David

    2010-01-16

    . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 II KNIFE-EDGE SCANNING MICROSCOPY : : : : : : : : : : : : : 7 2.1. Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.1.1. KESM Design... . . . . . . . . . . . . . 128 6.2.4.1. Compression Characteristics . . . . . . . . . . 128 6.2.4.2. Volume Splatting . . . . . . . . . . . . . . . . 130 6.2.4.3. Independent-Axis Iteration . . . . . . . . . . . 131 6.2.4.4. Perspective Projection . . . . . . . . . . . . . 132 6...

  2. State of Seismic Methods For Geothermal Reservoir Exploration and Assessment

    Office of Scientific and Technical Information (OSTI)

    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 NaturalDukeWakefield MunicipalTechnical Report:Speeding access toSmallTechnicalSheldon Glashow and-D Seismic Methods For

  3. PROJECT SUMMARY ITR: COLLABORATIVE RESEARCH-(ASE)-(DMC-INT): NEW METHODS FOR EXPLORATION OF DEEP-

    E-Print Network [OSTI]

    Whitcomb, Louis L.

    PROJECT SUMMARY ITR: COLLABORATIVE RESEARCH-(ASE)-(DMC-INT): NEW METHODS FOR EXPLORATION OF DEEP technology research problems which will advance the science and engineering of deep-ocean exploration-engineering as required based on field trial results. Expedition web site. Publications. Year 3: Expedition deploying

  4. Interface Induced Carbonate Mineralization: A Fundamental Geochemical...

    Office of Scientific and Technical Information (OSTI)

    Geochemical Process Relevant to Carbon Sequestration We have approached the long-standing geochemical question why anhydrous high-Mg carbonate minerals (i.e., magnesite and...

  5. Optimizing parameters for predicting the geochemical behavior...

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

    parameters for predicting the geochemical behavior and performance of discrete fracture networks in geothermal systems Optimizing parameters for predicting the geochemical...

  6. Geophysical technique for mineral exploration and discrimination based on electromagnetic methods and associated systems

    DOE Patents [OSTI]

    Zhdanov; Michael S. (Salt Lake City, UT)

    2008-01-29

    Mineral exploration needs a reliable method to distinguish between uneconomic mineral deposits and economic mineralization. A method and system includes a geophysical technique for subsurface material characterization, mineral exploration and mineral discrimination. The technique introduced in this invention detects induced polarization effects in electromagnetic data and uses remote geophysical observations to determine the parameters of an effective conductivity relaxation model using a composite analytical multi-phase model of the rock formations. The conductivity relaxation model and analytical model can be used to determine parameters related by analytical expressions to the physical characteristics of the microstructure of the rocks and minerals. These parameters are ultimately used for the discrimination of different components in underground formations, and in this way provide an ability to distinguish between uneconomic mineral deposits and zones of economic mineralization using geophysical remote sensing technology.

  7. 31 TAC, part 1, chapter 9, rule 9.11 Geophysical and Geochemical...

    Open Energy Info (EERE)

    and geochemical exploration permits in Texas. Published NA Year Signed or Took Effect 1999 Legal Citation 31 TAC 9.11 DOI Not Provided Check for DOI availability: http:...

  8. 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;...

  9. Experimental study to explore the $\\rm ^8Be$ induced nuclear reaction via the Trojan Horse Method

    E-Print Network [OSTI]

    Wen Qun-Gang; Li Cheng-Bo; Zhou Shu-Hua; Bakhadir Irgaziev; Fu Yuan-Yong; Claudio Spitaleri; Marco La Cognata; Zhou Jing; Meng Qiu-Ying; Livio Lamia; Marcello Lattuada

    2014-12-30

    To explore a possible indirect method for $\\rm ^8Be$ induced astrophysical reactions, the $\\rm ^9Be=({}^8Be+\\it n)$ cluster structure was studied via the Trojan Horse Method. It is the first time to study a super short life nucleus $\\rm ^8Be$ via the Trojan Horse Method, and it is the first time to make a valid test for $l=1$ Trojan-horse nucleus. The $\\rm ^9Be$ nucleus is assumed to have a ($\\rm {}^8Be+\\it n$) cluster structure and used as the Trojan-horse nucleus. The $\\rm ^8Be$ nucleus acts as a participant, while the neutron is a spectator to the virtual $\\rm ^8Be +{\\it d}\\rightarrow \\alpha + {}^6Li$ reaction via a suitable 3-body reaction $\\rm ^9Be +{\\it d}\\rightarrow \\alpha + {}^6Li +\\it n$. The experimental neutron momentum distribution inside $\\rm ^9Be$ was reconstructed. The agreement between experimental and theoretical momentum distribution indicates that there should be a ($\\rm {}^8Be+\\it n$) cluster structure inside $\\rm ^9Be$. Therefor the experimental study of $\\rm ^8Be$ induced reactions, for example the experimental measurement of the $\\rm ^8Be +\\alpha \\rightarrow {}^{12}C$ reaction proceeding through the Hoyle state, is possible.

  10. Advancing New 3D Seismic Interpretation Methods for Exploration and Development of Fractured Tight Gas Reservoirs

    SciTech Connect (OSTI)

    James Reeves

    2005-01-31

    In a study funded by the U.S. Department of Energy and GeoSpectrum, Inc., new P-wave 3D seismic interpretation methods to characterize fractured gas reservoirs are developed. A data driven exploratory approach is used to determine empirical relationships for reservoir properties. Fractures are predicted using seismic lineament mapping through a series of horizon and time slices in the reservoir zone. A seismic lineament is a linear feature seen in a slice through the seismic volume that has negligible vertical offset. We interpret that in regions of high seismic lineament density there is a greater likelihood of fractured reservoir. Seismic AVO attributes are developed to map brittle reservoir rock (low clay) and gas content. Brittle rocks are interpreted to be more fractured when seismic lineaments are present. The most important attribute developed in this study is the gas sensitive phase gradient (a new AVO attribute), as reservoir fractures may provide a plumbing system for both water and gas. Success is obtained when economic gas and oil discoveries are found. In a gas field previously plagued with poor drilling results, four new wells were spotted using the new methodology and recently drilled. The wells have estimated best of 12-months production indicators of 2106, 1652, 941, and 227 MCFGPD. The latter well was drilled in a region of swarming seismic lineaments but has poor gas sensitive phase gradient (AVO) and clay volume attributes. GeoSpectrum advised the unit operators that this location did not appear to have significant Lower Dakota gas before the well was drilled. The other three wells are considered good wells in this part of the basin and among the best wells in the area. These new drilling results have nearly doubled the gas production and the value of the field. The interpretation method is ready for commercialization and gas exploration and development. The new technology is adaptable to conventional lower cost 3D seismic surveys.

  11. Interface Induced Carbonate Mineralization: A Fundamental Geochemical

    Office of Scientific and Technical Information (OSTI)

    Interface Induced Carbonate Mineralization: A Fundamental Geochemical Process Relevant to Carbon Sequestration Teng, H. Henry PI, The George Washington University PI, The George...

  12. 3-D Seismic Methods for Geothermal Reservoir Exploration and Assessment--Summary

    E-Print Network [OSTI]

    Majer, E.L.

    2003-01-01

    borehole methods developed in the petroleum industry the limitation for geothermaland borehole seismic methods (Vertical Seismic Profiling (VSP), Crosswell and Single Well) to locate and quantify geothermal

  13. Book Review - Geochemical Exploration 1982 | 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 JEnvironmental JumpInformationBio-GasIllinois:Energy Authority JumpBondSprings,Facility |Book

  14. Spectral method for exploring patterns of diblock copolymers Kai Jiang a

    E-Print Network [OSTI]

    Zhang, Pingwen

    -consistent field theory Diblock copolymer melt Initial value Phases Matsen­Schick's method a b s t r a c copolymer system. Finally, by comparing with Matsen­Schick's method, we show some advantages of our method, Matsen and Schick [5] expanded the spatially varying functions in a finite set of basis functions

  15. A Five-Component Magneto-Telluric Method In Geothermal Exploration...

    Open Energy Info (EERE)

    the five standard electromagnetic components quantitatively, and in particular the vertical magnetic component. The application of this method - named the M.T.-5-E.X. - to...

  16. Resource for the exploration of regulons accurately predicted by the methods of comparative genomics

    E-Print Network [OSTI]

    Novichkov, Pavel S.

    2014-01-01

    the methods of comparative genomics. Pavel S. Novichkov 1 ,Environmental Research, Genomics:GTL program through con-a computational comparative genomics approach is coming of

  17. Novel Evaluation Methods for Complex Systems via Adaptive Sequential Exploration of Variables Interactions 

    E-Print Network [OSTI]

    Al Rashdan, Ahmad Y. M.

    2014-12-01

    The complex and coupled behavior of variables in the currently developing Generation IV reactors and Small Modular Reactors is becoming a major incentive to seek efficient design methods. This research develops and validates ...

  18. Adsorbed sulfur-gas methods for both near-surface exploration and downhole logging

    SciTech Connect (OSTI)

    Farwell, S.O.; Barinaga, C.J.; Dolenc, M.R.; Farwell, G.H.

    1986-08-01

    The use of sulfur-containing gases in petroleum exploration is supported by (1) the idea that sulfur may play a role in petroleum genesis, (2) the corresponding existence of sulfur-containing compounds in petroleum and the potential for vertical migration of the low-molecular-weight sulfur species from these reservoirs, (3) the production of H/sub 2/S by anaerobic microorganism populations that develop in the subsurface areas overlying petroleum reservoirs due to the concomitant supply of hydrocarbon nutrients, (4) the recent discovery of near-surface accumulations of pyrite and marcasite as the source of induction potential anomalies over certain fields, and (5) the strong adsorptive affinities of sulfur gases to solid surfaces, which enhance both the concentration and localization of such sulfur-expressed anomalies. During the past 3 years, numerous near-surface soil samples and well cuttings from the Utah-Wyoming Overthrust belt have been analyzed for adsorbed sulfur-gas content by two novel analytical techniques: thermal desorption/metal foil collection/flash desorption/sulfur-selective detection (TD/MFC/FD/SSD) and thermal desorption/cryogenic preconcentration/high-resolution-gas chromatography/optimized-flame photometry (TD/CP/HRGC/OFP).

  19. Oil and gas exploration system and method for detecting trace amounts of hydrocarbon gases in the atmosphere

    DOE Patents [OSTI]

    Wamsley, Paula R. (Littleton, CO); Weimer, Carl S. (Littleton, CO); Nelson, Loren D. (Evergreen, CO); O'Brien, Martin J. (Pine, CO)

    2003-01-01

    An oil and gas exploration system and method for land and airborne operations, the system and method used for locating subsurface hydrocarbon deposits based upon a remote detection of trace amounts of gases in the atmosphere. The detection of one or more target gases in the atmosphere is used to indicate a possible subsurface oil and gas deposit. By mapping a plurality of gas targets over a selected survey area, the survey area can be analyzed for measurable concentration anomalies. The anomalies are interpreted along with other exploration data to evaluate the value of an underground deposit. The system includes a differential absorption lidar (DIAL) system with a spectroscopic grade laser light and a light detector. The laser light is continuously tunable in a mid-infrared range, 2 to 5 micrometers, for choosing appropriate wavelengths to measure different gases and avoid absorption bands of interference gases. The laser light has sufficient optical energy to measure atmospheric concentrations of a gas over a path as long as a mile and greater. The detection of the gas is based on optical absorption measurements at specific wavelengths in the open atmosphere. Light that is detected using the light detector contains an absorption signature acquired as the light travels through the atmosphere from the laser source and back to the light detector. The absorption signature of each gas is processed and then analyzed to determine if a potential anomaly exists.

  20. 818 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 20, NO. 5, MAY 2012 Design Exploration of Quadrature Methods

    E-Print Network [OSTI]

    Luk, Wayne

    Design Exploration of Quadrature Methods in Option Pricing Anson H. T. Tse, Student Member, IEEE, David, such as discrete barrier, Bermudan and American options. We explore different designs of the quadrature evaluation core including optimized pipelined hardware designs in reconfigurable logic and a compute unified

  1. Methods for the survey and genetic analysis of populations

    DOE Patents [OSTI]

    Ashby, Matthew

    2003-09-02

    The present invention relates to methods for performing surveys of the genetic diversity of a population. The invention also relates to methods for performing genetic analyses of a population. The invention further relates to methods for the creation of databases comprising the survey information and the databases created by these methods. The invention also relates to methods for analyzing the information to correlate the presence of nucleic acid markers with desired parameters in a sample. These methods have application in the fields of geochemical exploration, agriculture, bioremediation, environmental analysis, clinical microbiology, forensic science and medicine.

  2. Virus transport in physically and geochemically heterogeneous subsurface porous media

    E-Print Network [OSTI]

    Ryan, Joe

    Virus transport in physically and geochemically heterogeneous subsurface porous media Subir for virus transport in physically and geochemically heterogeneous subsurface porous media is presented. The model involves solution of the advection­dispersion equation, which additionally considers virus

  3. Soil Iodine Determination in Deccan Syneclise, India: Implications for Near Surface Geochemical Hydrocarbon Prospecting

    SciTech Connect (OSTI)

    Mani, Devleena; Kumar, T. Satish; Rasheed, M. A.; Patil, D. J.; Dayal, A. M.; Rao, T. Gnaneshwar; Balaram, V.

    2011-03-15

    The association of iodine with organic matter in sedimentary basins is well documented. High iodine concentration in soils overlying oil and gas fields and areas with hydrocarbon microseepage has been observed and used as a geochemical exploratory tool for hydrocarbons in a few studies. In this study, we measure iodine concentration in soil samples collected from parts of Deccan Syneclise in the west central India to investigate its potential application as a geochemical indicator for hydrocarbons. The Deccan Syneclise consists of rifted depositional sites with Gondwana-Mesozoic sediments up to 3.5 km concealed under the Deccan Traps and is considered prospective for hydrocarbons. The concentration of iodine in soil samples is determined using ICP-MS and the values range between 1.1 and 19.3 ppm. High iodine values are characteristic of the northern part of the sampled region. The total organic carbon (TOC) content of the soil samples range between 0.1 and 1.3%. The TOC correlates poorly with the soil iodine (r{sup 2} < 1), indicating a lack of association of iodine with the surficial organic matter and the possibility of interaction between the seeping hydrocarbons and soil iodine. Further, the distribution pattern of iodine compares well with two surface geochemical indicators: the adsorbed light gaseous hydrocarbons (methane through butane) and the propane-oxidizing bacterial populations in the soil. The integration of geochemical observations show the occurrence of elevated values in the northern part of the study area, which is also coincident with the presence of exposed dyke swarms that probably serve as conduits for hydrocarbon microseepage. The corroboration of iodine with existing geological, geophysical, and geochemical data suggests its efficacy as one of the potential tool in surface geochemical exploration of hydrocarbons. Our study supports Deccan Syneclise to be promising in terms of its hydrocarbon prospects.

  4. PHYSICAL, MAGNETIC, SEDIMENTOLOGICAL, GEOCHEMICAL, ISOTOPIC AND MICROPALEONTOLOGICAL FEATURES OF RAPIDLY DEPOSITED

    E-Print Network [OSTI]

    PHYSICAL, MAGNETIC, SEDIMENTOLOGICAL, GEOCHEMICAL, ISOTOPIC AND MICROPALEONTOLOGICAL FEATURES Sediments, Québec City. Symposium preceedings: 103-108. ABSTRACT: Sedimentological, geochemical, isotopic

  5. SIMULATING TRANSPORT AND GEOCHEMICAL EVOLUTION OF ACID MINE DRAINAGE THROUGH

    E-Print Network [OSTI]

    Aubertin, Michel

    SIMULATING TRANSPORT AND GEOCHEMICAL EVOLUTION OF ACID MINE DRAINAGE THROUGH DISCRETELY FRACTURED Waste Management ABSTRACT A modelling study is performed to assess the evolution of acid mine drainage-geochemical and geo-mechanical models for predicting environmental impacts of acid mine drainage in complex mining

  6. Mechanisms and Geochemical Models of Core Formation

    E-Print Network [OSTI]

    Rubie, David C

    2015-01-01

    The formation of the Earth's core is a consequence of planetary accretion and processes in the Earth's interior. The mechanical process of planetary differentiation is likely to occur in large, if not global, magma oceans created by the collisions of planetary embryos. Metal-silicate segregation in magma oceans occurs rapidly and efficiently unlike grain scale percolation according to laboratory experiments and calculations. Geochemical models of the core formation process as planetary accretion proceeds are becoming increasingly realistic. Single stage and continuous core formation models have evolved into multi-stage models that are couple to the output of dynamical models of the giant impact phase of planet formation. The models that are most successful in matching the chemical composition of the Earth's mantle, based on experimentally-derived element partition coefficients, show that the temperature and pressure of metal-silicate equilibration must increase as a function of time and mass accreted and so m...

  7. Geochemical Signatures as a Tool for Vermiculite Provenance Determination

    SciTech Connect (OSTI)

    Karen E. Wright; Carl D. Palmer

    2008-09-01

    Thirty-eight samples of known origin (China, Libby MT, South Africa, South Carolina) and 6 vermiculite product samples of unknown origin were analyzed for major and trace elements, including rare earth elements to determine the feasibility of distinguishing the provenance of the samples based upon a geochemical signature. Probability plots suggest that two of the four groups (Libby, South Carolina) were comprised of two subgroups. Results of hierarchical cluster analysis are highly sensitive to the linkage method chosen. Ward’s method is the most useful for this data and suggests that there are five groups within the data set (South African samples, two subsets of the Libby samples, a subset of the South Carolina samples, and a second subset of the South Carolina samples combined with the China samples). Similar results were obtained using k-cluster analysis. Neither clustering method was able to distinguish samples from China from the South Carolina samples. Discriminant analysis was used on a four-category model comprised of the original four groups and on a six-category model comprised of the five categories identified from the cluster analysis but with the China samples grouped into a sixth category. The discriminant/classification model was able to distinguish all of the groups including the China samples from one another for both the four- and six-category models with 100% of the samples properly classified. The 6 unknown product samples were classified with a probability of consistency of 99%. Both discriminant models were also run with a subset of our analyte set to be consistent with the smaller Gunter et al., (2005) analyte set. Twenty vermiculite samples (nine of known origin and eleven of unknown origin) from their study were classified based on our discriminant models with the reduced set of analytes. Of the twenty samples, Gunter et al. (2005) was able to classify 16 with cluster analysis while our 4-category discriminant analysis model allowed us to classify all twenty. Of the 16 samples Gunter et al. (2005) classified using cluster analysis, all but one sample was assigned the same classification by our 4-category model. Of the nine samples with known origin, all were correctly classified. Similar results were obtained for the six-category model. Comparison of the plots of the canonical roots, the Wilks’ L, and the square Mahalanobis distances suggest the full analyte set provides better discrimination of the groups than the reduced analyte set. The six-category model is more consistent with the results of the probability plots and the cluster analysis. Discriminant analysis of geochemical data from vermiculite ore is a powerful technique for determining the ore’s provenance.

  8. Application Of Geochemical Methods In The Search For Geothermal Fields |

    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:EAandAmminex A S Jump to:Angola onAperionCommission |DispersionOf| OpenOpen

  9. SILAC-iPAC- a quantitative method for exploring genuine components of protein complexes and interactomes by parallel affinity capture

    E-Print Network [OSTI]

    Rees, Johanna S.; Lilley, Kathryn S.; Jackson, Antony P.

    2014-12-19

    ]. As an alternative, metabolic labelling of 144 J O U R N A L O F P R O T E O Me, a doubly-tagged in separate parallelimproved method for the analysis of low-affinity and/or low in interactions. We use it to clarify two examples where the nature are known... was acetonitrile + 0.1% formic acid. The linear gradient employed was 5–35% B in 60 min. Washes with 0.1% formic acid were performed in between each biological sample type to minimise carryover. The Velos was operated in data-dependent mode with a dynamic exclusion...

  10. Temporal Geochemical Variations In Volatile Emissions From Mount...

    Open Energy Info (EERE)

    Temporal Geochemical Variations In Volatile Emissions From Mount St Helens, Usa, 1980-1994 Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

  11. Microbial Physiology and Biosignature Production: Mineralogical, Morphological and Geochemical Examples 

    E-Print Network [OSTI]

    Zeng, Zhirui

    2014-11-21

    promote carbonate precipitation. However, little is known about how iron reducing bacteria induce carbonate formation, and control carbonate composition and morphology. Direct observation and geochemical modeling indicated actively metabolizing cells...

  12. Geochemical Data on Waters, Gases, Scales, and Rocks from the...

    Open Energy Info (EERE)

    Geochemical Data on Waters, Gases, Scales, and Rocks from the Dixie Valley Region, Nevada (1996-1999) Jump to: navigation, search OpenEI Reference LibraryAdd to library Report:...

  13. Copyright 2004 IEEE. Published in the Proceedings of the 36th Annual North American Power Symposium, August 9-10 2004, University of Idaho, Moscow, Idaho Abstract--This paper explores a mathematical method for

    E-Print Network [OSTI]

    Copyright 2004 IEEE. Published in the Proceedings of the 36th Annual North American Power Symposium, August 9-10 2004, University of Idaho, Moscow, Idaho Abstract-- This paper explores a mathematical method

  14. GEOCHEMICAL MODELING OF F AREA SEEPAGE BASIN COMPOSITION AND VARIABILITY

    SciTech Connect (OSTI)

    Millings, M.; Denham, M.; Looney, B.

    2012-05-08

    From the 1950s through 1989, the F Area Seepage Basins at the Savannah River Site (SRS) received low level radioactive wastes resulting from processing nuclear materials. Discharges of process wastes to the F Area Seepage Basins followed by subsequent mixing processes within the basins and eventual infiltration into the subsurface resulted in contamination of the underlying vadose zone and downgradient groundwater. For simulating contaminant behavior and subsurface transport, a quantitative understanding of the interrelated discharge-mixing-infiltration system along with the resulting chemistry of fluids entering the subsurface is needed. An example of this need emerged as the F Area Seepage Basins was selected as a key case study demonstration site for the Advanced Simulation Capability for Environmental Management (ASCEM) Program. This modeling evaluation explored the importance of the wide variability in bulk wastewater chemistry as it propagated through the basins. The results are intended to generally improve and refine the conceptualization of infiltration of chemical wastes from seepage basins receiving variable waste streams and to specifically support the ASCEM case study model for the F Area Seepage Basins. Specific goals of this work included: (1) develop a technically-based 'charge-balanced' nominal source term chemistry for water infiltrating into the subsurface during basin operations, (2) estimate the nature of short term and long term variability in infiltrating water to support scenario development for uncertainty quantification (i.e., UQ analysis), (3) identify key geochemical factors that control overall basin water chemistry and the projected variability/stability, and (4) link wastewater chemistry to the subsurface based on monitoring well data. Results from this study provide data and understanding that can be used in further modeling efforts of the F Area groundwater plume. As identified in this study, key geochemical factors affecting basin chemistry and variability included: (1) the nature or chemistry of the waste streams, (2) the open system of the basins, and (3) duration of discharge of the waste stream types. Mixing models of the archetype waste streams indicated that the overall basin system would likely remain acidic much of the time. Only an extended periods of predominantly alkaline waste discharge (e.g., >70% alkaline waste) would dramatically alter the average pH of wastewater entering the basins. Short term and long term variability were evaluated by performing multiple stepwise modeling runs to calculate the oscillation of bulk chemistry in the basins in response to short term variations in waste stream chemistry. Short term (1/2 month and 1 month) oscillations in the waste stream types only affected the chemistry in Basin 1; little variation was observed in Basin 2 and 3. As the largest basin, Basin 3 is considered the primary source to the groundwater. Modeling showed that the fluctuation in chemistry of the waste streams is not directly representative of the source term to the groundwater (i.e. Basin 3). The sequence of receiving basins and the large volume of water in Basin 3 'smooth' or nullify the short term variability in waste stream composition. As part of this study, a technically-based 'charge-balanced' nominal source term chemistry was developed for Basin 3 for a narrow range of pH (2.7 to 3.4). An example is also provided of how these data could be used to quantify uncertainty over the long term variations in waste stream chemistry and hence, Basin 3 chemistry.

  15. Remote Raman - laser induced breakdown spectroscopy (LIBS) geochemical investigation under Venus atmospheric conditions

    SciTech Connect (OSTI)

    Clegg, Sanuel M; Barefield, James E; Humphries, Seth D; Wiens, Roger C; Vaniman, D. T.; Sharma, S. K.; Misra, A. K.; Dyar, M. D.; Smrekar, S. E.

    2010-12-13

    The extreme Venus surface temperatures ({approx}740 K) and atmospheric pressures ({approx}93 atm) create a challenging environment for surface missions. Scientific investigations capable of Venus geochemical observations must be completed within hours of landing before the lander will be overcome by the harsh atmosphere. A combined remote Raman - LIBS (Laser Induced Breakdown Spectroscopy) instrument is capable of accomplishing the geochemical science goals without the risks associated with collecting samples and bringing them into the lander. Wiens et al. and Sharma et al. demonstrated that both analytical techniques can be integrated into a single instrument capable of planetary missions. The focus of this paper is to explore the capability to probe geologic samples with Raman - LIBS and demonstrate quantitative analysis under Venus surface conditions. Raman and LIBS are highly complementary analytical techniques capable of detecting both the mineralogical and geochemical composition of Venus surface materials. These techniques have the potential to profoundly increase our knowledge of the Venus surface composition, which is currently limited to geochemical data from Soviet Venera and VEGA landers that collectively suggest a surface composition that is primarily tholeiitic basaltic with some potentially more evolved compositions and, in some locations, K-rich trachyandesite. These landers were not equipped to probe the surface mineralogy as can be accomplished with Raman spectroscopy. Based on the observed compositional differences and recognizing the imprecise nature of the existing data, 15 samples were chosen to constitute a Venus-analog suite for this study, including five basalts, two each of andesites, dacites, and sulfates, and single samples of a foidite, trachyandesite, rhyolite, and basaltic trachyandesite under Venus conditions. LIBS data reduction involved generating a partial least squares (PLS) model with a subset of the rock powder standards to quantitatively determine the major elemental abundance of the remaining samples. PLS analysis suggests that the major element compositions can be determined with root mean square errors ca. 5% (absolute) for SiO{sub 2}, Al{sub 2}O{sub 3}, Fe{sub 2}O{sub 3}(total), MgO, and CaO, and ca. 2% or less for TiO{sub 2}, Cr{sub 2}O{sub 3}, MnO, K{sub 2}O, and Na{sub 2}O. Finally, the Raman experiments have been conducted under supercritical CO{sub 2} involving single-mineral and mixed-mineral samples containing talc, olivine, pyroxenes, feldspars, anhydrite, barite, and siderite. The Raman data have shown that the individual minerals can easily be identified individually or in mixtures.

  16. Geochemical Modeling of ILAW Lysimeter Water Extracts

    SciTech Connect (OSTI)

    Cantrell, Kirk J.

    2014-12-22

    Geochemical modeling results of water extracts from simulated immobilized low-activity waste (ILAW) glasses, placed in lysimeters for eight years suggest that the secondary phase reaction network developed using product consistency test (PCT) results at 90°C may need to be modified for field conditions. For sediment samples that had been collected from near the glass samples, the impact of glass corrosion could be readily observed based upon the pH of their water extracts. For unimpacted sediments the pH ranged from 7.88 to 8.11 with an average of 8.04. Sediments that had observable impacts from glass corrosion exhibited elevated pH values (as high as 9.97). For lysimeter sediment samples that appear to have been impacted by glass corrosion to the greatest extent, saturation indices determined for analcime, calcite, and chalcedony in the 1:1 water extracts were near equilibrium and were consistent with the secondary phase reaction network developed using PCT results at 90°C. Fe(OH)3(s) also appears to be essentially at equilibrium in extracts impacted by glass corrosion, but with a solubility product (log Ksp) that is approximately 2.13 units lower than that used in the secondary phase reaction network developed using PCT results at 90°C. The solubilities of TiO2(am) and ZrO2(am) also appear to be much lower than that assumed in the secondary phase reaction network developed using PCT results at 90°C. The extent that the solubility of TiO2(am) and ZrO2(am) were reduced relative to that assumed in the secondary phase reaction network developed using PCT results at 90°C could not be quantified because the concentrations of Ti and Zr in the extracts were below the estimated quantification limit. Gibbsite was consistently highly oversaturated in the extract while dawsonite was at or near equilibrium. This suggests that dawsonite might be a more suitable phase for the secondary phase reaction network than gibbsite under field conditions. This may be due to the availability of carbonate that exists in the Hanford sediments as calcite. A significant source of carbonate was not available in the PCTs and this may account for why this phase did not appear in the PCTs. Sepiolite was consistently highly undersaturated, suggesting that another phase controls the solubility of magnesium. For samples that were most impacted by the effects of glass corrosion, magnesite appears to control glass corrosion. For samples that show less impacts from glass corrosion, clinochlore-7A or saponite-Mg appears to control the magnesium concentrations. For zinc, it appears that zincite is a better candidate than Zn(OH)2-? for controlling zinc concentrations in the extracts; however, in some samples all zinc phases considered were highly oversaturated. As a result the phase that controls zinc concentrations in the lysimeter extracts remains uncertain.

  17. Geochemical Enhancement Of Enhanced Geothermal System Reservoirs: An Integrated Field And Geochemical Approach

    SciTech Connect (OSTI)

    Joseph N. Moore

    2007-12-31

    The geochemical effects of injecting fluids into geothermal reservoirs are poorly understood and may be significantly underestimated. Decreased performance of injection wells has been observed in several geothermal fields after only a few years of service, but the reasons for these declines has not been established. This study had three primary objectives: 1) determine the cause(s) of the loss of injectivity; 2) utilize these observations to constrain numerical models of water-rock interactions; and 3) develop injection strategies for mitigating and reversing the potential effects of these interactions. In this study rock samples from original and redrilled injection wells at Coso and the Salton Sea geothermal fields, CA, were used to characterize the mineral and geochemical changes that occurred as a result of injection. The study documented the presence of mineral scales and at both fields in the reservoir rocks adjacent to the injection wells. At the Salton Sea, the scales consist of alternating layers of fluorite and barite, accompanied by minor anhydrite, amorphous silica and copper arsenic sulfides. Amorphous silica and traces of calcite were deposited at Coso. The formation of silica scale at Coso provides an example of the effects of untreated (unacidified) injectate on the reservoir rocks. Scanning electron microscopy and X-ray diffractometry were used to characterize the scale deposits. The silica scale in the reservoir rocks at Coso was initially deposited as spheres of opal-A 1-2 micrometers in diameter. As the deposits matured, the spheres coalesced to form larger spheres up to 10 micrometer in diameter. Further maturation and infilling of the spaces between spheres resulted in the formation of plates and sheets that substantially reduce the original porosity and permeability of the fractures. Peripheral to the silica deposits, fluid inclusions with high water/gas ratios provide a subtle record of interactions between the injectate and reservoir rocks. In contrast, fluid inclusions trapped prior to injection are relatively gas rich. These results suggest that the rocks undergo extensive microfracturing during injection and that the composition of the fluid inclusions will be biased toward the youngest event. Interactions between the reservoir rocks and injectate were modeled using the non-isothermal reactive geochemical transport code TOUGHREACT. Changes in fluid pH, fracture porosity, fracture permeability, fluid temperature, and mineral abundances were monitored. The simulations predict that amorphous silica will precipitate primarily within a few meters of the injection well and that mineral deposition will lead to rapid declines in fracture porosity and permeability, consistent with field observations. In support of Enhanced Geothermal System development, petrologic studies of Coso well 46A-19RD were conducted to determine the regions that are most likely to fail when stimulated. These studies indicate that the most intensely brecciated and altered rocks in the zone targeted for stimulation (below 10,000 ft (3048 m)) occur between 11,200 and 11,350 ft (3414 and 3459 m). This zone is interpreted as a shear zone that initially juxtaposed quartz diorite against granodiorite. Strong pervasive alteration and veining within the brecciated quartz diorite and granodiorite suggest this shear zone was permeable in the past. This zone of weakness was subsequently exploited by a granophyre dike whose top occurs at 11,350 ft (3459 m). The dike is unaltered. We anticipate, based on analysis of the well samples that failure during stimulation will most likely occur on this shear zone.

  18. The application of seismic stratigraphic methods on exploration 3D seismic data to define a reservoir model in OPL 210, Deepwater Nigeria

    SciTech Connect (OSTI)

    Ragnhild, L.; Ventris, P. [Statoil and BP Alliance, Stavanger (Norway); Osahon, G. [Allied Energy Resources (Nig) Ltd., Lagos (Nigeria)

    1995-08-01

    OPL 210 lies in deepwater on the northwestern flank of the Niger Delta. The partners in this block are Allied Energy and The Statoil and BP Alliance. The license has a 5 year initial exploration phase and carries a 2 well commitment. At present the database comprises a 1 x 1 km grid of 2D seismic across the block, and 450 sq. km of 3D in an area of special interest. A larger 3D survey is planned for 1995. Little is known about the reservoir in the deep water, but we expect our main target to be ponded slope and basin turbidites. As such the bulk of the shelf well data available has little or no relevance to the play type likely to be encountered. Prior to drilling, seismic stratigraphy has been one of several methods used to generate a consistent predictive reservoir model. The excellent quality and high resolution of the 3D data have allowed identification and detailed description of several distinctive seismic facies. These facies are described in terms of their internal geometries and stacking patterns. The geometries are then interpreted based on a knowledge of depositional processes from analog slope settings. This enables a predictive model to be constructed for the distribution of reservoir within the observed facies. These predictions will be tested by one of the first wells drilled in the Nigerian deepwater in mid 1995.

  19. Geochemical Niches of Iron-Oxidizing Acidophiles in Acidic Coal Mine Drainage

    E-Print Network [OSTI]

    Burgos, William

    Geochemical Niches of Iron-Oxidizing Acidophiles in Acidic Coal Mine Drainage Daniel S. Jones in acid mine drainage, based on readily accessible geochemical parameters. Acid mine drainage (AMD of sediment communities at two geochemically similar acidic discharges, Upper and Lower Red Eyes in Somerset

  20. 3Geochemistry Published by AGU and the Geochemical Society

    E-Print Network [OSTI]

    Dueker, Ken

    from beneath 3 the eastern Snake River Plain 4 Huaiyu Yuan 5 Department of Earth Science, University­37 km) resides in the Montana Basin and Range province. The eastern Snake River Plain 15 (ESRP) crust for lower crustal outflow from beneath the eastern Snake River Plain, Geochem. Geophys. Geosyst., 11, XXXXXX

  1. A combined flood surface and geochemical analysis of metal

    E-Print Network [OSTI]

    Hren, Michael

    A combined flood surface and geochemical analysis of metal fluxes in a historically mined region anthropogenic sediments in a naturally metal-rich region, delin- eating zones of sediments with elevated metal®cally, the distribu- tion of metals in Fisher Creek of the New World Mining District, Montana, suggests the following

  2. Merging high resolution geophysical and geochemical surveys to...

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

    More Documents & Publications Innovative Exploration Technologies Maui Hawaii & Glass Buttes, Oregon Innovative Exploration Technologies Maui Hawaii & Glass Buttes,...

  3. Geothermal Exploration of Newberry Volcano, Oregon

    SciTech Connect (OSTI)

    Waibel, Albert F.; Frone, Zachary S.; Blackwell, David D.

    2014-12-01

    Davenport Newberry (Davenport) has completed 8 years of exploration for geothermal energy on Newberry Volcano in central Oregon. Two deep exploration test wells were drilled by Davenport on the west flank of the volcano, one intersected a hydrothermal system; the other intersected isolated fractures with no hydrothermal interconnection. Both holes have bottom-hole temperatures near or above 315°C (600°F). Subsequent to deep test drilling an expanded exploration and evaluation program was initiated. These efforts have included reprocessing existing data, executing multiple geological, geophysical, geochemical programs, deep exploration test well drilling and shallow well drilling. The efforts over the last three years have been made possible through a DOE Innovative Exploration Technology (IET) Grant 109, designed to facilitate innovative geothermal exploration techniques. The combined results of the last 8 years have led to a better understanding of the history and complexity of Newberry Volcano and improved the design and interpretation of geophysical exploration techniques with regard to blind geothermal resources in volcanic terrain.

  4. Collaborative Exploration with a Micro Aerial Vehicle: A Novel Interaction Method for Controlling a MAV with a Hand-Held Device

    E-Print Network [OSTI]

    Pitman, D.

    2012-01-01

    In order to collaboratively explore an environment with a Micro Aerial Vehicle (MAV), an operator needs a mobile interface, which can support the operator’s divided attention. To this end, we developed the Micro Aerial ...

  5. While much effort in Stirling engine development is placed on making the high-temperature region of the Stirling engine warmer, this research explores methods to lower the temperature of the cold region by

    E-Print Network [OSTI]

    While much effort in Stirling engine development is placed on making the high-temperature region of the Stirling engine warmer, this research explores methods to lower the temperature of the cold region for a Stirling engine heat exchanger with oscillatory flow. The effects of oscillating frequency and input heat

  6. Argonne Geothermal Geochemical Database v2.0

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Harto, Christopher

    2013-05-22

    A database of geochemical data from potential geothermal sources aggregated from multiple sources as of March 2010. The database contains fields for the location, depth, temperature, pH, total dissolved solids concentration, chemical composition, and date of sampling. A separate tab contains data on non-condensible gas compositions. The database contains records for over 50,000 wells, although many entries are incomplete. Current versions of source documentation are listed in the dataset.

  7. Argonne Geothermal Geochemical Database v2.0

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Harto, Christopher

    A database of geochemical data from potential geothermal sources aggregated from multiple sources as of March 2010. The database contains fields for the location, depth, temperature, pH, total dissolved solids concentration, chemical composition, and date of sampling. A separate tab contains data on non-condensible gas compositions. The database contains records for over 50,000 wells, although many entries are incomplete. Current versions of source documentation are listed in the dataset.

  8. Microbial distributions detected by an oligonucleotide microarray across geochemical zones associated with methane in marine sediments from the Ulleung Basin

    SciTech Connect (OSTI)

    Briggs, Brandon R.; Graw, Michael; Brodie, Eoin L.; Bahk, Jang-Jun; Kim, Sung-Han; Hyun, Jung-Ho; Kim, Ji-Hoon; Torres, Marta; Colwell, Frederick S.

