Geochemistry Of The Lake City Geothermal System, California, Usa

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Conference Paper: Geochemistry Of The Lake City Geothermal System, California, Usa

Abstract
Lake City hot springs and geothermal wells chemically fall into a narrow compositional group. This indicates that, with the exception of a few hot springs, mixing with shallow cold ground waters does not have a significant influence on the chemistry of the hot springs. Narrow ranges in plots of F, B and Li versus Cl, and _D to _18O values indicate minimal mixing. Because of this, the compositions of the natural hot spring waters are fairly representative of the parent geothermal water. The average geothermometer temperature for the hot springs and one hot agricultural well is 167oC. The pre-flash geothermometer temperature for the Phipps #2 well is 200oC. This is significantly higher than the downhole temperature of 170oC measured for Phipps #2, suggesting hotter fluids at depth. Stable isotope analysis of the geothermal fluids indicate that the recharge water is lighter than local surface or shallow ground water; suggesting that the source for the recharge water for the geothermal system is from a much higher elevation than local shallow ground waters or that there may be a glacial (Pleistocene) component

Authors 
Chris Sladek, Greg B. Arehart and Walter R. Benoit








Published 
GRC, 2004





DOI 
Not Provided
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Citation

Chris Sladek,Greg B. Arehart,Walter R. Benoit. 2004. Geochemistry Of The Lake City Geothermal System, California, Usa. In: (!) ; (!) ; (!) . (!) : GRC; p. (!)