Isotopic Analysis-Fluid At Raft River Geothermal Area (1982)

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Exploration Activity: Isotopic Analysis-Fluid At Raft River Geothermal Area (1982)

Exploration Activity Details
Location Raft River Geothermal Area
Exploration Technique Isotopic Analysis- Fluid
Activity Date 1982

Usefulness not useful
DOE-funding Unknown

 
Exploration Basis
Determine which reservoir model best matches the isotope data.
 
Notes
1) Chemical and light-stable isotope data are presented for water samples from the Raft River geothermal area and nearby. On the basis of chemical character, as defined by a trilinear plot of per cent milliequivalents, and light-stable isotope data, the waters in the geothermal area can be divided into waters that have and have not mixed with cold water. 2) Helium isotope ratios have been measured in geothermal fluids. These ratios have been interpreted in terms of the processes which supply He in distinct isotopic ratios (i.e. magmatic He, ~10 Ra; atmospheric He, Ra; and crustal He, ~0.1 Ra) and in terms of the processes which can alter the isotopic ratio (hydrologic mixing, U-Th series alpha production and weathering release of crustal He, magma aging and tritiugenic addition of 3He). Raft River contains only crustal He indicating no active volcanic sources.

 
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