    2013-11-01

    The biogeochemical processes that occur in marine sediments on continental margins are complex; however, from one perspective they can be considered with respect to three geochemical zones based on the presence and form of methane: sulfate–methane transition (SMTZ), gas hydrate stability zone (GHSZ), and free gas zone (FGZ). These geochemical zones may harbor distinct microbial communities that are important in biogeochemical carbon cycles. The objective of this study was to describe the microbial communities in sediments from the SMTZ, GHSZ, and FGZ using molecular ecology methods (i.e. PhyloChip microarray analysis and terminal restriction fragment length polymorphism (T-RFLP)) and examining the results in the context of non-biological parameters in the sediments. Non-metric multidimensional scaling and multi-response permutation procedures were used to determine whether microbial community compositions were significantly different in the three geochemical zones and to correlate samples with abiotic characteristics of the sediments. This analysis indicated that microbial communities from all three zones were distinct from one another and that variables such as sulfate concentration, hydrate saturation of the nearest gas hydrate layer, and depth (or unmeasured variables associated with depth e.g. temperature, pressure) were correlated to differences between the three zones. The archaeal anaerobic methanotrophs typically attributed to performing anaerobic oxidation of methane were not detected in the SMTZ; however, the marine benthic group-B, which is often found in SMTZ, was detected. Within the GHSZ, samples that were typically closer to layers that contained higher hydrate saturation had indicator sequences related to Vibrio-type taxa. These results suggest that the biogeographic patterns of microbial communities in marine sediments are distinct based on geochemical zones defined by methane.

  9. Reduced-Order Model for the Geochemical Impacts of Carbon Dioxide...

    Office of Scientific and Technical Information (OSTI)

    Reduced-Order Model for the Geochemical Impacts of Carbon Dioxide, Brine and Trace Metal Leakage into an Unconfined, Oxidizing Carbonate Aquifer, Version 2.1 Citation Details...

  10. Arsenic Mobilization and Sorption in Subsurface Environments: Experimental Studies, Geochemical Modeling, and Remediation Strategies

    E-Print Network [OSTI]

    Hafeznezami, Saeedreza

    2015-01-01

    processes of arsenic within Bangladesh sediments. Chemicalrisk and geochemical sources in Bangladesh. EnvironmentMatlab, south-eastern Bangladesh: Insight from experimental

  11. Structural Analysis for Gold Mineralization Using Remote Sensing and Geochemical Techniques in a GIS Environment: Island of Lesvos, Hellas

    SciTech Connect (OSTI)

    Rokos, D. Argialas, D. Mavrantza, R. St Seymour, K.; Vamvoukakis, C.; Kouli, M.; Lamera, S.; Paraskevas, H.; Karfakis, I.; Denes, G

    2000-12-15

    Exploration for epithermal Au has been active lately in the Aegean Sea of the eastern Mediterranean Basin, both in the islands of the Quaternary arc and in those of the back-arc region. The purpose of this study was the structural mapping and analysis for a preliminary investigation of possible epithermal gold mineralization, using remotely sensed data and techniques, structural and field data, and geochemical information, for a specific area on the Island of Lesvos. Therefore, Landsat-TM and SPOT-Pan satellite images and the Digital Elevation Model (DEM) of the study area were processed digitally using spatial filtering techniques for the enhancement and recognition of the geologically significant lineaments, as well as algebraic operations with band ratios and Principal Component Analysis (PCA), for the identification of alteration zones. Statistical rose diagrams and a SCHMIDT projection Stereo Net were generated from the lineament maps and the collected field data (dip and strike measurements of faults, joints, and veins), respectively. The derived lineament map and the band ratio images were manipulated in a GIS environment, in order to study the relation of the tectonic pattern to both the alteration zoning and the geomorphology of the volcanic field of the study area. Target areas of high interest for possible mineralization also were specified using geochemical techniques, such as X-Ray Diffraction (XRD) analysis, trace-element, and fluid-inclusion analysis. Finally, preliminary conclusions were derived about possible mineralization, the type (high or low sulfidation), and the extent of mineralization, by combining the structural information with geochemical information.

  12. Postgraduate Course / Microbial and Geochemical Oceanography in Upwelling Ecosystems / Henties Bay, March 4 -26, 2014 RGNO -I / kha First African Research Discovery Camp on "Microbial & Geochemical Oceanography in Upwelling Ecosystems", offered by SANUMAR

    E-Print Network [OSTI]

    Gilli, Adrian

    processes, energy fluxes, microbial, chemical and bioenergetic aspects of coupled N- and SPostgraduate Course / Microbial and Geochemical Oceanography in Upwelling Ecosystems / Henties Bay, March 4 - 26, 2014 RGNO - I / kha First African Research Discovery Camp on "Microbial & Geochemical

  13. Stream sediment detailed geochemical survey for Date Creek Basin, Arizona

    SciTech Connect (OSTI)

    Butz, T.R.; Tieman, D.J.; Grimes, J.G.; Bard, C.S.; Helgerson, R.N.; Pritz, P.M.

    1980-06-30

    Results of the Date Creek Basin detailed geochemical survey are reported. Field and laboratory data are reported for 239 stream sediment samples. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. A generalized geologic map of the area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed. Based on stream sediment geochemical data, significant concentrations of uranium are restricted to the Anderson Mine area. The 84th percentile concentrations of U-FL, U-NT, and U-FL/U-NT combined with low thorium/U-NT values reflect increased mobility and enrichment of uranium in the carbonate host rocks of that area. Elements characteristically associated with the uranium mineralization include lithium and arsenic. No well defined diffusion halos suggesting outliers of similar uranium mineralization were observed from the stream sediment data in other areas of the Date Creek Basin. Significant concentrations of U-FL or U-NT found outside the mine area are generally coincident with low U-FL/U-NT values and high concentrations of zirconium, titanium, and phosphorus. This suggests that the uranium is related to a resistate mineral assemblage derived from surrounding crystalline igneous and metamorphic rocks.

  14. PUBLISHED ONLINE: 19 JUNE 2011 | DOI: 10.1038/NGEO1183 Influence of subsurface biosphere on geochemical

    E-Print Network [OSTI]

    Girguis, Peter R.

    on geochemical fluxes from diffuse hydrothermal fluids Scott D. Wankel1 , Leonid N. Germanovich2 , Marvin D

  15. Geochemical and Geomechanical Effects on Wellbore Cement Fractures

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Um, Wooyong; Jung, Hun Bok; Kabilan, Senthil; Fernandez, Carlos A.; Brown, Christopher F.

    2014-12-31

    Experimental studies were conducted using batch reactors, X-ray microtomograpy (XMT), and computational fluid dynamics (CFD) simulation to determine changes in cement fracture surfaces, fluid flow pathways, and permeability with geochemical and geomechanical processes. Composite Portland cement-basalt caprock core with artificial fractures was prepared and reacted with CO2-saturated groundwater at 50°C and 10 MPa for 3 to 3.5 months under static conditions to understand the geochemical and geomechanical effects on the integrity of wellbores containing defects. Cement-basalt interface samples were subjected to mechanical stress at 2.7 MPa before the CO2 reaction. XMT provided three-dimensional (3-D) visualization of the opening and interconnectionmore »of cement fractures due to mechanical stress. After the CO2 reaction, XMT images revealed that calcium carbonate precipitation occurred extensively within the fractures in the cement matrix, but only partially along fractures located at the cement-basalt interface. The permeability calculated based on CFD simulation was in agreement with the experimentally measured permeability. The experimental results imply that the wellbore cement with fractures is likely to be healed during exposure to CO2-saturated groundwater under static conditions, whereas fractures along the cement-caprock interface are still likely to remain vulnerable to the leakage of CO2. CFD simulation for the flow of different fluids (CO2-saturated brine and supercritical CO2) using a pressure difference of 20 kPa and 200 kPa along ~2 cm-long cement fractures showed that a pressure gradient increase resulted in an increase of CO2 fluids flux by a factor of only ~3-9 because the friction of CO2 fluids on cement fracture surfaces increased with higher flow rate as well. At the same pressure gradient, the simulated flow rate was higher for supercritical CO2 than CO2-saturated brine by a factor of only ~2-3, because the viscosity of supercritical CO2 is much lower than that of CO2-saturated brine. The study suggests that in deep geological reservoirs the geochemical and geomechanical processes have coupled effects on the wellbore cement fracture evolution and fluid flow along the fracture surfaces.« less

  16. The Mississippian Leadville Limestone Exploration Play, Utah and Colorado-Exploration Techniques and Studies for Independents

    SciTech Connect (OSTI)

    Thomas Chidsey

    2008-09-30

    The Mississippian (late Kinderhookian to early Meramecian) Leadville Limestone is a shallow, open-marine, carbonate-shelf deposit. The Leadville has produced over 53 million barrels (8.4 million m{sup 3}) of oil/condensate from seven fields in the Paradox fold and fault belt of the Paradox Basin, Utah and Colorado. The environmentally sensitive, 7500-square-mile (19,400 km{sup 2}) area that makes up the fold and fault belt is relatively unexplored. Only independent producers operate and continue to hunt for Leadville oil targets in the region. The overall goal of this study is to assist these independents by (1) developing and demonstrating techniques and exploration methods never tried on the Leadville Limestone, (2) targeting areas for exploration, (3) increasing deliverability from new and old Leadville fields through detailed reservoir characterization, (4) reducing exploration costs and risk especially in environmentally sensitive areas, and (5) adding new oil discoveries and reserves. The final results will hopefully reduce exploration costs and risks, especially in environmentally sensitive areas, and add new oil discoveries and reserves. The study consists of three sections: (1) description of lithofacies and diagenetic history of the Leadville at Lisbon field, San Juan County, Utah, (2) methodology and results of a surface geochemical survey conducted over the Lisbon and Lightning Draw Southeast fields (and areas in between) and identification of oil-prone areas using epifluorescence in well cuttings from regional wells, and (3) determination of regional lithofacies, description of modern and outcrop depositional analogs, and estimation of potential oil migration directions (evaluating the middle Paleozoic hydrodynamic pressure regime and water chemistry). Leadville lithofacies at Libon field include open marine (crinoidal banks or shoals and Waulsortian-type buildups), oolitic and peloid shoals, and middle shelf. Rock units with open-marine and restricted-marine facies constitute a significant reservoir potential, having both effective porosity and permeability when dissolution of skeletal grains, followed by dolomitization, has occurred. Two major types of diagenetic dolomite are observed in the Leadville Limestone at Lisbon field: (1) tight 'early' dolomite consisting of very fine grained (<5 {micro}m), interlocking crystals that faithfully preserve depositional fabrics; and (2) porous, coarser (>100-250 {micro}m), rhombic and saddle crystals that discordantly replace limestone and earlier very fine grained dolomite. Predating or concomitant with late dolomite formation are pervasive leaching episodes that produced vugs and extensive microporosity. Most reservoir rocks within Lisbon field appear to be associated with the second, late type of dolomitization and associated leaching events. Other diagenetic products include pyrobitumen, syntaxial cement, sulfide minerals, anhydrite cement and replacement, and late macrocalcite. Fracturing (solution enlarged) and brecciation (autobrecciation) caused by hydrofracturing are widespread within Lisbon field. Sediment-filled cavities, related to karstification of the exposed Leadville, are present in the upper third of the formation. Pyrobitumen and sulfide minerals appear to coat most crystal faces of the rhombic and saddle dolomites. The fluid inclusion and mineral relationships suggest the following sequence of events: (1) dolomite precipitation, (2) anhydrite deposition, (3) anhydrite dissolution and quartz precipitation, (4) dolomite dissolution and late calcite precipitation, (5) trapping of a mobile oil phase, and (6) formation of bitumen. Fluid inclusions in calcite and dolomite display variable liquid to vapor ratios suggesting reequilibration at elevated temperatures (50 C). Fluid salinities exceed 10 weight percent NaCl equivalent. Low ice melting temperatures of quartz- and calcite-hosted inclusions suggest chemically complex Ca-Mg-bearing brines associated with evaporite deposits were responsible for mineral deposition. The overall conclusion from th

  17. The hydrogeologic-geochemical model of Cerro Prieto revisited

    SciTech Connect (OSTI)

    Lippmann, M.J.; Halfman, S.E.; Truesdell, A.H.; Manon M., A.

    1989-01-01

    As the exploitation of the Cerro Prieto, Mexico, geothermal field continues, there is increasing evidence that the hydrogeologic model developed by Halfman et al. (1984, 1986) presents the basic features controlling the movement of geothermal fluids in the system. At the present time the total installed capacity at Cerro Prieto is 620 MWe requiring the production of more than 10,500 tonnes/hr of a brine-steam mixture. This significant rate of fluid production has resulted in changes in reservoir thermodynamic conditions and in the chemistry of the produced fluids. After reviewing the hydrogeologic-geochemical model of Cerro Prieto, some of the changes observed in the field due to its exploitation are discussed and interpreted on the basis of the model. 21 refs., 11 figs., 1 tab.

  18. Exploring the Raft River geothermal area, Idaho, with the dc...

    Open Energy Info (EERE)

    the dc resistivity method (Abstract) Abstract GEOTHERMAL ENERGY; GEOTHERMAL FIELDS; ELECTRICAL SURVEYS; IDAHO; GEOTHERMAL EXPLORATION; RAFT RIVER VALLEY; ELECTRIC CONDUCTIVITY;...

  19. A Geological and Hydro-Geochemical Study of the Animas Geothermal...

    Open Energy Info (EERE)

    A Geological and Hydro-Geochemical Study of the Animas Geothermal Area, Hidalgo County, New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal...

  20. The dynamics of oceanic transform faults : constraints from geophysical, geochemical, and geodynamical modeling

    E-Print Network [OSTI]

    Gregg, Patricia Michelle Marie

    2008-01-01

    Segmentation and crustal accretion at oceanic transform fault systems are investigated through a combination of geophysical data analysis and geodynamical and geochemical modeling. Chapter 1 examines the effect of fault ...

  1. Reduced-Order Model for the Geochemical Impacts of Carbon Dioxide...

    Office of Scientific and Technical Information (OSTI)

    Reduced-Order Model for the Geochemical Impacts of Carbon Dioxide, Brine and Trace Metal Leakage into an Unconfined, Oxidizing Carbonate Aquifer, Version 2.1 Bacon, Diana H. carbon...

  2. Geochemical heterogeneity in the Hawaiian plume : constraints from Hawaiian volcanoes and Emperor seamounts

    E-Print Network [OSTI]

    Huang, Shichun

    2005-01-01

    The 6000-km long, age-progressive linear Hawaii-Emperor Chain is one of the best defined hotspot tracks. This hotspot track plays an important role in the plume hypothesis. In this research, geochemical data on the ...

  3. Migratory patterns of American shad (Alosa sapidissima) revealed by natural geochemical tags in otoliths

    E-Print Network [OSTI]

    Walther, Benjamin (Benjamin Dwaine)

    2007-01-01

    Geochemical signatures in the otoliths of diadromous fishes may allow for retrospective analyses of natal origins. In an assessment of river-specific signatures in American shad (Alosa sapidissima), an anadromous clupeid ...

  4. Up-Scaling Geochemical Reaction Rates Accompanying Acidic CO2-Saturated Brine Flow in Sandstone Aquifers

    E-Print Network [OSTI]

    New York at Stoney Brook, State University of

    1 Up-Scaling Geochemical Reaction Rates Accompanying Acidic CO2-Saturated Brine Flow in Sandstone in the pore networks corresponding to three different sandstones. The simulations were used to study up

  5. March 16, 2010March 16, 2010 Introduction to Seismic ExplorationIntroduction to Seismic Exploration

    E-Print Network [OSTI]

    Ito, Garrett

    3/15/2010 1 GG450GG450 March 16, 2010March 16, 2010 Introduction to Seismic ExplorationIntroduction to Seismic Exploration andand Elementary Digital AnalysisElementary Digital Analysis Some of the material IIntroduction AsAs more than 90% of geophysicalmore than 90% of geophysical exploration utilizes seismic methods

  6. Geochemical Monitoring Considerations for the FutureGen 2.0 Project

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Amonette, James E.; Johnson, Timothy A.; Spencer, Clayton F.; Zhong, Lirong; Szecsody, James E.; Vermeul, Vince R.

    2014-12-31

    Geochemical monitoring is an essential component of a suite of monitoring technologies designed to evaluate CO2 mass balance and detect possible loss of containment at the FutureGen 2.0 geologic sequestration site near Jacksonville, IL. This presentation gives an overview of the potential geochemical approaches and tracer technologies that were considered, and describes the evaluation process by which the most cost-effective and robust of these were selected for implementation

  7. New stratigraphic technologies in exploration/exploitation

    SciTech Connect (OSTI)

    Scott, R.W.; Lane, H.R.

    1995-09-01

    With the demand for increased accuracy and precision in the interpretation of seismic sections for the prediction of reservoirs and traps, traditional paleontologic and new non-paleontologic stratigraphic data have assumed a greater role in exploration/exploitation. Strata bounded by sequence boundaries can be dated have assumed a greater role in exploration/exploitation. Strata bounded by sequence boundaries can be dated precisely by the graphic correlation technique. For example, Arabian Cretaceous reservoirs pinch out by facies change and diagenesis into coeval strata. But Pliocene sands in the Gulf Coast are truncated by regional unconformities accentuated by salt dome movement. In this Plio-Pleistocene section high precision chronostratigraphy is achieved by the integration of paleontological and geochemical data. Detailed biostratigraphic analysis of many sections of Mississippian carbonates along the eastern side of the Transcontinental Arch allows for the recognition of four unconformity-bounded units (biothems of Lane and others, 1994). These biotherms have been traced form Illinois to New Mexico and are not easily detected in the subsurface by using seismic or electric log technology because of the rather uniform carbonate lithologies composing the entire Mississippian in the region. Mississippian hydrocarbon production in western Kansas can be shown to be associated with these intra-Mississippian carbonate-on-carbonate unconformities that are easily detected biostratigraphically.

  8. Geochemical characteristics of bitumens and seeps from Tanzania

    SciTech Connect (OSTI)

    Mpanju, F. ); Philp, P. )

    1991-03-01

    A number of bitumen extracts from prospective source rocks and oil seeps of potential oil-producing areas in Tanzania have been characterized by a variety of geochemical techniques. The data obtained from this study have provided additional insight into the source rock potential of these areas. However, in this paper it is proposed to discuss in detail the results from two of the more unusual samples in this region, namely Wingayongo and Pemba. The Wingayongo bitumens isolated from an exposed Neocomian-aged sandstone, possibly a paleoreservoir, are almost totally devoid of n-alkanes and steranes and dominated by hopane-type biomarkers with the so-called immature {beta}{beta}-stereochemistry at the C{sub 17} and C{sub 21} positions. There is no typical evidence of biodegradation having occurred leading to the proposal of an unusual source material or maturity history for this sample. The Pemba seep samples were also characterized by relatively high concentrations of hopanes with the immature stereochemistry at the C{sub 17} and C{sub 21} positions and a virtual absence of n-alkanes and steranes. The aromatic fractions contained relatively high concentrations of hopanic acids, with the immature stereochemistry at C{sub 17} and C{sub 21} positions and a virtual absence of n-alkanes and steranes. The aromatic fractions contained relatively high concentrations of hopanic acids, with the immature stereochemistry at C{sub 17} and C{sub 21}. On the basis of these data, it is proposed that the seeps in the Pemba region are not true oil seeps. Rather they are formed as a result of extremely high levels of bacterial activity with the bacteria utilizing natural gas in the region as the substrate. The net result is a material referred to in other areas of the world as paraffin dirt whose occurrence results from extensive microbial activity in the region and not directly from seepage of products having a thermal origin.

  9. Natural bacterial communities serve as quantitative geochemical biosensors

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Smith, Mark B.; Rocha, Andrea M.; Smillie, Chris S.; Olesen, Scott W.; Paradis, Charles; Wu, Liyou; Campbell, James H.; Fortney, Julian L.; Mehlhorn, Tonia L.; Lowe, Kenneth A.; et al

    2015-05-12

    Biological sensors can be engineered to measure a wide range of environmental conditions. Here we show that statistical analysis of DNA from natural microbial communities can be used to accurately identify environmental contaminants, including uranium and nitrate at a nuclear waste site. In addition to contamination, sequence data from the 16S rRNA gene alone can quantitatively predict a rich catalogue of 26 geochemical features collected from 93 wells with highly differing geochemistry characteristics. We extend this approach to identify sites contaminated with hydrocarbons from the Deepwater Horizon oil spill, finding that altered bacterial communities encode a memory of prior contamination,more »even after the contaminants themselves have been fully degraded. We show that the bacterial strains that are most useful for detecting oil and uranium are known to interact with these substrates, indicating that this statistical approach uncovers ecologically meaningful interactions consistent with previous experimental observations. Future efforts should focus on evaluating the geographical generalizability of these associations. Taken as a whole, these results indicate that ubiquitous, natural bacterial communities can be used as in situ environmental sensors that respond to and capture perturbations caused by human impacts. These in situ biosensors rely on environmental selection rather than directed engineering, and so this approach could be rapidly deployed and scaled as sequencing technology continues to become faster, simpler, and less expensive. Here we show that DNA from natural bacterial communities can be used as a quantitative biosensor to accurately distinguish unpolluted sites from those contaminated with uranium, nitrate, or oil. These results indicate that bacterial communities can be used as environmental sensors that respond to and capture perturbations caused by human impacts.« less

  10. Geothermal Exploration At Akutan, Alaska- Favorable Indications...

    Open Energy Info (EERE)

    program included practical access assessments, a geologic reconnaissance field study, soil and soil gas geochemical surveys, a satellite remote sensing study, a review of...

  11. Exploring the Geochemical Fingerprints of an Oceanic Anoxic Event During the Late Cretaceous: the Global and Biological Implications

    E-Print Network [OSTI]

    Owens, Jeremiah David

    2013-01-01

    Turonian correlation and sequence stratigraphy of the Chalkstratigraphy and depositional oxia through Cenomanian/Turonian boundary sequences (stratigraphy and depositional oxia through Cenomanian/Turonian boundary sequences (

  12. Exploring the Geochemical Fingerprints of an Oceanic Anoxic Event During the Late Cretaceous: the Global and Biological Implications

    E-Print Network [OSTI]

    Owens, Jeremiah David

    2013-01-01

    Chemistry, Microbiology and Diagenesis 113, 67–88. Canfield,influences on the diagenesis of Beecher’s Trilobite Bed andinfluences on the diagenesis of Beecher’s Trilobite Bed and

  13. Roadmap for Venus Exploration Roadmap for Venus Exploration

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Roadmap for Venus Exploration May 2014 #12;ii Roadmap for Venus Exploration At the VEXAG meeting in November 2013, it was resolved and Investigations for Venus Exploration (GOI), (2) develop a Roadmap for Venus exploration

  14. Hazard assessment in geothermal exploration: The case of Mt. Parker, Southern Philippines

    SciTech Connect (OSTI)

    Delfin, F.G. Jr.; Salonga, N.D.; Bayon, F.E.B.

    1996-12-31

    Hazard assessment of the Mt. Parker geothermal prospect, conducted in parallel with the surface exploration from 1992 to 1994, was undertaken to determine the long-term suitability of the prospect for development. By comparison with other acidic magmatic-hydrothermal systems in the Philippines, the geochemical data indicated minimal input of acidic magmatic fluids into Mt. Parker`s hydrothermal system. This system was regarded to be a neutral-pH and high-enthalpy chloride reservoir with temperature of at least 200-250{degrees}C. These favorable geochemical indications contrasted sharply with the C-14 and volcanological data indicating a shallow magmatic body with a potential for future eruption. This hazard led PNOC EDC to discontinue the survey and abandon the prospect by late 1994. On September 6, 1995, a flashflood of non-volcanic origin from the caldera lake killed nearly 100 people on the volcano`s northwestern flank.

  15. Progress Report, December 2010: Improved Site Characterization And Storage Prediction Through Stochastic Inversion Of Time-Lapse Geophysical And Geochemical Data

    SciTech Connect (OSTI)

    Ramirez, A; Mcnab, W; Carle, S; Hao, Y; White, D; Johnson, J

    2010-12-17

    Over the last project six months, our project activities have concentrated on three areas: (1) performing a stochastic inversion of pattern 16 seismic data to deduce reservoir permeability, (2) development of the geochemical inversion strategy and implementation of associated software, and (3) completing the software implementation of TProGS and the geostatistical analysis that provides the information needed when using the software to produce realizations of the Midale reservoir. The report partially the following deliverables: D2: Model development: MCMC tool (synthetic fluid chemistry data); deliverable completed. D4: Model development/verification: MCMC tool (TProGS, field seismic/chemistry data) work product; deliverable requirements partially fulfilled. D5: Field-based single-pattern simulations work product; deliverable requirements partially fulfilled. When completed, our completed stochastic inversion tool will explicitly integrate reactive transport modeling, facies-based geostatistical methods, and a novel stochastic inversion technique to optimize agreement between observed and predicted storage performance. Such optimization will be accomplished through stepwise refinement of: (1) the reservoir model - principally its permeability magnitude and heterogeneity - and (2) geochemical parameters - primarily key mineral volume fractions and kinetic data. We anticipate that these refinements will facilitate significantly improved history matching and forward modeling of CO{sub 2} storage. Our tool uses the Markov Chain Monte Carlo (MCMC) methodology. Deliverable D1, previously submitted as a report titled ''Development of a Stochastic Inversion Tool To Optimize Agreement Between The Observed And Predicted Seismic Response To CO{sub 2} Injection/Migration in the Weyburn-Midale Project'' (Ramirez et al., 2009), described the stochastic inversion approach that will identify reservoir models that optimize agreement between the observed and predicted seismic response. The software that implements this approach has been completed, tested, and used to process seismic data from pattern 16. A previously submitted report titled ''Model verification: synthetic single pattern simulations using seismic reflection data'', Ramirez et al. 2010, partially fulfilled deliverable D3 by summarizing verification activities that evaluate the performance of the seismic software and its ability to recover reservoir model permeabilities using synthetic seismic reflection data. A future progress report will similarly describe summarizing verification activities of the geochemical inversion software, thereby completing deliverable D3. This document includes a chapter that shows and discusses permeability models produced by seismic inversion that used seismic data from pattern 16 in Phase 1A. It partially fulfills deliverable D5: Field-based single-pattern simulations work product. The D5 work product is supposed to summarize the results of applying NUFT/MCMC to refine the reservoir model and geochemical parameters by optimizing observation/prediction agreement for the seismic/geochemical response to CO{sub 2} injection/migration within a single pattern of Phase 1A/1B. A future progress report will show inversion results for the same pattern using geochemical data, thereby completing deliverable D5. This document also contains a chapter that fulfills deliverable D2: Model development: MCMC tool (synthetic fluid chemistry data). The chapter will summarize model development activities required to facilitate application of NUFT/MCMC to optimize agreement between the observed and predicted geochemical response to CO{sub 2} injection/migration. Lastly, this document also contains a chapter that partially fulfills deliverable D4: Model development/verification: MCMC tool (TProGS, field seismic/chemistry data) work product. This work product is supposed to summarize model development activities required for (1) application of TProGS to Weyburn, (2) use of TProGS within the MCMC tool, and (3) application of the MCMC tool to address field seismic and g

  16. Characterizing Microbial Community and Geochemical Dynamics at Hydrothermal Vents Using Osmotically Driven Continuous Fluid Samplers

    SciTech Connect (OSTI)

    Robidart, Julie C.; Callister, Stephen J.; Song, Peng F.; Nicora, Carrie D.; Wheat, Charles G.; Girguis, Peter R.

    2013-05-07

    Microbes play a key role in mediating all aquatic biogeochemical cycles, and ongoing efforts are aimed at better understanding the relationships between microbial phylogenetic and physiological diversity, and habitat physical and chemical characteristics. Establishing such relationships is facilitated by sampling and studying microbiology and geochemistry at the appropriate spatial and temporal scales, to access information on the past and current environmental state that contributes to observed microbial abundances and activities. A modest number of sampling systems exist to date, few of which can be used in remote, harsh environments such as hydrothermal vents, where the ephemeral nature of venting underscores the necessity for higher resolution sampling. We have developed a robust, continuous fluid sampling system for co-registered microbial and biogeochemical analyses. The osmosis-powered bio-osmosampling system (BOSS) use no electricity, collects fluids with daily resolution or better, can be deployed in harsh, inaccessible environments and can sample fluids continuously for up to five years. Here we present a series of tests to examine DNA, RNA and protein stability over time, as well as material compatability, via lab experiments. We also conducted two field deployments at deep-sea hydrothermal vents to assess changes in microbial diversity and protein expression as a function of the physico-chemical environment. Our data reveal significant changes in microbial community composition co-occurring with relatively modest changes in the geochemistry. These data additionally provide new insights into the distribution of an enigmatic sulfur oxidizing symbiont in its free-living state. Data from the second deployment reveal differences in the representation of peptides over time, underscoring the utility of the BOSS in meta-proteomic studies. In concert, these data demonstrate the efficacy of this approach, and illustrate the value of using this method to study microbial and geochemical phenomena.

  17. Geochemical Evidence of the Seasonality, Affinity and Pigmenation of Solenopora jurassica

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Barden, Holly E.; Behnsen, Julia; Bergmann, Uwe; Leng, Melanie J.; Manning, Phillip L.; Withers, Philip J.; Wogelius, Roy A.; van Dongen, Bart E.; Silva, Lucas C. R.

    2015-09-14

    Solenopora jurassica is a fossil calcareous alga that functioned as an important reef-building organism during the Palaeozoic. It is of significant palaeobiological interest due to its distinctive but poorly understood pink and white banding. Though widely accepted as an alga there is still debate over its taxonomic affinity, with recent work arguing that it should be reclassified as a chaetetid sponge. The banding is thought to be seasonal, but there is no conclusive evidence for this. Other recent work has, however demonstrated the presence of a unique organic boron-containing pink/red pigment in the pink bands of S. jurassica. We presentmore »new geochemical evidence concerning the seasonality and pigmentation of S. jurassica. Seasonal growth cycles are demonstrated by X-ray radiography, which shows differences in calcite density, and by varying ?13C composition of the bands. Temperature variation in the bands is difficult to constrain accurately due to conflicting patterns arising from Mg/Ca molar ratios and ?18O data. Fluctuating chlorine levels indicate increased salinity in the white bands, when combined with the isotope data this suggests more suggestive of marine conditions during formation of the white band and a greater freshwater component (lower chlorinity) during pink band precipitation (?18O). Increased photosynthesis is inferred within the pink bands in comparison to the white, based on ?13C. Pyrolysis Gas Chromatography Mass Spectrometry (Py-GCMS) and Fourier Transform Infrared Spectroscopy (FTIR) show the presence of tetramethyl pyrrole, protein moieties and carboxylic acid groups, suggestive of the presence of the red algal pigment phycoerythrin. This is consistent with the pink colour of S. jurassica. As phycoerythrin is only known to occur in algae and cyanobacteria, and no biomarker evidence of bacteria or sponges was detected we conclude S. jurassica is most likely an alga. Pigment analysis may be a reliable classification method for fossil algae.« less

  18. Merging High Resolution Geophysical and Geochemical Surveys to Reduce

    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: Energy Resources Jump1.2619821°,Energy Information| Open EnergyExploration

  19. Preclosure Monitoring and Performance Confirmation at Yucca Mountain: Applicability of Geophysical, Geohydrological, and Geochemical Methods

    E-Print Network [OSTI]

    Tsang, C.F.

    2010-01-01

    processes (e.g. , heat-pipe phenomena). Differences betweenity of such inflows. Also, heat pipe effects caused by the

  20. Preclosure Monitoring and Performance Confirmation at Yucca Mountain: Applicability of Geophysical, Geohydrological, and Geochemical Methods

    E-Print Network [OSTI]

    Tsang, C.F.

    2010-01-01

    of repository construction and waste emplacement. Datato repository construction and waste isolation. Such experi­stage of repository construction and waste emplacement. It

  1. A GEOCHEMICAL MODULE FOR "AMDTreat" TO COMPUTE CAUSTIC QUANTITY, EFFLUENT QUALITY, AND SLUDGE VOLUME1

    E-Print Network [OSTI]

    of sludge produced by the treatment, a titration simulation is being developed using the geochemical program The AMDTreat computer program ( . Treatment with caustic chemicals typically is used to increase pH (6 to 8), whereas active manganese removal requires treatment to alkaline pH (~10). The treatment

  2. Capillary geochemistry in non-saturated zone of soils. Water content and geochemical signatures

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Capillary geochemistry in non-saturated zone of soils. Water content and geochemical signatures change. The volumetric capillary water content of the soil at high suction can be calculated corresponds to a decreasing internal pressure of the water, which modifies its thermodynamic properties

  3. Methane-related authigenic carbonates from the Black Sea: geochemical characterisation and relation to seeping fluids

    E-Print Network [OSTI]

    Mazzini, Adriano

    Methane-related authigenic carbonates from the Black Sea: geochemical characterisation and relation of carbon derived from the anaerobic oxidation of methane (AOM), the oxidation of organic matter and from sea water. Methane is the dominant component among other hydrocarbon gases in these sediments. Its

  4. Z .Chemical Geology 145 1998 153159 z /Geochemical Earth Reference Model GERM

    E-Print Network [OSTI]

    Langmuir, Charles H.

    Z .Chemical Geology 145 1998 153­159 z /Geochemical Earth Reference Model GERM : description on a chemical characterization of the Earth, its major reservoirs, and the fluxes between them. The Z .GERM chemical Z . Z .reservoirs of the present-day Earth, from core to atmosphere; 2 present-day fluxes between

  5. Reservoir theory for studying the geochemical evolution of soils Simon Marius Mudd1

    E-Print Network [OSTI]

    Mudd, Simon Marius

    Reservoir theory for studying the geochemical evolution of soils Simon Marius Mudd1 and Kyungsoo environment over a fixed amount of time. In natural soils, minerals enter, are mixed within, and leave the soil via erosion and dissolution/leaching over the course of soil formation. The key to correctly

  6. Paper #194973 GEOCHEMICAL CHARACTERIZATION OF THE RESERVOIR HOSTING SHALE-GAS AND OIL in

    E-Print Network [OSTI]

    Hattori, Kéiko H.

    Paper #194973 GEOCHEMICAL CHARACTERIZATION OF THE RESERVOIR HOSTING SHALE-GAS AND OIL a reservoir for shale-gas and oil. We examined organic-rich black shale, known as Macasty shale, of Upper SHALE-GAS AND OIL in THE SUBSURFACE OF ANTICOSTI ISLAND, CANADA Key Words: Provenance, Anticosti Island

  7. The "calamine" nonsulfide ZnPb deposits of Belgium: Petrographical, mineralogical and geochemical characterization

    E-Print Network [OSTI]

    Boni, Maria

    The "calamine" nonsulfide Zn­Pb deposits of Belgium: Petrographical, mineralogical and geochemical, Germany c Geological Survey of Belgium, 13 Rue Jenner, B-1000 Brussels, Belgium d Geologisch the historical basis for the zinc mining and smelting industry in Europe. The zinc ores were called "calamines

  8. Evolution of the Namaqua-Natal Belt, southern Africa A geochronological and isotope geochemical review

    E-Print Network [OSTI]

    Patterson, William P.

    Evolution of the Namaqua-Natal Belt, southern Africa ­ A geochronological and isotope geochemical Available online 10 July 2006 Abstract Juvenile crust formation within the Namaqua-Natal Belt occurred of the Mesoproterozoic evolution of the Namaqua-Natal Belt. Graben formation with associated extrusion of lavas

  9. exploration, Los Alamos Rover

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

    NASA agreements advance Mars exploration, Los Alamos Rover instrument a key component June 17, 2015 SuperCam's body to be built at Los Alamos and the mast in France LOS ALAMOS,...

  10. Alum Innovative Exploration

    Broader source: Energy.gov [DOE]

    DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Reduce the high level of risk during the early stages of geothermal project development by conducting a multi-faceted and innovative exploration and drilling program at Alum. Determine the combination of techniques that are most useful and cost-effective in identifying the geothermal resource through a detailed, post-project evaluation of the exploration and drilling program.

  11. Tephra stratigraphy and geochemistry from three Icelandic lake cores: a new method for determining source volcano of tepra layers 

    E-Print Network [OSTI]

    Jagan, Anna

    2010-01-01

    At present there is no consistent method for the identification of source volcanoes for a tephra layer found in a stratigraphy. This has led to several studies misidentifying source volcanoes. Geochemical analysis of the ...

  12. Goldschmidt Conference Abstracts 2008A1108 Geochemical characteristics of REE

    E-Print Network [OSTI]

    Zreda, Marek

    Institute of Yunnan Province Tested with ICP-MS method, samples include fault tectonites, ore-hosted rocks - strongly depleted Ce ­ enriched Eu and heavy REE means the superposed ore- forming process of biotite-917) and the Major Discipline for KUST (2008). The theoretical basis for ACE, an age calculation engine

  13. Oil and Gas Exploration

    E-Print Network [OSTI]

    Tingley, Joseph V.

    , oil and gas, and geothermal activities and accomplishments in Nevada: production statistics Products 23. Sloan dolomite quarry 24. Weiser gypsum quarry Oil Fields 1. Blackburn field 2. North WillowMetals Industrial Minerals Oil and Gas Geothermal Exploration Development Mining Processing Nevada

  14. Exploring the Higgs portal

    E-Print Network [OSTI]

    Christoph Englert; Tilman Plehn; Dirk Zerwas; Peter M. Zerwas

    2011-08-19

    We study the Higgs portal from the Standard-Model to a hidden sector and examine which elements of the extended theory can be discovered and explored at the LHC. Our model includes two Higgs bosons covering parameter regions where the LHC will be sensitive to two, one or none of the particles at typical discovery luminosities for Standard Model Higgs production.

  15. Exploring Functional Mellin Transforms

    E-Print Network [OSTI]

    J. LaChapelle

    2015-01-08

    We define functional Mellin transforms within a scheme for functional integration proposed in [1]. Functional Mellin transforms can be used to define functional traces, logarithms, and determinants. The associated functional integrals are useful tools for probing function spaces in general and $C^\\ast$-algebras in particular. Several interesting aspects are explored.

  16. Exploring Civil and Environmental

    E-Print Network [OSTI]

    1 CEE 100 Exploring Civil and Environmental Engineering #12;CEE 100 Schedule--Winter 2010 https Lundquist Hydrology, Water Resources, and Environmental Fluid Mechanics January 20 Pedro Arduino Engineering and Mechanics February 10 Dave Stensel Environmental Engineering and Science February 17 Mark

  17. Geochemical evidence for meteoric diagenesis and cryptic surfaces of subaerial exposure in Upper Ordovician peritidal carbonates from

    E-Print Network [OSTI]

    Heim, Noel A.

    of subaerial exposure in marine strata. Sequence stratigraphy has provided a useful model for integrating sedi developed. Subaerial exposure, sequence stratigraphy and geochemistry Sequence stratigraphy predicts section previously studied using a sequence stratigraphic approach. Specifically, geochemical results

  18. Origin of geochemical heterogeneity in the mantle : constraints from volcanism associated with Hawaiian and Kerguelen mantle plumes

    E-Print Network [OSTI]

    Xu, Guangping

    2007-01-01

    Lavas derived from long-lived mantle plumes provide important information of mantle compositions and the processes that created the geochemical heterogeneity within the mantle. Kerguelen and Hawaii are two long-lived mantle ...

