Actions for Geophysical interpretations west of and within the northwestern part of the Nevada Test Site [electronic resource].

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Geophysical interpretations west of and within the northwestern part of the Nevada Test Site [electronic resource].

Published
Washington, D.C. : United States. Dept. of the Interior, 1997.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
57 pages : digital, PDF file
Additional Creators
United States. Department of the Interior and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
This report focuses on interpretation of gravity and new magnetic data west of the Nevada Test Site (NTS) and within the northwestern part of NTS. The interpretations integrate the gravity and magnetic data with other geophysical, geological, and rock property data to put constraints on tectonic and magmatic features not exposed at the surface. West of NTS, where drill hole information is absent, these geophysical data provide the best available information on the subsurface. Interpreted subsurface features include calderas, intrusions, basalt flows and volcanoes, Tertiary basins, structurally high pre-Tertiary rocks, and fault zones. New features revealed by this study include (1) a north-south buried tectonic fault east of Oasis Mountain, which the authors call the Hogback fault; (2) an east striking fault or accommodation zone along the south side of Oasis Valley basin, which they call the Hot Springs fault; (3) a NNE striking structural zone coinciding with the western margins of the caldera complexes; (4) regional magnetic highs that probably represent a thick sequence of Tertiary volcanic rocks; and (5) two probable buried calderas that may be related to the tuffs of Tolicha Peak and of Sleeping Butte, respectively.
Report Numbers
E 1.99:usgs/ofr--97-476
usgs/ofr--97-476
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
12/31/1997.
"usgs/ofr--97-476"
"DE98003404"
"EW2010102"
Sawyer, D.A.; Hudson, M.R.; Fridrich, C.J.; Grauch, V.J.
Geological Survey, Denver, CO (United States)
Funding Information
AI08-96NV11967
View MARC record | catkey: 14139980