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Geology, hydrothermal petrology, stable isotope geochemistry, and fluid inclusion geothermometry of LASL geothermal test well C/T-1 (Mesa 31-1), East Mesa, Imperial Valley, California, USA

Description: Borehole Mesa 31-1 (LASL C/T-1) is an 1899-m (6231-ft) deep well located in the northwestern part of the East Mesa Geothermal Field. Mesa 31-1 is the first Calibration/Test Well (C/T-1) in the Los Alamos Scientific Laboratory (LASL), Geothermal Log Interpretation Program. The purpose of this study is to provide a compilation of drillhole data, drill cuttings, well lithology, and formation petrology that will serve to support the use of well LASL C/T-1 as a calibration/test well for geothermal l… more
Date: August 1, 1980
Creator: Miller, K. R. & Elders, W. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mineralogy in the Waste Isolation Pilot Plant (WIPP) facility stratigraphic horizon

Description: Forty-six samples were selected for this study from two cores, one extending 50 ft up through the roof of the WIPP facility and the other penetrating 50 ft below the facility floor. These samples, selected from approximately every other foot of core length, represent the major lithologies present in the immediate vicinity of the WIPP facility horizon: ''clean'' halite, polyhalitic halite, argillaceous halite, and mixed polyhalitic-argillaceous halite. Samples were analyzed for non-NaCl mineralo… more
Date: September 1, 1985
Creator: Stein, C. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Drilling fluid/formation interaction at simulated in situ geothermal conditions. Final report

Description: Interaction of drilling fluids with a geothermal reservoir formation can result in significant permeability impairment and therefore reduced well productivity. This interaction is studied under simulated in situ geothermal conditions of overburden stress, pore fluid pressure, temperature, and pore fluid chemistry. Permeability impairment of an East Mesa KGRA reservoir material is evaluated as a function of stagnation time, drilling fluid, and temperature. Results indicate that all of these para… more
Date: July 1, 1980
Creator: Enniss, D. O.; Bergosh, J. L.; Butters, S. W. & Jones, A. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Study of rock-water-nuclear waste interactions in the Pasco Basin, Washington. Part I. Distribution and composition of secondary and primary mineral phases in basalts of the Pasco Basin, Washington

Description: In Part I of this report the results of Task III are presented and discussed. The subject of Task III is the study and identification of secondary and primary mineral assemblages in basalts of the Pasco Basin of southeastern Washington. In particular, we have determined the relative amounts, crystallization sequence, and compositions of secondary minerals found lining vesicle and fracture surfaces. This information, together with data on the chemical composition of primary minerals and the exte… more
Date: September 1, 1979
Creator: Benson, L. V. & Teague, L. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geological and geochemical aspects of uranium deposits: a selected, annotated bibliography. [474 references]

Description: 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) … more
Date: September 1, 1980
Creator: Thomas, J. M.; Garland, P. A.; White, M. B. & Daniel, E. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemical trends in the Ice Springs basalt, Black Rock Desert, Utah

Description: The Holocene Ice Springs volcanic field of west-central Utah consists of 0.53 km/sup 3/ of tholeiitic basalts erupted as a sequence of nested cinder cones and associated lava flows. Whole rock x-ray fluorescence and atomic absorption analysis of ninety-six samples of known relative age document statistically significant inter- and intra-eruption chemical variations. Elemental trends include increases in Ti, Fe, Ca, P, and Sr and decreases in Si, K, Rb, Ni, Cr, and Zr with decreasing age. Microp… more
Date: June 1980
Creator: Lynch, W. C. & Nash, W. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geological Interpretation of Self-Potential Data From the Cerro Prieto Geothermal Field

Description: A source mechanism based on concepts of irreversible thermodynamics and consisting of heat or fluid flow along a north-south trending zone of faulting is proposed for the self-potential anomaly measured over the Cerro Prieto geothermal reservoir. The source region is represented by a vertical plane of that separates regions of differing streaming potential or thermoelectric coupling coefficients. The coupling coefficient contrast could be caused by vertical offset of rock units along faults. Th… more
Date: February 1, 1980
Creator: Corwin, R. F. & Fitterman, D. V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Radioactive Waste Isolation in Salt: Geochemistry of Brine in Rock Salt in Temperature Gradients and Gamma-Radiation Fields - a Selective Annotated Bibliography

Description: Evaluation of the extensive research concerning brine geochemistry and transport is critically important to successful exploitation of a salt formation for isolating high-level radioactive waste. This annotated bibliography has been compiled from documents considered to provide classic background material on the interactions between brine and rock salt, as well as the most important results from more recent research. Each summary elucidates the information or data most pertinent to situations e… more
Date: July 1, 1985
Creator: Hull, A. B. & Williams, L. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology of the Hanna Formation, Hanna Underground Coal Gasification Site, Hanna, Wyoming

