Principal Facts and a Discussion of Terrain Correction Methods for the Complete Bouguer Gravity Anomaly Map of the Cascade Mountains, Washington
Since 1974, the Division of Geology and Earth Resources, in conjunction with the US Department of Energy, has supported gravity studies in the Cascade Mountains of Washington State (Danes, 1975, 1979, 1981; Korosec and others, 1981). The purpose of the work has been to gather baseline gravity data for eventual contribution to geothermal resource evaluation. However, it is expected that the Cascade gravity data will prove useful in a number of future endeavors such as fossil fuel and mineral exploration, as the gravity method is a basic tool of the exploration geophysicist. Results of the Cascade gravity project are summarized graphically as a complete Bouguer gravity anomaly map of the Cascade Mountains, Washington. This report provides supplementary data and documentation for the complete Bouguer gravity anomaly map. Presented are principal gravity facts, simple Bouguer and Free-air gravity anomalies, computational methods, error analysis and a discussion of terrain corrections. It is hoped that release of this report will encourage analysis of Cascade gravity data beyond the standard treatment (complete Bouguer gravity anomaly at a reduction density of 2.67 g/cm{sup 2}) presented in Danes and Phillips, (1983).
- Research Organization:
- Division of Geology and Earth Resources, Washington Department of Natural Resources, Olympia, Washington
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC07-79ET27014
- OSTI ID:
- 891164
- Report Number(s):
- DOE/ET/27014-T11
- Country of Publication:
- United States
- Language:
- English
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