Fluid Inclusion Analysis At Raft River Geothermal Area (2011)

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Exploration Activity: Fluid Inclusion Analysis At Raft River Geothermal Area (2011)

Exploration Activity Details
Location Raft River Geothermal Area
Exploration Technique Fluid Inclusion Analysis
Activity Date 2011

Usefulness not indicated
DOE-funding Unknown

 
Notes
Hydrogen isotope values of muscovite (δDMs ∼–100‰) and fluid inclusions in quartz (δDFluid ∼–85‰) indicate the presence of meteoric fluids during detachment dynamics. Recrystallized grain-shape fabrics and quartz c-axis fabric patterns reveal a large component of coaxial strain (pure shear), consistent with thinning of the detachment section. Therefore, the high thermal gradient preserved in the Raft River detachment reflects the transient geotherm that developed owing to shearing, thinning, and the potentially prominent role of convective flow of surface fluids.

 
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