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Tectonic Versus Volcanic Origin of the Summit Depression at Medicine Lake Volcano, California

Description: Medicine Lake Volcano is a Quaternary shield volcano located in a tectonically complex and active zone at the transition between the Basin and Range Province and the Cascade Range of the Pacific Province. The volcano is topped by a 7x12 km elliptical depression surrounded by a discontinuous constructional ring of basaltic to rhyolitic lava flows. This thesis explores the possibility that the depression may have formed due to regional extension (rift basin) or dextral shear (pull-apart basin) ra… more
Date: May 1, 2010
Creator: Gwynn, Mark Leon
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Used fuel disposition research and development roadmap - FY10 status.

Description: Since 1987 the U.S. has focused research and development activities relevant to the disposal of commercial used nuclear fuel and U.S. Department of Energy (DOE) owned spent nuclear fuel and high level waste on the proposed repository at Yucca Mountain, Nevada. At the same time, the U.S. successfully deployed a deep geologic disposal facility for defense-related transuranic waste in bedded salt at the Waste Isolation Pilot Plant. In 2009 the DOE established the Used Fuel Disposition Campaign (UF… more
Date: October 1, 2010
Creator: Nutt, W. M. (Nuclear Engineering Division)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pre-Shot Simulations of Far-Field Ground Motions for the Source Physics Experiment (SPE) Explosions at the Climax Stock, Nevada National Security Site

Description: The Source Physics Experiment (SPE) will involve a series of explosions in various geologic and emplacement conditions to validate numerical simulation methods to predict behavior of seismic wave excitation and propagation for nuclear test monitoring. The first SPE's currently underway involve explosions in the Climax Stock (granitic geology) at the Nevada National Security Site (NNSS). Detailed geologic data and published material properties for the major lithologic units of the NNSS and surro… more
Date: November 7, 2010
Creator: Rodgers, A J; Wagoner, J; Petersson, N A & Sjogreen, B
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary studies of tunnel interface response modeling using test data from underground storage facilities.

Description: In attempting to detect and map out underground facilities, whether they be large-scale hardened deeply-buried targets (HDBT's) or small-scale tunnels for clandestine border or perimeter crossing, seismic imaging using reflections from the tunnel interface has been seen as one of the better ways to both detect and delineate tunnels from the surface. The large seismic impedance contrast at the tunnel/rock boundary should provide a strong, distinguishable seismic response, but in practice, such s… more
Date: November 1, 2010
Creator: Sobolik, Steven Ronald & Bartel, Lewis Clark
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Long-term desorption behavior of uranium and neptunium in heterogeneous volcanic tuff materials /

Description: Uranium and neptunium desorption were studied in long-term laboratory experiments using four well-characterized volcanic tuff cores collected from southeast of Yucca Mountain, Nevada. The objectives of the experiments were to 1. Demonstrate a methodology aimed at characterizing distributions of sorption parameters (attributes of multiple sorption sites) that can be applied to moderately-sorbing species in heterogeneous systems to provide more realistic reactive transport parameters and a … more
Date: May 1, 2010
Creator: Dean, Cynthia A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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