Description: The Hanna Underground Coal Gasification (UCG) study area consists of the SW1/4 of Section 29 and the E1/2SE1/4 of Section 30 in Township 22 North, Range 81 West, Wyoming. Regionally, this is located in the coal-bearing Hanna Syncline of the Hanna Basin in southeast Wyoming. The structure of the site is characterized by beds dipping gently to the northeast. An east-west fault graben complex interrupts this basic trend in the center of the area. The target coal bed of the UCG experiments was the … more
Date: January 1, 1984
Creator: Oliver, R.L. & Youngberg, A.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Workshop on core and sample curation for the National Continental Scientific Drilling Program

Description: The Workshop on Core and Sample Curation was held to discuss the best means of handling, distributing, and advertising samples and data collected during a Continental Scientific Drilling Program (CSDP) and to establish better communication between sample curators regarding common problems. It was geneerally agreed that CSDP samples should be handled, on a regional basis, by existing data systems and sample repositories judged to have adequate staff and support. Repository design, sample handlin… more
Date: May 6, 1981
Creator: Goff, S. & Heiken, G. (eds.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Geological and geochemical aspects of uranium deposits. A selected, annotated bibliography

Description: 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… more
Date: June 1, 1980
Creator: Garland, P. A.; Thomas, J. M.; Brock, M. L. & Daniel, E. W. (comps.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Inorganic contents of peats

Description: Peat, the precursor of coal, is composed primarily of plant components and secondarily of inorganic matter derived from a variety of sources. The elemental, mineralogic, and petrographic composition of a peat is controlled by a combination of both its botanical and depositional environment. Inorganic contents of peats can vary greatly between geographically separated peat bogs as well as vertially and horizontally within an individual bog. Predicting the form and distribution of inorganic matte… more
Date: February 1, 1988
Creator: Raymond, R. Jr.; Bish, D.L. & Cohen, A.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Petrology, geochronology, and chemical evolution of the Twin Peaks Rhyolite Domes, Utah

Description: Two distinct sequences of silicic volcanism at the Twin Peaks volcanic field, Millard County, Utah, spanned periods from 2.74 +- .10 to 2.54 +- .09 m.y. and 2.43 +- .08 to 2.35 +- .08 m.y., and produced a total exposed volume of 4 km/sup 3/ of rhyolites and volcanoclastics. Wet chemical, x-ray fluorescence, microprobe, atomic absorption, and neutron activation methods have been employed to obtain a wide range of chemical data on whole rock and mineral separate samples. Calculated distribution c… more
Date: May 1, 1980
Creator: Crecraft, H. R.; Nash, W. P. & Evans, S. H., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of geothermal potential in the Waianae Caldera Area, Western Oahu, Hawaii. Assessment of Geothermal Resources in Hawaii: Number 2

Description: Studies of Lualualei Valley, Oahu have been conducted to determine whether a thermal anomaly exists in the area and, if so, to identify sites at which subsurface techniques should be utilized to characterize the resource. Geologic mapping identifies several caldera and rift zone structures in the Valley and provides a tentative outline of their boundaries. Clay mineralogy studies indicate that minor geothermal alteration of near-surface rocks has occurred at some period in the history of the ar… more
Date: September 1, 1979
Creator: Cox, M. E.; Sinton, J. M.; Thomas, D. M.; Mattice, M. D.; Kauahikaua, J. P.; Helstern, D. M. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of the Occurrence of Gold in an Unoxidized Carlin-Type Ore Sample Using Synchrotron Radiation

Description: The occurrence of the so-called invisible gold in two unoxidized Carlin-type gold samples from Nevada have been determined using synchrotron x-ray fluorescence (SXRF) analysis at the National Sychrotron Light Source, Brookhaven National Laboratory. The samples were a bedded sample from the east ore zone of the Carlin deposit and a breccia sample from Horse Canyon. Preliminary results show that gold is found only in the Horse Canyon breccia sample. Experimental details including other x-ray line… more
Date: January 1, 1986
Creator: Chen, J. R.; Chao, E. C. T.; Minkin, J. A.; Back, J. M.; Bagby, W. C.; Rivers, M. L. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Some chemical and mineralogical considerations important for understanding leachate chemistry

Description: Both the raw shale material and the retorting process parameters are influential in determining the subsequent behavior of the spent shale solids with respect to leaching and/or environmental weathering. The process parameters define the mineral reactions that occur to form the mineral assemblage in the spent shale, while the major and trace element residences and mobilities from the raw shale determine the extent of incorporation of these elements in the spent shale matrix and ultimately the c… more
Date: January 1, 1982
Creator: Peterson, E. J. & Wagner, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Chemistry and mineralogy of samples from the strategic petroleum reserve Bryan Mound site

