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Correlation of alluvial deposits at the Nevada Test Site

Description: Because characteristics of rock layers and problems in drilling must be studied before radioactive waste can be safely contained, an evaluation was made of methods for correlating alluvial deposits at Yucca Flat of the Nevada Test Site (NTS). Although correlation of Tertiary volcanic tuff beds at the NTS has been successfully achieved, correlation of stratigraphic zones in the overlying alluvium has posed technical difficulties. We have evaluated several methods for correlating alluvial deposit… more
Date: September 30, 1977
Creator: Grothaus, B. & Howard, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Studies of nuclear-waste migration in geologic media. Annual report, November 1976--October 1977

Description: The confinement of nuclear wastes in geologic formations is being considered as a method of permanently disposing of the waste. Laboratory experiments (column infiltration, static absorption, and batch partitioning experiments) were performed with nuclides of Cs, Pu, Np, and Am to examine the migratory characteristics of long-lived radionuclides that could be mobilized by groundwaters infiltrating a nuclear waste repository and the surrounding geologic body. In column infiltration experiments, … more
Date: March 1, 1978
Creator: Seitz, M.G.; Rickert, P.G.; Fried, S.M.; Friedman, A.M. & Steindler, M.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiochemical analyses of samples from beneath a solid radioactive waste disposal pit at Los Alamos, New Mexico

Description: Solid radioactive wastes are disposed of by burial in pits excavated in rhyolite tuff at the Los Alamos Scientific Laboratory (LASL). Contaminants in the waste include fission products, uranium, and transuranic elements. In 1976, horizontal core holes were drilled beneath a waste disposal pit that was used from 1963 to 1966. Samples of the core were analyzed for gross alpha, gross beta, total uranium, /sup 90/Sr, /sup 137/Cs, /sup 238/Pu, /sup 239/ /sup 240/Pu, and /sup 241/Am. The measured gro… more
Date: June 1, 1980
Creator: Purtymun, W. D.; Rogers, M. A. & Wheeler, M. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Report on geologic exploration activities

Description: This report provides an overview of the geological exploration activities being carried out as part of the National Waste Terminal Storage (NWTS) Program, which has been established by the US Department of Energy (DOE) to develop the technology and provide the facilities for the safe, environmentally acceptable isolation of civilian high-level and transuranic nuclear wastes, including spent fuel elements, for which the Federal government is reponsible. The principal programmatic emphasis is on … more
Date: January 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Energy related studies utilizing microcline thermochronology: Progress report, May 1, 1987-April 30, 1988

Description: Rock samples from the Salton Sea Geothermal Field (sandstone, tuff, granite) and from accretionary prism sediments along the convergent margins in southeast Alaska and southwest Japan have been dated by the /sup 40/Ar/sup 39/Ar method. Paleotemperatures have been calculated. (ACR
Date: April 30, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear waste-form risk assessment for US Defense waste at Savannah River Plant. Annual report FY 1981

Description: Savannah River Plant has been supporting the Lawrence Livermore National Laboratory in its present effort to perform risk assessments of alternative waste forms for defense waste. This effort relates to choosing a suitable combination of solid form and geologic medium on the basis of risk of exposure to future generations; therefore, the focus is on post-closure considerations of deep geologic repositories. The waste forms being investigated include borosilicate glass, SYNROC, and others. Geolo… more
Date: December 1, 1981
Creator: Cheung, H.; Edwards, L. L.; Harvey, T. F.; Jackson, D. D. & Revelli, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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RECONNAISSANCE FOR URANIUM IN THE CUZCO-AYAVIRI REGION, SOUTHERN PERU

Description: Geologic and radiometric investigations of the CuzcoAyaviri region in southern Peru were made in a search for geologic features or structures which might be favorable for the occurrence of uranium. Outcrops consist of Lower Paleozoic sedimentary and metamorphic rocks; Permian to Carboniferous volcanic flows, tuffs, breccia and agglomerate, together with sedimentary rocks; and Cretaceous and sedimentary rocks. Cretaceous to Tertiary igneous rocks are acidic intrusives and extrusive rhyolite, dac… more
Date: October 1, 1957
Creator: Brown, L.J. & Francisco, C.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experiments to determine the migration potential for water and contaminants in shallow land-burial facilities: design, emplacement, and preliminary results

Description: Although there have been many laboratory studies on water movement and contaminant transport, there is a need for more large scale field experiments. Large scale field experiments are necessary to (1) measure hydraulic conductivities on a scale typical of actual shallow land burial facilities and hazardous waste disposal facilities, (2) allow comparisons to be made between full scale and laboratory measurements, (3) verify the applicability of calculational methods for determining unsaturated h… more
Date: January 1, 1982
Creator: DePoorter, G. L.; Abeele, W. V. & Burton, B. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Field studies and modeling of chemical processes in the unsaturated zone