  19. Geochemical and isotopic results for groundwater, drainage waters, snowmelt, permafrost, precipitation in Barrow, Alaska (USA) 2012-2013

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Wilson, Cathy; Newman, Brent; Heikoop, Jeff

    2012-07-18

    Data include a large suite of analytes (geochemical and isotopic) for samples collected in Barrow, Alaska (2012-2013). Sample types are indicated, and include soil pore waters, drainage waters, snowmelt, precipitation, and permafrost samples.

  20. Geochemical and isotopic results for groundwater, drainage waters, snowmelt, permafrost, precipitation in Barrow, Alaska (USA) 2012-2013

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Wilson, Cathy; Newman, Brent; Heikoop, Jeff

    Data include a large suite of analytes (geochemical and isotopic) for samples collected in Barrow, Alaska (2012-2013). Sample types are indicated, and include soil pore waters, drainage waters, snowmelt, precipitation, and permafrost samples.

  1. TOURGHREACT: A Simulation Program for Non-isothermal Multiphase Reactive Geochemical Transport in Variably Saturated Geologic Media

    E-Print Network [OSTI]

    Xu, Tianfu; Sonnenthal, Eric; Spycher, Nicolas; Pruess, Karsten

    2004-01-01

    chemical modeling at the Soultz-sous- Foręts HDR reservoir (Geochemical modeling of the Soultz-sous-Foręts Hot Dry Rocken géothermie profonde (Soultz-sous-Foręts, Bas Rhin,

  2. Proceedings of the second workshop on hydrologic and geochemical monitoring in the Long Valley Caldera

    SciTech Connect (OSTI)

    Sorey, M.L.; Farrar, C.D.; Wollenberg, H.A. (eds.)

    1986-12-01

    A workshop was held to review the results of hydrologic and geochemical monitoring and scientific drilling in the Long Valley caldera. Such monitoring is being done to detect changes in the hydrothermal system induced by ongoing magmatic and techonic processes. Data from a 2400-ft deep core hole completed in June 1986 were presented at the 1986 workshop and participants discussed the need and rationale for siting locations for future scientific drilling in the caldera.

  3. Exploration for deep coal

    SciTech Connect (OSTI)

    NONE

    2008-12-15

    The most important factor in safe mining is the quality of the roof. The article explains how the Rosebud Mining Co. conducts drilling and exploration in 11 deep coal mine throughout Pennsylvania and Ohio. Rosebud uses two Atlas Copco CS10 core drilling rigs mounted on 4-wheel drive trucks. The article first appeared in Atlas Copco's in-house magazine, Deep Hole Driller. 3 photos.

  4. Thermodynamic Data for Geochemical Modeling of Carbonate Reactions Associated with CO2 Sequestration – Literature Review

    SciTech Connect (OSTI)

    Krupka, Kenneth M.; Cantrell, Kirk J.; McGrail, B. Peter

    2010-09-28

    Permanent storage of anthropogenic CO2 in deep geologic formations is being considered as a means to reduce the concentration of atmospheric CO2 and thus its contribution to global climate change. To ensure safe and effective geologic sequestration, numerous studies have been completed of the extent to which the CO2 migrates within geologic formations and what physical and geochemical changes occur in these formations when CO2 is injected. Sophisticated, computerized reservoir simulations are used as part of field site and laboratory CO2 sequestration studies. These simulations use coupled multiphase flow-reactive chemical transport models and/or standalone (i.e., no coupled fluid transport) geochemical models to calculate gas solubility, aqueous complexation, reduction/oxidation (redox), and/or mineral solubility reactions related to CO2 injection and sequestration. Thermodynamic data are critical inputs to modeling geochemical processes. The adequacy of thermodynamic data for carbonate compounds has been identified as an important data requirement for the successful application of these geochemical reaction models to CO2 sequestration. A review of thermodynamic data for CO2 gas and carbonate aqueous species and minerals present in published data compilations and databases used in geochemical reaction models was therefore completed. Published studies that describe mineralogical analyses from CO2 sequestration field and natural analogue sites and laboratory studies were also reviewed to identify specific carbonate minerals that are important to CO2 sequestration reactions and therefore require thermodynamic data. The results of the literature review indicated that an extensive thermodynamic database exists for CO2 and CH4 gases, carbonate aqueous species, and carbonate minerals. Values of ?fG298° and/or log Kr,298° are available for essentially all of these compounds. However, log Kr,T° or heat capacity values at temperatures above 298 K exist for less than approximately one-third of these compounds. Because the temperatures of host formations that will be used for CO2 injection and sequestration will be at tempera¬tures in the range of 50şC to 100şC or greater, the lack of high temperature thermodynamic values for key carbonate compounds especially minerals, will impact the accuracy of some modeling calculations.

  5. Geochemical Data Package for Performance Assessment Calculations Related to the Savannah River Site

    SciTech Connect (OSTI)

    Kaplan, D

    2006-02-28

    The Savannah River Site disposes of certain types of radioactive waste within subsurface-engineered facilities. One of the tools used to establish the capacity of a given site to safely store radioactive waste (i.e., that a site does not exceed its Waste Acceptance Criteria) is the Performance Assessment (PA). The objective of this document is to provide the geochemical values for the PA calculations. This work is being conducted as part of the on-going maintenance program that permits the PA to periodically update existing calculations when new data becomes available. Because application of values without full understanding of their original purpose may lead to misuse, this document also provides the geochemical conceptual model, approach used for selecting the values, the justification for selecting data, and the assumptions made to assure that the conceptual and numerical geochemical models are reasonably conservative (i.e., reflect conditions that will tend to predict the maximum risk to the hypothetical recipient). The geochemical parameters describe transport processes for 38 elements (>90 radioisotopes) potentially occurring within eight disposal units (Slit Trenches, Engineered Trenches, Low Activity Waste (LAW) Vault, Intermediate Level (ILV) Vaults, TRU-Pad-1, Naval Reactor Waste Pads, Components-in-Grout Trenches, and Saltstone Facility). This work builds upon well-documented work from previous PA calculations (McDowell-Boyer et al. 2000). The new geochemical concepts introduced in this data package are: (1) In the past, solubility products were used only in a few conditions (element existing in a specific environmental setting). This has been expanded to >100 conditions. (2) Radionuclide chemistry in cementitious environments is described through the use of both the Kd and apparent solubility concentration limit. Furthermore, the solid phase is assumed to age during the assessment period (thousands of years), resulting in three main types of controlling solid phases, each possessing a unique set of radionuclide sorption parameters (Kd and solubility concentration limit). (3) A large amount of recent site-specific sorption research has been conducted since the last PA (McDowell-Boyer et al. 2000). These new data have replaced previous Kd values derived from literature values, thus reducing uncertainty and improving accuracy. Finally, because this document will be used by future PA calculations and external acceptance of the document will eventually be required, this document was extensively reviewed. The review process, including the internal review, site review, and external review process is described.

  6. EXPLORING PROTEIN FOLDING TRAJECTORIES USING GEOMETRIC SPANNERS

    E-Print Network [OSTI]

    Guibas, Leonidas J.

    EXPLORING PROTEIN FOLDING TRAJECTORIES USING GEOMETRIC SPANNERS D. RUSSEL and L. GUIBAS Computer of secondary and tertiary structures as the protein folds. 1 Introduction There has been extensive work understanding of protein folding by studying their ensemble behaviors. Most currently used methods

  7. Exploring colourful holographic superconductors

    E-Print Network [OSTI]

    Kasper Peeters; Jonathan Powell; Marija Zamaklar

    2009-07-09

    We explore a class of holographic superconductors built using non-abelian condensates on probe branes in conformal and non-conformal backgrounds. These are shown to exhibit behaviour of the specific heat which resembles that of heavy fermion compounds in the superconducting phase. Instead of showing BCS-like exponential behaviour, the specific heat is polynomial in the temperature. It exhibits a jump at the critical temperature, in agreement with real-world superconductors. We also analyse the behaviour of the energy gap and the AC and DC conductivities, and find that the systems can be either semi-conducting or metallic just above the critical temperature.

  8. Innovative Exploration Technologies Subprogram Overview

    Broader source: Energy.gov [DOE]

    This overview of GTP's Innovative Exploration Technologies subprogram was given at the GTP Program Peer Review on May 18, 2010.

  9. Evaluation of Groundwater Movement in the Frenchman Flat CAU Using Geochemical and Isotopic Analysis

    SciTech Connect (OSTI)

    R. Hershey; J. Thomas; T. Rose; J. Paces; I. Farnham; C. Benedict, Jr.

    2005-03-01

    The principal pathway for radionuclide migration from underground tests in Frenchman Flat, on the Nevada Test Site, to the accessible environment is groundwater flow. Two potential pathways for radionuclide transport via groundwater have been identified from hydrologic data: (1) radionuclide transport downward from the alluvial and volcanic aquifers into the underlying carbonate aquifer; and (2) radionuclide transport laterally to the carbonate aquifer surrounding Frenchman Flat. This report presents an evaluation of geochemical and environmental isotopic data to test these potential pathways and to identify other groundwater flowpaths in, and out of, Frenchman Flat.

  10. Exploration of the El Hoyo-Monte Galan Geothermal Concession. Final report

    SciTech Connect (OSTI)

    NONE

    1997-12-01

    In January 1996 Trans-Pacific Geothermal Corporation (TGC) was granted a geothermal concession of 114 square kilometers from the Instituto Nicaragueense de Energie (INE) for the purpose of developing between 50 and 150 MWe of geothermal electrical generating capacity. The Concession Agreement required TGC to perform geological, geophysical, and geochemical studies as part of the development program. TGC commenced the geotechnical studies in January 1996 with a comprehensive review of all existing data and surveys. Based on this review, TGC formulated an exploration plan and executed that plan commencing in April, 1996. The ground magnetic (GM), self potential (SP), magnetotelluric/controlled source audio magnetotelluric (MT/CSAMT) and one-meter temperature surveys, data integration, and synthesis of a hydrogeologic model were performed. The purpose of this report is to present a compilation of all data gathered from the geophysical exploration program and to provide an integrated interpretation of that data.

  11. The Extreme Physics Explorer

    E-Print Network [OSTI]

    Martin Elvis

    2006-08-25

    Some tests of fundamental physics - the equation of state at supra-nuclear densities, the metric in strong gravity, the effect of magnetic fields above the quantum critical value - can only be measured using compact astrophysical objects: neutron stars and black holes. The Extreme Physics Explorer is a modest sized (~500 kg) mission that would carry a high resolution (R ~300) X-ray spectrometer and a sensitive X-ray polarimeter, both with high time resolution (~5 ?s) capability, at the focus of a large area (~5 sq.m), low resolution (HPD~1 arcmin) X-ray mirror. This instrumentation would enable new classes of tests of fundamental physics using neutron stars and black holes as cosmic laboratories.

  12. Data Qualification Report For: Thermodynamic Data File, DATA0.YMP.R0 For Geochemical Code, EQ3/6 

    SciTech Connect (OSTI)

    P.L. Cloke

    2001-10-16

    The objective of this work is to evaluate the adequacy of chemical thermodynamic data provided by Lawrence Livermore National Laboratory (LLNL) as DataO.ymp.ROA in response to an input request submitted under AP-3.14Q. This request specified that chemical thermodynamic data available in the file, Data0.com.R2, be updated, improved, and augmented for use in geochemical modeling used in Process Model Reports (PMRs) for Engineered Barrier Systems, Waste Form, Waste Package, Unsaturated Zone, and Near Field Environment, as well as for Performance Assessment. The data are qualified in the temperature range 0 to 100 C. Several Data Tracking Numbers (DTNs) associated with Analysis/Model Reports (AMR) addressing various aspects of the post-closure chemical behavior of the waste package and the Engineered Barrier System that rely on EQ316 outputs to which these data are used as input, are Principal Factor affecting. This qualification activity was accomplished in accordance with the AP-SIII.2Q using the Technical Assessment method. A development plan, TDP-EBS-MD-000044, was prepared in accordance with AP-2.13Q and approved by the Responsible Manager. In addition, a Process Control Evaluation was performed in accordance with AP-SV.1Q. The qualification method, selected in accordance with AP-SIII.2Q, was Technical Assessment. The rationale for this approach is that the data in File Data0.com.R2 are considered Handbook data and therefore do not themselves require qualification. Only changes to Data0.com.R2 required qualification. A new file has been produced which contains the database Data0.ymp.R0, which is recommended for qualification as a result of this action. Data0.ymp.R0 will supersede Data0.com.R2 for all Yucca Mountain Project (YMP) activities.

  13. Advances In The Past 20 Years- Geochemistry In Geothermal Exploration...

    Open Energy Info (EERE)

    using non-condensible gas species); analysis tools that enable fluid inclusion stratigraphy; ground surface CO2 flux measurement; integration of geochemical reaction models...

  14. Geochemical Implications of CO2 Leakage Associated with Geologic Storage: A Review

    SciTech Connect (OSTI)

    Harvey, Omar R.; Qafoku, Nikolla; Cantrell, Kirk J.; Brown, Christopher F.

    2012-07-09

    Leakage from deep storage reservoirs is a major risk factor associated with geologic sequestration of carbon dioxide (CO2). Different scientific theories exist concerning the potential implications of such leakage for near-surface environments. The authors of this report reviewed the current literature on how CO2 leakage (from storage reservoirs) would likely impact the geochemistry of near surface environments such as potable water aquifers and the vadose zone. Experimental and modeling studies highlighted the potential for both beneficial (e.g., CO2 re sequestration or contaminant immobilization) and deleterious (e.g., contaminant mobilization) consequences of CO2 intrusion in these systems. Current knowledge gaps, including the role of CO2-induced changes in redox conditions, the influence of CO2 influx rate, gas composition, organic matter content and microorganisms are discussed in terms of their potential influence on pertinent geochemical processes and the potential for beneficial or deleterious outcomes. Geochemical modeling was used to systematically highlight why closing these knowledge gaps are pivotal. A framework for studying and assessing consequences associated with each factor is also presented in Section 5.6.

  15. Elucidating geochemical response of shallow heterogeneous aquifers to CO2 leakage using high-performance computing: Implications for monitoring of CO2 sequestration

    SciTech Connect (OSTI)

    Navarre-Sitchler, Alexis K.; Maxwell, Reed M.; Siirila, Erica R.; Hammond, Glenn E.; Lichtner, Peter C.

    2013-03-01

    Predicting and quantifying impacts of potential carbon dioxide (CO2) leakage into shallow aquifers that overlie geologic CO2 storage formations is an important part of developing reliable carbon storage techniques. Leakage of CO2 through fractures, faults or faulty wellbores can reduce groundwater pH, inducing geochemical reactions that release solutes into the groundwater and pose a risk of degrading groundwater quality. In order to help quantify this risk, predictions of metal concentrations are needed during geologic storage of CO2. Here, we present regional-scale reactive transport simulations, at relatively fine-scale, of CO2 leakage into shallow aquifers run on the PFLOTRAN platform using high-performance computing. Multiple realizations of heterogeneous permeability distributions were generated using standard geostatistical methods. Increased statistical anisotropy of the permeability field resulted in more lateral and vertical spreading of the plume of impacted water, leading to increased Pb2+ (lead) concentrations and lower pH at a well down gradient of the CO2 leak. Pb2+ concentrations were higher in simulations where calcite was the source of Pb2+ compared to galena. The low solubility of galena effectively buffered the Pb2+ concentrations as galena reached saturation under reducing conditions along the flow path. In all cases, Pb2+ concentrations remained below the maximum contaminant level set by the EPA. Results from this study, compared to natural variability observed in aquifers, suggest that bicarbonate (HCO3) concentrations may be a better geochemical indicator of a CO2 leak under the conditions simulated here.

  16. Walter Baker Chocolate Factory : an adaptive reuse exploration

    E-Print Network [OSTI]

    Castro, Fernando D

    1981-01-01

    This thesis explores the processes of building evolution and the methods in which old buildings are recycled for continued use. Reuse is the process in which a building's life is extended through a preservation or alteration ...

  17. Radioisotopes: Energy for Space Exploration

    SciTech Connect (OSTI)

    Carpenter, Bob; Green, James; Bechtel, Ryan

    2011-01-01

    Through a strong partnership between the Energy Department's office of Nuclear Energy and NASA, Radioisotope Power Systems have been providing the energy for deep space exploration.

  18. Radioisotopes: Energy for Space Exploration

    ScienceCinema (OSTI)

    Carpenter, Bob; Green, James; Bechtel, Ryan

    2013-05-29

    Through a strong partnership between the Energy Department's office of Nuclear Energy and NASA, Radioisotope Power Systems have been providing the energy for deep space exploration.

  19. EXPLORER: A Natural Language Processing System for Oil Exploration

    E-Print Network [OSTI]

    EXPLORER: A Natural Language Processing System for Oil Exploration Wendy G. Lehnert Department", whereas the second time "show" is used it has a technical meaning (i.e., an indicator of oil or gas and Sbwartz, 1982; Shwartz 1982) is a non-fragile, 'bands-on" language analysis system that allows oil

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

    Open Energy Info (EERE)

    DOE-funding Unknown References J. C. Varekamp, P. R. Buseck (1983) Hg Anomalies In Soils- A Geochemical Exploration Method For Geothermal Areas Additional References Retrieved...

  1. Design and Usability of an Enhanced Geographic Information System for Exploration of Multivariate

    E-Print Network [OSTI]

    Klippel, Alexander

    Design and Usability of an Enhanced Geographic Information System for Exploration of Multivariate have recently developed methods for exploring and visualizing large, multivariate datasets with spatial and spatiotemporal datasets that are multivariate in character. This article will present

  2. SURFACE GEOPHYSICAL EXPLORATION - COMPENDIUM DOCUMENT

    SciTech Connect (OSTI)

    RUCKER DF; MYERS DA

    2011-10-04

    This report documents the evolution of the surface geophysical exploration (SGE) program and highlights some of the most recent successes in imaging conductive targets related to past leaks within and around Hanford's tank farms. While it is noted that the SGE program consists of multiple geophysical techniques designed to (1) locate near surface infrastructure that may interfere with (2) subsurface plume mapping, the report will focus primarily on electrical resistivity acquisition and processing for plume mapping. Due to the interferences from the near surface piping network, tanks, fences, wells, etc., the results of the three-dimensional (3D) reconstruction of electrical resistivity was more representative of metal than the high ionic strength plumes. Since the first deployment, the focus of the SGE program has been to acquire and model the best electrical resistivity data that minimizes the influence of buried metal objects. Toward that goal, two significant advances have occurred: (1) using the infrastructure directly in the acquisition campaign and (2) placement of electrodes beneath the infrastructure. The direct use of infrastructure was successfully demonstrated at T farm by using wells as long electrodes (Rucker et al., 2010, 'Electrical-Resistivity Characterization of an Industrial Site Using Long Electrodes'). While the method was capable of finding targets related to past releases, a loss of vertical resolution was the trade-off. The burying of electrodes below the infrastructure helped to increase the vertical resolution, as long as a sufficient number of electrodes are available for the acquisition campaign.

  3. Geochemical and isotopic variations in shallow groundwater in areas of the Fayetteville Shale development, north-central Arkansas q

    E-Print Network [OSTI]

    Jackson, Robert B.

    Geochemical and isotopic variations in shallow groundwater in areas of the Fayetteville Shale of unconventional natural gas reservoirs such as impermeable shale basins through the use of horizontal drilling effects; the possible degradation of water quality in shallow aquifers over- lying producing shale

  4. Numerical modeling of time-lapse seismic data from fractured reservoirs including fluid flow and geochemical processes 

    E-Print Network [OSTI]

    Shekhar, Ravi

    2009-05-15

    and amplitude variation with offset (AVO) results for our example model predicts that CO2 is easier to detect than brine in the fractured reservoirs. The effects of geochemical processes on seismics are simulated by time-lapse modeling for t = 1000 years. My...

  5. Geological, geochemical, and geophysical survey of the geothermal resources at Hot Springs Bay Valley, Akutan Island, Alaska

    SciTech Connect (OSTI)

    Motyka, R.J.; Wescott, E.M.; Turner, D.L.; Swanson, S.E.; Romick, J.D.; Moorman, M.A.; Poreda, R.J.; Witte, W.; Petzinger, B.; Allely, R.D.

    1985-01-01

    An extensive survey was conducted of the geothermal resource potential of Hot Springs Bay Valley on Akutan Island. A topographic base map was constructed, geologic mapping, geophysical and geochemical surveys were conducted, and the thermal waters and fumarolic gases were analyzed for major and minor element species and stable isotope composition. (ACR)

  6. Geochemical evidence for African dust inputs to soils of western Atlantic islands: Barbados, the Bahamas, and Florida

    E-Print Network [OSTI]

    Prospero, Joseph M.

    Geochemical evidence for African dust inputs to soils of western Atlantic islands: Barbados of Barbados, the Florida Keys, and the Bahamas. Potential soil parent materials in this region, external to the carbonate substrate, include volcanic ash from the island of St. Vincent (near Barbados), volcanic ash from

  7. Exploring the Summary of Proceedings

    E-Print Network [OSTI]

    McShea, Daniel W.

    , and installed." The move to the cloud is inevitable, so responsibility for security is going to shift from usersCyber Security: Exploring the Human Element Summary of Proceedings #12;1 Cyber Security: Exploring the Human Element Institute of Homeland Security Solutions March 8, 2011--National Press Club Introduction

  8. Dixie Valley Engineered Geothermal System Exploration Methodology Project, Baseline Conceptual Model Report

    SciTech Connect (OSTI)

    Iovenitti, Joe

    2014-01-02

    The Engineered Geothermal System (EGS) Exploration Methodology Project is developing an exploration approach for EGS through the integration of geoscientific data. The Project chose the Dixie Valley Geothermal System in Nevada as a field laboratory site for methodology calibration purposes because, in the public domain, it is a highly characterized geothermal system in the Basin and Range with a considerable amount of geoscience and most importantly, well data. The overall project area is 2500km2 with the Calibration Area (Dixie Valley Geothermal Wellfield) being about 170km2. The project was subdivided into five tasks (1) collect and assess the existing public domain geoscience data; (2) design and populate a GIS database; (3) develop a baseline (existing data) geothermal conceptual model, evaluate geostatistical relationships, and generate baseline, coupled EGS favorability/trust maps from +1km above sea level (asl) to -4km asl for the Calibration Area at 0.5km intervals to identify EGS drilling targets at a scale of 5km x 5km; (4) collect new geophysical and geochemical data, and (5) repeat Task 3 for the enhanced (baseline + new ) data. Favorability maps were based on the integrated assessment of the three critical EGS exploration parameters of interest: rock type, temperature and stress. A complimentary trust map was generated to compliment the favorability maps to graphically illustrate the cumulative confidence in the data used in the favorability mapping. The Final Scientific Report (FSR) is submitted in two parts with Part I describing the results of project Tasks 1 through 3 and Part II covering the results of project Tasks 4 through 5 plus answering nine questions posed in the proposal for the overall project. FSR Part I presents (1) an assessment of the readily available public domain data and some proprietary data provided by Terra-Gen Power, LLC, (2) a re-interpretation of these data as required, (3) an exploratory geostatistical data analysis, (4) the baseline geothermal conceptual model, and (5) the EGS favorability/trust mapping. The conceptual model presented applies to both the hydrothermal system and EGS in the Dixie Valley region. FSR Part II presents (1) 278 new gravity stations; (2) enhanced gravity-magnetic modeling; (3) 42 new ambient seismic noise survey stations; (4) an integration of the new seismic noise data with a regional seismic network; (5) a new methodology and approach to interpret this data; (5) a novel method to predict rock type and temperature based on the newly interpreted data; (6) 70 new magnetotelluric (MT) stations; (7) an integrated interpretation of the enhanced MT data set; (8) the results of a 308 station soil CO2 gas survey; (9) new conductive thermal modeling in the project area; (10) new convective modeling in the Calibration Area; (11) pseudo-convective modeling in the Calibration Area; (12) enhanced data implications and qualitative geoscience correlations at three scales (a) Regional, (b) Project, and (c) Calibration Area; (13) quantitative geostatistical exploratory data analysis; and (14) responses to nine questions posed in the proposal for this investigation. Enhanced favorability/trust maps were not generated because there was not a sufficient amount of new, fully-vetted (see below) rock type, temperature, and stress data. The enhanced seismic data did generate a new method to infer rock type and temperature. However, in the opinion of the Principal Investigator for this project, this new methodology needs to be tested and evaluated at other sites in the Basin and Range before it is used to generate the referenced maps. As in the baseline conceptual model, the enhanced findings can be applied to both the hydrothermal system and EGS in the Dixie Valley region.

  9. Workshop on hydrologic and geochemical monitoring in the Long Valley Caldera: proceedings

    SciTech Connect (OSTI)

    Sorey, M.L.; Farrar, C.D.; Wollenberg, H.A.

    1984-10-01

    A workshop reviewed the results of hydrologic and geochemical monitoring in the Long Valley caldera. Such monitoring is being done to detect changes in the hydrothermal system induced by ongoing magmatic and tectonic processes. Workshop participants discussed the need to instrument sites for continuous measurements of several parameters and to obtain additional hydrologic and chemical information from intermediate and deep drill holes. In addition to seismic and deformation monitoring, programs are currently in progress to monitor changes in the discharge characteristics of hot springs, fumaroles, and soil gases, as well as pressures and temperatures in wells. Some hydrochemical parameters are measured continuously, others are measured monthly or at longer intervals. This report summarizes the information presented at the hydrologic monitoring workshop, following the workshop agenda which was divided into four sessions: (1) overview of the hydrothermal system; (2) monitoring springs, fumaroles, and wells; (3) monitoring gas emissions; and (4) conclusions and recommendations.

  10. Metagenomes from high-temperature chemotrophic systems reveal geochemical controls on microbial community structure and function

    SciTech Connect (OSTI)

    Frank Roberto

    2010-03-01

    The Yellowstone caldera contains the most numerous and diverse geothermal systems on Earth, yielding an extensive array of unique high-temperature environments that host numerous deeply-rooted and understudied Archaea, Bacteria and Eukarya. The combination of extreme temperature and chemical conditions encountered in geothermal environments often results in considerably less microbial diversity than other terrestrial habitats and offers a tremendous opportunity for studying the structure and function of indigenous microbial communities and for establishing linkages between putative metabolisms and element cycling. Metagenome sequence (14-15,000 Sanger reads per site) was obtained for five high-temperature (> 65 oC) chemotrophic microbial communities sampled from geothermal springs (or pools) in Yellowstone National Park (YNP) that exhibit a wide range in geochemistry including pH, dissolved sulfide, dissolved O2 and ferrous Fe. Metagenome data revealed significant differences in the predominant phyla associated with each of these geochemical environments. Novel members of the Sulfolobales are dominant in low pH environments, while other Crenarchaeota including distantly-related Thermoproteales and Desulfurococcales populations dominate in suboxic sulfidic sediments. Several novel archaeal groups are well represented in an acidic (pH 3) Fe-oxyhydroxide mat, where a higher O2 influx is accompanied with an increase in archaeal diversity. The presence or absence of genes and pathways important in S oxidation-reduction, H2-oxidation, and aerobic respiration (terminal oxidation) provide insight regarding the metabolic strategies of indigenous organisms present in geothermal systems. Multiple-pathway and protein-specific functional analysis of metagenome sequence data corroborated results from phylogenetic analyses and clearly demonstrate major differences in metabolic potential across sites. The distribution of functional genes involved in electron transport is consistent with the hypothesis that geochemical parameters (e.g., pH, sulfide, Fe, O2) control microbial community structure and function in YNP geothermal springs.

  11. Geochemical Impacts of Leaking CO2 from Subsurface Storage Reservoirs to Unconfined and Confined Aquifers

    SciTech Connect (OSTI)

    Qafoku, Nikolla; Brown, Christopher F.; Wang, Guohui; Sullivan, E. C.; Lawter, Amanda R.; Harvey, Omar R.; Bowden, Mark

    2013-04-15

    Experimental research work has been conducted and is undergoing at Pacific Northwest National Laboratory (PNNL) to address a variety of scientific issues related with the potential leaks of the carbon dioxide (CO2) gas from deep storage reservoirs. The main objectives of this work are as follows: • Develop a systematic understanding of how CO2 leakage is likely to influence pertinent geochemical processes (e.g., dissolution/precipitation, sorption/desorption and redox reactions) in the aquifer sediments. • Identify prevailing environmental conditions that would dictate one geochemical outcome over another. • Gather useful information to support site selection, risk assessment, policy-making, and public education efforts associated with geological carbon sequestration. In this report, we present results from experiments conducted at PNNL to address research issues related to the main objectives of this effort. A series of batch and column experiments and solid phase characterization studies (quantitative x-ray diffraction and wet chemical extractions with a concentrated acid) were conducted with representative rocks and sediments from an unconfined, oxidizing carbonate aquifer, i.e., Edwards aquifer in Texas, and a confined aquifer, i.e., the High Plains aquifer in Kansas. These materials were exposed to a CO2 gas stream simulating CO2 gas leaking scenarios, and changes in aqueous phase pH and chemical composition were measured in liquid and effluent samples collected at pre-determined experimental times. Additional research to be conducted during the current fiscal year will further validate these results and will address other important remaining issues. Results from these experimental efforts will provide valuable insights for the development of site-specific, generation III reduced order models. In addition, results will initially serve as input parameters during model calibration runs and, ultimately, will be used to test model predictive capability and competency. The results from these investigations will provide useful information to support site selection, risk assessment, and public education efforts associated with geological, deep subsurface CO2 storage and sequestration.

  12. Geothermal Exploration Cost and Time

    SciTech Connect (OSTI)

    Jenne, Scott

    2013-02-13

    The Department of Energy’s Geothermal Technology Office (GTO) provides RD&D funding for geothermal exploration technologies with the goal of lowering the risks and costs of geothermal development and exploration. The National Renewable Energy Laboratory (NREL) was tasked with developing a metric in 2012 to measure the impacts of this RD&D funding on the cost and time required for exploration activities. The development of this cost and time metric included collecting cost and time data for exploration techniques, creating a baseline suite of exploration techniques to which future exploration cost and time improvements can be compared, and developing an online tool for graphically showing potential project impacts (all available at http://en.openei.org/wiki/Gateway: Geothermal). This paper describes the methodology used to define the baseline exploration suite of techniques (baseline), as well as the approach that was used to create the cost and time data set that populates the baseline. The resulting product, an online tool for measuring impact, and the aggregated cost and time data are available on the Open Energy Information website (OpenEI, http://en.openei.org) for public access. - Published 01/01/2013 by US National Renewable Energy Laboratory NREL.

  13. Geochemical anomalies in the surface media over the Phoenix Deposit, Athabasca Basin Ressources naturelles

    E-Print Network [OSTI]

    naturelles Canada Natural Resources Canada Targeted Geoscience Initiative 4: Increasing Deep Exploration Abstract Volume; 17. Hattori, K., and Hamilton, S. (2008). Geochemistry of peat over kimberlites

  14. SFU Library Ask. Explore. Discover.

    E-Print Network [OSTI]

    SFU Library Ask. Explore. Discover. SFU Library Annual Report 2007-08 #12;SFU Library Annual Report..................................................................................................... 8 WAC BENNETT LIBRARY................................................................................... 9 SAMUEL AND FRANCES BELZBERG LIBRARY............................................... 10 FRASER

  15. Edinburgh Research Explorer Statistical Constraints

    E-Print Network [OSTI]

    Millar, Andrew J.

    Edinburgh Research Explorer Statistical Constraints Citation for published version: Rossi, R that links statistics and constraint programming. We dis- cuss two novel statistical constraints and some, Prestwich, S & Tarim, SA 2014, 'Statistical Constraints' Paper presented at 21st biennial European

  16. Silver Peak Innovative Exploration Project

    Broader source: Energy.gov [DOE]

    DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Reduce the high level of risk during the early stages of geothermal project development by conducting a multi-faceted and innovative exploration and drilling program at Silver Peak. Determine the combination of techniques that are most useful and cost-effective in identifying the geothermal resource through a detailed, post-project evaluation of the exploration and drilling program.

  17. Up-Scaling Geochemical Reaction Rates for Carbon Dioxide (CO2) in Deep Saline Aquifers

    SciTech Connect (OSTI)

    Peters, Catherine A

    2013-02-28

    Geochemical reactions in deep subsurface environments are complicated by the consolidated nature and mineralogical complexity of sedimentary rocks. Understanding the kinetics of these reactions is critical to our ability to make long-term predictions about subsurface processes such as pH buffering, alteration in rock structure, permeability changes, and formation of secondary precipitates. In this project, we used a combination of experiments and numerical simulation to bridge the gap between our knowledge of these reactions at the lab scale and rates that are meaningful for modeling reactive transport at core scales. The focus is on acid-driven mineral dissolution, which is specifically relevant in the context of CO2-water-rock interactions in geological sequestration of carbon dioxide. The project led to major findings in three areas. First, we modeled reactive transport in pore-network systems to investigate scaling effects in geochemical reaction rates. We found significant scaling effects when CO2 concentrations are high and reaction rates are fast. These findings indicate that the increased acidity associated with geological sequestration can generate conditions for which proper scaling tools are yet to be developed. Second, we used mathematical modeling to investigate the extent to which SO2, if co-injected with CO2, would acidify formation brines. We found that there exist realistic conditions in which the impact on brine acidity will be limited due to diffusion rate-limited SO2 dissolution from the CO2 phase, and the subsequent pH shift may also be limited by the lack of availability of oxidants to produce sulfuric acid. Third, for three Viking sandstones (Alberta sedimentary basin, Canada), we employed backscattered electron microscopy and energy dispersive X-ray spectroscopy to statistically characterize mineral contact with pore space. We determined that for reactive minerals in sedimentary consolidated rocks, abundance alone is not a good predictor of mineral accessible surface area, and should not be used in reactive transport modeling. Our work showed that reaction rates would be overestimated by three to five times.

  18. Geochemical maps showing the distribution and abundance of selected elements in stream-sediment samples, Solomon and Bendeleben 1 degree by 3 degree quadrangles, Seward Peninsula, Alaska

    SciTech Connect (OSTI)

    Smith, S.C.; King, H.D.; O'Leary, R.M.

    1989-01-01

    Geochemical maps showing the distribution and abundance of selected elements in stream-sediment samples, Solomon and Bendeleben 1{degree} by 3{degree} quadrangles, Seward Peninsula, Alaska is presented.

  19. Geologic, geophysical, and geochemical aspects of site-specific studies of the geopressured-geothermal energy resource of southern Louisiana. Final report

    SciTech Connect (OSTI)

    Pilger, R.H. Jr. (ed.)

    1985-01-01

    The report consists of four sections dealing with progress in evaluating geologic, geochemical, and geophysical aspects of geopressured-geothermal energy resources in Louisiana. Separate abstracts have been prepared for the individual sections. (ACR)

  20. Geochemical Impacts of Carbon Dioxide, Brine, Trace Metal and Organic Leakage into an Unconfined, Oxidizing Limestone Aquifer

    SciTech Connect (OSTI)

    Bacon, Diana H. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Dai, Zhenxue [Los Alamos National Laboratory, Los Alamos, NM (United States); Zheng, Liange [Lawrence Berkeley National Laboratory, Berkeley, CA (United States)

    2014-12-31

    An important risk at CO2 storage sites is the potential for groundwater quality impacts. As part of a system to assess the potential for these impacts a geochemical scaling function has been developed, based on a detailed reactive transport model of CO2 and brine leakage into an unconfined, oxidizing carbonate aquifer. Stochastic simulations varying a number of geochemical parameters were used to generate a response surface predicting the volume of aquifer that would be impacted with respect to regulated contaminants. The brine was assumed to contain several trace metals and organic contaminants. Aquifer pH and TDS were influenced by CO2 leakage, while trace metal concentrations were most influenced by the brine concentrations rather than adsorption or desorption on calcite. Organic plume sizes were found to be strongly influenced by biodegradation.

  1. GaMin’11 – an international inter-laboratory comparison for geochemical CO? - saline fluid - mineral interaction experiments

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ostertag-Henning, C.; Risse, A.; Thomas, B.; Rosenbauer, R.; Rochelle, C.; Purser, G.; Kilpatrick, A.; Rosenqvist, J.; Yardley, B.; Karamalidis, A.; et al

    2014-12-31

    Due to the strong interest in geochemical CO?-fluid-rock interaction in the context of geological storage of CO? a growing number of research groups have used a variety of different experimental ways to identify important geochemical dissolution or precipitation reactions and – if possible – quantify the rates and extent of mineral or rock alteration. In this inter-laboratory comparison the gas-fluid-mineral reactions of three samples of rock-forming minerals have been investigated by 11 experimental labs. The reported results point to robust identification of the major processes in the experiments by most groups. The dissolution rates derived from the changes in compositionmore »of the aqueous phase are consistent overall, but the variation could be reduced by using similar corrections for changing parameters in the reaction cells over time. The comparison of experimental setups and procedures as well as of data corrections identified potential improvements for future gas-fluid-rock studies.« less

  2. Improved Geothermometry Through Multivariate Reaction-path Modeling and Evaluation of Geomicrobiological Influences on Geochemical Temperature Indicators: Final Report

    SciTech Connect (OSTI)

    Mattson, Earl; Smith, Robert; Fujita, Yoshiko; McLing, Travis; Neupane, Ghanashyam; Palmer, Carl; Reed, David; Thompson, Vicki

    2015-03-01

    The project was aimed at demonstrating that the geothermometric predictions can be improved through the application of multi-element reaction path modeling that accounts for lithologic and tectonic settings, while also accounting for biological influences on geochemical temperature indicators. The limited utilization of chemical signatures by individual traditional geothermometer in the development of reservoir temperature estimates may have been constraining their reliability for evaluation of potential geothermal resources. This project, however, was intended to build a geothermometry tool which can integrate multi-component reaction path modeling with process-optimization capability that can be applied to dilute, low-temperature water samples to consistently predict reservoir temperature within ±30 °C. The project was also intended to evaluate the extent to which microbiological processes can modulate the geochemical signals in some thermal waters and influence the geothermometric predictions.

