Gravity survey of Dixie Valley, west-central Nevada
Open-File Report
82-111
By: Donald H. Schaefer
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Abstract
Dixie Valley, a northeast-trending structural trough typical of valleys in the Basin and Range Province, is filled with a maximum of about 10,000 feet of alluvial and lacustrine deposits , as estimated from residual-gravity measurements obtained in this study. On the basis of gravity measurements at 300 stations on nine east-west profiles, the gravity residuals reach a maximum of 30 milligals near the south-central part of the valley. Results from a three-dimensional inversion model indicate that the central depression of the valley is offset to the west of the geographic axis. This offset is probably due to major faulting along the west side of the valley adjacent to the Stillwater Range. Comparison of depths to bedrock obtained during this study and depths obtained from a previous seismic-refraction study indicates a reasonably good correlation. A heterogeneous distribution of densities within the valley-fill deposits would account for differing depths determined by the two methods. (USGS)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Gravity survey of Dixie Valley, west-central Nevada |
| Series title | Open-File Report |
| Series number | 82-111 |
| DOI | 10.3133/ofr82111 |
| Edition | - |
| Year Published | 1983 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | v, 22 p. :maps ;28 cm. |
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