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In Stock
Your Price: $6.00
Model
Number: 998
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by S.S. Johnson, D.A. Hubbard, Jr., and T.H. Biggs, 27 pages, 2 maps, 1 figure, 1977. The area of this gravity report consists of approximately 5,300 square miles in Virginia, bounded by 81 degrees west longitude on the east and the Virginia state line on the north, west, and south. This area includes all or part of 13 counties located in the Appalachian Plateaus, Valley and Ridge, and Blue Ridge physiographic provinces. Gravity methods are used predominantly in regional surveys to help determine the location of anomalous areas that may be further investigated by geological and other geophysical techniques. Correlation was found to exist between the gravity and magnetic fields. From the gravity data, it seems that there is overall fairly deep basement with a gradual deepening of the basement from the northwest to the southeast. Major faulting does not appear to be present in the basement rocks.
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