  3. Geochemical Impacts of Carbon Dioxide, Brine, Trace Metal and Organic Leakage into an Unconfined, Oxidizing Limestone Aquifer

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Bacon, Diana H.; Dai, Zhenxue; Zheng, Liange

    2014-12-31

    An important risk at CO2 storage sites is the potential for groundwater quality impacts. As part of a system to assess the potential for these impacts a geochemical scaling function has been developed, based on a detailed reactive transport model of CO2 and brine leakage into an unconfined, oxidizing carbonate aquifer. Stochastic simulations varying a number of geochemical parameters were used to generate a response surface predicting the volume of aquifer that would be impacted with respect to regulated contaminants. The brine was assumed to contain several trace metals and organic contaminants. Aquifer pH and TDS were influenced by CO2more »leakage, while trace metal concentrations were most influenced by the brine concentrations rather than adsorption or desorption on calcite. Organic plume sizes were found to be strongly influenced by biodegradation.« less

  4. GaMin’11 – an international inter-laboratory comparison for geochemical CO? - saline fluid - mineral interaction experiments

    SciTech Connect (OSTI)

    Ostertag-Henning, C. [Federal Inst. for Geosciences and Natural Resesources (BGR), Hannover (Germany); Risse, A. [Federal Inst. for Geosciences and Natural Resesources (BGR), Hannover (Germany); Thomas, B. [United States Geological Survey, Menlo Park, CA (United States); Rosenbauer, R. [United States Geological Survey, Menlo Park, CA (United States); Rochelle, C. [British Geological Survey, Nottinghamshire (United Kingdom); Purser, G. [British Geological Survey, Nottinghamshire (United Kingdom); Kilpatrick, A. [British Geological Survey, Nottinghamshire (United Kingdom); Rosenqvist, J. [Univ. of Leeds (United Kingdom); Yardley, B. [Univ. of Leeds (United Kingdom); Karamalidis, A. [Carnegie Mellon Univ., Pittsburgh, PA (United States); Griffith, C. [National Energy Technology Lab., Pittsburgh, PA (United States); Hedges, S. [National Energy Technology Lab., Pittsburgh, PA (United States); Dilmore, R. [National Energy Technology Lab., Pittsburgh, PA (United States); Goodman, A. [National Energy Technology Lab., Pittsburgh, PA (United States); Black, J. [Univ. of Melbourne, (Austrialia); Haese, R. [Univ. of Melbourne, (Austrialia); Deusner, C. [hGEOMAR Helmholtz Center for Ocean Research, Kiel (Germany); Bigalke, N. [hGEOMAR Helmholtz Center for Ocean Research, Kiel (Germany); Haeckel, M. [hGEOMAR Helmholtz Center for Ocean Research, Kiel (Germany); Fischer, S. [GFZ German Research Centre for Geosciences, Potsdam (Germany); Liebscher, A. [GFZ German Research Centre for Geosciences, Potsdam (Germany); Icenhower, J. P. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Daval, D. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Saldi, G. D. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Knauss, K. G. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Schmidt, M. [Martin Luther Univ., Halle (Germany); Mito, S. [Research Inst. of Innovative Tech. for the Earth (RITE), Kyoto (Japan); Sorai, M. [National Inst. of Advanced Science and Tech. (AIST) Tsukuba (Japan); Truche, L. [GeoRessources, Universite de Lorraine, Nancy (France)

    2014-12-31

    Due to the strong interest in geochemical CO?-fluid-rock interaction in the context of geological storage of CO? a growing number of research groups have used a variety of different experimental ways to identify important geochemical dissolution or precipitation reactions and – if possible – quantify the rates and extent of mineral or rock alteration. In this inter-laboratory comparison the gas-fluid-mineral reactions of three samples of rock-forming minerals have been investigated by 11 experimental labs. The reported results point to robust identification of the major processes in the experiments by most groups. The dissolution rates derived from the changes in composition of the aqueous phase are consistent overall, but the variation could be reduced by using similar corrections for changing parameters in the reaction cells over time. The comparison of experimental setups and procedures as well as of data corrections identified potential improvements for future gas-fluid-rock studies.

  5. GaMin’11 – an International Inter-laboratory Comparison for Geochemical CO2 - Saline Fluid - Mineral Interaction Experiments

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ostertag-Henning, C.; Risse, A.; Thomas, B.; Rosenbauer, R.; Rochelle, C.; Purser, G.; Kilpatrick,; Rosenqvist, J.; Yardley, B.; Karamalidis, A.; et al

    2014-01-01

    Due to the strong interest in geochemical CO2-fluid-rock interaction in the context of geological storage of CO2 a growing number of research groups have used a variety of different experimental ways to identify important geochemical dissolution or precipitation reactions and – if possible – quantify the rates and extent of mineral or rock alteration. In this inter-laboratory comparison the gas-fluid-mineral reactions of three samples of rock-forming minerals have been investigated by 11 experimental labs. The reported results point to robust identification of the major processes in the experiments by most groups. The dissolution rates derived from the changes in compositionmore »of the aqueous phase are consistent overall, but the variation could be reduced by using similar corrections for changing parameters in the reaction cells over time. The comparison of experimental setups and procedures as well as of data corrections identified potential improvements for future gas-fluid-rock studies.« less

  6. NORTHERN NEVADA GEOTHERMAL EXPLORATION STRATEGY ANALYSIS

    E-Print Network [OSTI]

    Goldstein, N.E.

    2011-01-01

    seismic in the mandatory portion of the detail phase exploration.seismic and temperature gradient/heat-flow drilling constitute the mandatory portion of the detail phase exploration (exploration costs estimated by Ward far more than the structure. Active seismic (

  7. A hydrogeological and geochemical model of the high-temperature geothermal system of Amatitlan, Guatemala

    SciTech Connect (OSTI)

    Lima, E.; Fujino, T. [West Japan Engineering Consultants, Inc., Fukuoka (Japan); McNitt, J.R.; Klein, C.W. [GeothermEx, Inc., Richmond, CA (United States)] [and others

    1996-12-31

    Geological, geophysical and geochemical data from deep and shallow wells indicate the presence of a large geothermal system fed by upflow beneath Volcan de Pacaya, with source temperatures {ge} 330{degrees}C and chloride contents on the order of 2,500 mg/l. A considerable contribution of magmatic water is suggested by chemical and isotopic data, provided that water-rock interactions have substantially neutralized the acidity of the magmatic component. The areal extent of the upflow zone is unknown, and can only be delimited by further drilling to the south and southeast of deep well AMF-2, which encounters the two-phase upflow zone. Outflow is directed to the north, towards Lago de Amatitlan. The outflow path is long (more than 7 km), and lateral cooling occurs both via conduction and dilution with cool groundwater. Vertical cooling is also indicated by temperature reversals of up to 60{degrees}C beneath the outflow tongue, attributed to a regional underflow of cool groundwater. Outflow paths do not appear to be controlled by geologic structures or aquifers; instead, the hot water appears to {open_quotes}float{close_quotes} on top of the gently sloping unconfined groundwater table. These aspects of the geothermal system were used to develop the numerical model of the Amatitlan geothermal system, which is the subject of a separate paper.

  8. Innovative Computational Tools for Reducing Exploration Risk...

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

    Computational Tools for Reducing Exploration Risk Through Integration of Water-Rock Interactions and Magnetotelluric Surveys Innovative Computational Tools for Reducing Exploration...

  9. Innovative Exploration Techniques for Geothermal Assessment at...

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

    Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico Innovative Exploration Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico Innovative Exploration...

  10. Exploring the Business Link Opportunity: Transmission & Clean...

    Office of Environmental Management (EM)

    Exploring the Business Link Opportunity: Transmission & Clean Energy Development in the West Exploring the Business Link Opportunity: Transmission & Clean Energy Development in the...

  11. Hydrothermal Exploration Best Practices and Geothermal Knowledge...

    Open Energy Info (EERE)

    Knowledge Exchange on Openei Abstract Though exploring for hydrothermal resources is not new, advances in exploration technologies and the pursuit of less visible resources have...

  12. Tribal Energy Summit Tackles Challenges, Explores Opportunities...

    Office of Environmental Management (EM)

    Energy Summit Tackles Challenges, Explores Opportunities on Path to Economic Sovereignty Tribal Energy Summit Tackles Challenges, Explores Opportunities on Path to Economic...

  13. State of Seismic Methods For Geothermal Reservoir Exploration...

    Office of Scientific and Technical Information (OSTI)

    To Improving Waterflood Steep Efficiency, Proc. Eurock '94, Rock Mechanics in Petroleum Engineering, Delft, Netherlands (1994). K. J. HEFFER, A. B. DOWOKPOR, Relationships...

  14. An Integrated Study Method For Exploration Of Gas Hydrate Reservoirs...

    Open Energy Info (EERE)

    and geochemistry. First, geological analysis is made using data of material sources, structures, sediments, and geothermal regimes to determine the hydrocarbon-formation conditions...

  15. Seismic methods for resource exploration in enhanced geothermal systems

    E-Print Network [OSTI]

    Gritto, Roland; Majer, Ernest L.

    2002-01-01

    density) from borehole experiments in the geothermal area.to-borehole seismic studies at the Rye Patch geothermalfrom previous borehole studies at the Rye Patch geothermal

  16. A SweepLine Method for State Space Exploration

    E-Print Network [OSTI]

    Mailund, Thomas

    at systemsf or which it is possible to define a measure of progress based on the states of the system be powerful for invest igat ingt he correct ­ ness of concurrent syst ems The basic idea behind st at e space are part ial order reduct ion met hods [19, 21, 22],t he symmet ry # Supported by the Danish Natural

  17. A method for tradespace exploration of systems of systems

    E-Print Network [OSTI]

    Chattopadhyay, Debarati

    2009-01-01

    Systems of Systems (SoS) are a current focus of many organizations interested in integrating assets and utilizing new technology to create multi-component systems that deliver value over time. The dynamic composition of ...

  18. Early Events in Protein Folding Explored by Rapid Mixing Methods

    E-Print Network [OSTI]

    Roder, Heinrich

    of unfolded or partially folded states, (V7 10/11 12:16) VCH/G J-1079 Buchner I PMU: WSL(W) 19/08/04 AC1: WSL

  19. An Evaluation Of Exploration Methods For Low-Temperature Geothermal...

    Open Energy Info (EERE)

    Geothermal Systems In The Artesian-City Area, Idaho Authors E. M. Struhsacker, C. Smith and R. M. Capuano Published Journal Geological Society of America Bulletin, 1983 DOI...

  20. Seismic methods for resource exploration in enhanced geothermal systems

    E-Print Network [OSTI]

    Gritto, Roland; Majer, Ernest L.

    2002-01-01

    Enhanced Geothermal Systems (EGS) include, among othersfracture systems typical for EGS. Faults, Fracture Systems,

  1. An exploration of materials and methods in manufacturing : shoreline membranes

    E-Print Network [OSTI]

    Chin, Ryan C. C., 1974-

    2000-01-01

    This thesis is an investigation into the design methodologies and ideologies of manufacturing processes specifically related to automotive design. The conceptualization, prototyping, testing, and manufacturing of cars is ...

  2. Development of Exploration Methods for Engineered Geothermal Systems

    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) Jump to: navigation,System Geothermalthrough

  3. 3-D Seismic Methods For Geothermal Reservoir Exploration And

    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 LIST OFAMERICA'SHeavyAgencyTendo NewYanbu, Saudideveloperft

  4. Seismic Methods For Resource Exploration In Enhanced Geothermal Systems |

    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 Inc Jump to:Newberg,EnergyEastCarbonOpenSchulthess GroupSmart GridSeikoOpen Energy

  5. A Numerical Evaluation Of Electromagnetic Methods In Geothermal Exploration

    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 | OpenEnergyEvaluation |Island,ApproachSteam |

  6. A Numerical Evaluation Of Electromagnetic Methods In Geothermal Exploration

    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 | OpenEnergyEvaluation |Island,ApproachSteam |- L

  7. A Numerical Evaluation Of Electromagnetic Methods In Geothermal Exploration

    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 | OpenEnergyEvaluation |Island,ApproachSteam |- L-

  8. A Numerical Evaluation Of Electromagnetic Methods In Geothermal Exploration

    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 | OpenEnergyEvaluation |Island,ApproachSteam |- L-|

  9. Development of Exploration Methods for Engineered Geothermal Systems

    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 VenturesInformation9)ask queries TypeDeveloper| OpenSilver

  10. Borehole Logging Methods for Exploration and Evaluation of Uranium Deposits

    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 a l De pEnergy Industrial LocalAprilstaff(1967) | Department of

  11. Development of Exploration Methods for Engineered Geothermal System through

    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| Department8,Department of Energy 1 DOEEnergy 2Integrated

  12. Ingenious Women Exploring Creativity, Cash

    E-Print Network [OSTI]

    Obbard, Darren

    Ingenious Women Exploring Creativity, Cash and Control to unlock potential 04-06 Innovative of Higher Education and Edinburgh. Our focus will be on ensuring that IAD provides a space, connections Ingenious Women: an approach to unlocking potential 07 Three Minute Thesis: Case Study 08 Making the Most

  13. Explore Java What Is Java?

    E-Print Network [OSTI]

    Myers, Brad A.

    Explore Java Must Reads What Is Java? Download the Java Development Kit Install the Java SE Development Kit Create Your First Java Program Reserved Words in Java Most Popular Free Java Newsletter! By Category Enter email address Getting Started Programming Concepts Tutorials Java Syntax Building

  14. Climate Modeling: A Brief Exploration

    E-Print Network [OSTI]

    Blais, Brian

    Climate Modeling: A Brief Exploration Dr Hong Yang Dr Qin Leng Collin Gagnon April 9, 2014 Dr Brian;Exponential Model Gaussian Model #12;Oscillation Model Ecological Modelling 171 (2004) 433­450 Climate change; accepted 13 August 2003 Abstract Two questions about climate change remain open: detection and attribution

  15. Rapidly-Exploring Roadmaps: Weighing Exploration vs. Refinement in Optimal Motion Planning

    E-Print Network [OSTI]

    Patil, Sachin

    Rapidly-Exploring Roadmaps: Weighing Exploration vs. Refinement in Optimal Motion Planning Ron of already explored regions to find better paths. We present the rapidly- exploring roadmap (RRM), a new to explore further or to refine the explored space by adding edges to the current roadmap to find higher

  16. Geochemical and Isotopic Evaluation of Groundwater Movement in Corrective Action Unit 97: Yucca Flat/Climax Mine, Nevada Test Site, Nevada, Rev. No.: 0

    SciTech Connect (OSTI)

    Farnham, Irene

    2006-02-01

    This report describes the results of a comprehensive geochemical evaluation of the groundwater flow system in the Yucca Flat/Climax Mine Corrective Action Unit (CAU). The main objectives of this study are to identify probable pathways for groundwater flow within the study area and to develop constraints on groundwater transit times between selected data collection sites. This work provides an independent means of testing and verifying predictive flow models being developed for this CAU using finite element methods. The Yucca Flat/Climax Mine CAU constitutes the largest of six underground test areas on the Nevada Test Site (NTS) specified for remedial action in the ''Federal Facility Agreement and Consent Order''. A total of 747 underground nuclear detonations were conducted in this CAU. Approximately 23 percent of these detonations were conducted below or near the water table, resulting in groundwater contamination in the vicinity and possibly downgradient of these underground test locations. Therefore, a rigorous evaluation of the groundwater flow system in this CAU is necessary to assess potential long-term risks to the public water supply at downgradient locations.

  17. Geochemical Data Package for the 2005 Hanford Integrated Disposal Facility Performance Assessment

    SciTech Connect (OSTI)

    Krupka, Kenneth M.; Serne, R JEFFREY.; Kaplan, D I.

    2004-09-30

    CH2M HILL Hanford Group, Inc. (CH2M HILL) is designing and assessing the performance of an integrated disposal facility (IDF) to receive low-level waste (LLW), mixed low-level waste (MLLW), immobilized low-activity waste (ILAW), and failed or decommissioned melters. The CH2M HILL project to assess the performance of this disposal facility is the Hanford IDF Performance Assessment (PA) activity. The goal of the Hanford IDF PA activity is to provide a reasonable expectation that the disposal of the waste is protective of the general public, groundwater resources, air resources, surface-water resources, and inadvertent intruders. Achieving this goal will require prediction of contaminant migration from the facilities. This migration is expected to occur primarily via the movement of water through the facilities, and the consequent transport of dissolved contaminants in the vadose zone to groundwater where contaminants may be re-introduced to receptors via drinking water wells or mixing in the Columbia River. Pacific Northwest National Laboratory (PNNL) assists CH2M HILL in their performance assessment activities. One of the PNNL tasks is to provide estimates of the geochemical properties of the materials comprising the IDF, the disturbed region around the facility, and the physically undisturbed sediments below the facility (including the vadose zone sediments and the aquifer sediments in the upper unconfined aquifer). The geochemical properties are expressed as parameters that quantify the adsorption of contaminants and the solubility constraints that might apply for those contaminants that may exceed solubility constraints. The common parameters used to quantify adsorption and solubility are the distribution coefficient (Kd) and the thermodynamic solubility product (Ksp), respectively. In this data package, we approximate the solubility of contaminants using a more simplified construct, called the solution concentration limit, a constant value. The Kd values and solution concentration limits for each contaminant are direct inputs to subsurface flow and transport codes used to predict the performance of the IDF system. In addition to the best-estimate Kd values, a reasonable conservative value and a range are provided. The data package does not list estimates for the range in solubility limits or their uncertainty. However, the data package does provide different values for both the Kd values and solution concentration limits for different spatial zones in the IDF system and does supply time-varying Kd values for the cement solidified waste. The Kd values and solution concentration limits presented for each contaminant were previously presented in a report prepared by Kaplan and Serne (2000) for the 2001 ILAW PA, and have been updated to include applicable data from investigations completed since the issuance of that report and improvements in our understanding of the geochemistry specific to Hanford. A discussion is also included of the evolution of the Kd values recommended from the original 1999 ILAW PA through the 2001 ILAW and 2003 Supplement PAs to the current values to be used for the 2005 IDF PA for the key contaminants of concern: Cr(VI), nitrate, 129I, 79Se, 99Tc, and U(VI). This discussion provides the rationale for why certain Kd have changed with time.

  18. Centauri Dreams Imagining and Planning Interstellar Exploration

    E-Print Network [OSTI]

    Arizona, University of

    and steep terrain to explore them. Airships would be particularly useful in environments like Titan, where

  19. Geochemical engineering design tools for uranium in situ recovery : the HYDROGEOCHEM codes.

    SciTech Connect (OSTI)

    Siegel, Malcolm Dean; Li, Ming-Hsu; Yeh, Gour-Tsyh

    2010-11-01

    Geochemical Engineering Design (GED) is based on applications of the principles and various computer models that describe the biogeochemistry and physics of removal of contaminants from water by adsorption, precipitation and filtration. It can be used to optimize or evaluate the efficiency of all phases of in situ recovery (ISR). The primary tools of GED are reactive transport models; this talk describes the potential application of the HYDROGEOCHEM family of codes to ISR. The codes can describe a complete suite of equilibrium or kinetic aqueous complexation, adsorption-desorption, precipitation-dissolution, redox, and acid-base reactions in variably saturated media with density-dependent fluid flow. Applications to ISR are illustrated with simulations of (1) the effectiveness of a reactive barrier to prevent off-site uranium migration and (2) evaluation of the effect of sorption hysteresis on natural attenuation. In the first example, it can be seen that the apparent effectiveness of the barrier depends on monitoring location and that it changes over time. This is due to changes in pH, saturation of sorption sites, as well as the geometry of the flow field. The second simulation shows how sorption hysteresis leads to observable attenuation of a uranium contamination plume. Different sorption mechanisms including fast (or reversible), slow, and irreversible sorption were simulated. The migration of the dissolved and total uranium plumes for the different cases are compared and the simulations show that when 50-100% of the sites have slow desorption rates, the center of mass of the dissolved uranium plume begins to move upstream. This would correspond to the case in which the plume boundaries begin to shrink as required for demonstration of natural attenuation.

  20. Geochemical information for sites contaminated with low-level radioactive wastes. III. Weldon Spring Storage Site

    SciTech Connect (OSTI)

    Seeley, F.G.; Kelmers, A.D.

    1985-02-01

    The Weldon Spring Storage Site (WSSS), which includes both the chemical site and the quarry, became radioactively contaminated as the result of wastes that were being stored from operations to recover uranium from pitchblende ores in the 1940s and 1950s. The US Department of Energy (DOE) is considering various remedial action options for the WSSS. This report describes the results of geochemical investigations carried out at Oak Ridge National Laboratory (ORNL) to support these activities and to help quantify various remedial action options. Soil and groundwater samples were characterized, and uranium and radium sorption ratios were measured in site soil/groundwater systems by batch contact methodology. Soil samples from various locations around the raffinate pits were found to contain major amounts of silica, along with illite as the primary clay constituent. Particle sizes of the five soil samples were variable (50% distribution point ranging from 12 to 81 ..mu..m); the surface areas varied from 13 to 62 m/sup 2//g. Elemental analysis of the samples showed them to be typical of sandy clay and silty clay soils. Groundwater samples included solution from Pit 3 and well water from Well D. Anion analyses showed significant concentrations of sulfate and nitrate (>350 and >7000 mg/L, respectively) in the solution from Pit 3. These anions were also present in the well water, but in lower concentrations. Uranium sorption ratios for four of the soil samples contacted with the solution from Pit 3 were moderate to high (approx. 300 to approx. 1000 mL/g). The fifth sample had a ratio of only 12 mL/g. Radium sorption ratios for the five samples were moderate to high (approx. 600 to approx. 1000 mL/g). These values indicate that soil at the WSSS may show favorable retardation of uranium and radium in the groundwater. 13 references, 13 figures, 10 tables.

  1. GIS Regional Spatial Data from the Great Basin Center for Geothermal Energy: Geochemical, Geodesic, Geologic, Geophysical, Geothermal, and Groundwater Data

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The Great Basin Center for Geothermal Energy, part of the University of Nevada, Reno, conducts research towards the establishment of geothermal energy as an economically viable energy source within the Great Basin. The Center specializes in collecting and synthesizing geologic, geochemical, geodetic, geophysical, and tectonic data, and using Geographic Information System (GIS) technology to view and analyze this data and to produce favorability maps of geothermal potential. The center also makes its collections of spatial data available for direct download to the public. Data are in Lambert Conformable Conic Projection.

  2. Unraveling the 3D genome: genomics tools for multiscale exploration

    E-Print Network [OSTI]

    Straight, Aaron

    Unraveling the 3D genome: genomics tools for multiscale exploration Viviana I. Risca and William J genome and the roles it may play in regulating transcription. Here we review core methods and new tools-scale chromosomal domains, and discuss the emerging pic- ture of the 3D genome that these tools have revealed. Blind

  3. Seismic anisotropy in exploration and reservoir characterization: An overview

    E-Print Network [OSTI]

    Tsvankin, Ilya

    range of seismic methods. In particular, vertical and tilted transverse isotropy are currently treated vertical-seis- mic-profiling VSP surveys, moveout inversion of wide-azi- muth data, amplitudeSeismic anisotropy in exploration and reservoir characterization: An overview Ilya Tsvankin1

  4. Heuristics-Guided Exploration of Reaction Mechanisms

    E-Print Network [OSTI]

    Bergeler, Maike; Proppe, Jonny; Reiher, Markus

    2015-01-01

    For the investigation of chemical reaction networks, the efficient and accurate determination of all relevant intermediates and elementary reactions is inevitable. The complexity of such a network may grow rapidly, in particular if reactive species are involved that might cause a myriad of side reactions. Without automation, a complete investigation of complex reaction mechanisms is tedious and possibly unfeasible. Therefore, only the expected dominant reaction paths of a chemical reaction network (e.g., a catalytic cycle or an enzymatic cascade) are usually explored in practice. Here, we present a computational protocol that constructs such networks in a parallelized and automated manner. Molecular structures of reactive complexes are generated based on heuristic rules and subsequently optimized by electronic-structure methods. Pairs of reactive complexes related by an elementary reaction are then automatically detected and subjected to an automated search for the connecting transition state. The results are...

  5. An Explorative Approach for Inspecting Kepler Data

    E-Print Network [OSTI]

    Kügler, S D; Polsterer, K L

    2015-01-01

    The Kepler survey has provided a wealth of astrophysical knowledge by continuously monitoring over 150,000 stars. The resulting database contains thousands of examples of known variability types and at least as many that cannot be classified yet. In order to reveal the knowledge hidden in the database, we introduce a new visualisation method that allows us to inspect time series exploratively. To that end, we propose dimensionality reduction on the parameters of a model capable of representing time series as fixed-length vector representation. We show that a more refined objective function can be chosen by minimising the prediction error of the data reconstruction instead of the reconstruction of the model parameters. The proposed visualisation exhibits a strong correlation between the variability behaviour of the light curves and their physical properties. As a consequence, temperature and surface gravity can, for some stars, be directly inferred from non- (or quasi-) periodic light curves.

  6. Geochemical Impacts of Leaking CO2 from Subsurface Storage Reservoirs to an Unconfined Oxidizing Carbonate Aquifer

    SciTech Connect (OSTI)

    Wang, Guohui; Qafoku, Nikolla; Lawter, Amanda R.; Bowden, Mark E.; Harvey, Omar; Sullivan, E. C.; Brown, Christopher F.

    2015-07-15

    A series of batch and column experiments combined with solid phase characterization studies (i.e., quantitative x-ray diffraction and wet chemical extractions) were conducted to address a variety of scientific issues and evaluate the impacts of the potential leakage of carbon dioxide (CO2) from deep subsurface storage reservoirs. The main objective was to gain an understanding of how CO2 gas influences: 1) the aqueous phase pH; and 2) mobilization of major, minor, and trace elements from minerals present in an aquifer overlying potential CO2 sequestration subsurface repositories. Rocks and slightly weathered rocks representative of an unconfined, oxidizing carbonate aquifer within the continental US, i.e., the Edwards aquifer in Texas, were used in these studies. These materials were exposed to a CO2 gas stream or were leached with a CO2-saturated influent solution to simulate different CO2 gas leakage scenarios, and changes in aqueous phase pH and chemical composition were measured in the liquid samples collected at pre-determined experimental times (batch experiments) or continuously (column experiments). The results from the strong acid extraction tests confirmed that in addition to the usual elements present in most soils, rocks, and sediments, the Edward aquifer samples contain As, Cd, Pb, Cu, and occasionally Zn, which may potentially be mobilized from the solid to the aqueous phase during or after exposure to CO2. The results from the batch and column experiments confirmed the release of major chemical elements into the contacting aqueous phase (such as Ca, Mg, Ba, Sr, Si, Na, and K); the mobilization and possible rapid immobilization of minor elements (such as Fe, Al, and Mn), which are able to form highly reactive secondary phases; and sporadic mobilization of only low concentrations of trace elements (such as As, Cd, Pb, Cu, Zn, Mo, etc.). The results from this experimental research effort will help in developing a systematic understanding of how CO2 leakage is likely to influence pertinent geochemical processes (e.g., dissolution/precipitation, sorption/desorption) in the aquifer sediments and will support site selection, risk assessment, policy-making, and public education efforts associated with geologic carbon sequestration.

  7. Final Report: Molecular Basis for Microbial Adhesion and Geochemical Surface Reactions: A Study Across Scales

    SciTech Connect (OSTI)

    Dixon, David Adams

    2013-06-27

    Computational chemistry was used to help provide a molecular level description of the interactions of Gram-negative microbial membranes with subsurface materials. The goal is to develop a better understanding of the molecular processes involved in microbial metal binding, microbial attachment to mineral surfaces, and, eventually, oxidation/reduction reactions (electron transfer) that can occur at these surfaces and are mediated by the bacterial exterior surface. The project focused on the interaction of the outer microbial membrane, which is dominated by an exterior lipopolysaccharide (LPS) portion, of Pseudomonas aeruginosa with the mineral goethite and with solvated ions in the environment. This was originally a collaborative project with T.P. Straatsma and B. Lowery of the Pacific Northwest National Laboratory. The University of Alabama effort used electronic structure calculations to predict the molecular behavior of ions in solution and the behavior of the sugars which form a critical part of the LPS. The interactions of the sugars with metal ions are expected to dominate much of the microscopic structure and transport phenomena in the LPS. This work, in combination with the molecular dynamics simulations of Straatsma and the experimental electrochemistry and microscopy measurements of Lowry, both at PNNL, is providing new insights into the detailed molecular behavior of these membranes in geochemical environments. The effort at The University of Alabama has three components: solvation energies and structures of ions in solution, prediction of the acidity of the critical groups in the sugars in the LPS, and binding of metal ions to the sugar anions. An important aspect of the structure of the LPS membrane as well as ion transport in the LPS is the ability of the sugar side groups such as the carboxylic acids and the phosphates to bind positively charged ions. We are studying the acidity of the acidic side groups in order to better understand the ability of these groups to bind metal ions. We need to understand the solvation properties of the metal ions in solution and their ability to bind not only to the sugars but to proteins and to other anions. Our goal is then to be able to predict the ability of the side groups to bind metal ions. One result from the earlier molecular dynamics simulations is the exclusion of water from the inner hydrophobic part of the membrane. We thus need to investigate the binding of the cations in media with different dielectric constants.

  8. GEOCHEMICAL INVESTIGATIONS OF CO?-BRINE-ROCK INTERACTIONS OF THE KNOX GROUP IN THE ILLINOIS BASIN

    SciTech Connect (OSTI)

    Yoksoulian, Lois; Berger, Peter; Freiburg, Jared; Butler, Shane; Leetaru, Hannes

    2014-09-30

    Increased output of greenhouse gases, particularly carbon dioxide (CO?), into the atmosphere from anthropogenic sources is of great concern. A potential technology to reduce CO? emissions is geologic carbon sequestration. This technology is currently being evaluated in the United States and throughout the world. The geology of the Illinois Basin exhibits outstanding potential as a carbon sequestration target, as demonstrated by the ongoing Illinois Basin – Decatur Project that is using the Mt. Simon Sandstone reservoir and Eau Claire Shale seal system to store and contain 1 million tonnes of CO?. The Knox Group-Maquoketa Shale reservoir and seal system, located stratigraphically above the Mt. Simon Sandstone-Eau Claire Shale reservoir and seal system, has little economic value as a resource for fossil fuels or as a potable water source, making it ideal as a potential carbon sequestration target. In order for a reservoir-seal system to be effective, it must be able to contain the injected CO? without the potential for the release of harmful contaminants liberated by the reaction between CO?-formation fluids and reservoir and seal rocks. This study examines portions of the Knox Group (Potosi Dolomite, Gunter Sandstone, New Richmond Sandstone) and St. Peter Sandstone, and Maquoketa Shale from various locations around the Illinois Basin. A total of 14 rock and fluid samples were exposed to simulated sequestration conditions (9101–9860 kPa [1320–1430 psi] and 32°–42°C [90°– 108°F]) for varying amounts of time (6 hours to 4 months). Knox Group reservoir rocks exhibited dissolution of dolomite in the presence of CO? as indicated by petrographic examination, X-ray diffraction analysis, and fluid chemistry analysis. These reactions equilibrated rapidly, and geochemical modeling confirmed that these reactions reached equilibrium within the time frames of the experiments. Pre-reaction sample mineralogy and postreaction fluid geochemistry from this study suggests only limited potential for the release of United States Environmental Protection Agency regulated inorganic contaminants into potable water sources. Short-term core flood experiments further verify that the carbonate reactions occurring in Knox Group reservoir samples reach equilibrium rapidly. The core flood experiments also lend insight to pressure changes that may occur during CO? injection. The Maquoketa Shale experiments reveal that this rock is initially chemically reactive when in contact with CO? and brine. However, due to the conservative nature of silicate and clay reaction kinetics and the rapid equilibration of carbonate reactions that occur in the shale, these reactions would not present a significant risk to the competency of the shale as an effective seal rock.

  9. Multi-Attribute Tradespace Exploration for Survivability

    E-Print Network [OSTI]

    Ross, Adam Michael

    2013-11-19

    Multi-Attribute Tradespace Exploration for Survivability is a system design and analysis methodology that incorporates survivability considerations into the tradespace exploration process (i.e., a solution-generating and ...

  10. Geological and geochemical aspects of uranium deposits. A selected, annotated bibliography

    SciTech Connect (OSTI)

    Garland, P.A.; Thomas, J.M.; Brock, M.L.; Daniel, E.W.

    1980-06-01

    A bibliography of 479 references encompassing the fields of uranium and thorium geochemistry and mineralogy, geology of uranium deposits, uranium mining, and uranium exploration techniques has been compiled by the Ecological Sciences Information Center of Oak Ridge National Laboratory. The bibliography was produced for the National Uranium Resource Evaluation Program, which is funded by the Grand Junction Office of the Department of Energy. The references contained in the bibliography have been divided into the following eight subject categories: (1) geology of deposits, (2) geochemistry, (3) genesis O deposits, (4) exploration, (5) mineralogy, (6) uranium industry, (7) reserves and resources, and (8) geology of potential uranium-bearing areas. All categories specifically refer to uranium and thorium; the last category contains basic geologic information concerning areas which the Grand Junction Office feels are particularly favorable for uranium deposition. The references are indexed by author, geographic location, quadrangle name, geoformational feature, taxonomic name, and keyword.

  11. Application of geochemical techniques to deduce the reservoir performance of the Palinpinon Geothermal Field, Philippines - an update

    SciTech Connect (OSTI)

    Ramos-Candelaria, M.N.; Garcia, S.E.; Hermoso, D.Z.

    1997-12-31

    Regular monitoring of various geochemical parameters in the water and vapor phases of the production wells at the Palinpinon I and II sectors of the Southern Negros Geothermal Field have been useful in the identification of the dominant reservoir processes occurring related to the present exploitation strategy. Observed geochemical and physical changes in the output of production wells have dictated production and injection strategies adopted to maximize production to meet the steam requirements of the power plant. Correlation of both physical and chemical data have identified the following reservoir processes: (1) Injection breakthrough via the Ticala Fault of the highly mineralized (Cl {approximately}8,000-10,500 mg/kg), isotopically enriched ({delta}{sup 18}O = -3.00{per_thousand}, {delta}{sup 2} H = -39{per_thousand}), and gas depleted brine for wells in the SW and central Puhagan. Injection breakthrough is also occurring in Palinpinon II and has resulted in temperature drops of 5-10{degrees}C.2. Pressure drawdown enhanced boiling in the liquid reservoir with steam separation of 220-240{degrees}C, feeding wells tapping the natural steam zone. However, enhanced drawdown has induced the entry of shallow acid steam condensate fluids in some wells (e.g. OK-7, PN-29D, PN-18D), which if not arrested could reduce production.

  12. Design exploration: engaging a larger user population 

    E-Print Network [OSTI]

    Moore, John Michael

    2009-06-02

    xii Page APPENDIX A DESIGN EXPLORATION STOPWORDS ..........................................125 APPENDIX B ANALYZER STUDY TUTORIALS ....................................................126 APPENDIX C ANALYZER STUDY SCENARIOS...

  13. Pervasive UWB Sensor Networks for Oil exploration

    E-Print Network [OSTI]

    Savazzi, Stefano

    network applications. One of these applications is represented by land seismic exploration for oil and gas reservior. Seismic exploration requires a large number (2000 nodes/sqkm) of sensors to be deployed applications [1]. Land seismic exploration for oil reservoir requires a large number of sensors (geophones

  14. Leasing and Exploration * Seismic geophysical surveys

    E-Print Network [OSTI]

    #12;Leasing and Exploration * Seismic geophysical surveys * Exploratory drilling using various of these incremental steps; leasing and exploration. Subsequent phases of OCS development (production, transportation) prepared by MMS, as well as pertinent research on the bowhead whale and matters related to oil exploration

  15. CAN HYDROGEN WIN?: EXPLORING SCENARIOS FOR HYDROGEN

    E-Print Network [OSTI]

    CAN HYDROGEN WIN?: EXPLORING SCENARIOS FOR HYDROGEN FUELLED VEHICLES by Katherine Aminta Muncaster of Research Project: Can Hydrogen Win?: Exploring Scenarios for Hydrogen Fuelled Vehicles Report No.: 459 explored the conditions under which hydrogen might succeed in Canada's transportation sector in a carbon

  16. Africa: the emphasis is exploration

    SciTech Connect (OSTI)

    Not Available

    1980-08-15

    Individual country reports on drilling, oil and gas production, and petroleum exploration and reserves are given for Africa. Nigeria was the continent's largest oil producer in 1979, averaging 2.3 million bpd, followed closely by Libya with 2.07 million bpd. Algeria cut production of crude oil in 1979 to a level of 1,194,350 bpd, and increased gas production to 2031 mmcfd. In Egypt, the return of Israeli-occupied oil fields and a surge in productive capacity enabled production averaging 524,000 bpd. Brief country reports are included for Gabon, Angola, Republic of the Congo, Cameroun, Tunisia, Morocco, Zaire, Ivory Coast, Ghana, Niger, Chad, Republic of South Africa, Sudan, Tanzania, Equatorial Guinea, Seychelles Islands, Mauritania, Republic of Mali, Benin, Kenya, Madagascar, Botswana, Gambia, Mozambique, and Senegal.

  17. User's Guide of TOUGH2-EGS. A Coupled Geomechanical and Reactive Geochemical Simulator for Fluid and Heat Flow in Enhanced Geothermal Systems Version 1.0

    SciTech Connect (OSTI)

    Fakcharoenphol, Perapon; Xiong, Yi; Hu, Litang; Winterfeld, Philip H.; Xu, Tianfu; Wu, Yu-Shu

    2013-05-01

    TOUGH2-EGS is a numerical simulation program coupling geomechanics and chemical reactions for fluid and heat flows in porous media and fractured reservoirs of enhanced geothermal systems. The simulator includes the fully-coupled geomechanical (THM) module, the fully-coupled geochemical (THC) module, and the sequentially coupled reactive geochemistry (THMC) module. The fully-coupled flow-geomechanics model is developed from the linear elastic theory for the thermo-poro-elastic system and is formulated with the mean normal stress as well as pore pressure and temperature. The chemical reaction is sequentially coupled after solution of flow equations, which provides the flow velocity and phase saturation for the solute transport calculation at each time step. In addition, reservoir rock properties, such as porosity and permeability, are subjected to change due to rock deformation and chemical reactions. The relationships between rock properties and geomechanical and chemical effects from poro-elasticity theories and empirical correlations are incorporated into the simulator. This report provides the user with detailed information on both mathematical models and instructions for using TOUGH2-EGS for THM, THC or THMC simulations. The mathematical models include the fluid and heat flow equations, geomechanical equation, reactive geochemistry equations, and discretization methods. Although TOUGH2-EGS has the capability for simulating fluid and heat flows coupled with both geomechanical and chemical effects, it is up to the users to select the specific coupling process, such as THM, THC, or THMC in a simulation. There are several example problems illustrating the applications of this program. These example problems are described in details and their input data are presented. The results demonstrate that this program can be used for field-scale geothermal reservoir simulation with fluid and heat flow, geomechanical effect, and chemical reaction in porous and fractured media.