Description: Technical assistance is being provided to Nuclear Materials Safety and Safeguards of the Nuclear Regulatory Commission to evaluate the validity of several guidelines listed in 10 CFR Part 61 for the future burial of low-level radioactive waste. Those guidelines include the requirement that the burial site shall be capable of being modeled. Both laboratory- and field-scale studies are being conducted under unsaturated moisture conditions and under steady-state and unsteady-state flow conditions.… more
Date: January 1, 1985
Creator: Polzer, W.L. & Fuentes, H.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Computerized tomographic analysis of fluid flow in fractured tuff

Description: The purpose of this summary is to demonstrate the usefulness of X-ray computerized tomography to observe fluid flow down a fracture and rock matrix imbibition in a sample of Bandelier tuff. This was accomplished by using a tuff sample 152.4 mm long and 50.8 mm in diameter. A longitudinal fracture was created by cutting the core with a wire saw. The fractured piece was then coupled to its adjacent section to that the fracture was not expected. Water was injected into a dry sample at five flow ra… more
Date: January 1, 1992
Creator: Felice, C. W.; Sharer, J. C. (Terra Tek, Inc., Salt Lake City, UT (United States)) & Springer, E. P. (Los Alamos National Lab., NM (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Survey of existing underground openings for in-situ experimental facilities

Description: In an earlier project, a literature search identified 60 underground openings in crystalline rock capable of providing access for an in-situ experimental facility to develop geochemical and hydrological techniques for evaluating sites for radioactive waste isolation. As part of the current project, discussions with state geologists, owners, and operators narrowed the original group to 14. Three additional sites in volcanic rock and one site in granite were also identified. Site visits and appli… more
Date: July 1, 1981
Creator: Wollenberg, H.; Graf, A.; Strisower, B. & Korbin, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology of the Cove Fort-Sulphurdale KGRA

Description: The Cove Fort-Sulphurdale Known Geothermal Resource Area (KGRA) is located on the northwestern margin of the Marysvale volcanic field in southwestern Utah. The geology of the KGRA is dominated by lava flows and ash-flow tuffs of late Oligocene to mid-Miocene age that were deposited on faulted sedimentary rocks of Paleozoic to Mesozoic age. The geothermal system of the Cove Fort-Sulphurdale KGRA is structurally controlled by normal faults. High-angle faults control fluid flow within the geotherm… more
Date: May 1, 1979
Creator: Moore, J. N. & Samberg, S. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Uranium potential of southwestern New Mexico (southern Hidalgo County), including observations on crystallization history of lavas and ash tuffs and the release of uranium from them. Final report

Description: Geological environments present in southwestern New Mexico include thick sequences of sedimentary rock including limestone, conglomerates, sandstone, and shale: igneous intrusions with associated metal deposits; caldera centers, margins, and outflow facies; and basins with marginal faults and thick late Cenozoic sedimentary fillings. Predominant rock types are Paleozoic carbonates, Mesozoic terrigeneous rocks and carbonates, and Cenozoic volcanic rocks and basin-filling terrigeneous rocks. Cons… more
Date: August 1, 1980
Creator: Walton, A.W.; Salter, T.L. & Zetterlund, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Technical approach to resolving issues on rock mechanics as applied to development of a nuclear waste repository in a crystalline rock formation

Description: This paper summarizes the technical efforts for resolving issues on rock mechanics as applied to development of a nuclear waste repository in a crystalline rock formation. This section provides background information and definitions pertinent to rock mechanics. Section 2.0 presents the rock mechanics issues related to licensing, design, and construction of a waste repository. Section 3.0 presents the technical approach to the resolution of issues and concludes that a multi-faceted approach invo… more
Date: March 1, 1980
Creator: Case, J.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Disposal of liquid radioactive wastes through wells or shafts

Description: This report describes disposal of liquids and, in some cases, suitable solids and/or entrapped gases, through: (1) well injection into deep permeable strata, bounded by impermeable layers; (2) grout injection into an impermeable host rock, forming fractures in which the waste solidifies; and (3) slurrying into excavated subsurface cavities. Radioactive materials are presently being disposed of worldwide using all three techniques. However, it would appear that if the techniques were verified as… more
Date: January 1, 1982
Creator: Perkins, B.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology of the Platanares Geothermal Site, Departamento De Copan, Honduras, Central America. Field Report

