Assessment of geothermal resources of the United States: 1978
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- Document: Report (pdf)
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- NGMDB Index Page: National Geologic Map Database Index Page (html)
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Abstract
The geothermal resource assessment presented in this Circular is a refinement and updating of USGS Circular 726. Nonproprietary information available in June 1978 is used to assess geothermal energy in the ground and, when possible, to evaluate the fraction that might be recovered at the surface. Five categories of geothermal energy are discussed:
a. Conduction-dominated regimes
b. Igneous-related geothermal systems
c. High-temperature (>1500C) and intermediate-temperature (90°-150°C) hydrothermal convection systems
d. Low-temperature (<900C) geothermal waters
e. Geopressured-geothermal energy (both thermal energy and energy from dissolved methane).
Assessment data are presented on three colored maps prepared in cooperation with the National Oceanic and Atmospheric Administration.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Assessment of geothermal resources of the United States: 1978 |
| Series title | Circular |
| Series number | 790 |
| DOI | 10.3133/cir790 |
| Year Published | 1979 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | Report: iv, 163 p.; 3 Plates: 34.51 x 46.16 inches and smaller |
| Country | United States |
| Google Analytic Metrics | Metrics page |