  18. Geological and geochemical aspects of uranium deposits: a selected, annotated bibliography. [474 references

    SciTech Connect (OSTI)

    Thomas, J.M.; Garland, P.A.; White, M.B.; Daniel, E.W.

    1980-09-01

    This bibliography, a compilation of 474 references, is the fourth in a series compiled from the National Uranium Resource Evaluation (NURE) Bibliographic Data Base. This data base was created for the Grand Junction Office of the Department of Energy's National Uranium Resource Evaluation Project by the Ecological Sciences Information Center, Oak Ridge National Laboratory. The references in the bibliography are arranged by subject category: (1) geochemistry, (2) exploration, (3) mineralogy, (4) genesis of deposits, (5) geology of deposits, (6) uranium industry, (7) geology of potential uranium-bearing areas, and (8) reserves and resources. The references are indexed by author, geographic location, quadrangle name, geoformational feature, and keyword.

  19. Determination of Diffusion Profiles in Altered Wellbore Cement Using X-ray Computed Tomography Methods

    SciTech Connect (OSTI)

    Mason, Harris E. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Walsh, Stuart D. C. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); DuFrane, Wyatt L. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Carroll, Susan A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2014-06-17

    The development of accurate, predictive models for use in determining wellbore integrity requires detailed information about the chemical and mechanical changes occurring in hardened Portland cements. X-ray computed tomography (XRCT) provides a method that can nondestructively probe these changes in three dimensions. Here, we describe a method for extracting subvoxel mineralogical and chemical information from synchrotron XRCT images by combining advanced image segmentation with geochemical models of cement alteration. The method relies on determining “effective linear activity coefficients” (ELAC) for the white light source to generate calibration curves that relate the image grayscales to material composition. The resulting data set supports the modeling of cement alteration by CO2-rich brine with discrete increases in calcium concentration at reaction boundaries. The results of these XRCT analyses can be used to further improve coupled geochemical and mechanical models of cement alteration in the wellbore environment.

  20. The imprint of methane seepage on the geochemical record and early diagenetic processes in cold-water coral mounds on Pen Duick Escarpment, Gulf of Cadiz

    E-Print Network [OSTI]

    Gilli, Adrian

    The imprint of methane seepage on the geochemical record and early diagenetic processes in cold Keywords: cold-water corals cold-water coral mounds sulfur isotopes sulfate-methane transition zone examined. The influence of ascending methane-rich fluids from underlying sediment strata delineated two

  1. DUNE: The Dark Universe Explorer

    E-Print Network [OSTI]

    A. Refregier; O. Boulade; Y. Mellier; B. Milliard; R. Pain; J. Michaud; F. Safa; A. Amara; P. Astier; E. Barrelet; E. Bertin; S. Boulade; C. Cara; A. Claret; L. Georges; R. Grange; J. Guy; C. Koeck; L. Kroely; C. Magneville; N. Palanque-Delabrouille; N. Regnault; G. Smadja; C. Schimd; Z. Sun

    2006-10-03

    Understanding the nature of Dark Matter and Dark Energy is one of the most pressing issues in cosmology and fundamental physics. The purpose of the DUNE (Dark UNiverse Explorer) mission is to study these two cosmological components with high precision, using a space-based weak lensing survey as its primary science driver. Weak lensing provides a measure of the distribution of dark matter in the universe and of the impact of dark energy on the growth of structures. DUNE will also include a complementary supernovae survey to measure the expansion history of the universe, thus giving independent additional constraints on dark energy. The baseline concept consists of a 1.2m telescope with a 0.5 square degree optical CCD camera. It is designed to be fast with reduced risks and costs, and to take advantage of the synergy between ground-based and space observations. Stringent requirements for weak lensing systematics were shown to be achievable with the baseline concept. This will allow DUNE to place strong constraints on cosmological parameters, including the equation of state parameter of the dark energy and its evolution from redshift 0 to 1. DUNE is the subject of an ongoing study led by the French Space Agency (CNES), and is being proposed for ESA's Cosmic Vision programme.

  2. Exploring laser-driven quantum phenomena from a time-frequency analysis perspective: A comprehensive study

    E-Print Network [OSTI]

    Sheu, Yae-lin; Hsu, Liang-Yan

    2015-01-01

    Time-frequency (TF) analysis is a powerful tool for exploring ultrafast dynamics in atoms and molecules. While some TF methods have demonstrated their usefulness and potential in several of quantum systems, a systematic comparison among these methods is still lacking. To this end, we compare a series of classical and contemporary TF methods by taking hydrogen atom in a strong laser field as a benchmark. In addition, several TF methods such as Cohen class distribution other than the Wigner-Ville distribution, reassignment methods, and the empirical mode decomposition method are first introduced to exploration of ultrafast dynamics. Among these TF methods, the synchrosqueezing transform successfully illustrates the physical mechanisms in the multiphoton ionization regime and in the tunneling ionization regime. Furthermore, an empirical procedure to analyze an unknown complicated quantum system is provided, indicating the versatility of TF analysis as a new viable venue for exploring quantum dynamics.

  3. Data Package of Samples Collected for Hydrogeologic and Geochemical Characterization: 300 Area RI/FS Sediment Cores

    SciTech Connect (OSTI)

    Lindberg, Michael J.; Bjornstad, Bruce N.; Lanigan, David C.; Williams, Benjamin D.

    2011-05-01

    This is a data package for sediment samples received from the 300 FF 5 OU. This report was prepared for CHPRC. Between August 16, 2010 and April 25, 2011 sediment samples were received from 300-FF-5 for geochemical studies. The analyses for this project were performed at the 331 building located in the 300 Area of the Hanford Site. The analyses were performed according to Pacific Northwest National Laboratory (PNNL) approved procedures and/or nationally recognized test procedures. The data sets include the sample identification numbers, analytical results, estimated quantification limits (EQL), and quality control data. The preparatory and analytical quality control requirements, calibration requirements, acceptance criteria, and failure actions are defined in the on-line QA plan 'Conducting Analytical Work in Support of Regulatory Programs' (CAW). This QA plan implements the Hanford Analytical Services Quality Assurance Requirements Documents (HASQARD) for PNNL.

  4. TOUGHREACT User's Guide: A Simulation Program for Non-isothermal Multiphase Reactive geochemical Transport in Variable Saturated Geologic Media

    SciTech Connect (OSTI)

    Xu, Tianfu; Sonnenthal, Eric; Spycher, Nicolas; Pruess, Karsten

    2004-05-24

    Coupled modeling of subsurface multiphase fluid and heat flow, solute transport and chemical reactions can be used for the assessment of mineral alteration in hydrothermal systems, waste disposal sites, acid mine drainage remediation, contaminant transport, and groundwater quality. A comprehensive non-isothermal multi-component reactive fluid flow and geochemical transport simulator, TOUGHREACT, has been developed. A wide range of subsurface thermo-physical-chemical processes is considered under various thermohydrological and geochemical conditions of pressure, temperature, water saturation, and ionic strength. The program can be applied to one-, two- or three-dimensional porous and fractured media with physical and chemical heterogeneity. The model can accommodate any number of chemical species present in liquid, gas and solid phases. A variety of equilibrium chemical reactions are considered, such as aqueous complexation, gas dissolution/exsolution, and cation exchange. Mineral dissolution/precipitation can proceed either subject to local equilibrium or kinetic conditions. Changes in porosity and permeability due to mineral dissolution and precipitation can be considered. Linear adsorption and decay can be included. For the purpose of future extensions, surface complexation by double layer model is coded in the program. Xu and Pruess (1998) developed a first version of a non-isothermal reactive geochemical transport model, TOUGHREACT, by introducing reactive geochemistry into the framework of the existing multi-phase fluid and heat flow code TOUGH2 (Pruess, 1991). Xu, Pruess, and their colleagues have applied the program to a variety of problems such as: (1) supergene copper enrichment (Xu et al, 2001), (2) caprock mineral alteration in a hydrothermal system (Xu and Pruess, 2001a), and (3) mineral trapping for CO{sub 2} disposal in deep saline aquifers (Xu et al, 2003b and 2004a). For modeling the coupled thermal, hydrological, and chemical processes during heater tests at proposed nuclear waste disposal site at Yucca Mountain (Nevada), Sonnenthal and Spycher (2000) and Spycher et al. (2003) enhanced TOUGHREACT on (1) high temperature geochemistry, (2) mineral reactive surface area calculations, and (3) porosity and permeability changes due to mineral alteration. On the other hand, Pruess et al. (1999) updated the TOUGH2 simulator to TOUGH2 V2. The present version of TOUGHREACT was developed by introducing the work of Sonnenthal and Spycher (2000) to the original work of Xu and Pruess (1998), and by replacing TOUGH2 (Pruess, 1991) by TOUGH2 V2 (Pruess et al, 1999). The TOUGHREACT program makes use of ''self-documenting'' features. It is distributed with a number of input data files for sample problems. Besides providing benchmarks for proper code installation, these can serve as self-teaching tutorial in the use of TOUGHREACT, and they provide templates to help jump-start new applications. The fluid and heat flow part of TOUGHREACT is derived from TOUGH2 V2, so in addition to the current manual, users must have manual of the TOUGH2 V2 (Pruess et al., 1999). The present version of TOUGHREACT provides the following different TOUGH2 fluid property or ''EOS'' (equation-of-state) modules: (1) EOS1 for water, or two waters with typical applications to hydrothermal problems, (2) EOS2 for multiphase mixtures of water and CO{sub 2} also with typical applications to hydrothermal problems, (3) EOS3 for multiphase mixtures of water and air with typical applications to vadose zone and nuclear waste disposal problems, (4) EOS4 that has the same capabilities as EOS3 but with vapor pressure lowering effects due to capillary pressure, (5) EOS9 for single phase water (Richards. equation) with typical applications to ambient reactive geochemical transport problems, (6) ECO2 for multiphase mixtures of water, CO{sub 2} and NaCl with typical applications to CO{sub 2} disposal in deep brine aquifers.

  5. Actualistic and Geochemical Modeling of Reservoir Rock, CO2 and Formation Fluid Interaction, Citronelle Oil Field, Alabama

    SciTech Connect (OSTI)

    Weislogel, Amy

    2014-01-31

    This report includes description of the Citronelle field study area and the work carried out in the project to characterize the geology and composition of reservoir rock material and to collect an analyze the geochemical composition of produced fluid waters from the Citronelle field. Reservoir rock samples collected from well bore core were made into thin-sections and assessed for textural properties, including pore types and porosity distribution. Compositional framework grain modal data were collected via point-counting, and grain and cement mineralogy was assessed using SEM-EDS. Geochemistry of fluid samples is described and modeled using PHREEQC. Composition of rock and produced fluids were used as inputs for TOUGHREACT reactive transport modeling, which determined the rock-fluid system was in disequilibrium.

  6. An investigation of the effect of pore scale flow on average geochemical reaction rates using direct numerical simulation

    SciTech Connect (OSTI)

    Rafa, S. Molins; Trebotich, D.; Steefel, C. I.; Shen, C.

    2012-02-01

    The scale-dependence of geochemical reaction rates hinders their use in continuum scale models intended for the interpretation and prediction of chemical fate and transport in subsurface environments such as those considered for geologic sequestration of CO{sub 2}. Processes that take place at the pore scale, especially those involving mass transport limitations to reactive surfaces, may contribute to the discrepancy commonly observed between laboratory-determined and continuum-scale or field rates. Here, the dependence of mineral dissolution rates on the pore structure of the porous media is investigated by means of pore scale modeling of flow and multicomponent reactive transport. The pore scale model is comprised of high performance simulation tools and algorithms for incompressible flow and conservative transport combined with a general-purpose multicomponent geochemical reaction code. The model performs direct numerical simulation of reactive transport based on an operator-splitting approach to coupling transport and reactions. The approach is validated with a Poiseuille flow single-pore experiment and verified with an equivalent 1D continuum-scale model of a capillary tube packed with calcite spheres. Using the case of calcite dissolution as an example, the high resolution model is used to demonstrate that non-uniformity in the flow field at the pore scale has the effect of decreasing the overall reactivity of the system, even when systems with identical reactive surface area are considered. The effect becomes more pronounced as the heterogeneity of the reactive grain packing increases, particularly where the flow slows sufficiently such that the solution approaches equilibrium locally and the average rate becomes transport-limited.

  7. Making Sense of Eating: Exploring Lived Experience and Self-Identity 

    E-Print Network [OSTI]

    Johnson, Anna

    2010-07-01

    This study was designed to explore different experiences of eating and how these relate to a person’s sense of self-identity. Using a fairly recent method of investigation known as Interpretative Phenomenological Analysis ...

  8. A Phenomenological Exploration of Novice Texas English/Language Arts Teachers' Experiences with Media Literacy 

    E-Print Network [OSTI]

    Huie, Allison Martin

    2012-10-19

    This mixed method study employs a phenomenological methodology to explore the experiences of novice secondary Texas English/Language Arts (E/LA) teachers' who integrated media literacy curriculum within their content area ...

  9. "Multiscale Capabilities for Exploring Transport Phenomena in...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: "Multiscale Capabilities for Exploring Transport Phenomena in Batteries": Ab Initio Calculations on Defective LiFePO4 Citation Details In-Document Search Title:...

  10. EIA - Analysis of Natural Gas Exploration & Reserves

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Exploration & Reserves 2009 U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves 2008 Annual Report Categories: Resources & Reserves (Released, 10292009, PDF, XLS, and...

  11. High Precision Geophysics & Detailed Structural Exploration ...

    Open Energy Info (EERE)

    reservoir and identification of deep up flow targets. These surveys and the drilling process have been designed to severely limit the impact of the exploration. The geophysics...

  12. Validation of Innovative Exploration Technologies for Newberry...

    Open Energy Info (EERE)

    F. Waibel, Project Manager, Newberry Geothermal Holdings, LLC Targets Milestones -Lower the cost and risk of resource exploration -Open up new regions for commercial...

  13. Transitioning the Transportation Sector: Exploring the Intersection...

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

    held the Transitioning the Transportation Sector: Exploring the Intersection of Hydrogen Fuel Cell and Natural Gas Vehicles workshop in Washington, D.C., on September 9, 2014....

  14. Innovative Exploration Techniques for Geothermal Assessment at...

    Open Energy Info (EERE)

    determine the fracture surface area, heat content and heat transfer, flow rates, and chemistry of the geothermal fluids encountered by the exploration wells. - Write final report...

  15. Geographic Information Systems- Tools For Geotherm Exploration...

    Open Energy Info (EERE)

    Information Systems- Tools For Geotherm Exploration, Tracers Data Analysis, And Enhanced Data Distribution, Visualization, And Management Jump to: navigation, search OpenEI...

  16. Exploration of photon-number entangled states using weak nonlinearities

    E-Print Network [OSTI]

    Yingqiu He; Dong Ding; Fengli Yan; Ting Gao

    2015-04-03

    A method for exploring photon-number entangled states with weak nonlinearities is described. We show that it is possible to create and detect such entanglement at various scales, ranging from microscopic to macroscopic systems. In the present architecture, we suggest that the maximal phase shift induced in the process of interaction between photons is proportional to photon numbers. Also, in the absence of decoherence we analyze maximum error probability and show its feasibility with current technology.

  17. From Question Answering to Visual Exploration

    SciTech Connect (OSTI)

    McColgin, Dave W.; Gregory, Michelle L.; Hetzler, Elizabeth G.; Turner, Alan E.

    2006-08-11

    Research in Question Answering has focused on the quality of information retrieval or extraction using the metrics of precision and recall to judge success; these metrics drive toward finding the specific best answer(s) and are best supportive of a lookup type of search. These do not address the opportunity that users? natural language questions present for exploratory interactions. In this paper, we present an integrated Question Answering environment that combines a visual analytics tool for unstructured text and a state-of-the-art query expansion tool designed to compliment the cognitive processes associated with an information analysts work flow. Analysts are seldom looking for factoid answers to simple questions; their information needs are much more complex in that they may be interested in patterns of answers over time, conflicting information, and even related non-answer data may be critical to learning about a problem or reaching prudent conclusions. In our visual analytics tool, questions result in a comprehensive answer space that allows users to explore the variety within the answers and spot related information in the rest of the data. The exploratory nature of the dialog between the user and this system requires tailored evaluation methods that better address the evolving user goals and counter cognitive biases inherent to exploratory search tasks.

  18. Engineering Exploration Day Saturday, February 13, 2010

    E-Print Network [OSTI]

    Rutledge, Steven

    Engineering Exploration Day Saturday, February 13, 2010 Fort Collins, Colorado #12;2 EXPLORATION Engineering, Dr. Ken Reardon LSC Room 224-226 Electrical & Computer Engineering, Karen Ungerer LSC Room 228 Environmental Engineering, Dr. Sybil Sharvelle LSC Room 230 Mechanical Engineering, Dr. Patrick Fitzhorn

  19. Monitoring CO2 Intrusion and Associated Geochemical Transformations in a Shallow Groundwater System Using Complex

    E-Print Network [OSTI]

    Hubbard, Susan

    Geologic carbon sequestration, which aims to capture and inject carbon dioxide (CO2) into deep subsurface Using Complex Electrical Methods Baptiste Dafflon,, * Yuxin Wu, Susan S. Hubbard, Jens T. Birkholzer: The risk of CO2 leakage from a properly permitted deep geologic storage facility is expected to be very low

  20. Mercury Geochemical, Groundwater Geochemical, And Radiometric...

    Open Energy Info (EERE)

    mapping structure because of the masking effect of widespread alluvial deposits. At the Salt Wells prospect, the 26 station sample line crosses a previously mapped basinplaya...

  1. Mercury Geochemical, Groundwater Geochemical, And Radiometric Geophysical

    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 PltMercurius Biofuels

  2. DAMAGE DETECTION METHODS ON WIND TURBINE BLADE TESTING WITH WIRED AND WIRELESS ACCELEROMETER SENSORS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    DAMAGE DETECTION METHODS ON WIND TURBINE BLADE TESTING WITH WIRED AND WIRELESS ACCELEROMETER degrees of damage. Excitation was performed in two ways: near the delamination zone to demonstrate their performance. We explore methods for determining damage. We first explore results

  3. Adventures in supercomputing: Scientific exploration in an era of change

    SciTech Connect (OSTI)

    Gentry, E.; Helland, B.; Summers, B.

    1997-11-01

    Students deserve the opportunity to explore the world of science surrounding them. Therefore it is important that scientific exploration and investigation be a part of each student`s educational career. The Department of Energy`s Adventures in Superconducting (AiS) takes students beyond mere scientific literacy to a rich embodiment of scientific exploration. AiS provides today`s science and math students with a greater opportunity to investigate science problems, propose solutions, explore different methods of solving the problem, organize their work into a technical paper, and present their results. Students learn at different rates in different ways. Science classes with students having varying learning styles and levels of achievement have always been a challenge for teachers. The AiS {open_quotes}hands-on, minds-on{close_quotes} project-based method of teaching science meets the challenge of this diversity heads on! AiS uses the development of student chosen projects as the means of achieving a lifelong enthusiasm for scientific proficiency. One goal of AiS is to emulate the research that takes place in the everyday environment of scientists. Students work in teams and often collaborate with students nationwide. With the help of mentors from the academic and scientific community, students pose a problem in science, investigate possible solutions, design a mathematical and computational model for the problem, exercise the model to achieve results, and evaluate the implications of the results. The students then have the opportunity to present the project to their peers, teachers, and scientists. Using this inquiry-based technique, students learn more than science skills, they learn to reason and think -- going well beyond the National Science Education Standard. The teacher becomes a resource person actively working together with the students in their quest for scientific knowledge.

  4. Topographic and Air-Photo Lineaments in Various Locations Related to Geothermal Exploration in Colorado

    SciTech Connect (OSTI)

    Zehner, Richard

    2012-02-01

    Title: Topographic and Air-Photo Lineaments in Various Locations Related to Geothermal Exploration in Colorado Tags: Colorado, lineaments, air-photo, geothermal Summary: These line shapefiles trace apparent topographic and air-photo lineaments in various counties in Colorado. It was made in order to identify possible fault and fracture systems that might be conduits for geothermal fluids, as part of a DOE reconnaissance geothermal exploration program. Description: Geothermal fluids commonly utilize fault and fractures in competent rocks as conduits for fluid flow. Geothermal exploration involves finding areas of high near-surface temperature gradients, along with a suitable “plumbing system” that can provide the necessary permeability. Geothermal power plants can sometimes be built where temperature and flow rates are high. This line shapefile is an attempt to use desktop GIS to delineate possible faults and fracture orientations and locations in highly prospective areas prior to an initial site visit. Geochemical sampling and geologic mapping could then be centered around these possible faults and fractures. To do this, georeferenced topographic maps and aerial photographs were utilized in an existing GIS, using ESRI ArcMap 10.0 software. The USA_Topo_Maps and World_Imagery map layers were chosen from the GIS Server at server.arcgisonline.com, using a UTM Zone 13 NAD27 projection. This line shapefile was then constructed over that which appeared to be through-going structural lineaments in both the aerial photographs and topographic layers, taking care to avoid manmade features such as roads, fence lines, and utility right-of-ways. Still, it is unknown what actual features these lineaments, if they exist, represent. Although the shapefiles are arranged by county, not all areas within any county have been examined for lineaments. Work was focused on either satellite thermal infrared anomalies, known hot springs or wells, or other evidence of geothermal systems. Finally, lineaments may be displaced somewhat from their actual location, due to such factors as shadow effects with low sun angles in the aerial photographs. Projection Information: UTM Zone 13 NAD 27 projection Credits: These lineament shapefile was created by Geothermal Development Associates, as part of a geothermal geologic reconnaissance performed by Flint Geothermal, LLC, of Denver Colorado. Funding was provided in part by DOE Grant DE-EEE0002828. Use Limitation These shapefiles was constructed as an aid to geothermal exploration in preparation for a site visit for field checking. We make no claims as to the existence of the lineaments, their location, orientation, and/or nature.

  5. Exploring the Nature of Matter | Jefferson Lab

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

    of matter." And you might ask, what do they mean? At Jefferson Laboratory, we scatter electrons like Hofstadter did in the '50s when he explored nuclei. That's why one of our roads...

  6. Design exploration through bidirectional modeling of constraints

    E-Print Network [OSTI]

    Kilian, Axel, 1971-

    2006-01-01

    Today digital models for design exploration are not used to their full potential. The research efforts in the past decades have placed geometric design representations firmly at the center of digital design environments. ...

  7. Wind Power Integration: Exploring Impacts and Alternatives

    E-Print Network [OSTI]

    Walter, M.Todd

    Wind Power Integration: Exploring Impacts and Alternatives Assist. Prof. C sustainable sources of energy. The idea of harnessing wind energy has been there have been no less than fifteen in-depth wind integration studies

  8. Independent focuses Philippines exploration on Visayan basin

    SciTech Connect (OSTI)

    Rillera, F.G.

    1995-08-21

    Cophil Exploration Corp., a Filipino public company, spearheaded 1995 Philippine oil and gas exploration activity with the start of its gas delineation drilling operations in Libertad, northern Cebu. Cophil and its Australian partners, Coplex Resources NL and PacRim Energy NL, have set out to complete a seven well onshore drilling program within this block this year. The companies are testing two modest shallow gas plays, Libertad and Dalingding, and a small oil play, Maya, all in northern Cebu about 500 km southeast of Manila. Following a short discussion on the geology and exploration history of the Visayan basin, this article briefly summarizes Cophil`s ongoing Cebu onshore drilling program. Afterwards, discussion focuses on identified exploration opportunities in the basin`s offshore sector.

  9. A design exploration for Rotch Library

    E-Print Network [OSTI]

    Pieszak, Jennifer

    1983-01-01

    This thesis is a design exploration of interior vertical space and light in the context of a university architectural library. More specifically, a program for Massachusetts Institute of Technology' s Rotch Library will ...

  10. The Mission of the Mars Exploration Rovers

    ScienceCinema (OSTI)

    Grant, John [Smithsonian Institution, Washington, D.C., United States

    2010-01-08

    The Mars Exploration Rover mission was expected to last 3 months, but has continued for more than 4 years. The major science results from both rovers will be summarized.

  11. Edinburgh Research Explorer Flights of Fancy

    E-Print Network [OSTI]

    Millar, Andrew J.

    of this data were explored through processes of 3D printing and 2D pattern making and digital video Messenger (2012) installation at Tatton Park Biennial, 2012 The production of miniature 3D prints

  12. "Exploring novel biomaterial approaches to address

    E-Print Network [OSTI]

    Zhigilei, Leonid V.

    "Exploring novel biomaterial approaches to address neurodegenerative diseases and injuries Engineering and Biomaterials Research Group Neural regeneration within the central nervous system (CNS to help effectively translate them to the clinic. We propose an innovative combination of biomaterial

  13. Gerd Kortemeyer Explorations in Instructional Technology

    E-Print Network [OSTI]

    Gerd Kortemeyer Explorations in Instructional Technology Brownbag Seminar February 2011 #12; Today into the LON-CAPA course management functionality #12;Full featured course management system Discussions Drop Discussions Time Management #12; Shared Learning Content Management #12; Randomized problems: different

  14. NASA ADMINISTRATOR'S SYMPOSIUM Risk and Exploration

    E-Print Network [OSTI]

    Rhoads, James

    NASA ADMINISTRATOR'S SYMPOSIUM Risk and Exploration E A R T H , S E A A N D T H E S TA R S STEVEN J, NASA administrator's symposium, September 26-29, 2004, Naval Postgraduate School Monterey, California 2005 910'.9--dc22 2005004470 #12;Risk and Exploration E A R T H , S E A A N D T H E S TA R S NASA

  15. Isotopic and geochemical tracers for U(VI) reduction and U mobility at an in situ recovery U mine

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Basu, Anirban; Brown, Shaun T.; Christensen, John N.; DePaolo, Donald J.; Reimus, Paul W.; Heikoop, Jeffrey M.; Woldegabriel, Giday; Simmons, Ardyth M.; House, Brian M.; Hartmann, Matt; et al

    2015-05-19

    In situ recovery (ISR) uranium (U) mining mobilizes U in its oxidized hexavalent form (U(VI)) by oxidative dissolution of U from the roll-front U deposits. Post-mining natural attenuation of residual U(VI) at ISR mines is a potential remediation strategy. Detection and monitoring of naturally occurring reducing subsurface environments are important for successful implementation of this remediation scheme. We used the isotopic tracers ˛ł?U/˛ł?U (?˛ł?U), ˛ł?U/˛ł?U activity ratio, and ł?S/ł˛S (?ł?S), and geochemical measurements of U ore and groundwater collected from 32 wells located within, upgradient, and downgradient of a roll-front U deposit to detect U(VI) reduction and U mobility atmore »an ISR mining site at Rosita, TX, USA. The ?˛ł?U in Rosita groundwater varies from 0.61‰ to -2.49‰, with a trend toward lower ?˛ł?U in downgradient wells. The concurrent decrease in U(VI) concentration and ?˛ł?U with an ? of 0.48‰ ± 0.08‰ is indicative of naturally occurring reducing environments conducive to U(VI) reduction. Additionally, characteristic ˛ł?U/˛ł?U activity ratio and ?ł?S values may also be used to trace the mobility of the ore zone groundwater after mining has ended. These results support the use of U isotope-based detection of natural attenuation of U(VI) at Rosita and other similar ISR mining sites.« less

  16. Solid phase evolution in the Biosphere 2 hillslope experiment as predicted by modeling of hydrologic and geochemical fluxes

    SciTech Connect (OSTI)

    Dontsova, K.; Steefel, C.I.; Desilets, S.; Thompson, A.; Chorover, J.

    2009-07-15

    A reactive transport geochemical modeling study was conducted to help predict the mineral transformations occurring over a ten year time-scale that are expected to impact soil hydraulic properties in the Biosphere 2 (B2) synthetic hillslope experiment. The modeling sought to predict the rate and extent of weathering of a granular basalt (selected for hillslope construction) as a function of climatic drivers, and to assess the feedback effects of such weathering processes on the hydraulic properties of the hillslope. Flow vectors were imported from HYDRUS into a reactive transport code, CrunchFlow2007, which was then used to model mineral weathering coupled to reactive solute transport. Associated particle size evolution was translated into changes in saturated hydraulic conductivity using Rosetta software. We found that flow characteristics, including velocity and saturation, strongly influenced the predicted extent of incongruent mineral weathering and neo-phase precipitation on the hillslope. Results were also highly sensitive to specific surface areas of the soil media, consistent with surface reaction controls on dissolution. Effects of fluid flow on weathering resulted in significant differences in the prediction of soil particle size distributions, which should feedback to alter hillslope hydraulic conductivities.

  17. Final Report: Improved Site Characterization And Storage Prediction Through Stochastic Inversion Of Time-Lapse Geophysical And Geochemical Data

    SciTech Connect (OSTI)

    Ramirez, A; Mcnab, W; Hao, Y; White, D; Johnson, J

    2011-04-14

    During the last months of this project, our project activities have concentrated on four areas: (1) performing a stochastic inversion of pattern 16 seismic data to deduce reservoir bulk/shear moduli and density; the need for this inversion was not anticipated in the original scope of work, (2) performing a stochastic inversion of pattern 16 seismic data to deduce reservoir porosity and permeability, (3) complete the software needed to perform geochemical inversions and (4) use the software to perform stochastic inversion of aqueous chemistry data to deduce mineral volume fractions. This report builds on work described in progress reports previously submitted (Ramirez et al., 2009, 2010, 2011 - reports fulfilled the requirements of deliverables D1-D4) and fulfills deliverable D5: Field-based single-pattern simulations work product. The main challenge with our stochastic inversion approach is its large computational expense, even for single reservoir patterns. We dedicated a significant level of effort to improve computational efficiency but inversions involving multiple patterns were still intractable by project's end. As a result, we were unable to fulfill Deliverable D6: Field-based multi-pattern simulations work product.

  18. A Numerical Evaluation Of Electromagnetic Methods In Geothermal...

    Open Energy Info (EERE)

    Methods In Geothermal Exploration - Discussion Author M. Poddar Published Journal Geophysics, 1997 DOI Not Provided Check for DOI availability: http:crossref.org Citation M....

  19. Petroleum potential of the Upper Ordovician Maquoketa Group in Illinois: A coordinated geological and geochemical study

    SciTech Connect (OSTI)

    Crockett, J.E.; Oltz, D.F. ); Kruge, M.A. )

    1990-05-01

    The Ordovician Maquoketa Group in Illinois, predominantly composed of shale, calcareous shale, and carbonates, has long been considered a potential source for Illinois basin hydrocarbons. Methods used to better define the petroleum potential of the Maquoketa in the Illinois basin were lithostratigraphic study, Rock-Eval (pyrolysis) analyses, comparison of molecular markers from whole-rock extracts and produced oil, and construction of burial history models. Organic-rich submature Maquoketa potential source rocks are present in western Illinois at shallow depths on the basin flank. Deeper in the basin in southern Illinois, Rock-Eval analyses indicate that the Maquoketa shale is within the oil window. Solvent extracts of the Maquoketa from western Illinois closely resemble the Devonian New Albany Shale, suggesting that past studies may have erroneously attributed Maquoketa-generated petroleum to a New Albany source or failed to identify mixed source oils. Subtle differences between Maquoketa and New Albany solvent extracts include differences in pristane/phytane ratios, proportions of steroids, and distribution of dimethyldibenzothiophene isomers. Maquoketa solvent extracts show little resemblance to Middle Ordovician oils from the Illinois or Michigan basins. Lithostratigraphic studies identified localized thick carbonate facies in the Maquoketa, suggesting depositional response to upper Ordovician paleostructures. Sandstone facies in the Maquoketa in southwestern Illinois offer a potential source/trap play, as well as serving as potential carrier beds for hydrocarbon migration. Maquoketa source and carrier beds may feed older Ordovician rocks in faulted areas along and south of the Cottage Grove fault system in southern Illinois.

  20. Automated Design Space Exploration with Aspen

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Spafford, Kyle L.; Vetter, Jeffrey S.

    2015-01-01

    Architects and applications scientists often use performance models to explore a multidimensional design space of architectural characteristics, algorithm designs, and application parameters. With traditional performance modeling tools, these explorations forced users to first develop a performance model and then repeatedly evaluate and analyze the model manually. These manual investigations proved laborious and error prone. More importantly, the complexity of this traditional process often forced users to simplify their investigations. To address this challenge of design space exploration, we extend our Aspen (Abstract Scalable Performance Engineering Notation) language with three new language constructs: user-defined resources, parameter ranges, and a collection ofmore »costs in the abstract machine model. Then, we use these constructs to enable automated design space exploration via a nonlinear optimization solver. We show how four interesting classes of design space exploration scenarios can be derived from Aspen models and formulated as pure nonlinear programs. The analysis tools are demonstrated using examples based on Aspen models for a three-dimensional Fast Fourier Transform, the CoMD molecular dynamics proxy application, and the DARPA Streaming Sensor Challenge Problem. Our results show that this approach can compose and solve arbitrary performance modeling questions quickly and rigorously when compared to the traditional manual approach.« less

  1. MATHEMATICS AND COMPUTER SCIENCE: EXPLORING A SYMBIOTIC RELATIONSHIP

    E-Print Network [OSTI]

    Simonson, Shai

    MATHEMATICS AND COMPUTER SCIENCE: EXPLORING A SYMBIOTIC RELATIONSHIP Authors: Ralph Bravaco Shai, Fractals, Chaos, Number Theory and Cryptography, Problem Solving, Other #12;Mathematics and Computer Science: Exploring a Symbiotic Relationship 1 MATHEMATICS AND COMPUTER SCIENCE: EXPLORING A SYMBIOTIC

  2. CORE-BASED INTEGRATED SEDIMENTOLOGIC, STRATIGRAPHIC, AND GEOCHEMICAL ANALYSIS OF THE OIL SHALE BEARING GREEN RIVER FORMATION, UINTA BASIN, UTAH

    SciTech Connect (OSTI)

    Lauren P. Birgenheier; Michael D. Vanden Berg,

    2011-04-11

    An integrated detailed sedimentologic, stratigraphic, and geochemical study of Utah's Green River Formation has found that Lake Uinta evolved in three phases (1) a freshwater rising lake phase below the Mahogany zone, (2) an anoxic deep lake phase above the base of the Mahogany zone and (3) a hypersaline lake phase within the middle and upper R-8. This long term lake evolution was driven by tectonic basin development and the balance of sediment and water fill with the neighboring basins, as postulated by models developed from the Greater Green River Basin by Carroll and Bohacs (1999). Early Eocene abrupt global-warming events may have had significant control on deposition through the amount of sediment production and deposition rates, such that lean zones below the Mahogany zone record hyperthermal events and rich zones record periods between hyperthermals. This type of climatic control on short-term and long-term lake evolution and deposition has been previously overlooked. This geologic history contains key points relevant to oil shale development and engineering design including: (1) Stratigraphic changes in oil shale quality and composition are systematic and can be related to spatial and temporal changes in the depositional environment and basin dynamics. (2) The inorganic mineral matrix of oil shale units changes significantly from clay mineral/dolomite dominated to calcite above the base of the Mahogany zone. This variation may result in significant differences in pyrolysis products and geomechanical properties relevant to development and should be incorporated into engineering experiments. (3) This study includes a region in the Uinta Basin that would be highly prospective for application of in-situ production techniques. Stratigraphic targets for in-situ recovery techniques should extend above and below the Mahogany zone and include the upper R-6 and lower R-8.

  3. Geochemical information for sites contaminated with low-level radioactive wastes: II. St. Louis Airport Storage Site

    SciTech Connect (OSTI)

    Seeley, F.G.; Kelmers, A.D.

    1985-01-01

    The St. Louis Airport Storage Site (SLASS) became radioactively contaminated as a result of wastes that were being stored from operations to recover uranium from pitchblende ores in the 1940s and 1950s. The US Department of Energy is considering various remedial action options for the SLASS under the Formerly Utilized Site Remedial Action Program (FUSRAP). This report describes the results of geochemical investigations, carried out to support the FUSRAP activities and to aid in quantifying various remedial action options. Soil and groundwater samples from the site were characterized, and sorption ratios for uranium and radium and apparent concentration limit values for uranium were measured in soil/groundwater systems by batch contact methodology. The uranium and radium concentrations in soil samples were significantly above background near the old contaminated surface horizon (now at the 0.3/sup -/ to 0.9/sup -/m depth); the maximum values were 1566 ..mu..g/g and 101 pCi/g, respectively. Below about the 6/sup -/m depth, the concentrations appeared to be typical of those naturally present in soils of this area (3.8 +- 1.2 ..mu..g/g and 3.1 +- 0.6 pCi/g). Uranium sorption ratios showed stratigraphic trends but were generally moderate to high (100 to 1000 L/kg). The sorption isotherm suggested an apparent uranium concentration limit of about 200 mg/L. This relatively high solubility can probably be correlated with the carbonate content of the soil/groundwater systems. The lower sorption ratio values obtained from the sorption isotherm may have resulted from changes in the experimental procedure or the groundwater used. The SLASS appears to exhibit generally favorable behavior for the retardation of uranium solubilized from waste in the site. Parametric tests were conducted to estimate the sensitivity of uranium sorption and solubility to the pH and carbonate content of the system.

  4. Geochemical study of evaporite and clay mineral-oxyhydroxide samples from the Waste Isolation Pilot Plant site

    SciTech Connect (OSTI)

    Brookins, D.G. [Univ. of New Mexico, Albuquerque, NM (US). Dept. of Geology

    1993-06-01

    Samples of clay minerals, insoluble oxyhydroxides, and their host evaporites from the WIPP site have been studied for their major and minor elements abundances, x-ray diffraction characteristics, K-Ar ages, and Rb-Sr ages. This study was undertaken to determine their overall geochemical characteristics and to investigate possible interactions between evaporates and insoluble constituents. The evaporite host material is water-soluble, having Cl/Br ratios typical of marine evaporites, although the Br content is low. Insoluble material (usually a mixture of clay minerals and oxyhydroxide phases) yields very high Cl/Br ratios, possibly because of Cl from admixed halide minerals. This same material yields K/Rb and Th/U ratios in the normal range for shales; suggesting little, if any, effect of evaporite-induced remobilization of U, K, or Rb in the insoluble material. The rare-earth element (REE) data also show normal REE/chondrite (REE/CHON) distribution patterns, supporting the K/Rb and Th/U data. Clay minerals yield K-Ar dates in the range 365 to 390 Ma and a Rb-Sr isochron age of 428 {+-} 7 Ma. These ages are well in excess of the 220- to 230-Ma formational age of the evaporites, and confirm the detrital origin of the clays. The ages also show that any evaporite or clay mineral reactions that might have occurred at or near the time of sedimentation and diagenesis were not sufficient to reset the K-Ar and Rb-Sr systematics of the clay minerals. Further, x-ray data indicate a normal evaporitic assemblage of clay minerals and Fe-rich oxyhydroxide phases. The clay minerals and other insoluble material appear to be resistant to the destructive effects of their entrapment in the evaporites, which suggests that these insoluble materials would be good getters for any radionuclides (hypothetically) released from the storage of radioactive wastes in the area.

