A database
development task under the Great Basin Center for Geothermal Energy’s -
Geopowering of the West Project -
PIs James
V. Taranik and Lisa Shevenell.
Supported by
Department of Energy funding
under DE-FG07-02ID14311.
Project
Task Web Page -- Updated June 20, 2003
Dr. Gary L. Oppliger
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Color Isostatic Residual Gravity Anomaly upward continued 10 km viewed on shaded topography with faults. The isostatic residual color patterns reveal large scale bulk crustal density variations that correlate with major topographic and tectonic terrains. Orange is high gravity and purple is low. Changes in crustal age, terrain type and temperature produce most of these anomalies. The gravity data underlying this image is part of a compilation of new data sets and two large existing regional databases reprocessed by Oppliger, 2002. For a comprehensive discussion on the significance of isostatic residual anomalies see Simpson et.al. 1986. Click on image for higher resolution jpg (180kb). A very high resolution geo-registered ArcView tif image is also available.
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