Helium: A Gaseous Geochemical Guide to Faults, Fractures and Geothermal Systems
- Key words
- Exploration; USA; AK; Pilgrim Springs; Helium; Faults; Fractures; Radioactivity; Uranium-Thorium; Soil Surveys
- Conference
- Geothermal Resources Council Transactions
- Year
- 1981
- Session
- Exploration; Helium; Geochemical surveys; Soil gas surveys
- Language
- English
Abstract
Helium-4, which is a product of radioactive decay in basement rocks, will preferentially migrate to the surface along deep seated faults and fractures. The discovery of such fault and fracture systems is a key element in the exploration for geothermal deposits. Helium geochemistry provides a rapid, cost effective and environmentally non-destructive exploration tool which can define concealed fracture zones. The applicability of this technique has been clearly demonstrated in regional and detailed prospect evaluations.
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