  5. Exploring the Deep... Exploring the Ocean Environment Unit 4Marine Productivity

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    that consumes other organisms. Figure 2. Simple marine food chain. Arrows represent the transfer of energy fromGEO/OC 103 Exploring the Deep... Lab 7 #12;Exploring the Ocean Environment Unit 4­Marine Productivity 123 Unit 4 Marine Productivity Inthisunit,youwill · Discoverpatternsinglobalprimaryproductivity

  6. SOFTWARE Open Access EpiExplorer: live exploration and global analysis

    E-Print Network [OSTI]

    Waldmann, Uwe

    datasets. Here we describe EpiExplorer, a web tool for exploring genome and epigenome data on a genomic genes [1,2]. High-throughput genomic mapping technologies have recently emerged as a complementary and epigenetic regulation for the human and mouse genomes [4-7]. Substantial potential for discovery lies

  7. Exploring the Deep... Exploring the Dynamic Earth Unit 5 Tsunami Hazards

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    GEO/OC 103 Exploring the Deep... Lab 6 #12;Exploring the Dynamic Earth Unit 5 ­Tsunami Hazards Unit 5 Tsunami Hazards Inthisunit,youwill · Analyzetwomajortsunamieventsindetail the coast of Chile on May 22, 1960 produced a tsunami that affected the entire Pacific Basin. In Hilo

  8. Atomic Energy Commission Explores Peaceful Uses of Nuclear Explosions...

    National Nuclear Security Administration (NNSA)

    Our Jobs Working at NNSA Blog Home About Us Our History NNSA Timeline Atomic Energy Commission Explores Peaceful Uses of ... Atomic Energy Commission Explores Peaceful...

  9. Full Reviews: Low-temperature and Exploration Demonstration Projects...

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

    Low-temperature and Exploration Demonstration Projects Full Reviews: Low-temperature and Exploration Demonstration Projects Below are the project presentations and respective peer...

  10. NASA agreements advance Mars exploration, Los Alamos Rover instrument...

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

    NASA agreements advance Mars exploration NASA agreements advance Mars exploration, Los Alamos Rover instrument a key component Los Alamos National Laboratory is coordinating with...

  11. DAME: a Web Oriented Infrastructure for Scientific Data Mining & Exploration

    E-Print Network [OSTI]

    Longo, Giuseppe

    DAME: a Web Oriented Infrastructure for Scientific Data Mining & Exploration Massimo Bresciaa (DAta Mining & Exploration) is an innovative, general purpose, Web-based, VObs compliant, distributed

  12. How Much Do Local Regulations Matter? Exploring the Impact of...

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

    Regulations Matter? Exploring the Impact of Permitting and Local Regulatory Processes on PV Prices in the United States How Much Do Local Regulations Matter? Exploring the Impact...

  13. Exploring new physics through contact interactions in lepton...

    Office of Scientific and Technical Information (OSTI)

    Conference: Exploring new physics through contact interactions in lepton pair production at a linear collider Citation Details In-Document Search Title: Exploring new physics...

  14. Exploring Wind Energy (12 activities) | Department of Energy

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

    Exploring Wind Energy (12 activities) Exploring Wind Energy (12 activities) Below is information about the student activitylesson plan from your search. Grades 9-12 Subject Energy...

  15. Fighting the curse of dimensionality: compressive sensing in exploration seismology

    E-Print Network [OSTI]

    Yilmaz, Ozgur

    1 Fighting the curse of dimensionality: compressive sensing in exploration seismology Felix J problems in seismic exploration to effectively fight the curse of dimensionality. Index Terms

  16. Exploring Advanced Combustion Regimes for Efficiency and Emissions...

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

    Exploring Advanced Combustion Regimes for Efficiency and Emissions Exploring Advanced Combustion Regimes for Efficiency and Emissions 2003 DEER Conference Presentation: Oak Ridge...

  17. Promising future of quantum dots explored in conference

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

    Promising future of quantum dots explored Promising future of quantum dots explored in conference Researchers are gathering to reflect on two decades of quantum dot research at a...

  18. V-149: Microsoft Internet Explorer Object Access Bug Lets Remote...

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

    Microsoft Internet Explorer Object Access Bug Lets Remote Users Execute Arbitrary Code PLATFORM: Internet Explorer 8 ABSTRACT: A vulnerability was reported in Microsoft Internet...

  19. U-262: Microsoft Internet Explorer Flaw Lets Remote Users Execute...

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

    Microsoft Internet Explorer Flaw Lets Remote Users Execute Arbitrary Code PLATFORM: Internet Explorer 6, 7, 8, 9 ABSTRACT: A vulnerability was reported in Microsoft Internet...

  20. How Much Do Local Regulations Matter? Exploring the Impact of...

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

    Matter? Exploring the Impact of Permitting and Local Regulatory Processes on PV Prices in the United States How Much Do Local Regulations Matter? Exploring the Impact of...

  1. Building America Expert Meeting: Exploring the Disconnect Between...

    Office of Environmental Management (EM)

    Exploring the Disconnect Between Rated and Field Performance of Water Heating Systems Building America Expert Meeting: Exploring the Disconnect Between Rated and Field Performance...

  2. "EXPLORING THE WARPED AND VIOLENT UNIVERSE", Prof. Nergis Mavalvala...

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

    January 28, 2012, 9:30am Science On Saturday "EXPLORING THE WARPED AND VIOLENT UNIVERSE", Prof. Nergis Mavalvala, Dept. of Physics, Massachussetts Institute of Technology EXPLORING...

  3. Lagrangian methods for ballistic impact simulations/

    E-Print Network [OSTI]

    Tupek, Michael Ronne

    2010-01-01

    This thesis explores various Lagrangian methods for simulating ballistic impact with the ultimate goal of finding a universal, robust and scalable computational framework to assist in the design of armor systems. An overview ...

  4. Exploring Virtual Depth for Automotive Instrument Cluster

    E-Print Network [OSTI]

    Exploring Virtual Depth for Automotive Instrument Cluster Concepts Nora Broy1,2,3 , Benedikt Zierer instrument cluster. Permission to make digital or hard copies of part or all of this work for personal more pronounced as auto-stereoscopic displays become available for the car. For instance, H¨akkil¨a et

  5. Orion Flight Test Exploration Flight Test-1

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Orion Flight Test Exploration Flight Test-1 PRESS KIT/December 2014 www.nasa.gov NP-2014-11-020-JSC National Aeronautics and Space Administration #12;#12;Orion Flight Test December 2014 Contents Section Page ........................................................................................... 28 i #12;Orion Flight Test ii December 2014 #12;Orion Flight Test December 2014 Flight Overview

  6. Middle School "Exploration" Engineering Challenge Camp

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Middle School "Exploration" Engineering Challenge Camp Hosted by the West Virginia University ESB Lunabotics Team 1:00 p.m. Kerbal Space Program MRB 243 Daytime Counselors 2:00 p.m. Build a Camera 107 MRB Daytime Counselors 9:30 a.m. Biometrics Activity Stations ESB Atrium Biometric Research Team

  7. Exploring Low Emission Lubricants for Diesel Engines

    SciTech Connect (OSTI)

    Perez, J. M.

    2000-07-06

    A workshop to explore the technological issues involved with the removal of sulfur from lubricants and the development of low emission diesel engine oils was held in Scottsdale, Arizona, January 30 through February 1, 2000. It presented an overview of the current technology by means of panel discussions and technical presentations from industry, government, and academia.

  8. Exploring Energy Efficiency of Lightweight Block Ciphers

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Exploring Energy Efficiency of Lightweight Block Ciphers Subhadeep Banik1 , Andrey Bogdanov1 of r at which an r-round unrolled architecture for a cipher is likely to be most energy efficient. We of the metrics that define a good lightweight design is the energy consumed per unit operation of the algorithm

  9. Exploring the Deep... Using ArcMap

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    started Exploring the Ocean Environment Introduction #12;The ArcMap User Interface Table of Contents off the layers above that layer in the Table of Contents. Table of Contents A list of data frames of the current map file. Coordinates Displays the coordinates, in the currently-selected units, of the cursor

  10. Active Visual Scene Exploration Eric Sommerlade

    E-Print Network [OSTI]

    Oxford, University of

    of its gaze direction. Quantitative and qualitative validation show the increase in performance whenActive Visual Scene Exploration Eric Sommerlade Brasenose College D.Phil. Thesis Supervised by Dr Term 2010 This thesis is submitted to the Department of Engineering Science, University of Oxford

  11. TRESSA: Teamed Robots for Exploration and Science

    E-Print Network [OSTI]

    Huntsberger, Terry

    fielded. These systems include single as well as teams of robots. TRESSA Teamed Robots for Exploration. In this paper, we present results from field demonstrations of the TRESSA system in even more challenging in Endurance Crater and Cape Verde at Victoria Crater on Mars. A deep drilling mission is logistically

  12. Edinburgh Research Explorer Integrated Magnetic MEMS Relays

    E-Print Network [OSTI]

    Millar, Andrew J.

    Edinburgh Research Explorer Integrated Magnetic MEMS Relays Citation for published version: Schiavone, G, Desmulliez, MPY & Walton, AJ 2014, 'Integrated Magnetic MEMS Relays: Status of the Technology.mdpi.com/journal/micromachines Review Integrated Magnetic MEMS Relays: Status of the Technology Giuseppe Schiavone 1,2, *, Marc P. Y

  13. Edinburgh Research Explorer Probabilistic Programming Process Algebra

    E-Print Network [OSTI]

    Millar, Andrew J.

    Edinburgh Research Explorer Probabilistic Programming Process Algebra Citation for published Algebra' Paper presented at 11th International Conference on Quantit, Florence, Italy, 8/09/14 - 10 Algebra Anastasis Georgoulas1 , Jane Hillston1 , Dimitrios Milios1 , and Guido Sanguinetti1,2 1 School

  14. Visual Exploration of Uncertainty in Remotesensing Classification

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Visual Exploration of Uncertainty in Remote­sensing Classification Frans J.M. van der Wel Utrecht analysis of remotely­sensed data aims at acquiring insight as to the stability of possible classifications for an overwhelming flow of data on the appearance and condition of our planet. The data yielded by remote sensing can

  15. European Space Agency European Space Exploration

    E-Print Network [OSTI]

    Crawford, Ian

    for the exploration of the Solar System and of those planets that may harbour life forms. Aurora is currently in its due account of Europe's strategic industrial, scientific and technological interests. It is expected that such a decision will be taken around 2015. In summary, Aurora proposes a stepwise build-up of capabilities

  16. Vanderbilt University's Peabody College Exploring the

    E-Print Network [OSTI]

    Palmeri, Thomas

    Vanderbilt University's Peabody College fall 2007 Exploring the Gold Standard in Classroom Research a look at the "gold standard" adopted by the Institute of Education Sciences and the challenge it poses- ture for next-generation research. Mathematics learning continues to be a prominent theme

  17. Geochemical Processes Data Package for the Vadose Zone in the Single-Shell Tank Waste Management Areas at the Hanford Site

    SciTech Connect (OSTI)

    Cantrell, Kirk J.; Zachara, John M.; Dresel, P. Evan; Krupka, Kenneth M.; Serne, R. Jeffrey

    2007-09-28

    This data package discusses the geochemistry of vadose zone sediments beneath the single-shell tank farms at the U.S. Department of Energy’s (DOE’s) Hanford Site. The purpose of the report is to provide a review of the most recent and relevant geochemical process information available for the vadose zone beneath the single-shell tank farms and the Integrated Disposal Facility. Two companion reports to this one were recently published which discuss the geology of the farms (Reidel and Chamness 2007) and groundwater flow and contamination beneath the farms (Horton 2007).

  18. A Comprehensive Mathematical Model for the Correlation of Earthquake Magnitude with Geochemical Measurements. A Case Study: the Nisyros Volcano in Greece

    SciTech Connect (OSTI)

    Verros, G. D.; Latsos, T.; Liolios, C.; Anagnostou, K. E. [Department of Electrical Engineering, Technological Educational Institute of Lamia, GR-351 00 Lamia (Greece)

    2009-08-13

    A comprehensive mathematical model for the correlation of geological phenomena such as earthquake magnitude with geochemical measurements is presented in this work. This model is validated against measurements, well established in the literature, of {sup 220}Rn/{sup 222}Rn in the fumarolic gases of the Nisyros Island, Aegean Sea, Greece. It is believed that this model may be further used to develop a generalized methodology for the prediction of geological phenomena such as earthquakes and volcanic eruptions in the vicinity of the Nisyros Island.

  19. Application of a New Structural Model & Exploration Technologies to Define a Blind Geothermal System: A Viable Alternative to Grid Drilling for Geothermal Exploration: McCoy, Churchill County, NV

    Broader source: Energy.gov [DOE]

    DOE Geothermal Technologies Peer Review 2010 - Presentation. Relevance of research: Improve exploration technologies for range-hosted geothermal systems:Employ new concept models and apply existing methods in new ways; Breaking geothermal exploration tasks into new steps, segmenting the problem differently; Testing new models for dilatent structures; Utilizing shallow thermal aquifer model to focus exploration; Refining electrical interpretation methods to map shallow conductive featuresIdentifying key faults as fluid conduits; and Employ soil gas surveys to detect volatile elements and gases common to geothermal systems.

  20. National Aeronautics and Space Administration Advanced Exploration Systems

    E-Print Network [OSTI]

    Waliser, Duane E.

    and transform skills. Infuse new technologies developed by STMD into exploration missions. Support robotic

  1. As of October 17, 2012 Solar System Exploration @50

    E-Print Network [OSTI]

    :45 ­ 11:45 am Panel #1: Politics and Policy in the Conduct of Solar System Exploration Panel Chair: Marcia, and Solar System Exploration Panel Chair: Heidi Hammel (Association of Universities for Research And Mars: The Soviet Planetary Exploration Enterprise 9:30 ­ 11:30 am Panel 4: Exploring the Outer Solar

  2. Geochemical indicators of depositional environment and soruce-rock potential for the Upper Ordovician Maquoketa Group, Illinois basin

    SciTech Connect (OSTI)

    Guthrie, J.M.; Pratt, L.M. )

    1994-05-01

    Two depositional cycles are recognized within the Upper Ordovician Maquoketa Group of the Illinois basin in a core from the New Jersey Zinc 1 Parrish well of Fulton County, Illinois. Organic carbon (C[sub org]), total sulfur, [sup 13]C content of the organic carbon ([delta][sup 13]C[sub org]), hydrogen and oxygen indices (HI and OI) from Rock-Eval pyrolysis and yields of extractable organic matter (EOM) vary through the cycles. Dark-brown to black, laminated shales are present in the lower portion of each cycle and have high values of C[sub org] (1.0-3.0%), HI (500-1000 mg hydrocarbon [HC]/g total organic carbon[TOC]), and EOM (500-2500 ppm), and more negative [delta][sup 13]C[sub org] values ([delta][sup 13]C[sub org] = -30 to -30.5%). Gray to greenish-gray, bioturbated shales are present in the upper portion of each cycle and have low values of C[sub org] (<1.0%), HI (<500 mg HC/g TOC), and EOM (<500 ppm), and more positive [delta][sup 13]C[sub org] values (-28.5 to 29.5%) compared to the laminated shales. Although thermally immature or marginally mature in this core, the laminated shales represent potential source rock s for petroleum because they contain good to excellent quantities of oil-prone organic matter and are more deeply buried in other areas of the basin. Kerogen elemental data and Rock-Eval data suggest that the source of organic matter in the Maquoketa was uniform, with the notable exception of graptolite-rich layers. Distributions of saturated hydrocarbons for Maquoketa samples resemble those derived from amorphous organic matter. Variations in bulk geochemical data and carbon isotopic compositions within the Maquoketa Group indicate substantial reworking and degradation of organic matter associated with bioturbation and oxygenated depositional conditions. 64 refs., 10 figs., 1 tab.

  3. Design and prototyping methods for brushless motors and motor control

    E-Print Network [OSTI]

    Colton, Shane W. (Shane William)

    2010-01-01

    In this report, simple, low-cost design and prototyping methods for custom brushless permanent magnet synchronous motors are explored. Three case-study motors are used to develop, illustrate and validate the methods. Two ...

  4. WINTERTemplate Geochemical mechanisms of

    E-Print Network [OSTI]

    Borissova, Daniela

    (prevention of the CO2 outgassing) #12;07Dissolution of CaCO3 H2CO3 HCO3 - CO3 2- H+ CO3 2- + H+ HCO3 - HCO3 Ca2+ + 2HCO3 - H2O + CO2 )10( 3.8 2 3 2 SPCOCa Kaa Precipitation of CaCO3 CO2 outgassing: 1

  5. Nuclear technologies for Moon and Mars exploration

    SciTech Connect (OSTI)

    Buden, D.

    1991-01-01

    Nuclear technologies are essential to successful Moon and Mars exploration and settlements. Applications can take the form of nuclear propulsion for transport of crews and cargo to Mars and the Moon; surface power for habitats and base power; power for human spacecraft to Mars; shielding and life science understanding for protection against natural solar and cosmic radiations; radioisotopes for sterilization, medicine, testing, and power; and resources for the benefits of Earth. 5 refs., 9 figs., 3 tabs.

  6. RAPID/Geothermal/Exploration | 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:QAsourceBulkTransmission/Environment/NevadaRAPID/Geothermal/Environment/Texas < RAPID‎ |Geothermal/Exploration

  7. Exploring Hydroelectricity (9 activities) | 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:FinancingPetroleum12, 2015Executive Order 13514 Federal Leadership Lessons LearnedExploring

  8. Tracers and Exploration Technologies | 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 RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavings forTitle XVIIofTracers and Exploration

  9. Explore Bioenergy Technology Careers | 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 Fuelsof Energy Services » Program Management »EricExploration and GRED:

  10. Explore Careers in Manufacturing | 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 Fuelsof Energy Services » Program Management »EricExploration andManufacturing

  11. Explore Careers in Weatherization | 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 Fuelsof Energy Services » Program Management »EricExploration

  12. Explore Geothermal Careers | 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 Fuelsof Energy Services » Program Management »EricExplorationWind Power

  13. Explore Solar Careers | 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 Fuelsof Energy Services » Program Management »EricExplorationWind PowerSolar

  14. Explore Water Power Careers | 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 Fuelsof Energy Services » Program Management »EricExplorationWind

  15. Geothermal Exploration Policy Mechanisms | 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 Fuelsof Energy Services »Information ResourcesHeatGenericExploration Policy

  16. Application of Radial Basis Functional Link Networks to Exploration for Proterozoic Mineral Deposits in Central Iran

    SciTech Connect (OSTI)

    Behnia, Pouran [Geological Survey of Iran, Geomatics Department (Iran, Islamic Republic of)], E-mail: pouranb@yahoo.com

    2007-06-15

    The metallogeny of Central Iran is characterized mainly by the presence of several iron, apatite, and uranium deposits of Proterozoic age. Radial Basis Function Link Networks (RBFLN) were used as a data-driven method for GIS-based predictive mapping of Proterozoic mineralization in this area. To generate the input data for RBFLN, the evidential maps comprising stratigraphic, structural, geophysical, and geochemical data were used. Fifty-eight deposits and 58 'nondeposits' were used to train the network. The operations for the application of neural networks employed in this study involve both multiclass and binary representation of evidential maps. Running RBFLN on different input data showed that an increase in the number of evidential maps and classes leads to a larger classification sum of squared error (SSE). As a whole, an increase in the number of iterations resulted in the improvement of training SSE. The results of applying RBFLN showed that a successful classification depends on the existence of spatially well distributed deposits and nondeposits throughout the study area.

  17. Using comprehensive two-dimensional gas chromatography to explore the geochemistry of the Santa Barbara oil seeps

    SciTech Connect (OSTI)

    Reddy, Christopher; Nelson, Robert

    2013-03-27

    The development of comprehensive two-dimensional gas chromatography (GC x GC) has expanded the analytical window for studying complex mixtures like oil. Compared to traditional gas chromatography, this technology separates and resolves at least an order of magnitude more compounds, has a much larger signal to noise ratio, and sorts compounds based on their chemical class; hence, providing highly refined inventories of petroleum hydrocarbons in geochemical samples that was previously unattainable. In addition to the increased resolution afforded by GC x GC, the resulting chromatograms have been used to estimate the liquid vapor pressures, aqueous solubilities, octanol-water partition coefficients, and vaporization enthalpies of petroleum hydrocarbons. With these relationships, powerful and incisive analyses of phase-transfer processes affecting petroleum hydrocarbon mixtures in the environment are available. For example, GC x GC retention data has been used to quantitatively deconvolve the effects of phase transfer processes such as water washing and evaporation. In short, the positive attributes of GC x GC-analysis have led to a methodology that has revolutionized the analysis of petroleum hydrocarbons. Overall, this research has opened numerous fields of study on the biogeochemical "?genetics"ť (referred to as petroleomics) of petroleum samples in both subsurface and surface environments. Furthermore, these new findings have already been applied to the behavior of oil at other seeps as well, for petroleum exploration and oil spill studies.

  18. Pipe Explorer{trademark} surveying system. Innovative technology summary report

    SciTech Connect (OSTI)

    Not Available

    1999-06-01

    The US Department of Energy`s (DOE) Chicago Operations Office and the DOE`s Federal Energy Technology Center (FETC) developed a Large Scale Demonstration Project (LSDP) at the Chicago Pile-5 Research Reactor (CP-5) at Argonne National Laboratory-East (ANL). The objective of the LSDP is to demonstrate potentially beneficial decontamination and decommissioning (D and D) technologies in comparison with current baseline technologies. The Pipe Explorer{trademark} system was developed by Science and Engineering Associates, Inc. (SEA), Albuquerque, NM as a deployment method for transporting a variety of survey tools into pipes and ducts. Tools available for use with the system include alpha, beta and gamma radiation detectors; video cameras; and pipe locator beacons. Different versions of this technology have been demonstrated at three other sites; results of these demonstrations are provided in an earlier Innovative Technology Summary Report. As part of a D and D project, characterization radiological contamination inside piping systems is necessary before pipes can be recycled, remediated or disposed. This is usually done manually by surveying over the outside of the piping only, with limited effectiveness and risk of worker exposure. The pipe must be accessible to workers, and embedded pipes in concrete or in the ground would have to be excavated at high cost and risk of exposure to workers. The advantage of the Pipe Explorer is its ability to perform in-situ characterization of pipe internals.

  19. EXPLORING THE EFFECT OF RHYTHMIC STYLE CLASSIFICATION ON AUTOMATIC TEMPO ESTIMATION

    E-Print Network [OSTI]

    Plumbley, Mark

    EXPLORING THE EFFECT OF RHYTHMIC STYLE CLASSIFICATION ON AUTOMATIC TEMPO ESTIMATION Matthew E. P. Davies and Mark D. Plumbley Centre for Digital Music, Queen Mary, University of London Mile End Rd, E1 4 audio signals. We demonstrate how the use of a simple 1-NN classification method, able to determine

  20. Exploring the effect of rhythmic style classification on automatic tempo estimation

    E-Print Network [OSTI]

    Plumbley, Mark

    Exploring the effect of rhythmic style classification on automatic tempo estimation Matthew E. P. Davies and Mark D. Plumbley Centre for Digital Music, Queen Mary, University of London Mile End Rd, E1 4 in musical audio signals. We demonstrate how the use of a simple 1-NN classification method, able

  1. Exploring the eddy current excitation invariance to infer about defect characteristics

    SciTech Connect (OSTI)

    Ribeiro, A. Lopes; Ramos, H. G. [I and M Group, Instituto de Telecomunicacoes, Lisboa, Portugal Instituto Superior Tecnico, DEEC, Lisboa (Portugal)

    2011-06-23

    This paper explores the excitation probe excitation field invariance when the eddy current method is applied to detect, localize and characterize material defects in conductive nonmagnetic media. The cases relative to rotational symmetry in circular solenoidal probes and translation symmetry in constant field probes are presented. The experimental data shows that this theoretical treatment is useful to preview the behavior of these probes.

  2. Interactive visual analysis promotes exploration of long-term ecological data

    E-Print Network [OSTI]

    Kurapov, Alexander

    JONES,2 RONALD METOYER,1 FREDERICK SWANSON,3 AND ROBERT PABST 4 1 School of Electrical Engineering analysis tools such as statistical methods and spreadsheet software permit rigorous tests of pre-term data. We present Ecological Distributions and Trends Explorer (EcoDATE), a web-based, visual

  3. Experimenting with Drugs (and Topic Models): Multi-Dimensional Exploration of Recreational Drug Discussions

    E-Print Network [OSTI]

    Dredze, Mark

    Experimenting with Drugs (and Topic Models): Multi-Dimensional Exploration of Recreational Drug of new recreational drugs and trends re- quires mining current information from non-traditional text components. The resulting model learns factors that correspond to drug type, delivery method (smoking

  4. EXPLORATION OF PREHOSPITAL VITAL SIGN TRENDS FOR THE PREDICTION OF TRAUMA OUTCOMES

    E-Print Network [OSTI]

    EXPLORATION OF PREHOSPITAL VITAL SIGN TRENDS FOR THE PREDICTION OF TRAUMA OUTCOMES Liangyou Chen whether there are diagnostically useful temporal trends in prehospital vital signs of trauma patients. Methods. Vital signs were monitored during trans- port to a level I trauma center and electronically

  5. Exploring holographic dark energy model with Sandage-Loeb test

    E-Print Network [OSTI]

    Hongbao Zhang; Wuhan Zhong; Zong-Hong Zhu; Song He

    2007-11-14

    Taking into account that Sandage-Loeb test is unique in its coverage of the redshift desert and available in the near future, we explore the cosmic time evolution behavior of the source redshift for holographic dark energy model, an important competing cosmological model. As a result, we find that Sandage-Loeb test can provide a extremely strong bound on $\\Omega^0_m$, while its constraint on another dimensionless parameter $\\lambda$ is weak. In addition, it is proposed here for the first time that we can also constrain various cosmological model by measuring the value of $z_{max}$ at which the peak of redshift velocity occurs. Combining this new proposed method with the traditional Sandage-Loeb test, we should be able to provide a better constraint on $\\lambda$, at least from the theoretical perspective.

  6. Template:ExplorationGroup | 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-EnhancingEt Al., 2013) | Open EnergyDBpediaValue Jump to:EnergyWaterExplorationGroup

  7. Geothermal/Exploration | 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 View New PagesSustainable UrbanKentucky:Bore TechnologiesAssessment Insetting ofOpenExploration

  8. Property:ExplorationGroup | 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,AltFuelVehicle2 Jump to: navigation, search This is a property ofExplorationGroup Jump to:

  9. Form:ExplorationTechnique | 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 ECoopButtePowerEdistoWhiskeyFootprint Ventures Jump to:45 - WellExplorationTechnique

  10. Category:Exploration Activities | 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 ECoopButte County,Camilla, Georgia: Energy014771°,NorthCLEANElkins, WV JumpExploration

  11. Property:ExplorationHistory | 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 JEnvironmental Jump to: navigation,Property Edit with form HistoryExplorationCostPerMetric Jump

  12. Property:ExplorationNotes | 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 JEnvironmental Jump to: navigation,Property Edit with form HistoryExplorationCostPerMetric

  13. Concept Study: Exploration and Production in Environmentally Sensitive Arctic Areas

    SciTech Connect (OSTI)

    Shirish Patil; Rich Haut; Tom Williams; Yuri Shur; Mikhail Kanevskiy; Cathy Hanks; Michael Lilly

    2008-12-31

    The Alaska North Slope offers one of the best prospects for increasing U.S. domestic oil and gas production. However, this region faces some of the greatest environmental and logistical challenges to oil and gas production in the world. A number of studies have shown that weather patterns in this region are warming, and the number of days the tundra surface is adequately frozen for tundra travel each year has declined. Operators are not allowed to explore in undeveloped areas until the tundra is sufficiently frozen and adequate snow cover is present. Spring breakup then forces rapid evacuation of the area prior to snowmelt. Using the best available methods, exploration in remote arctic areas can take up to three years to identify a commercial discovery, and then years to build the infrastructure to develop and produce. This makes new exploration costly. It also increases the costs of maintaining field infrastructure, pipeline inspections, and environmental restoration efforts. New technologies are needed, or oil and gas resources may never be developed outside limited exploration stepouts from existing infrastructure. Industry has identified certain low-impact technologies suitable for operations, and has made improvements to reduce the footprint and impact on the environment. Additional improvements are needed for exploration and economic field development and end-of-field restoration. One operator-Anadarko Petroleum Corporation-built a prototype platform for drilling wells in the Arctic that is elevated, modular, and mobile. The system was tested while drilling one of the first hydrate exploration wells in Alaska during 2003-2004. This technology was identified as a potentially enabling technology by the ongoing Joint Industry Program (JIP) Environmentally Friendly Drilling (EFD) program. The EFD is headed by Texas A&M University and the Houston Advanced Research Center (HARC), and is co-funded by the National Energy Technology Laboratory (NETL). The EFD participants believe that the platform concept could have far-reaching applications in the Arctic as a drilling and production platform, as originally intended, and as a possible staging area. The overall objective of this project was to document various potential applications, locations, and conceptual designs for the inland platform serving oil and gas operations on the Alaska North Slope. The University of Alaska Fairbanks assisted the HARC/TerraPlatforms team with the characterization of potential resource areas, geotechnical conditions associated with continuous permafrost terrain, and the potential end-user evaluation process. The team discussed the various potential applications with industry, governmental agencies, and environmental organizations. The benefits and concerns associated with industry's use of the technology were identified. In this discussion process, meetings were held with five operating companies (22 people), including asset team leaders, drilling managers, HSE managers, and production and completion managers. Three other operating companies and two service companies were contacted by phone to discuss the project. A questionnaire was distributed and responses were provided, which will be included in the report. Meetings were also held with State of Alaska Department of Natural Resources officials and U.S. Bureau of Land Management regulators. The companies met with included ConcoPhillips, Chevron, Pioneer Natural Resources, Fairweather E&P, BP America, and the Alaska Oil and Gas Association.

  14. Correlation methods

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1981-01-01

    Correlation methods have been developed to provide a quick and relatively simple technique for estimating the performance of passive solar systems. The correlations are done with respect to data generated from simulation models. The techniques and accuracies are described. Both the Solar Load Ratio and Un-Utilizability methods are described. The advantages and limitations of correlation methods as design tools are discussed.

  15. Seismic ray method: Recent developments Vlastislav

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    of seismology and seismic exploration for oil. This article outlines the basic features of the seismic raySeismic ray method: Recent developments Vlastislav #20; Cerven#19;y, Lud#20;ek Klime#20;s;#16; II 1401, 141 31 Praha 4, Czech Republic, E-mail: ip@ig.cas.cz Abstract The seismic ray method has

  16. Design space exploration for multiprocessor-based embedded systems 

    E-Print Network [OSTI]

    Mohanty, Debashis

    2001-01-01

    Design space exploration is the process of obtaining the optimal design out of all possible design alternatives. The design-space becomes very large when the target architecture consists of heterogeneous components, and it is not possible to explore...

  17. Design of spacecraft for exploration of the Moon and Mars

    E-Print Network [OSTI]

    Epps, Brenden P

    2006-01-01

    In this thesis, I develop the conceptual design of the spacecraft required for human-Lunar and human-Mars exploration. The requirements for these vehicles are derived in the context of the NASA Concept Exploration & ...

  18. Integrated navigation architecture analysis for Moon and Mars exploration

    E-Print Network [OSTI]

    Chabot, Thomas

    2005-01-01

    The new solar system exploration objectives announced in January 2004 have the goal of sending humans back to the Moon by the year 2020 in preparation for human exploration of Mars. Advanced, but cost effective, surface ...

  19. A trade space model for robotic lunar exploration

    E-Print Network [OSTI]

    Bailey, Zachary James

    2010-01-01

    The last decade has seen a resurgence of interest in the moon as a target for planetary exploration. In light of the growing interest in the robotic exploration of the moon, this thesis presents a quantitative methodology ...

  20. An Integrated Traverse Planner and Analysis Tool for Planetary Exploration

    E-Print Network [OSTI]

    Johnson, Aaron William

    Future planetary explorations will require surface traverses of unprecedented frequency, length, and duration. As a result, there is need for exploration support tools to maximize productivity, scientific return, and safety. ...

  1. June 26 Webinar to Explore Renewable Energy Project Leasing on...

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

    6 Webinar to Explore Renewable Energy Project Leasing on Tribal Lands June 26 Webinar to Explore Renewable Energy Project Leasing on Tribal Lands June 19, 2013 - 7:28pm Addthis The...

  2. [The Journal of Geology, 2005, volume 113, p. 517533] 2005 by The University of Chicago. All rights reserved. 0022-1376/2005/11305-0002$15.00 Geochemical Evaluation of Fenghuoshan Group Lacustrine

    E-Print Network [OSTI]

    University, Oxford, Ohio 45056, U.S.A. A B S T R A C T A sedimentologic, petrologic, and geochemical fos- sils. Sedimentologic evidence suggests that carbonate deposition occurred in shallow, relatively of correlation between the two isotopic systems supports the sedimentological interpretation of a shallow

  3. HISTORICAL SKETCH OF THE EXPLORATIONS IN THE GULF OF MEXICO

    E-Print Network [OSTI]

    CHAPTER I HISTORICAL SKETCH OF THE EXPLORATIONS IN THE GULF OF MEXICO #12;Blank page retained for pagination #12;HISTORICAL SKETCH OF THE EXPLORATIONS IN THE GULF OF MEXICO By PAUL S. GALTSOFF, Fish and explorations in the Gulf of Mexico prcsented in this paper is based on published materials avail- able

  4. Errors-in-variables problems in transient electromagnetic mineral exploration

    E-Print Network [OSTI]

    Braslavsky, Julio H.

    Errors-in-variables problems in transient electromagnetic mineral exploration K. Lau, J. H in transient electromagnetic mineral exploration. A specific sub-problem of interest in this area geological surveys, dia- mond drilling, and airborne mineral exploration. Our interest here is with ground

  5. Internet Explorer 11 meldet: ,,Ihr Browser wird nicht untersttzt"

    E-Print Network [OSTI]

    Potsdam, Universität

    Internet Explorer 11 meldet: ,,Ihr Browser wird nicht unterstützt" Keine Sorge, Internet Explorer". Bedienungsanleitung Mail.UP Seite 1 von 2 Internet Explorer 11 Universität Potsdam | ZEIK #12;Sie erhalten ein Pop nun sofort sichtbar und Sie können sich anmelden. Bedienungsanleitung Mail.UP Seite 2 von 2 Internet

  6. Exploring Music Collections on Mobile Devices. Olga Goussevskaia

    E-Print Network [OSTI]

    Exploring Music Collections on Mobile Devices. Olga Goussevskaia Computer Engineering and Networks exploration and retrieval on mobile devices. We present Mobile Music Explorer--a mobile application, which. INTRODUCTION Mobile phones have been turning into multi-purpose en- tertaining devices with increasing storage

  7. Name __________________ Exploring Marine Science at the Seymour Center

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Name __________________ Exploring Marine Science at the Seymour Center Green Pod Page 1 of 3 (5 __________ANSWER KEY________ Exploring Marine Science at the Seymour Center Green Pod Page 2 of 3 (5/09) "Why________ Exploring Marine Science at the Seymour Center Green Pod Page 3 of 3 (5/09) "Why is Science Important

  8. EMBEDDED SW DESIGN SPACE EXPLORATION AND AUTOMATION USING

    E-Print Network [OSTI]

    Wagner, Flávio Rech

    EMBEDDED SW DESIGN SPACE EXPLORATION AND AUTOMATION USING UML-BASED TOOLS FLÁVIO R. WAGNER, carro}@inf.ufrgs.br Abstract: This tutorial discusses design space exploration and software automation and allow design space exploration together with software automation. Key words: Embedded Software, Design

  9. NASA/CP--2006214202 NASA Space Exploration Logistics Workshop

    E-Print Network [OSTI]

    de Weck, Olivier L.

    NASA/CP--2006­214202 NASA Space Exploration Logistics Workshop Proceedings January 17-18, 2006 Hanover, MD 21076-1320 #12;NASA/CP--2006­214202 NASA Space Exploration Logistics Workshop Proceedings January 17-18, 2006 Washington, DC The first Space Exploration Logistics Workshop, hosted by MIT and SOLE

  10. Exploring theory space with Monte Carlo reweighting

    SciTech Connect (OSTI)

    Gainer, James S. [Univ. of Florida, Gainesville, FL (United States); Lykken, Joseph [Fermi National Accelerator Laboratory, Batavia, IL (United States); Matchev, Konstantin T. [Univ. of Florida, Gainesville, FL (United States); Mrenna, Stephen [Fermi National Accelerator Laboratory, Batavia, IL (United States); Park, Myeonghun [The Univ. of Tokyo, Kashiwa (Japan)

    2014-10-01

    Theories of new physics often involve a large number of unknown parameters which need to be scanned. Additionally, a putative signal in a particular channel may be due to a variety of distinct models of new physics. This makes experimental attempts to constrain the parameter space of motivated new physics models with a high degree of generality quite challenging. We describe how the reweighting of events may allow this challenge to be met, as fully simulated Monte Carlo samples generated for arbitrary benchmark models can be effectively re-used. In particular, we suggest procedures that allow more efficient collaboration between theorists and experimentalists in exploring large theory parameter spaces in a rigorous way at the LHC.

  11. Exploring the mechanisms of protein folding

    E-Print Network [OSTI]

    Xu, Ji; Ren, Ying; Li, Jinghai

    2013-01-01

    Neither of the two prevalent theories, namely thermodynamic stability and kinetic stability, provides a comprehensive understanding of protein folding. The thermodynamic theory is misleading because it assumes that free energy is the exclusive dominant mechanism of protein folding, and attributes the structural transition from one characteristic state to another to energy barriers. Conversely, the concept of kinetic stability overemphasizes dominant mechanisms that are related to kinetic factors. This article explores the stability condition of protein structures from the viewpoint of meso-science, paying attention to the compromise in the competition between minimum free energy and other dominant mechanisms. Based on our study of complex systems, we propose that protein folding is a meso-scale, dissipative, nonlinear and non-equilibrium process that is dominated by the compromise between free energy and other dominant mechanisms such as environmental factors. Consequently, a protein shows dynamic structures,...

