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Chemical and isotopic characteristics of fluids within the Baca Geothermal Reservoir, Valles Caldera, New Mexico
Abstract Geochemical and isotopic fluid data from 1
Geochemical and isotopic fluid data from 10 wells completed in the Baca geothermal reservoir indicate the presence of both a normal enthalpy, lower-chloride fluid and an excess enthalpy, higher-chloride fluid. This chemical difference, along with enrichment of deuterium and oxygen 18 in the excess enthalpy fluid, can be explained by adiabatic cooling or boiling at 170°C during upward convection along the central fault system in the reservoir followed by conductive reheating during downward movement. Chemical modeling using the EQ3NR computer code indicates chemical stability with the mineral assemblage quartz, albite, K-mica, epidote, chlorite, calcite, anhydrite, and pyrite, which is in agreement with observed minerals in well cuttings. This correlation, along with chemical geothermometers, implies a constant temperature range of 260°-320°C during evolution of the reservoir.
°-320°C during evolution of the reservoir.  +
Author Art F. White  +
Citation Art F. White. 1986. [[Chemical and isotopic characteristics of fluids within the Baca Geothermal Reservoir, Valles Caldera, New Mexico]]. Journal of Geophysical Research. 91(B2):1855-1866.  +
DOI 10.1029/JB091iB02p01855  +
Document type Journal Article  +
Foaf/Page http://onlinelibrary.wiley.com/doi/10.1029/JB091iB02p01855/abstract  +
Link http://onlinelibrary.wiley.com/doi/10.1029/JB091iB02p01855/abstract  +
Name Chemical and isotopic characteristics of fluids within the Baca Geothermal Reservoir, Valles Caldera, New Mexico  +
PublicationDate 1986  +
Publisher Journal of Geophysical Research  +
ReferenceGenre Geothermal  +
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Chemical and isotopic characteristics of fluids within the Baca Geothermal Reservoir, Valles Caldera, New Mexico + , Chemical and isotopic characteristics of fluids within the Baca Geothermal Reservoir, Valles Caldera, New Mexico + , Chemical and isotopic characteristics of fluids within the Baca Geothermal Reservoir, Valles Caldera, New Mexico + , Chemical and isotopic characteristics of fluids within the Baca Geothermal Reservoir, Valles Caldera, New Mexico + , Chemical and isotopic characteristics of fluids within the Baca Geothermal Reservoir, Valles Caldera, New Mexico +
Categories References , Geothermal References , Reference Materials
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14:48:27, 22 May 2014  +
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Valles Caldera - Redondo Geothermal Area + ReferenceForWhite1986
Analytical Modeling At Valles Caldera - Redondo Geothermal Area (White, 1986) + , Isotopic Analysis At Valles Caldera - Redondo Geothermal Area (White, 1986) + Reference material
 
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