MX Siting Investigation. Gravity Survey - Big Smokey Valley, Nevada.
FUGRO NATIONAL INC LONG BEACH CA
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The interpretation of Big Smoky Valley gravity data indicates that there are major range-bounding normal fault systems extending the full length of the valley on both sides. The maximum depth calculated in the valley is 4000 feet 1219 m. The calculated bedrock depths are only approximations because little is known about the actual density distribution in and around the valley and the residual gravity anomaly is necessarily based on an interpreted regional field. An average density contrast of 0.50 gcc between the alluvium and bedrock was used to calculate the thickness of the valley-fill material. Future studies that acquire better density data or measure actual depths to bedrock in deep parts of the valley can be used to refine the gravity interpretation.
- Geology, Geochemistry and Mineralogy