  12. Exploring patterns in European singles charts

    E-Print Network [OSTI]

    Buda, Andrzej

    2015-01-01

    European singles charts are important part of the music industry responsible for creating popularity of songs. After modeling and exploring dynamics of global album sales in previous papers, we investigate patterns of hit singles popularity according to all data (1966-2015) from weekly charts (polls) in 12 Western European countries. The dynamics of building popularity in various national charts is more than the economy because it depends on spread of information. In our research we have shown how countries may be affected by their neighbourhood and influenced by technological era. We have also computed correlations with geographical and cultural distances between countries in analog, digital and Internet era. We have shown that time delay between the single premiere and the peak of popularity has become shorter under the influence of technology and the popularity of songs depends on geographical distances in analog (1966-1987) and Internet (2004-2015) era. On the other hand, cultural distances between nation...

  13. Geothermal Exploration in Hot Springs, Montana

    SciTech Connect (OSTI)

    Toby McIntosh, Jackola Engineering

    2012-09-26

    The project involves drilling deeper in the Camp Aqua well dri lled in June 1982 as part of an effort to develop an ethanol plant. The purpose of the current drill ing effort is to determine if water at or above 165�������������������������������°F exists for the use in low temperature resource power generation. Previous geothermal resource study efforts in and around Hot Springs , MT and the Camp Aqua area (NE of Hot Springs) have been conducted through the years. A confined gravel aquifer exists in deep alluvium overlain by approximately 250���������������¢�������������������������������� of si lt and c lay deposits from Glacial Lake Missoula. This gravel aquifer overlies a deeper bedrock aquifer. In the Camp Aqua area several wel l s exist in the gravel aquifer which receives hot water f rom bedrock fractures beneath the area. Prior to this exploration, one known well in the Camp Aqua area penetrated into the bedrock without success in intersecting fractures transporting hot geothermal water. The exploration associated with this project adds to the physical knowledge database of the Camp Aqua area. The dri l l ing effort provides additional subsurface information that can be used to gain a better understanding of the bedrock formation that i s leaking hot geothermal water into an otherwise cold water aquifer. The exi s t ing well used for the explorat ion is located within the ���������������¢��������������������������������center���������������¢������������������������������� of the hottest water within the gravel aquifer. This lent i t sel f as a logical and economical location to continue the exploration within the existing well. Faced with budget constraints due to unanticipated costs, changing dril l ing techniques stretched the limited project resources to maximize the overa l l well depth which f e l l short of original project goals. The project goal of finding 165�������������������������������°F or hotter water was not achieved; however the project provides additional information and understanding of the Camp Aqua area that could prove valuable in future exploration efforts

  14. Exploring theory space with Monte Carlo reweighting

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Gainer, James S.; Lykken, Joseph; Matchev, Konstantin T.; Mrenna, Stephen; Park, Myeonghun

    2014-10-13

    Theories of new physics often involve a large number of unknown parameters which need to be scanned. Additionally, a putative signal in a particular channel may be due to a variety of distinct models of new physics. This makes experimental attempts to constrain the parameter space of motivated new physics models with a high degree of generality quite challenging. We describe how the reweighting of events may allow this challenge to be met, as fully simulated Monte Carlo samples generated for arbitrary benchmark models can be effectively re-used. In particular, we suggest procedures that allow more efficient collaboration between theoristsmore »and experimentalists in exploring large theory parameter spaces in a rigorous way at the LHC.« less

  15. Immersed Boundary Methods in the Lattice Boltzmann Equation for Flow Simulation 

    E-Print Network [OSTI]

    Kang, Shin Kyu

    2012-02-14

    In this dissertation, we explore direct-forcing immersed boundary methods (IBM) under the framework of the lattice Boltzmann method (LBM), which is called the direct-forcing immersed boundary-lattice Boltzmann method (IB-LBM). First, we derive...

  16. Connection method

    DOE Patents [OSTI]

    Weyand, J.D.

    1986-11-18

    A method is disclosed of making a region exhibiting a range of compositions, comprising plasma spraying various compositions on top of one another onto a base. 2 figs.

  17. Evapotranspiration And Geochemical Controls On Groundwater Plumes At Arid Sites: Toward Innovative Alternate End-States For Uranium Processing And Tailings Facilities

    SciTech Connect (OSTI)

    Looney, Brian B.; Denham, Miles E.; Eddy-Dilek, Carol A.; Millings, Margaret R.; Kautsky, Mark

    2014-01-08

    Management of legacy tailings/waste and groundwater contamination are ongoing at the former uranium milling site in Tuba City AZ. The tailings have been consolidated and effectively isolated using an engineered cover system. For the existing groundwater plume, a system of recovery wells extracts contaminated groundwater for treatment using an advanced distillation process. The ten years of pump and treat (P&T) operations have had minimal impact on the contaminant plume – primarily due to geochemical and hydrological limits. A flow net analysis demonstrates that groundwater contamination beneath the former processing site flows in the uppermost portion of the aquifer and exits the groundwater as the plume transits into and beneath a lower terrace in the landscape. The evaluation indicates that contaminated water will not reach Moenkopi Wash, a locally important stream. Instead, shallow groundwater in arid settings such as Tuba City is transferred into the vadose zone and atmosphere via evaporation, transpiration and diffuse seepage. The dissolved constituents are projected to precipitate and accumulate as minerals such as calcite and gypsum in the deep vadose zone (near the capillary fringe), around the roots of phreatophyte plants, and near seeps. The natural hydrologic and geochemical controls common in arid environments such as Tuba City work together to limit the size of the groundwater plume, to naturally attenuate and detoxify groundwater contaminants, and to reduce risks to humans, livestock and the environment. The technical evaluation supports an alternative beneficial reuse (“brownfield”) scenario for Tuba City. This alternative approach would have low risks, similar to the current P&T scenario, but would eliminate the energy and expense associated with the active treatment and convert the former uranium processing site into a resource for future employment of local citizens and ongoing benefit to the Native American Nations.

  18. GIS for All: Exploring the Barriers and Opportunities for Underexploited GIS Applications GIS for All: Exploring the Barriers and

    E-Print Network [OSTI]

    Köbben, Barend

    GIS for All: Exploring the Barriers and Opportunities for Underexploited GIS Applications GIS for All: Exploring the Barriers and Opportunities for Underexploited GIS Applications by Hao Ye1 , Michael that adoption of GIS technologies still remains relatively low in many sectors. We will explore both the bar

  19. ArcGIS Explorer Online Extended Use Quick Guide ArcGIS Explorer Online--GIS for Everyone

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    ArcGIS Explorer Online Extended Use Quick Guide ArcGIS Explorer Online--GIS for Everyone Creating notes, photo links, and presentations ArcGIS Explorer Online (AGXO) is a browser-based GIS viewer, perform queries and create presentations. This quick guide is an extension of the Introduction to ArcGIS

  20. Directed aerial robot explorers for planetary exploration A.A. Pankine a,*, K.M. Aaron a

    E-Print Network [OSTI]

    Lorenz, Ralph D.

    Directed aerial robot explorers for planetary exploration A.A. Pankine a,*, K.M. Aaron a , M architecture relies upon the use of Directed Aerial Robot Explorers (DAREs), which essentially are long. Published by Elsevier Ltd. All rights reserved. Keywords: Scientific ballooning; Direct Aerial Robot

  1. Exploring the Future Development in Employee Involvement

    E-Print Network [OSTI]

    Al Hanbali, Ahmad

    and decentralized. Via the Delphi method consensus was achieved. Two rounds, first qualitative then quantitative prior specific permission and/or a fee. 5th IBA Bachelor Thesis Conference, July 2nd , 2015, Enschede

  2. Alum Innovative Exploration Project (Ram Power Inc.)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Miller, Clay

    Data generated from the Alum Innovative Exploration Project, one of several promising geothermal properties located in the middle to upper Miocene (~11-5 Ma, or million years BP) Silver Peak-Lone Mountain metamorphic core complex (SPCC) of the Walker Lane structural belt in Esmeralda County, west-central Nevada. The geothermal system at Alum is wholly concealed; its upper reaches discovered in the late 1970s during a regional thermal-gradient drilling campaign. The prospect boasts several shallow thermal-gradient (TG) boreholes with TG >75oC/km (and as high as 440oC/km) over 200-m intervals in the depth range 0-600 m. Possibly boiling water encountered at 239 m depth in one of these boreholes returned chemical- geothermometry values in the range 150-230oC. GeothermEx (2008) has estimated the electrical- generation capacity of the current Alum leasehold at 33 megawatts for 20 years; and the corresponding value for the broader thermal anomaly extending beyond the property at 73 megawatts for the same duration.

  3. New River Geothermal Exploration (Ram Power Inc.)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Miller, Clay

    2013-11-15

    The New River Geothermal Exploration (DOE Award No. EE0002843) is located approximately 25km south of the Salton Sea, near town of Brawley in Imperial County and approximately 150km east of San Diego, California. A total of 182 MT Logger sites were completed covering the two separate Mesquite and New River grids. The data was collected over a frequency range of 320Hz to 0.001Hz with variable site spacing. A number of different inversion algorithms in 1D, 2D and 3D were used to produce resistivity-depth profiles and maps of subsurface resistivity variations over the survey area. For 2D inversions, a total of eighteen lines were constructed in east-west and north-south orientations crossing the entire survey area. For MT 3D inversion, the New River property was divided in two sub-grids, Mesquite and New River areas. The report comprises of two parts. For the first part, inversions and geophysical interpretation results are presented with some recommendations of the potential targets for future follow up on the property. The second part of the report describes logistics of the survey, survey parameters, methodology and the survey results (data) in digital documents. The report reviews a Spartan MT survey carried out by Quantec Geoscience Limited over the New River Project in California, USA on behalf of Ram Power Inc. Data was acquired over a period of 29 days from 2010/06/26 to 2010/07/24.

  4. Alum Innovative Exploration Project (Ram Power Inc.)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Miller, Clay

    2010-01-01

    Data generated from the Alum Innovative Exploration Project, one of several promising geothermal properties located in the middle to upper Miocene (~11-5 Ma, or million years BP) Silver Peak-Lone Mountain metamorphic core complex (SPCC) of the Walker Lane structural belt in Esmeralda County, west-central Nevada. The geothermal system at Alum is wholly concealed; its upper reaches discovered in the late 1970s during a regional thermal-gradient drilling campaign. The prospect boasts several shallow thermal-gradient (TG) boreholes with TG >75oC/km (and as high as 440oC/km) over 200-m intervals in the depth range 0-600 m. Possibly boiling water encountered at 239 m depth in one of these boreholes returned chemical- geothermometry values in the range 150-230oC. GeothermEx (2008) has estimated the electrical- generation capacity of the current Alum leasehold at 33 megawatts for 20 years; and the corresponding value for the broader thermal anomaly extending beyond the property at 73 megawatts for the same duration.

  5. New River Geothermal Exploration (Ram Power Inc.)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Miller, Clay

    The New River Geothermal Exploration (DOE Award No. EE0002843) is located approximately 25km south of the Salton Sea, near town of Brawley in Imperial County and approximately 150km east of San Diego, California. A total of 182 MT Logger sites were completed covering the two separate Mesquite and New River grids. The data was collected over a frequency range of 320Hz to 0.001Hz with variable site spacing. A number of different inversion algorithms in 1D, 2D and 3D were used to produce resistivity-depth profiles and maps of subsurface resistivity variations over the survey area. For 2D inversions, a total of eighteen lines were constructed in east-west and north-south orientations crossing the entire survey area. For MT 3D inversion, the New River property was divided in two sub-grids, Mesquite and New River areas. The report comprises of two parts. For the first part, inversions and geophysical interpretation results are presented with some recommendations of the potential targets for future follow up on the property. The second part of the report describes logistics of the survey, survey parameters, methodology and the survey results (data) in digital documents. The report reviews a Spartan MT survey carried out by Quantec Geoscience Limited over the New River Project in California, USA on behalf of Ram Power Inc. Data was acquired over a period of 29 days from 2010/06/26 to 2010/07/24.

  6. New Chemical Aerosol Characterization Methods- Examples Using Agricultural and Urban Airborne Particulate Matter 

    E-Print Network [OSTI]

    Zhou, Lijun

    2010-10-12

    This study explored different chemical characterization methods of agricultural and urban airborne particulate matter. Three different field campaigns are discussed. For the agricultural aerosols, measurement of the chemical ...

  7. Exploring Potential Energy Surfaces for Enzymatic Reactions

    E-Print Network [OSTI]

    Schlegel, H. Bernhard

    high-level molecular orbital theory, while the most distant parts of the system are treated using low-cost) method to fit charges for QM region with capping hydrogens · QM/MM optimization with new RESP charges. aeolicus (PDB entry 2NWS) · Simulated annealing and MD to prepare complex · 2 dimensional reduced potential

  8. Solar discrepancies : Mars exploration and the curious problem of inter-planetary time

    E-Print Network [OSTI]

    Mirmalek, Zara Lenora

    2008-01-01

    Monterey, California. Solar Discrepancies: Mars explorationCALIFORNIA, SAN DIEGO Solar discrepancies: Mars explorationOF THE DISSERTATION Solar discrepancies: Mars exploration

  9. RAPID/Geothermal/Exploration/Idaho | 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/Colorado < RAPID‎ | Geothermal‎ | Exploration JumpGeothermal/Exploration/Idaho <

  10. RAPID/Geothermal/Exploration/Montana | 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/Colorado < RAPID‎ | Geothermal‎ | Exploration JumpGeothermal/Exploration/Idaho

  11. RAPID/Geothermal/Exploration/Nevada | 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/Colorado < RAPID‎ | Geothermal‎ | ExplorationRAPID/Geothermal/Exploration/Nevada

  12. TOUGHREACT User's Guide: A Simulation Program for Non-isothermal Multiphase Reactive Geochemical Transport in Variably Saturated Geologic Media, V1.2.1

    SciTech Connect (OSTI)

    Xu, Tianfu; Sonnenthal, Eric; Spycher, Nicolas; Pruess, Karsten

    2008-09-29

    Coupled modeling of subsurface multiphase fluid and heat flow, solute transport, and chemical reactions can be applied to many geologic systems and environmental problems, including geothermal systems, diagenetic and weathering processes, subsurface waste disposal, acid mine drainage remediation, contaminant transport, and groundwater quality. TOUGHREACT has been developed as a comprehensive non-isothermal multi-component reactive fluid flow and geochemical transport simulator to investigate these and other problems. A number of subsurface thermo-physical-chemical processes are considered under various thermohydrological and geochemical conditions of pressure, temperature, water saturation, and ionic strength. TOUGHREACT can be applied to one-, two- or three-dimensional porous and fractured media with physical and chemical heterogeneity. The code can accommodate any number of chemical species present in liquid, gas and solid phases. A variety of equilibrium chemical reactions are considered, such as aqueous complexation, gas dissolution/exsolution, and cation exchange. Mineral dissolution/precipitation can take place subject to either local equilibrium or kinetic controls, with coupling to changes in porosity and permeability and capillary pressure in unsaturated systems. Chemical components can also be treated by linear adsorption and radioactive decay. The first version of the non-isothermal reactive geochemical transport code TOUGHREACT was developed (Xu and Pruess, 1998) by introducing reactive geochemistry into the framework of the existing multi-phase fluid and heat flow code TOUGH2 (Pruess, 1991). TOUGHREACT was further enhanced with the addition of (1) treatment of mineral-water-gas reactive-transport under boiling conditions, (2) an improved HKF activity model for aqueous species, (3) gas species diffusion coefficients calculated as a function of pressure, temperature, and molecular properties, (4) mineral reactive surface area formulations for fractured and porous media, and (5) porosity, permeability, and capillary pressure changes owing to mineral precipitation/dissolution (Sonnenthal et al., 1998, 2000, 2001; Spycher et al., 2003a). Subsequently, TOUGH2 V2 was released with additional EOS modules and features (Pruess et al., 1999). The present version of TOUGHREACT includes all of the previous extensions to the original version, along with the replacement of the original TOUGH2 (Pruess, 1991) by TOUGH2 V2 (Pruess et al., 1999). TOUGHREACT has been applied to a wide variety of problems, some of which are included as examples, such as: (1) Supergene copper enrichment (Xu et al., 2001); (2) Mineral alteration in hydrothermal systems (Xu and Pruess, 2001a; Xu et al., 2004b; Dobson et al., 2004); (3) Mineral trapping for CO{sub 2} disposal in deep saline aquifers (Xu et al., 2003b and 2004a); (4) Coupled thermal, hydrological, and chemical processes in boiling unsaturated tuff for the proposed nuclear waste emplacement site at Yucca Mountain, Nevada (Sonnenthal et al., 1998, 2001; Sonnenthal and Spycher, 2000; Spycher et al., 2003a, b; Xu et al., 2001); (5) Modeling of mineral precipitation/dissolution in plug-flow and fracture-flow experiments under boiling conditions (Dobson et al., 2003); (6) Calcite precipitation in the vadose zone as a function of net infiltration (Xu et al., 2003); and (7) Stable isotope fractionation in unsaturated zone pore water and vapor (Singleton et al., 2004). The TOUGHREACT program makes use of 'self-documenting' features. It is distributed with a number of input data files for sample problems. Besides providing benchmarks for proper code installation, these can serve as a self-teaching tutorial in the use of TOUGHREACT, and they provide templates to help jump-start new applications. The fluid and heat flow part of TOUGHREACT is derived from TOUGH2 V2, so in addition to the current manual, users must have the manual of the TOUGH2 V2 (Pruess et al., 1999). The present version of TOUGHREACT provides the following TOUGH2 fluid property or 'EOS' (equation-of-state) modules: (1) EOS1 for

  13. Neutron Imaging Explored as Complementary Technique for Improving...

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

    Neutron Imaging Explored as Complementary Technique for Improving Cancer Detection August 05, 2013 Researcher Maria Cekanova analyzes the neutron radiographs of a canine breast...

  14. Reconnaissance geothermal exploration at Raft River, Idaho from...

    Open Energy Info (EERE)

    library Journal Article: Reconnaissance geothermal exploration at Raft River, Idaho from thermal infrared scanning Abstract GEOTHERMAL ENERGY; GEOTHERMAL FIELDS; INFRARED SURVEYS;...

  15. EIA - Natural Gas Exploration & Reserves Data and Analysis

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Exploration & Reserves Reserves Summary Proved reserves for natural gas and natural gas liquids by U.S., region, and State (annual). Proved Reserves, Reserves Changes, and...

  16. Exploration of the Versatility of Ring Opening Metathesis Polymerizati...

    Office of Scientific and Technical Information (OSTI)

    Versatility of Ring Opening Metathesis Polymerization: an Approach for Gaining Access to Low Density Polymeric Aerogels Citation Details In-Document Search Title: Exploration of...

  17. Exploration Best Practices and the OpenEI Knowledge Exchange...

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

    Exploration Best Practices and the OpenEI Knowledge Exchange Webinar slide presentation by Katherine Young, Timothy Reber and Kermit Witherbee on April 11, 2012....

  18. Lithium In Tufas Of The Great Basin- Exploration Implications...

    Open Energy Info (EERE)

    subsurface. In addition to providing a potentially diagnostic lithogeochemical tool for geothermal exploration, the analysis of lithium and other elements in tufa deposits could...

  19. Call for Proposals: NERSC Initiative for Scientific Exploration...

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

    2011 by Francesca Verdier (0 Comments) NERSC allocates 10% of the total MPP hours on our computational systems through the NERSC Initiative for Scientific Exploration (NISE)...

  20. Geothermal Exploration Using Aviris Remote Sensing Data Over...

    Open Energy Info (EERE)

    Geothermal Exploration Using Aviris Remote Sensing Data Over Fish Lake Valley, Nv Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Geothermal...

  1. Low Cost Exploration, Testing, and Development of the Chena Geothermal...

    Open Energy Info (EERE)

    2006) Areas (1) Chena Geothermal Area Regions (0) Retrieved from "http:en.openei.orgwindex.php?titleLowCostExploration,Testing,andDevelopmentoftheChenaGeothermalRes...

  2. Update On Geothermal Exploration At Fort Bidwell, Surprise Valley...

    Open Energy Info (EERE)

    Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Update On Geothermal Exploration At Fort Bidwell, Surprise Valley California Abstract A...

  3. Exploring the Possibilities: Mammoth-Pacific Seeks Cooling Efficiency...

    Open Energy Info (EERE)

    Exploring the Possibilities: Mammoth-Pacific Seeks Cooling Efficiency and More Steam for Geothermal Power Production in California's Sierra Nevada Mountains Jump to: navigation,...

  4. Early science with the large millimeter telescope: exploring...

    Office of Scientific and Technical Information (OSTI)

    Early science with the large millimeter telescope: exploring the effect of AGN activity on the relationships between molecular gas, dust, and star formation Citation Details...

  5. Egs Exploration Methodology Project Using the Dixie Valley Geothermal...

    Open Energy Info (EERE)

    Egs Exploration Methodology Project Using the Dixie Valley Geothermal System, Nevada, Status Update Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference...

  6. A Coordinated Exploration Program for Geothermal Sources on the...

    Open Energy Info (EERE)

    of Geophysics; p. 993-1001 Related Geothermal Exploration Activities Activities (8) Direct-Current Resistivity Survey At Kilauea East Rift Geothermal Area (FURUMOTO, 1976)...

  7. Los Alamos explores hybrid ultrasmall gold nanocluster for enzymatic...

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

    Alamos explores hybrid ultrasmall gold nanocluster for enzymatic fuel cells With fossil-fuel sources dwindling, better biofuel cell design is a strong candidate in the energy...

  8. Assessment of New Approaches in Geothermal Exploration Decision...

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

    approaches were investigated to develop a best-practices methodology for objective geothermal exploration decision making at a given location, including gono-go decision points...

  9. Exploring the Utilization of Complex Algal Communities to Address...

    Office of Environmental Management (EM)

    to Address Algal Pond Crash and Increase Annual Biomass Production for Algal Biofuels Exploring the Utilization of Complex Algal Communities to Address Algal Pond Crash...

  10. Exploration Guides For Active High-Temperature Geothermal Systems...

    Open Energy Info (EERE)

    V. Bouchot,A. Genter. 2009. Exploration Guides For Active High-Temperature Geothermal Systems As Modern Analogs For Epithermal Paleosystems. In: () ; () ; () . () : GRC; p....

  11. Jefferson Lab Fall Lecture: Exploring Our World With Particle...

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

    Nov. 23, with James E. Brau, University of Oregon, presenting "The Mysterious Universe: Exploring Our World with Particle Accelerators." The universe is dark and...

  12. A Web-based Method for Exploring Early Child Development Trends in British Columbia, Canada 

    E-Print Network [OSTI]

    Trafford, Katherine L E

    2007-11-27

    British Columbian policy-makers, researchers and community organizations make use of maps describing trends in Early Child Development (ECD) to make program decisions and funding allocation based upon the geography of need. ...

  13. A Computational Investigation of the Catalytic Properties of Graphene Oxide: Exploring Mechanisms Using DFT Methods

    E-Print Network [OSTI]

    Boukhvalov, Danil W; Bielawski, Christopher W; Son, Young-Woo

    2012-01-01

    Here we describe a computational study undertaken in an effort to elucidate the reaction mechanisms behind the experimentally observed oxidations and hydrations catalyzed by graphene oxide (GO). Using the oxidation of benzyl alcohol to benzaldehyde as a model reaction, density functional theory (DFT) calculations revealed that this reactivity stemmed from the transfer of hydrogen atoms from the organic molecule to the GO surface. In particular, neighbouring epoxide groups decorating GO's basal plane were ring-opened, resulting in the formation of diols, followed by dehydration. Consistent with the experimentally-observed dependence of this chemistry on molecular oxygen, our calculations revealed that the partially reduced catalyst was able to be recharged by molecular oxygen, allowing for catalyst turnover. Functional group-free carbon materials, such as graphite, were calculated to have substantially higher reaction barriers, indicating that the high chemical potential and rich functionality of GO are necess...

  14. Exploring Decision-Making Methods for Sustainable Design in Commercial Buildings

    E-Print Network [OSTI]

    Arroyo, Paz

    2014-01-01

    H. , and Chan, C. (2006). “MAUT-based dispute resolutionHierarchy Process (AHP) MAUT For choosing contractors in aLean Project Delivery System MAUT Multi-Attribute Utility

  15. Exploring the viability of probabilistic underspecification as a viable streamlining method for LCA

    E-Print Network [OSTI]

    Patanavanich, Siamrut

    2011-01-01

    Life cycle assessment (LCA) has gained much interest in the field of product development and decision making. The resource intensiveness of conducting an LCA has slowed more widespread adoption of the methodology. Although ...

  16. Edinburgh Research Explorer Strengths and limitations of period estimation methods for

    E-Print Network [OSTI]

    Millar, Andrew J.

    -access article distributed under the terms of the Creative Commons Attribution License, which permits distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use: This work was funded by the BBSRC and EPSRC systems biology projects ROBuST (award BB/F005237) and Synth

  17. SPECTROSCOPIC METHODS FOR ANALYZING ORGANIC COMPOUNDS IN FLUID INCLUSIONS DURING PLANETARY EXPLORATION. A. Mazzini 1

    E-Print Network [OSTI]

    Mazzini, Adriano

    to support of life, and could even contain direct biomolecular signatures of life. Accessing the fluid which provide data on organic compounds in fluid inclusions. The techniques used are Ra- man entrapped in chemosynthetic carbonate at a modern cold seep site. Cold seeps have been identified as targets

  18. An Evaluation Of Exploration Methods For Low-Temperature Geothermal Systems

    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:EAandAmminex A S Jump to: navigation,In The Artesian-City Area, Idaho | Open

  19. An Integrated Study Method For Exploration Of Gas Hydrate Reservoirs In

    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:EAandAmminex A S Jump to: navigation,In TheExperiments | Open

  20. A Five-Component Magneto-Telluric Method In Geothermal Exploration- The

    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)data bookresult9) Jump to:13:28-07:00EboroNHawaii |

  1. New Methods In Exploration At The Socorro Peak Kgra- A Gred Iii Project |

    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 APPENDIXsourceII Jump to: navigation,NationalJersey/Incentives < New Jersey JumpNewLondon

  2. Analyzing manufacturing methods of carbon nanotubes for commercialization

    E-Print Network [OSTI]

    Dee, H. Devin (Herbert Devin)

    2013-01-01

    This research explores the history and structure of carbon nanotubes and the current technologies and methods available for synthesizing, purifying, and assembling carbon nanotubes. Furthermore, the current state of ...

  3. A Direct Imaging Method for Inverse Scattering Using the ...

    E-Print Network [OSTI]

    Gang Bao; Kai Huang; Peijun Li; Hongkai Zhao

    2014-02-21

    radar and sonar, geophysical exploration, medical imaging, near-field and nano- optics. .... the convergence analysis of the block Gauss–Seidel iterative method. ..... plane incident waves and record the far-field pattern of the scattered waves.

  4. The snowball Earth aftermath: Exploring the limits of continental weathering processes

    E-Print Network [OSTI]

    Carbonates capping Neoproterozoic glacial deposits contain peculiar sedimentological features and geochemical weathering alone does not supply enough cations during the snowball melting phase to account at 635 Ma (Hoffman et al., 2004; Condon et al., 2005). The melting of these snowball Earth events

  5. Estimating Methods

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-03-28

    Based on the project's scope, the purpose of the estimate, and the availability of estimating resources, the estimator can choose one or a combination of techniques when estimating an activity or project. Estimating methods, estimating indirect and direct costs, and other estimating considerations are discussed in this chapter.

  6. BP Exploration`s Pompano subsea development: Operational strategy for a subsea project

    SciTech Connect (OSTI)

    Clarke, D.G.; Cordner, J.P.

    1996-12-31

    On a platform, facility modifications to cope with unexpected operating conditions or unanticipated problems may be made relatively easily at moderate cost. In contrast, subsea systems are placed on the seabed often beyond diver depth and are difficult if not impossible to retrieve or modify. Consequently the design must be optimized up front and have sufficient inherent flexibility to cope with the unexpected. It is therefore critical to develop an operational strategy in conjunction with suppliers, designers and operational staff, concurrently with the design. Input from Operations personnel is necessary from project conception throughout detailed design, fabrication, system integrating testing, installation and commissioning. This paper discusses BP Exploration`s work on the Pompano subsea project in the Gulf of Mexico and addresses many of the practical aspects in which Operations staff need to become involved with throughout a subsea project to ensure a problem free start-up and operation. It will provide a useful guide for Operations groups involved in the planning and operation of a subsea development

  7. Static electricity measurements for lightning warnings -an exploration

    E-Print Network [OSTI]

    Haak, Hein

    Static electricity measurements for lightning warnings - an exploration H. Bloemink De Bilt, 2013 | Internal report; IR 2013-01 #12;#12;Static electricity measurements for lightning warnings - an exploration Version 1.0 Date January 2013 Status Final #12;#12;Static electricity measurements for lightning warnings

  8. Sustainable Consumption and the New Economics: Exploring an

    E-Print Network [OSTI]

    Bateman, Ian J.

    ), and in 2003 the UK Government announced its strategy for sustainable consumption and production ­ definedSustainable Consumption and the New Economics: Exploring an Alternative Approach by Gill Seyfang CSERGE Working Paper ECM 07-05 #12;Sustainable Consumption and the New Economics: Exploring

  9. British Columbia's Exploring perspectives and seeking common ground

    E-Print Network [OSTI]

    Pedersen, Tom

    Research Group EMRG #12;The Pembina Institute ii British Columbia's Carbon Tax Horne, Matt, PetropavlovaBritish Columbia's Carbon Tax Exploring perspectives and seeking common ground Matt Horne · Ekaterina Petropavlova · P.J. Partington June 2012 #12;British Columbia's Carbon Tax Exploring perspectives

  10. GAS EXPLORATION Winter 2006 GasTIPS 5

    E-Print Network [OSTI]

    Rubin, Yoram

    GAS EXPLORATION Winter 2006 · GasTIPS 5 T he prediction of reservoir parameters such as gas or oil, but is particularly challenging in the case of gas exploration. Current seismic imaging technol- ogy cannot accurately discriminate between economic and non-eco- nomic concentrations of gas. This is primarily because

  11. Lunar Exploration Objectives Version 1, released December 2006

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Lunar Exploration Objectives Version 1, released December 2006 Astronomy and Astrophysics Page 1 of 2 Exploration Preparation Scientific Knowledge Human Civilization Economic Expansion Global, and seismic noise are all absent in deep space. X Astronomy & Astrophysics mA3 Detect gravitational waves

  12. Exploring the Concept of Seismic Resilience for Acute Care Facilities

    E-Print Network [OSTI]

    Bruneau, Michel

    Exploring the Concept of Seismic Resilience for Acute Care Facilities Michel Bruneau,a... M.EERI, and Andrei Reinhorn,b... M.EERI This paper explores the operational and physical resilience of acute care of the conceptualization of a framework to enhance the seismic resilience of communities Bruneau et al. 2003 , seismic

  13. Generalized simulated tempering for exploring strong phase transitions Jaegil Kima

    E-Print Network [OSTI]

    Straub, John E.

    rapid convergence. Accelerated tunneling transitions with a comprehensive sampling for phaseGeneralized simulated tempering for exploring strong phase transitions Jaegil Kima and John E to the exploration of first-order phase transition systems characterized by the backbending or S

  14. ContraVision: Exploring Users' Reactions to Futuristic Technology

    E-Print Network [OSTI]

    Nuseibeh, Bashar

    ContraVision: Exploring Users' Reactions to Futuristic Technology Clara Mancini*, Yvonne Rogers How can we best explore the range of users' reactions when developing future technologies that maybe, or other narrative forms, that convey either negative or positive aspects of the proposed technology

  15. CRISM: Exploring the Geology of Mars Tech Splash Open Music

    E-Print Network [OSTI]

    CRISM: Exploring the Geology of Mars Tech Splash Open Music Exploring the geology of Mars Marineris simply pulled apart, we would expect the geology on the North and South side of the canyon that make up the rocks. Using the CRISM data we can put together a very simplistic geologic profile

  16. Exploring big data opportunities for Online Customer Segmentation

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Exploring big data opportunities for Online Customer Segmentation Georgia Fotaki Marco Spruit Sjaak University P.O. Box 80.089 3508 TB Utrecht The Netherlands #12;iii Exploring big data opportunities and analyzing the huge amount of data; and this is where the concept of "Big Data" can play an essential role

  17. Roadmap for Venus Exploration (Version 4, 1/29/14)

    E-Print Network [OSTI]

    Rathbun, Julie A.

    1 Roadmap for Venus Exploration (Version 4, 1/29/14) Introduction Venus is so similar solar systems. This Roadmap lays out a framework for the future exploration of Venus, encompassing expressed in this Roadmap should be recognized by NASA review panels as being consistent with VEXAG

  18. Exploration of a Submerged Sinkhole Ecosystem in Lake Huron

    E-Print Network [OSTI]

    Exploration of a Submerged Sinkhole Ecosystem in Lake Huron Bopaiah A. Biddanda,1 * Dwight F in the bedrock (sinkholes), through which groundwater emerges onto the lake floor. During September 2003, we explored a recently discovered submerged sinkhole ecosystem (55 m · 40 m · 1 m) located at a depth of 93 m

  19. EXPLORING AND EVALUATING THE EFFECTS OF USER-ENHANCED VIDEO

    E-Print Network [OSTI]

    the quantitative and qualitative effects of this approach. For this purpose, I create a unique prototype basedEXPLORING AND EVALUATING THE EFFECTS OF USER-ENHANCED VIDEO BROWSING by roiy shpaner A thesis and consumption of video, in this thesis I explore the concept of user-enhanced video browsing and evaluate

  20. Name ________________ Exploring Marine Science at the Seymour Center

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Name ________________ Exploring Marine Science at the Seymour Center Purple Pod Page 1 of 3 (5 Science at the Seymour Center Purple Pod Page 2 of 3 (5/09) "Who Are Scientists?" (Purple Pod): ANSWER KEY ANSWER KEY__________________ Exploring Marine Science at the Seymour Center Purple Pod Page 3 of 3 (5

  1. Name _______________________ Exploring Marine Science at the Seymour Center

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Name _______________________ Exploring Marine Science at the Seymour Center Orange Pod Page 1 of 4;Name _____ANSWER KEY Exploring Marine Science at the Seymour Center Orange Pod Page 2 of 4 (5/09) "What at the Seymour Center Orange Pod Page 3 of 4 (5/09) "What is Science?" (Orange Pod): ANSWER KEY 3. Turn the drum

  2. Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics by Sarah A. Shull B #12;Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics by Sarah A. Shull to establish a manned outpost on the lunar surface, it is essential to consider the logistics of both

  3. Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics

    E-Print Network [OSTI]

    Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics Sarah A. Shull, Olivier Campaign Logistics by Sarah A. Shull B.S.E. Aerospace Engineering (2001) The University of Michigan) #12;4 Integrated Modeling and Simulation of Lunar Exploration Campaign Logistics by Sarah A. Shull

  4. Explorative study of African Americans and internet dating 

    E-Print Network [OSTI]

    Spates, Kamesha Sondranek

    2005-02-17

    -1 EXPLORATIVE STUDY OF AFRICAN AMERICANS AND INTERNET DATING A Thesis by KAMESHA SONDRANEK SPATES Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 2004 Major Subject: Sociology EXPLORATIVE STUDY OF AFRICAN AMERICANS AND INTERNET DATING A Thesis by KAMESHA SONDRANEK SPATES Submitted to Texas A...

  5. EQ3NR, a computer program for geochemical aqueous speciation-solubility calculations: Theoretical manual, user`s guide, and related documentation (Version 7.0); Part 3

    SciTech Connect (OSTI)

    Wolery, T.J.

    1992-09-14

    EQ3NR is an aqueous solution speciation-solubility modeling code. It is part of the EQ3/6 software package for geochemical modeling. It computes the thermodynamic state of an aqueous solution by determining the distribution of chemical species, including simple ions, ion pairs, and complexes, using standard state thermodynamic data and various equations which describe the thermodynamic activity coefficients of these species. The input to the code describes the aqueous solution in terms of analytical data, including total (analytical) concentrations of dissolved components and such other parameters as the pH, pHCl, Eh, pe, and oxygen fugacity. The input may also include a desired electrical balancing adjustment and various constraints which impose equilibrium with special pure minerals, solid solution end-member components (of specified mole fractions), and gases (of specified fugacities). The code evaluates the degree of disequilibrium in terms of the saturation index (SI = 1og Q/K) and the thermodynamic affinity (A = {minus}2.303 RT log Q/K) for various reactions, such as mineral dissolution or oxidation-reduction in the aqueous solution itself. Individual values of Eh, pe, oxygen fugacity, and Ah (redox affinity) are computed for aqueous redox couples. Equilibrium fugacities are computed for gas species. The code is highly flexible in dealing with various parameters as either model inputs or outputs. The user can specify modification or substitution of equilibrium constants at run time by using options on the input file.

  6. Sedimentological, mineralogical and geochemical definition of oil-shale facies in the lower Parachute Creek Member of Green River Formation, Colorado

    SciTech Connect (OSTI)

    Cole, R.D.

    1984-04-01

    Sedimentological, mineralogical and geochemical studies of two drill cores penetrating the lower Saline zone of the Parachute Creek Member (middle L-4 oil-shale zone through upper R-2 zone) of the Green River Formation in north-central Piceance Creek basin, Colorado, indicate the presence of two distinct oil-shale facies. The most abundant facies has laminated stratification and frequently occurs in the L-4, L-3 and L-2 oil-shale zones. The second, and subordinate facies, has ''streaked and blebby'' stratification and is most abundant in the R-4, R-3 and R-2 zones. Laminated oil shale originated by slow, regular sedimentation during meromictic phases of ancient Lake Uinta, whereas streaked and blebby oil shale was deposited by episodic, non-channelized turbidity currents. Laminated oil shale has higher contents of nahcolite, dawsonite, quartz, K-feldspar and calcite, but less dolomite/ankerite and albite than streaked and blebby oil shale. Ca-Mg-Fe carbonate minerals in laminated oil shale have more variable compositions than those in streaked and blebby shales. Streaked and blebby oil shale has more kerogen and a greater diversity of kerogen particles than laminated oil shale. Such variations may produce different pyrolysis reactions when each shale type is retorted.

