Gas Flux Sampling At Dixie Valley Geothermal Area (Iovenitti, Et Al., 2013)

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Exploration Activity: Gas Flux Sampling At Dixie Valley Geothermal Area (Iovenitti, Et Al., 2013)

Exploration Activity Details
Location Dixie Valley Geothermal Area
Exploration Technique Gas Flux Sampling
Activity Date 2012 - 2013

Usefulness useful
DOE-funding Unknown

Exploration Basis
the purpose of this project was to gain new geophysical data in order to add onto existing data and develop a better understanding of the geothermal area. Ultimately for potential development of EGS.
A CO2 soil gas flux survey was conducted in areas recognized as geothermal upflow zones within the Dixie Valley Fault Zone. This survey consisted of 308 sample locations along 7 transects. The transects were chosen based on a range-front fault that correlates with known shallow thermal anomalies and surface activity. Most flux measurements were low with the exception of samples taken within about 10 m of an unnamed fumarole area and one taken in a marshland where the soil was visibly wetter and the vegetation was thicker. The overall results revealed no evidence for geothermal fluid upflow besides the already known fumarole area. The results suggest that the range-front fault is for the most part impermeable at the surface except in the localized fumarole area.


Additional References