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GMEG - Geophysics Unit of Menlo Park, CA- (GUMP)


Geophysics Unit of Menlo Park, CA (GUMP)

U.S. Geological Survey - Western Region - Geology and Geophysics

Watt Main



Geophysical Investigations of the Basin and Range Carbonate-Rock Aquifer System (BARCAS)


Photo of Wheeler Peak in Great Basin National Park, Nevada

Geophysical investigations were undertaken in east-central Nevada and west-central Utah as part of a larger effort to conduct a water-resources study of the basin-fill and carbonate-rock aquifers as mandated by the Lincoln County Conservation, Recreation, and Development Act of 2004. We combined new gravity data with existing aeromagnetic, drill-hole, and geologic data to help determine basin geometry, infer structural features, estimate depth to pre-Cenozoic basement rocks, and further constrain the horizontal extents of exposed and buried plutons.

For additional information see the following publications:

For additional information contact:
          Janet Watt   MS 989
          U.S. Geological Survey
          345 Middlefield Rd.,
          Menlo Park, CA 94025

David A. Ponce   MS 989
U.S. Geological Survey
345 Middlefield Rd.,
Menlo Park, CA 94025


USGS Nevada Science Center
Nevada Division of Water Resources

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