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Calculation of Permeability Change Due to Coupled Thermal-Hydrological-Mechanical Effects

Description: The purpose of this calculation is to provide a bounding estimate of how thermal-hydrological-mechanical (THM) behavior of rock in the region surrounding an emplacement drift in a Monitored Geologic Repository subsurface facility may affect the permeability of fractures in the rock mass forming the region. The bounding estimate will provide essential input to performance assessment analysis of the potential repository system. This calculation also supports the Near Field Environment Process Mod… more
Date: June 28, 2000
Creator: Blair, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Simulation of water-rock interaction in the yellowstone geothermal system using TOUGHREACT

Description: The Yellowstone geothermal system provides an ideal opportunity to test the ability of reactive transport models to accurately simulate water-rock interaction. Previous studies of the Yellowstone geothermal system have characterized water-rock interaction through analysis of rocks and fluids obtained from both surface and downhole samples. Fluid chemistry, rock mineralogy, permeability, porosity, and thermal data obtained from the Y-8 borehole in Upper Geyser Basin were used to constrain a seri… more
Date: April 28, 2003
Creator: Dobson, P. F.; Salah, S.; Spycher, N. & Sonnenthal, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Fracture characterization of the large-block test, Fran Ridge, Yucca Mountain, Nevada

Description: The US Department of Energy (DOE) is investigating the suitability of Yucca Mountain as a potential site for the nation's first high-level nuclear waste repository. The site is located about 120 km northwest of Las Vegas, Nevada, at the Nevada Test Site. Favorable aspects of Yucca Mountain as a potential repository site include its arid nature and the sorptive properties of the rock materials. The arid environment results in unsaturated conditions at the potential emplacement horizon, which is … more
Date: April 28, 1999
Creator: Wagoner, J.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Geologic Studies of Underground Nuclear Explosions Rainier and Neptune. Final Report

Description: The approximate physical distribution and condition of displaced and ruptured rock materials in the Rainier and Neptune areas were established by geologic observation of structural and lithologic details, and stratigraphic correlations. The effects of the detonations were found to be related to the rock types considered from the standpoint of engineering materials as well as to their structural positioning. Gross displacements and fracturing are in apparent accord with Mohr theory of rupture st… more
Date: October 28, 1959
Creator: Thompson, T. L. & Misz, J. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of a Composite Non-Electrostatic Surface Complexation Model Describing Plutonium Sorption to Aluminosilicates

Description: Due to their ubiquity in nature and chemical reactivity, aluminosilicate minerals play an important role in retarding actinide subsurface migration. However, very few studies have examined Pu interaction with clay minerals in sufficient detail to produce a credible mechanistic model of its behavior. In this work, Pu(IV) and Pu(V) interactions with silica, gibbsite (Aloxide), and Na-montmorillonite (smectite clay) were examined as a function of time and pH. Sorption of Pu(IV) and Pu(V) to gibbsi… more
Date: October 28, 2008
Creator: Powell, B. A.; Kersting, A.; Zavarin, M. & Zhao, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Simulation of water-rock interaction in the Yellowstone geothermal system using TOUGHREACT

Description: The Yellowstone geothermal system provides an ideal opportunity to test the ability of reactive transport models to simulate the chemical and hydrological effects of water-rock interaction. Previous studies of the Yellowstone geothermal system have characterized water-rock interaction through analysis of rocks and fluids obtained from both surface and downhole samples. Fluid chemistry, rock mineralogy, permeability, porosity, and thermal data obtained from the Y-8 borehole in Upper Geyser Basin… more
Date: April 28, 2003
Creator: Dobson, Patrick F.; Salah, Sonia; Spycher, Nicolas & Sonnenthal, Eric L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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