Description: The goal of the Strategic Petroleum Reserve (SPR) program is to protect the United States from a temporary cutoff of imported crude oil by stockpiling a reserve of oil in caverns in Gulf Coast salt domes. Some suitable caverns already exist as a result of solution mining activities by commercial mining companies. Most of the caverns for the program, however, will be solution mined specifically for the SPR program. The tasks assigned to Sandia National Laboratories include conducting a geotechni… more
Date: August 1, 1980
Creator: Bild, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Factors controlling reservoir quality in tertiary sandstones and their significance to geopressured geothermal production

Description: Variable intensity of diagenesis is the factor primarily responsible for contrasting regional reservoir quality of Tertiary sandstones from the upper and lower Texas coast. Detailed comparison of Frio sandstone from the Chocolate Bayou/Danbury Dome area, Brazoria County, and Vicksburg sandstones from the McAllen Ranch Field area, Hidalgo County, reveals that extent of diagenetic modification is most strongly influenced by (1) detrital mineralogy and (2) regional geothermal gradients. The region… more
Date: January 1, 1981
Creator: Loucks, R. G.; Richmann, D. L. & Milliken, K. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation and targeting of geothermal energy resources in the southeastern United States. Progress report, April 1, 1977--June 30, 1977

Description: Progress is reported in the detailed study of the Winnsboro complex, South Carolina, as part of a broader project to provide insight into the behavior of uranium and thorium in syn- and post-metamorphic granitic plutons. In the area of the Winnsboro complex, a regional medium-pressure metamorphic event which reached amphibolite facies was followed by deformation and uplift with decrease in regional temperature and pressure. The Winnsboro complex was intruded with a resultant low-pressure contac… more
Date: October 1, 1977
Creator: Costain, John K.; Glover, Lynn, III & Sinha, A. Krishna
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Clay mineralogy and depositional history of the Frio Formation in two geopressured wells, Brazoria County, Texas

Description: Twenty-three shale samples ranging in depth from 5194 ft to 13,246 ft from Gulf Oil Corporation No. 2 Texas State Lease 53034 well and 33 shale samples ranging in depth from 2185 ft to 15,592 ft from General Crude Oil Company/Department of Energy No. 1 Pleasant Bayou well were examined by x-ray techniques to determine the mineralogy of the geopressured zone in the Brazoria Fairway. Both wells have similar weight-percent trends with depth for a portion of the mineralogy. Calcite decreases, and p… more
Date: January 1, 1982
Creator: Freed, R.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Multielement geochemistry of solid materials in geothermal systems and its applications. Part 1. Hot-water system at the Roosevelt Hot Springs KGRA, Utah

Description: Geochemical studies of the geothermal system at Roosevelt Hot Springs, Utah, have led to development of chemical criteria for recognition of major features of the system and to a three-dimensional model for chemical zoning in the system. Based on this improved level of understanding several new or modified geochemical exploration and assessment techniques have been defined and are probably broadly applicable to evaluation of hot-water geothermal systems. The main purpose of this work was the de… more
Date: February 1, 1980
Creator: Bamford, R. W.; Christensen, O. D. & Capuano, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Influence of chemical characterization of oil shale solids on understanding water quality impacts

Description: Synfuels technologies will yield products and effluents that are a function of the raw material being processed and the process variables. Chemical and mineralogic characterization of solids generated in synfuels production provide valuable insight into health and environmental impacts associated with synfuels processing (coal liquefaction or gasification and shale oil extraction). This report deals with considerations relating to leachate generation from solid wastes, but the suggested researc… more
Date: January 1, 1981
Creator: Peterson, E. J. & Wagner, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Characterization of Vadose Zone Sediments Below the TX Tank Farm: Boreholes C3830, C3831, C3832 and RCRA Borehole 299-W10-27

Description: This report was revised in September 2008 to remove acid-extractable sodium data from Tables 4.8, 4.28,4.43, and 4.59. The sodium data was removed due to potential contamination introduced during the acid extraction process. The rest of the text remains unchanged from the original report issued in April 2004. The overall goal of the Tank Farm Vadose Zone Project, led by CH2M HILL Hanford Group, Inc., is to define risks from past and future single-shell tank farm activities at Hanford. To meet t… more
Date: September 11, 2008
Creator: Serne, R. Jeffrey; Bjornstad, Bruce N.; Horton, Duane G.; Lanigan, David C.; Lindenmeier, Clark W.; Lindberg, Michael J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Characterization of Vadose Zone Sediment: Borehole 41-09-39 in the S-SX Waste Management Area

Description: This report was revised in September 2008 to remove acid-extractable sodium data from Table 5.15. The sodium data was removed due to potential contamination introduced during the acid extraction process. The rest of the text remains unchanged from the original report issued in February 2002. The overall goal of the of the Tank Farm Vadose Zone Project, led by CH2M HILL Hanford Group, Inc., is to define risks from past and future single-shell tank farm activities. To meet this goal, CH2M HILL Ha… more
Date: September 11, 2008
Creator: Serne, R. Jeffrey; Last, George V.; Schaef, Herbert T.; Lanigan, David C.; Lindenmeier, Clark W.; Ainsworth, Calvin C. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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