Description: Platanares is located 16 km west of Santa Rosa de Copan, Honduras, along the Quebrada del Agua Caliente. The thermal manifestations are along faults in tuffs, tuffaceous sedimentary rocks, and lavas of the Padre Miguel Group. These tuffs are silicified near the faults, are fractured, and may provide the fracture permeability necessary for the hydrothermal system. Tuffs are overlain by a wedge of terrace gravels up to 60 m thick. Quaternary conglomerates of the Quebrada del Agua Caliente are cem… more
Date: May 1, 1986
Creator: Heiken, G.; Eppler, D.; Wohletz, K.; Flores, W.; Ramos, N. & Ritchie, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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PUFF TOO: a residual stress experiment

Description: Following the passage of the dynamic effects in a contained explosive detonation, there remains a strong compressive stress field in the material about the cavity. In this experiment, a 454-kg (1000 lb) sphere of high explosive was detonated in saturated ashfall tuff. Instrumentation measured peak stresses over the range of 0.1 to 6.0 GPa (1 to 6 kbar) and the complete stress-time waveform, including the so-called residual stress, at the 0.1 GPa (1 kbar) peak stress range. Mineback revealed det… more
Date: April 1, 1980
Creator: Smith, C.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemical durability of glass containing SRP waste: leachability characteristics, protective layer formation, and repository system interactions

Description: The Repository Systems Program at Savannah River consists of the following elements: (a) static repository tests, (b) slow flow groundwater tests, (c) dynamic leaching experiments, (d) long term leaching tests, and (e) in situ experiments. The scouting tests performed in the static repository program are summarized and a new dynamic leaching concept is introduced in this paper. Abbreviated MCC-1 static leaching tests were used in this static repository program. The tests were conducted at 90/su… more
Date: January 1, 1982
Creator: Wicks, G G; Robnett, B M & Rankin, W D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Analysis of the cost of mined geologic repositories in alternative media

Description: IN 1981, the Pacific Northwest Laboratory (PNL) conducted an analysis of the costs of using salt, granite, basalt or tuff to isolate spent nuclear fuel. Preliminary cost estimates were made and the conditions affecting cost in each medium were examined parametrically. The analysis was conducted using a repository cost model named RECON, created for this project. Data for the model were gathered from recent conceptual design studies completed and under way, from the Generic Environmental Impact … more
Date: February 1, 1982
Creator: Clark, L. L. & Cole, B. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wireline sidewall coring

Description: In April 1989, Schlumberger Well Services, under contract to Fenix and Scisson of Nevada, Inc., ran a wireline sidewall coring machine in exploratory hole Ue4t at the Nevada Test Site for the Los Alamos National Laboratory. The sampling project goals were to recover material for geologic characterization and to determine the effectiveness of the tool for sampling various volcanic lithologies. If a wireline tool is found to be effective, fewer expensive continuously-cored holes will be needed. T… more
Date: January 1, 1989
Creator: Hawkins, W.L.; Mathews, M.A. (Los Alamos National Lab., NM (USA)); Thompson, P.H. (Fenix and Scisson, Inc., Mercury, NV (USA)) & Jenkins, K. (Schlumberger Well Services, Casper, WY (USA))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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High energy gas fracture experiments in liquid-filled boreholes: potential geothermal application

Description: High Energy Gas Fracturing is a tailored pulse fracturing technique which uses propellants to obtain controlled fracture initiation and extension. Borehole pressurization rates can be tailored, by suitable choice of propellants, to produce four or eight fractures radiating from the wellbore. High Energy Gas Fracture (HEGF) research is conducted at DOE's Nevada Test Site (NTS) in a tunnel complex where experiments can be done under realistic in situ stress conditions (1400 psi (9.7 MPa) overburd… more
Date: July 1, 1986
Creator: Cuderman, J.F.; Chu, T.Y.; Jung, J. & Jacobson, R.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Laboratory studies of radionuclide distributions between selected groundwaters and geologic media. Annual report, October 1, 1978-September 30, 1979

Description: Extensive studies of the behavior of plutonium and americium in pH approx. = 8 groundwaters were made, particularly with respect to container sorption, filtering, and centrifugation. Significant improvements in the method used for measuring sorption ratios for these elements were developed, and their sorption-desorption ratios on argillite and tuff were measured. Effects of particle size, temperature, sampling location, mineralogy, and time were investigated for these elements. The chemical com… more
Date: February 1, 1980
Creator: Erdal, B.R. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High-energy gas fracturing in cased and perforated wellbores

Description: A propellant-based technology, High-Energy Gas Fracturing (HEGF), has been applied to fracturing through perforations in cased boreholes. HEGF is a tailored-pulse fracturing technique originally developed by Sandia National Laboratories for application in uncased, liquid-free gas wells in Appalachian Devonian shales. Because most oil and gas wells are liquid filled as well as cased and perforated, the potential impact of present research is significantly broader. A number of commercial tailored… more
Date: June 1, 1986
Creator: Cuderman, J.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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