  7. Exploring the randomness of Directed Acyclic Networks

    E-Print Network [OSTI]

    Joaquín Gońi; Bernat Corominas-Murtra; Ricard V. Solé; Carlos Rodríguez-Caso

    2010-06-11

    The feed-forward relationship naturally observed in time-dependent processes and in a diverse number of real systems -such as some food-webs and electronic and neural wiring- can be described in terms of so-called directed acyclic graphs (DAGs). An important ingredient of the analysis of such networks is a proper comparison of their observed architecture against an ensemble of randomized graphs, thereby quantifying the {\\em randomness} of the real systems with respect to suitable null models. This approximation is particularly relevant when the finite size and/or large connectivity of real systems make inadequate a comparison with the predictions obtained from the so-called {\\em configuration model}. In this paper we analyze four methods of DAG randomization as defined by the desired combination of topological invariants (directed and undirected degree sequence and component distributions) aimed to be preserved. A highly ordered DAG, called \\textit{snake}-graph and a Erd\\:os-R\\'enyi DAG were used to validate the performance of the algorithms. Finally, three real case studies, namely, the \\textit{C. elegans} cell lineage network, a PhD student-advisor network and the Milgram's citation network were analyzed using each randomization method. Results show how the interpretation of degree-degree relations in DAGs respect to their randomized ensembles depend on the topological invariants imposed. In general, real DAGs provide disordered values, lower than the expected by chance when the directedness of the links is not preserved in the randomization process. Conversely, if the direction of the links is conserved throughout the randomization process, disorder indicators are close to the obtained from the null-model ensemble, although some deviations are observed.

  8. Efficient ray tracing algorithms based on wavefront construction and model based interpolation method 

    E-Print Network [OSTI]

    Lee, Kyoung-Jin

    2006-08-16

    Understanding and modeling seismic wave propagation is important in regional and exploration seismology. Ray tracing is a powerful and popular method for this purpose. Wavefront construction (WFC) method handles wavefronts ...

  9. Researcher explores economics of U.S. urban water demand 

    E-Print Network [OSTI]

    Wythe, Kathy

    2009-01-01

    stream_source_info Researcher explores economics of U.S. urban water demand.pdf.txt stream_content_type text/plain stream_size 3811 Content-Encoding ISO-8859-1 stream_name Researcher explores economics of U.S. urban water demand....pdf.txt Content-Type text/plain; charset=ISO-8859-1 Story by Kathy Wythe tx H2O | pg. 24 Researcher explores economics of U.S. urban water demand Photo by: Danielle Supercinski tx H2O | pg. 25 With projected demands for future water supplies...

  10. ADVANCED RADIOISOTOPE HEAT SOURCE AND PROPULSION SYSTEMS FOR PLANETARY EXPLORATION

    SciTech Connect (OSTI)

    R. C. O'Brien; S. D. Howe; J. E. Werner

    2010-09-01

    The exploration of planetary surfaces and atmospheres may be enhanced by increasing the range and mobility of a science platform. Fundamentally, power production and availability of resources are limiting factors that must be considered for all science and exploration missions. A novel power and propulsion system is considered and discussed with reference to a long-range Mars surface exploration mission with in-situ resource utilization. Significance to applications such as sample return missions is also considered. Key material selections for radioisotope encapsulation techniques are presented.

  11. Casting methods

    SciTech Connect (OSTI)

    Marsden, Kenneth C.; Meyer, Mitchell K.; Grover, Blair K.; Fielding, Randall S.; Wolfensberger, Billy W.

    2012-12-18

    A casting device includes a covered crucible having a top opening and a bottom orifice, a lid covering the top opening, a stopper rod sealing the bottom orifice, and a reusable mold having at least one chamber, a top end of the chamber being open to and positioned below the bottom orifice and a vacuum tap into the chamber being below the top end of the chamber. A casting method includes charging a crucible with a solid material and covering the crucible, heating the crucible, melting the material, evacuating a chamber of a mold to less than 1 atm absolute through a vacuum tap into the chamber, draining the melted material into the evacuated chamber, solidifying the material in the chamber, and removing the solidified material from the chamber without damaging the chamber.

  12. Tensiometer methods

    DOE Patents [OSTI]

    Grover, Blair K.; Hubbell, Joel M.; Sisson, James B.; Casper, William L.

    2005-12-20

    A method for collecting data regarding a matric potential of a media includes providing a tensiometer having a stainless steel tensiometer casing, the stainless steel tensiometer casing comprising a tip portion which includes a wetted porous stainless steel membrane through which a matric potential of a media is sensed; driving the tensiometer into the media using an insertion tube comprising a plurality of probe casing which are selectively coupled to form the insertion tube as the tensiometer is progressively driven deeper into the media, wherein the wetted porous stainless steel membrane is in contact with the media; and sensing the matric potential the media exerts on the wetted porous stainless steel membrane by a pressure sensor in fluid hydraulic connection with the porous stainless steel membrane. A tensiometer includes a stainless steel casing.

  13. Using desktop graphics workstations for interactive remote exploration of large data sets

    SciTech Connect (OSTI)

    Freitag, L. A.; Loy, R. M.

    2000-05-09

    The interactive visualization and exploration of large scientific data sets is a challenging and difficult task; their size often far exceeds the performance and memory capacity of even the most powerful graphics workstations. To address this problem, we have created a technique that combines multiresolution data reduction methods with parallel computing to allow interactive exploration of large data sets while retaining full-resolution capability. We describe the creation of reduced data sets using several different criteria including user-specified error bounds or a preset performance criterion. We discuss the software architecture of the system with particular emphasis on the algorithms used to efficiently create a reduced data set and the software used to communicate between the remote data reduction server and the local graphics client. We present performance results for the visualization of Rayleigh-Taylor instability and hairpin vortex data sets.

  14. Tradespace model for planetary surface exploration hopping vehicles

    E-Print Network [OSTI]

    Cunio, Phillip M

    2012-01-01

    Robotic planetary surface exploration, which has greatly benefited humankind's scientific knowledge of the solar system, has to date been conducted by sedentary landers or by slow, terrain-limited rovers. However, there ...

  15. Human haptic perception is interrupted by explorative stops of milliseconds

    E-Print Network [OSTI]

    Grunwald, Martin

    Introduction: The explorative scanning movements of the hands have been compared to those of the eyes. The visual process is known to be composed of alternating phases of saccadic eye movements and fixation pauses. Descriptive ...

  16. Beyond pixels : exploring new representations and applications for motion analysis

    E-Print Network [OSTI]

    Liu, Ce, Ph. D. Massachusetts Institute of Technology

    2009-01-01

    The focus of motion analysis has been on estimating a flow vector for every pixel by matching intensities. In my thesis, I will explore motion representations beyond the pixel level and new applications to which these ...

  17. Exploring PropertiesSurface Coatings: Nano-Toss! Try this!

    E-Print Network [OSTI]

    Exploring Properties­Surface Coatings: Nano-Toss! Try this! 1. Presenter. Visitors experiment with modifying nano-ball's surface with different coatings: polymers, or decorative rhinestone-like stickers, or electrical tape.) 3. Visitors throw the coated

  18. Classroom Explorations: Pendulums, Mirrors, and Galileo’s Drama

    E-Print Network [OSTI]

    Cavicchi, Elizabeth

    What do you see in a mirror when not looking at yourself? What goes on as a pendulum swings? Undergraduates in a science class supposed that these behaviors were obvious until their explorations exposed questions with no ...

  19. A Structural Model Guide For Geothermal Exploration In Ancestral...

    Open Energy Info (EERE)

    A Structural Model Guide For Geothermal Exploration In Ancestral Mount Bao, Leyte, Philippines Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A...

  20. Kampala's shitscape: exploring urbanity and sanitation in Uganda 

    E-Print Network [OSTI]

    Terreni Brown, Stephanie Elizabeth; Brown, Stephanie

    2014-11-27

    In this thesis, I explore the collective excrement apparatus of Kampala, or the “shitscape”. I consider the diverse ways that the city’s inhabitants utilise different materials to manage their daily defecation, from flush ...

  1. Design space exploration and optimization using modern ship design tools

    E-Print Network [OSTI]

    Jones, Adam T. (Adam Thomas)

    2014-01-01

    Modern Naval Architects use a variety of computer design tools to explore feasible options for clean sheet ship designs. Under the Naval Sea Systems Command (NAVSEA), the Naval Surface Warfare Center, Carderock Division ...

  2. How Will We Explore Earth's Final Frontier? | GE Global Research

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

    on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) Invention Factory: How Will We Explore Earth's Final Frontier? In this episode of Invention...

  3. Low Cost Exploration, Testing, And Development Of The Chena Geothermal...

    Open Energy Info (EERE)

    Et Al., 2007) Areas (1) Chena Area Regions (0) Retrieved from "http:en.openei.orgwindex.php?titleLowCostExploration,Testing,AndDevelopmentOfTheChenaGeothermalRes...

  4. Space Nuclear Program INL's role in energizing exploration

    ScienceCinema (OSTI)

    Idaho National Laboratory

    2010-01-08

    Idaho National Laboratory is helping make space exploration possible with the development of radioisotope power systems, which can work in areas too harsh and too isolated in space where the suns rays cannot be used for energy.

  5. Exploring Geometries of SRF Cavities for a Future Muon Collider

    E-Print Network [OSTI]

    Geng, Rong-Li

    application of super- conducting RF cavities in a future muon collider. Such RF cavities are expected to workExploring Geometries of SRF Cavities for a Future Muon Collider Rong-Li Geng LEPP, Cornell

  6. Designing Intelligent Agents Tutorial 2: Exploring the Environment

    E-Print Network [OSTI]

    Alechina, Natasha

    problem ­ not just for exploration) ­maintenance goals? ­... © Brian Logan 2013 G54DIA Tutorial 2 from the fuel pump is equal to the amount of fuel remaining, then return to the pump · deliberative

  7. Exploration and Empire: Iconographic Evidence of Iberian Ships of Discovery 

    E-Print Network [OSTI]

    Bojakowski, Katie

    2011-08-08

    This dissertation research project focuses on maritime exploration during the Age of Discovery and the vessels that were the technological impetus for this dynamic era that ultimately led Christopher Columbus to the New ...

  8. GE Researcher Explores Science Behind Movie Chappie | GE Global...

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

    When Will We Have Robot Best Friends? A GE Researcher Explores the Science Behind Movie Magic Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new...

  9. Exploring Opportunities for Social Infrastructure in Congestive Heart

    E-Print Network [OSTI]

    Chen, Yiling

    Exploring Opportunities for Social Infrastructure in Congestive Heart Failure Management Sunyoung Congestive Heart Failure (CHF), since it is one of serious health threats among the elderly population diseases. Author Keywords Congestive heart failure, Chronic disease, Healthcare technology, Self

  10. Two urban corners : a design exploration for the Holloway block

    E-Print Network [OSTI]

    Cabot, Thomas Dudley

    1982-01-01

    This thesis explores built possibilities for two public street corners at the Holloway Block in Burlington, Vermont The site is at the historic commercial center of the town, and consisted until recently of abandoned ...

  11. Kring/Space Sciences 2006 Lunar Exploration Initiative

    E-Print Network [OSTI]

    Rathbun, Julie A.

    to maintain ready access to shelter in case these types of storms occur Updated 3 April 2006 #12;Kring/Space Sciences 2006 Lunar Exploration Initiative Galactic Cosmic Rays · Isotropic field of GCR exist at Earth

  12. SKOPE - a SKeleton framewOrk for Performance Exploration | Argonne...

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

    SKOPE - a SKeleton framewOrk for Performance Exploration Event Sponsor: Argonne Leadership Computing Facility Seminar Start Date: Sep 8 2015 - 12:00pm BuildingRoom: Building 241...

  13. T-593: Microsoft Internet Explorer unspecified code execution

    Broader source: Energy.gov [DOE]

    Unspecified vulnerability in Microsoft Internet Explorer 8 on Windows 7 allows remote attackers to bypass Protected Mode and create arbitrary files by leveraging access to a Low integrity process.

  14. Deployment algorithms for multi-agent exploration and patrolling

    E-Print Network [OSTI]

    Volkov, Mikhail, S.M. Massachusetts Institute of Technology

    2013-01-01

    Exploration and patrolling are central themes in distributed robotics. These deployment scenarios have deep fundamental importance in robotics, beyond the most obvious direct applications, as they can be used to model a ...

  15. Lunar lander propellant production for a multiple site exploration mission

    E-Print Network [OSTI]

    Neubert, Joshua, 1981-

    2004-01-01

    A model has been developed to analyze the benefit of utilizing a processing plant architecture so that a lunar oxygen production demonstration mission can also provide a significant exploration and scientific return. This ...

  16. Exploring large coherent spin systems with solid state NMR

    E-Print Network [OSTI]

    Cho, HyungJoon, Ph. D. Massachusetts Institute of Technology

    2005-01-01

    Solid state Nuclear Magnetic Resonance (NMR) allows us to explore a large coherent spin system and provides an ideal test-bed for studying strongly interacting multiple-spin system in a large Hilbert space. In this thesis, ...

  17. Automatic Design Exploration Framework for Multicores with Reconfigurable Accelerators

    E-Print Network [OSTI]

    Kasahara, Hironori

    Automatic Design Exploration Framework for Multicores with Reconfigurable Accelerators Cecilia Gonz that performs au- tomatic generation of fine-grained accelerators, automatic parallelization, and testing. The automatic generation of accelerators is accomplished by an in-house developed software. Automatic

  18. Analysis Of Application Of Electronics In Exploration And Exploitation...

    Open Energy Info (EERE)

    Analysis Of Application Of Electronics In Exploration And Exploitation Of Geothermal-Energy Sources In India Jump to: navigation, search OpenEI Reference LibraryAdd to library...

  19. Edinburgh Research Explorer Lung Microbiota Changes Associated with Chronic

    E-Print Network [OSTI]

    Millar, Andrew J.

    Edinburgh Research Explorer Lung Microbiota Changes Associated with Chronic Pseudomonas aeruginosa Lung Infection and the Impact of Intravenous Colistimethate Sodium Citation for published version, 'Lung Microbiota Changes Associated with Chronic Pseudomonas aeruginosa Lung Infection and the Impact

  20. A Business Process Explorer: Recovering Business Processes from Business Applications

    E-Print Network [OSTI]

    Zou, Ying

    processes, and visualizing business processes using commercial business process modeling tools, such as IBM WebSphere Business Modeler (WBM) [4]. Traceability between business processes and business1 A Business Process Explorer: Recovering Business Processes from Business Applications Jin Guo

  1. SpiritMars Exploration Rovers National Aeronautics and

    E-Print Network [OSTI]

    Murdo" panorama, captured by the panoramic camera (Pancam) on NASA's Mars Exploration Rover Spirit. From April, exposed bright underlying material. This bright material is evidence of sulfur-rich salty minerals

  2. Camera for the invisible : toward a toolkit for urban exploration

    E-Print Network [OSTI]

    Silver, Jay (Jay Saul)

    2008-01-01

    We are disconnected from our environment. We can't reconnect because we can't even see the Nature within our urban surroundings. Inspired by urban explorers and Nature Awareness traditions, I will develop methodologies and ...

  3. Generation of museum web pages: The intelligent labelling explorer

    E-Print Network [OSTI]

    Hitzeman, Janet; Mellish, Chris; Oberlander, Jon

    1997-01-01

    The first phase of the Intelligent Labelling Explorer project has built the ILEX-1.1 system, which uses artificial intelligence technology to generate descriptions of objects displayed in a museum gallery. Each description ...

  4. Name __________________ Exploring Marine Science at the Seymour Center

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Name __________________ Exploring Marine Science at the Seymour Center SH 9/08 Asking Questions at the Seymour Center SH 9/08 Asking Questions Page 2 of 2 Asking Questions (Aquarium Tanks): ANSWER KEY Read all

  5. RAPID/Geothermal/Exploration/Colorado | 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/Colorado < RAPID‎ | Geothermal‎ | Exploration Jump to: navigation, search RAPID

  6. RAPID/Geothermal/Exploration/Federal | 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/Colorado < RAPID‎ | Geothermal‎ | Exploration Jump to: navigation, search

  7. RAPID/Geothermal/Exploration/Hawaii | 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/Colorado < RAPID‎ | Geothermal‎ | Exploration Jump to: navigation,

  8. RAPID/Geothermal/Exploration/Hawaii | 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/Colorado < RAPID‎ | Geothermal‎ | Exploration Jump to:

  9. RAPID/Geothermal/Exploration/Idaho | 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/Colorado < RAPID‎ | Geothermal‎ | Exploration Jump

  10. RAPID/Geothermal/Exploration/Montana | 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/Colorado < RAPID‎ | Geothermal‎ | Exploration

  11. RAPID/Geothermal/Exploration/New Mexico | 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/Colorado < RAPID‎ | Geothermal‎ |RAPID/Geothermal/Exploration/New Mexico <

  12. RAPID/Geothermal/Exploration/Oregon | 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/Colorado < RAPID‎ | Geothermal‎ |RAPID/Geothermal/Exploration/New Mexico

  13. RAPID/Geothermal/Exploration/Oregon | 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/Colorado < RAPID‎ | Geothermal‎ |RAPID/Geothermal/Exploration/New MexicoPage Edit

  14. RAPID/Geothermal/Exploration/Texas | 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/Colorado < RAPID‎ | Geothermal‎ |RAPID/Geothermal/Exploration/New MexicoPage

  15. RAPID/Geothermal/Exploration/Texas | 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/Colorado < RAPID‎ | Geothermal‎ |RAPID/Geothermal/Exploration/New

  16. RAPID/Geothermal/Exploration/Utah | 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/Colorado < RAPID‎ | Geothermal‎RAPID/Geothermal/Exploration/Utah < RAPID‎ |

  17. RAPID/Geothermal/Exploration/Washington | 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/Colorado < RAPID‎ | Geothermal‎RAPID/Geothermal/Exploration/Utah < RAPID‎

  18. Explore Careers in Wind Power | 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 Fuelsof Energy Services » Program Management »EricExplorationWind Power Explore

  19. Small Body Exploration Technologies as Precursors for Interstellar Robotics

    SciTech Connect (OSTI)

    Noble, Robert; /SLAC; Sykes, Mark V.; /PSI, Tucson

    2012-02-15

    The scientific activities undertaken to explore our Solar System will be the same as required someday at other stars. The systematic exploration of primitive small bodies throughout our Solar System requires new technologies for autonomous robotic spacecraft. These diverse celestial bodies contain clues to the early stages of the Solar System's evolution as well as information about the origin and transport of water-rich and organic material, the essential building blocks for life. They will be among the first objects studied at distant star systems. The technologies developed to address small body and outer planet exploration will form much of the technical basis for designing interstellar robotic explorers. The Small Bodies Assessment Group, which reports to NASA, initiated a Technology Forum in 2011 that brought together scientists and technologists to discuss the needs and opportunities for small body robotic exploration in the Solar System. Presentations and discussions occurred in the areas of mission and spacecraft design, electric power, propulsion, avionics, communications, autonomous navigation, remote sensing and surface instruments, sampling, intelligent event recognition, and command and sequencing software. In this paper, the major technology themes from the Technology Forum are reviewed, and suggestions are made for developments that will have the largest impact on realizing autonomous robotic vehicles capable of exploring other star systems.

  20. Update on petroleum exploration activities in the Philippines

    SciTech Connect (OSTI)

    Salcedo, B.H.C.; Bausa, G.J.G.; Ocampo. I.U.

    1996-01-01

    The first significant event in Philippine Petroleum exploration dates back to 1896 with the drilling of Toledo-1 in Cebu by Smith Bell. From the 1950's to the 1970's, widespread exploration activities were carried out but it was only eighty years after the first oil drilling in 1896 that oil was finally discovered in commercial quantity in Northwest Palawan. This could be attributed to the fact that serious exploration for petroleum was made with the enactment of Presidential Decree No. 87, better known as the [open quotes]Oil Exploration and Development Act of 1972[close quotes], which takes into effect the current Service Contract System. Amendments to P.D. No. 87 is underway to further improve its incentive package and make it more attractive to explorationists. Petroleum exploration in the Philippines continues to be an energetic industry even if the players are not always rewarded with finds. Frontier areas have become attractive for exploration in view of the continuing research studies resulting to increased database thereat. While Northwest Palawan continues to be the hub of action, frontier areas as well as the more risky deepwater acreages still generate interests, if one wishes to be an active player in a growing energy-hungry economy.

  1. Update on petroleum exploration activities in the Philippines

    SciTech Connect (OSTI)

    Salcedo, B.H.C.; Bausa, G.J.G.; Ocampo. I.U.

    1996-12-31

    The first significant event in Philippine Petroleum exploration dates back to 1896 with the drilling of Toledo-1 in Cebu by Smith & Bell. From the 1950`s to the 1970`s, widespread exploration activities were carried out but it was only eighty years after the first oil drilling in 1896 that oil was finally discovered in commercial quantity in Northwest Palawan. This could be attributed to the fact that serious exploration for petroleum was made with the enactment of Presidential Decree No. 87, better known as the {open_quotes}Oil Exploration and Development Act of 1972{close_quotes}, which takes into effect the current Service Contract System. Amendments to P.D. No. 87 is underway to further improve its incentive package and make it more attractive to explorationists. Petroleum exploration in the Philippines continues to be an energetic industry even if the players are not always rewarded with finds. Frontier areas have become attractive for exploration in view of the continuing research studies resulting to increased database thereat. While Northwest Palawan continues to be the hub of action, frontier areas as well as the more risky deepwater acreages still generate interests, if one wishes to be an active player in a growing energy-hungry economy.

  2. RISK REDUCTION WITH A FUZZY EXPERT EXPLORATION TOOL

    SciTech Connect (OSTI)

    Robert S. Balch; Ron Broadhead

    2005-03-01

    Incomplete or sparse data such as geologic or formation characteristics introduce a high level of risk for oil exploration and development projects. ''Expert'' systems developed and used in several disciplines and industries have demonstrated beneficial results when working with sparse data. State-of-the-art expert exploration tools, relying on a database, and computer maps generated by neural networks and user inputs, have been developed through the use of ''fuzzy'' logic, a mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk has been reduced with the use of these properly verified and validated ''Fuzzy Expert Exploration (FEE) Tools.'' Through the course of this project, FEE Tools and supporting software were developed for two producing formations in southeast New Mexico. Tools of this type can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs. In today's oil industry environment, many smaller exploration companies lack the resources of a pool of expert exploration personnel. Downsizing, volatile oil prices, and scarcity of domestic exploration funds have also affected larger companies, and will, with time, affect the end users of oil industry products in the U.S. as reserves are depleted. The FEE Tools benefit a diverse group in the U.S., allowing a more efficient use of scarce funds, and potentially reducing dependence on foreign oil and providing lower product prices for consumers.

  3. Dynamics of spintronic materials: Exploration in the time and frequency domain

    SciTech Connect (OSTI)

    Zabel, Hartmut

    2014-12-14

    X-ray and neutron reflectivity are mature experimental techniques for the exploration of film thicknesses and interface roughnesses on the nanoscale. Combining with photon and neutron polarization, these methods can be carried forward to the analysis of magnetic thin films and magnetic domain structures. New opportunities open up when these methods are used either in the time or in the frequency domain. Then dynamical processes can be studied such as domain oscillations, domain propagation, precession of spins, and damping effects. Two methods are discussed which have been developed recently: polarized neutron reflectivity from magnetic films in an alternating magnetic field and time resolved resonant magnetic x-ray reflectivity of the free precessional dynamics in films and multilayers.

  4. Synthetic Self-Healing Methods

    SciTech Connect (OSTI)

    Bello, Mollie [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-06-02

    Given enough time, pressure, temperature fluctuation, and stress any material will fail. Currently, synthesized materials make up a large part of our everyday lives, and are used in a number of important applications such as; space travel, under water devices, precise instrumentation, transportation, and infrastructure. Structural failure of these material scan lead to expensive and dangerous consequences. In an attempt to prolong the life spans of specific materials and reduce efforts put into repairing them, biologically inspired, self-healing systems have been extensively investigated. The current review explores recent advances in three methods of synthesized self-healing: capsule based, vascular, and intrinsic. Ideally, self-healing materials require no human intervention to promote healing, are capable of surviving all the steps of polymer processing, and heal the same location repeatedly. Only the vascular method holds up to all of these idealities.

  5. Developing the global exploration roadmap: An example using the humans to the lunar surface theme

    E-Print Network [OSTI]

    Developing the global exploration roadmap: An example using the humans to the lunar surface theme C: Space exploration Lunar exploration Global exploration roadmap Test bed a b s t r a c t The development of the Global Exploration Roadmap (GER) by 12 space agencies participating in the International Space

  6. CREATING A GEOLOGIC PLAY BOOK FOR TRENTON-BLACK RIVER APPALACHIAN BASIN EXPLORATION

    SciTech Connect (OSTI)

    Douglas G. Patchen; Katharine Lee Avary; John M. Bocan; Michael Hohn; John B. Hickman; Paul D. Lake; James A. Drahovzal; Christopher D. Laughrey; Jaime Kostelnik; Taury Smith; Ron Riley; Mark Baranoski

    2005-04-01

    The Trenton-Black River Appalachian Basin Research Consortium has made significant progress toward their goal of producing a geologic play book for the Trenton-Black River gas play. The final product will include a resource assessment model of Trenton-Black River reservoirs; possible fairways within which to concentrate further studies and seismic programs; and a model for the origin of Trenton-Black River hydrothermal dolomite reservoirs. All seismic data available to the consortium have been examined. Synthetic seismograms constructed for specific wells have enabled researchers to correlate the tops of 15 stratigraphic units determined from well logs to seismic profiles in New York, Pennsylvania, Ohio, West Virginia and Kentucky. In addition, three surfaces for the area have been depth converted, gridded and mapped. A 16-layer velocity model has been developed to help constrain time-to-depth conversions. Considerable progress was made in fault trend delineation and seismic-stratigraphic correlation within the project area. Isopach maps and a network of gamma-ray cross sections supplemented with core descriptions allowed researchers to more clearly define the architecture of the basin during Middle and Late Ordovician time, the control of basin architecture on carbonate and shale deposition and eventually, the location of reservoirs in Trenton Limestone and Black River Group carbonates. The basin architecture itself may be structurally controlled, and this fault-related structural control along platform margins influenced the formation of hydrothermal dolomite reservoirs in original limestone facies deposited in high energy environments. This resulted in productive trends along the northwest margin of the Trenton platform in Ohio. The continuation of this platform margin into New York should provide further areas with good exploration potential. The focus of the petrographic study shifted from cataloging a broad spectrum of carbonate rocks that occur in the Trenton-Black River interval to delineation of regional limestone diagenesis in the basin. A consistent basin-wide pattern of marine and burial diagenesis that resulted in relatively low porosity and permeability in the subtidal facies of these rocks has been documented across the study area. Six diagenetic stages have been recognized: four marine diagenesis stages and two burial diagenesis stages. This dominance of extensive marine and burial diagenesis yielded rocks with low reservoir potential, with the exception of fractured limestone and dolostone reservoirs. Commercial amounts of porosity, permeability and petroleum accumulation appear to be restricted to areas where secondary porosity developed in association with hydrothermal fluid flow along faults and fractures related to basement tectonics. A broad range of geochemical and fluid inclusion analyses have aided in a better understanding of the origin of the dolomites in the Trenton and Black River Groups over the study area. The results of these analyses support a hydrothermal origin for all of the various dolomite types found to date. The fluid inclusion data suggest that all of the dolomite types analyzed formed from hot saline brines. The dolomite is enriched in iron and manganese, which supports a subsurface origin for the dolomitizing brine. Strontium isotope data suggest that the fluids passed through basement rocks or immature siliciclastic rocks prior to forming the dolomites. All of these data suggest a hot, subsurface origin for the dolomites. The project database continued to be redesigned, developed and deployed. Production data are being reformatted for standard relational database management system requirements. Use of the project intranet by industry partners essentially doubled during the reporting period.

  7. AN ECONOMIC EXPLORATION OF PREVENTION VERSUS RESPONSE IN ANIMAL RELATED BIOTERRORISM DECISION MAKING

    E-Print Network [OSTI]

    McCarl, Bruce A.

    AN ECONOMIC EXPLORATION OF PREVENTION VERSUS RESPONSE IN ANIMAL RELATED BIOTERRORISM DECISION Major Subject: Agricultural Economics #12;AN ECONOMIC EXPLORATION OF PREVENTION VERSUS RESPONSE of Department) December 2004 Major Subject: Agricultural Economics #12;iii ABSTRACT An Economic Exploration

  8. ENZYME ACTIVITY PROBE AND GEOCHEMICAL ASSESSMENT FOR POTENTIAL AEROBIC COMETABOLISM OF TRICHLOROETHENE IN GROUNDWATER OF THE NORTHWEST PLUME, PADUCAH GASEOUS DIFFUSION PLANT, KENTUCKY

    SciTech Connect (OSTI)

    Looney, B; M. Hope Lee, M; S. K. Hampson, S

    2008-06-27

    The overarching objective of the Paducah Gaseous Diffusion Plant (PGDP) enzyme activity probe (EAP) effort is to determine if aerobic cometabolism is contributing to the attenuation of trichloroethene (TCE) and other chlorinated solvents in the contaminated groundwater beneath PGDP. The site-specific objective for the EAP assessment is to identify if key metabolic pathways are present and expressed in the microbial community--namely the pathways that are responsible for degradation of methane and aromatic (e.g. toluene, benzene, phenol) substrates. The enzymes produced to degrade methane and aromatic compounds also break down TCE through a process known as cometabolism. EAPs directly measure if methane and/or aromatic enzyme production pathways are operating and, for the aromatic pathways, provide an estimate of the number of active organisms in the sampled groundwater. This study in the groundwater plumes at PGDP is a major part of a larger scientific effort being conducted by Interstate Technology and Regulatory Council (ITRC), U.S. Department of Energy (DOE) Office of Environmental Management (EM), Savannah River National Laboratory (SRNL), and North Wind Inc. in which EAPs are being applied to contaminated groundwater from diverse hydrogeologic and plume settings throughout the U.S. to help standardize their application as well as their interpretation. While EAP data provide key information to support the site specific objective for PGDP, several additional lines of evidence are being evaluated to increase confidence in the determination of the occurrence of biodegradation and the rate and sustainability of aerobic cometabolism. These complementary efforts include: (1) Examination of plume flowpaths and comparison of TCE behavior to 'conservative' tracers in the plume (e.g., {sup 99}Tc); (2) Evaluation of geochemical conditions throughout the plume; and (3) Evaluation of stable isotopes in the contaminants and their daughter products throughout the plume. If the multiple lines of evidence support the occurrence of cometabolism and the potential for the process to contribute to temporal and spatial attenuation of TCE in PGDP groundwater, then a follow-up enzyme probe microcosm study to better estimate biological degradation rate(s) is warranted.

  9. RISK REDUCTION WITH A FUZZY EXPERT EXPLORATION TOOL

    SciTech Connect (OSTI)

    Robert Balch

    2003-04-15

    Incomplete or sparse information on types of data such as geologic or formation characteristics introduces a high level of risk for oil exploration and development projects. ''Expert'' systems developed and used in several disciplines and industries have demonstrated beneficial results. A state-of-the-art exploration ''expert'' tool, relying on a computerized database and computer maps generated by neural networks, is being developed through the use of ''fuzzy'' logic, a relatively new mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk can be reduced with the use of a properly developed and validated ''Fuzzy Expert Exploration (FEE) Tool.'' This FEE Tool can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs. In the 1998-1999 oil industry environment, many smaller exploration companies lacked the resources of a pool of expert exploration personnel. Downsizing, low oil prices, and scarcity of exploration funds have also affected larger companies, and will, with time, affect the end users of oil industry products in the U.S. as reserves are depleted. The pool of experts is much reduced today. The FEE Tool will benefit a diverse group in the U.S., leading to a more efficient use of scarce funds, and possibly decreasing dependence on foreign oil and lower product prices for consumers. This fourth of five annual reports contains a summary of progress to date, problems encountered, plans for the next year, and an assessment of the prospects for future progress. The emphasis during the April 2002 through March 2003 period was directed toward Silurian-Devonian geology, development of rules for the fuzzy system, and on-line software.

  10. RISK REDUCTION WITH A FUZZY EXPERT EXPLORATION TOOL

    SciTech Connect (OSTI)

    Robert Balch

    2003-10-15

    Incomplete or sparse information on types of data such as geologic or formation characteristics introduces a high level of risk for oil exploration and development projects. ''Expert'' systems developed and used in several disciplines and industries have demonstrated beneficial results. A state-of-the-art exploration ''expert'' tool, relying on a computerized database and computer maps generated by neural networks, is being developed through the use of ''fuzzy'' logic, a relatively new mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk can be reduced with the use of a properly developed and validated ''Fuzzy Expert Exploration (FEE) Tool.'' This FEE Tool can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs. In the 1998-1999 oil industry environment, many smaller exploration companies lacked the resources of a pool of expert exploration personnel. Downsizing, low oil prices, and scarcity of exploration funds have also affected larger companies, and will, with time, affect the end users of oil industry products in the U.S. as reserves are depleted. The FEE Tool will benefit a diverse group in the U.S., leading to a more efficient use of scarce funds, and possibly decreasing dependence on foreign oil and lower product prices for consumers. This ninth of ten semi-annual reports contains a summary of progress to date, problems encountered, plans for the next year, and an assessment of the prospects for future progress. The emphasis during the March 2003 through September 2003 period was directed toward Silurian-Devonian geology, development of rules for the fuzzy system, and on-line software.

  11. RISK REDUCTION WITH A FUZZY EXPERT EXPLORATION TOOL

    SciTech Connect (OSTI)

    Robert Balch

    2004-04-08

    Incomplete or sparse information on types of data such as geologic or formation characteristics introduces a high level of risk for oil exploration and development projects. ''Expert'' systems developed and used in several disciplines and industries have demonstrated beneficial results. A state-of-the-art exploration ''expert'' tool, relying on a computerized database and computer maps generated by neural networks, is being developed through the use of ''fuzzy'' logic, a relatively new mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk can be reduced with the use of a properly developed and validated ''Fuzzy Expert Exploration (FEE) Tool.'' This FEE Tool can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs. In the 1998-1999 oil industry environment, many smaller exploration companies lacked the resources of a pool of expert exploration personnel. Downsizing, low oil prices, and scarcity of exploration funds have also affected larger companies, and will, with time, affect the end users of oil industry products in the U.S. as reserves are depleted. The FEE Tool will benefit a diverse group in the U.S., leading to a more efficient use of scarce funds, and possibly decreasing dependence on foreign oil and lower product prices for consumers. This fifth annual (and tenth of 12 semi-annual reports) contains a summary of progress to date, problems encountered, plans for the next year, and an assessment of the prospects for future progress. The emphasis during the March 2003 through March 2004 period was directed toward completion of the Brushy Canyon FEE Tool and to Silurian-Devonian geology, and development of rules for the Devonian fuzzy system, and on-line software.

  12. Risk Reduction with a Fuzzy Expert Exploration Tool

    SciTech Connect (OSTI)

    Weiss, William W.; Broadhead, Ron; Mundorf, William R.

    2003-03-06

    A state-of-the-art exploration ''expert'' tool, relying on a computerized database and computer maps generated by neural networks, was developed through the use of ''fuzzy'' logic, a relatively new mathematical treatment of imprecise or non-explicit parameters and values. Oil prospecting risk can be reduced with the use of a properly developed and validated ''Fuzzy Expert Exploration (FEE) Tool.'' This FEE Tool can be beneficial in many regions of the U.S. by enabling risk reduction in oil and gas prospecting as well as decreased prospecting and development costs.

  13. Geochemical Techniques | 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 View New PagesSustainable UrbanKentucky: EnergyGateway EditOpenTechniques Jump to: navigation,

  14. Exploration of Melt Spinning as a Route to Large Volume Production...

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

    Exploration of Melt Spinning as a Route to Large Volume Production of Skutterudite Thermoelectric Materials Exploration of Melt Spinning as a Route to Large Volume Production of...

  15. Hydrogeological-Geophysical Methods for Subsurface Site Characterization - Final Report

    SciTech Connect (OSTI)

    Rubin, Yoram

    2001-01-01

    The goal of this research project is to increase water savings and show better ecological control of natural vegetation by developing hydrogeological-geophysical methods for characterizing the permeability and content of water in soil. The ground penetrating radar (GPR) tool was developed and used as the surface geophysical method for monitoring water content. Initial results using the tool suggest that surface GPR is a viable technique for obtaining precision volumetric water content profile estimates, and that laboratory-derived petrophysical relationships could be applied to field-scale GPR data. A field-scale bacterial transport study was conducted within an uncontaminated sandy Pleistocene aquifer to evaluate the importance of heterogeneity in controlling the transport of bacteria. Geochemical, hydrological, geological, and geophysical data were collected to characterize the site prior to and after chemical and bacterial injection experiments. Study results shows that, even within the fairly uniform shallow marine deposits of the narrow channel focus area, heterogeneity existed that influenced the chemical tracer transport over lateral distances of a few meters and vertical distances of less than a half meter. The interpretation of data suggest that the incorporation of geophysical data with limited hydrological data may provide valuable information about the stratigraphy, log conductivity values, and the spatial correlation structure of log conductivity, which have traditionally been obtainable only by performing extensive and intrusive hydrological sampling.

  16. Wriggle: An Exploration of Emotional and Social Effects of Movement

    E-Print Network [OSTI]

    Isbister, Katherine

    Wriggle: An Exploration of Emotional and Social Effects of Movement Abstract Wriggle is a research to see whether movement adds emotional impact and increases social connectedness. We found effects the emotional and social effects of movement as a game mechanic (versus keyboard input). The most closely

  17. Blended Shelf: Reality-based Presentation and Exploration of Library

    E-Print Network [OSTI]

    Reiterer, Harald

    Blended library; shelf browsing; digital library ACM Classification Keywords H.5.2. [InformationBlended Shelf: Reality-based Presentation and Exploration of Library Collections Abstract We location of the library. Blended Shelf offers a 3D visualization of library collections

  18. Implementing the Vision 2nd Space Exploration Conference

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Robotic and Human mission definition · Prepare for Human exploration of Mars · Early experiments and demos 2020 · Extend human presence across the solar system and beyond · Implement a sustained and affordable human and robotic program · Develop supporting innovative technologies, knowledge, and infrastructures

  19. Validation of Innovative Exploration Technologies for Newberry Volcano

    Broader source: Energy.gov [DOE]

    DOE Geothermal Technologies Peer Review - 2010. Project summary: To effectively combine numerous exploration technologies to gather important data. Once information is combined into 3-D models, a target drilling location will be determined. Deep well capable of finding commercial quantities of geothermal resource will be drilled to validate methodology.

  20. Roadmap for Venus Exploration (rev. 3, Dec 5, 2013)

    E-Print Network [OSTI]

    Rathbun, Julie A.

    1 Roadmap for Venus Exploration (rev. 3, Dec 5, 2013) Introduction Venus is so similar, and the likelihood of habitable planets in other solar systems. This Roadmap lays out a framework for the future proposals. Proposals that address the measurement goals expressed in this Roadmap should be recognized