A Geothermal CIS for Nevada: Defining Regional Controls And Favorable Exploration Terrains for Extensional Geothermal Systems

Basic Information
Author: Mark F. Coolbaugh, James V. Taranik, Gary L. Raines, Lisa A. Shevenell, Don L. Sawatzky, Richard Bedell, Timothy B. Minor
Description:Spatial analysis with a GIS was used to evaluate geothermal systems in Nevada using digital maps of geology, heat flow, young faults, young volcanism, depth to groundwater, groundwater geochemistry, earthquakes, and gravity. High-temperature (>160C) extensional geothermal systems are preferentially associated with northeast-striking late Pleistocene and younger faults, caused by crustal extension, which in most of Nevada is currently oriented northwesterly (as measured by GPS). The distribution of sparse young (e1.5Ma) basaltic vents also correlate with geothermal systems, possibly because the vents help identify which young structures penetrate deeply into the crust. As expected, elevated concentrations of boron and lithium in groundwater were found to be favorable indicators of geothermal activity.
Publication Date:
Author Contact Information
Distributor Contact Information
Name: Web specialist
Organization Name: Nevada Bureau of Mines and Geology
Street: University of Nevada, Reno MS178
City: Reno
State: NV
Zip: 89557
Phone: 775-784-6691
Geographic Extent
North Bounding Latitude: 42.5368920079
South Bounding Latitude: 34.723554927
East Bounding Longitude: -112.993652523
West Bounding Longitude: -120.991699398