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Evidence for an unsaturated-zone origin of secondary minerals in Yucca Mountain, Nevada

Description: The unsaturated zone (UZ) in Miocene-age welded tuffs at Yucca Mountain, Nevada, is under consideration as a potential site for the construction of a high-level radioactive waste repository. Secondary calcite and silica minerals deposited on fractures and in cavities in the UZ tuffs are texturally, isotopically, and geochemically consistent with UZ deposition from meteoric water infiltrating at the surface and percolating through the UZ along fractures. Nonetheless, two-phase fluid inclusions w… more
Date: April 29, 2001
Creator: Whelan, Joseph F.; Roedder, Edwin & Paces, James B.
Partner: UNT Libraries Government Documents Department
open access

Anisotropy of mechanical properties of tuff at Yucca Mountain

Description: The purpose of this study is to investigate anisotropy of mechanical properties, namely, compressive strength and modulus, for Tiva Canyon welded tuff from the starter tunnel at Yucca Mountain. Mechanical properties of Tiva Canyon Tuff are needed for the design of the ramps and drifts within the Tiva Canyon horizon. Approximately one cubic foot block samples, all of which were from the thermo -- mechanical unit TCw, were obtained from a muck pile containing excavated rock from the starter tunne… more
Date: June 1, 1995
Creator: Karakouzian, M. & Hudyma, N.
Partner: UNT Libraries Government Documents Department
open access

Hydrologic characteristics of faults at Yucca Mountain, Nevada

Description: Yucca Mountain is under study as a potential site for underground storage of high-level radioactive waste, with the principle goal being the safe isolation of the waste from the accessible environment. This paper addresses the hydrogeologic characteristics of the fault zones at Yucca Mountain, focusing primarily on the central part of the mountain where the potential repository block is located.
Date: April 29, 2001
Creator: Dickerson, Robert P.
Partner: UNT Libraries Government Documents Department
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