Characteristics of selected geothermal systems in Idaho

Basic Information
Author: Applegate, J.K., Donaldson, P.R.
Description:Many areas of Idaho exhibit geothermal potential. Large areas of the southern portion of the state have been explored by commercial firms, and numerous areas were identified by White and Williams (1975) as having high geothermal potential. Only limited drilling has been accomplished, and most evaluations have been based on geophysical, geological, and geochemical data. Regional geophysical data. Supplemented by local surveys suggest the lack of a localized heat source. Instead, geological and geophysical studies suggest that the occurrence of geothermal systems in this area results from heat concentration below an insulating layer. The insulation typically comprises an interbedded sequence of sediments and volcanics. The noncontinuous permeability in such a sequence restricts the development of large scale convection systems. Otherwise the insulating properties of the sequence would be lost to convective heat transfer. Specific geothermal reservoirs result from structural controls such as fault and fracture related porosity. Initial studies in three areas of Idaho support these concepts.
Publication Date:
Author Contact Information
Distributor Contact Information
Organization Name: University of Idaho
Street: Morrill Hall, University of Idaho
City: Moscow
State: ID
Zip: 83844-3014
Phone: 208-885-7991
Geographic Extent
North Bounding Latitude: 49
South Bounding Latitude: 42
East Bounding Longitude: -111
West Bounding Longitude: -117.25