USGS Geoscience Data Catalog
Additional USGS Geoscience data can be found by geographic location or by publication series.
Blakely, R.J., and Ponce, D.A., 2001, Map Showing Depth to Pre-Cenozoic Basement in the Death Valley Ground-Water Model Area, Nevada and California: U.S. Geological Survey Miscellaneous Field Studies Map MF-2381-E, U.S. Geological Survey, Denver, Colorado.Online Links:
This is a point data set.
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.00001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in Decimal Degrees.
The horizontal datum used is North American Datum of 1927.
The ellipsoid used is CLARKE 1866.
The semi-major axis of the ellipsoid used is 6378206.4.
The flattening of the ellipsoid used is 1/294.98.
303-236-1257 (voice)
jworkman@usgs.gov
This dataset was completed in support of the Death Valley Ground-Water Basin regional flow model funded by the U.S. Department of Energy in conjunction with the U. S. Geological Survey and U.S. National Park Service. The proposed model is intended to address issues concerning the availability of water in Death Valley National Park and surrounding counties of Nevada and California and the migration of contaminants off of the Nevada Test Site and Yucca Mountain high-level waste repository.
Blakely, R.J., Langenheim, V.E., and Ponce, D.A., 2000, Summary of geophysical investigations of the Death Valley regional water-flow modeling project, Nevada and California: U.S. Geological Survey Open-File Report 00-189, U.S. Geological Survey, Denver, CO.
Mankinen, E.A., Hildenbrand, T.G., Roberts, C.W., and Davidson, J.G., 1998, Principal facts for new gravity stations in the Pahute Mesa and Oasis Valley areas, Nevada: U.S. Geological Survey Open-File Report 98-498, U.S. Geological Survey, Denver, CO.
Morin, R.L., and Blakely, R.J., 1999, Principal facts for about 500 gravity stations in the vicinity of Amargosa Desert and Pahrump Valley, California and Nevada: U.S. Geological Survey Open-File Report 99-31, U.S. Geological Survey, Denver, CO.
Ponce, D.A., 1997, Gravity data of Nevada: U.S. Geological Survey Digital Data Series DDS-42, U.S. Geological Survey, Denver, CO.
Ponce, D.A., Blakely, R.J., Morin, R.L., and Mankinen, E.A., 2001, Isostatic Gravity Map of the Death Valley Ground-Water Model Area, Nevada and California: U.S. Geological Survey Miscellaneous Field Studies Map MF-2381-C, U.S. Geological Survey, Denver, Colorado.Online Links:
Ponce, D.A., and Blakely, R.J., 2001, Aeromagnetic Map of the Death Valley Ground-Water Model Area, Nevada and California: U.S. Geological Survey Miscellaneous Field Studies Map MF-2381-D, U.S. Geological Survey, Denver, Colorado.Online Links:
Depths to basement are accurate to about 0.5 km.
Accuracy of the data is about 18 m.
This map was produced to be used at a map scale of 1:250,000.
Depths were visually checked and reviewed at a scale of 1:250,000.
Are there legal restrictions on access or use of the data?
- Access_Constraints: none
- Use_Constraints: none
303-236-5486 (voice)
Although this digital spatial data has been subjected to rigorous review and is substantially complete, it is released on the condition that neither the USGS nor the United States Government may be held liable for any damage resulting from its authorized or unauthorized use.
Data format: | ASCII |
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Network links: |
<http://geology.cr.usgs.gov/pub/mf-maps/mf-2381/> |
1-888-ASK-USGS (voice)
MF-2381-E (Map-on-Demand)
None
Available as one printed sheet with a pamphlet. Order from USGS at the address listed above or see <http://rmmcweb.cr.usgs.gov/public/mod/order.html> for more ordering information.
for current prices please see <http://rmmcweb.cr.usgs.gov/public/mod/order.html>
303-236-1257 (voice)
jworkman@usgs.gov