(Sulfide-oxide-silicate phase equilibria and associated fluid inclusion properties in the Salton Sea geothermal system, California)

Technical Report · Wed Jun 01 00:00:00 EDT 1988

DOI:https://doi.org/10.2172/6993946· OSTI ID:6993946

McKibben, M A

Our studies involved petrographic, fluid inclusion, geochemical and stable isotopic studies of drillcores and fluids from the Salton Sea geothermal system. Our initial studies revealed the presence of previously-unrecognized evaporitic anhydrite at depth throughout the geothermal system. The high salinity of the Salton Sea geothermal brines previously had been attributed to low-temperature dissolution of surficial evaporitic deposits by meteoric waters. Our microthermometric studies of halite--containing fluid inclusions in the meta-evaporites indicated that the high salinity of the geothermal brines is derived in part from the hydrothermal metamorphism of relatively deeply-buried salt and evaporites. In addition, our research concentrated on mineralized fractures in drillcores.

• Research Organization: California Univ., Riverside, CA (USA). Inst. of Geophysics and Planetary Physics
• Sponsoring Organization: DOE/ER
• DOE Contract Number: FG03-85ER13408
• OSTI ID: 6993946
• Report Number(s): DOE/ER/13408-1; UCR/IGPP--88/27; ON: DE90012891
• Country of Publication: United States
• Language: English

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15 GEOTHERMAL ENERGY
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ALKALINE EARTH METAL COMPOUNDS
ANHYDRITE
BRINES
CALCIUM COMPOUNDS
CALCIUM SULFATES
CALIFORNIA
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
CHEMISTRY
DOCUMENT TYPES
DRILL CORES
ENERGY SYSTEMS
FEDERAL REGION IX
FLUIDS
GEOCHEMISTRY
GEOTHERMAL FIELDS
GEOTHERMAL FLUIDS
GEOTHERMAL SYSTEMS
GEOTHERMAL WELLS
Geothermal Legacy
HYDROTHERMAL SYSTEMS
ISOTOPE RATIO
MINERALS
NORTH AMERICA
OXYGEN COMPOUNDS
PROGRESS REPORT
ROCK-FLUID INTERACTIONS
SALTON SEA GEOTHERMAL FIELD
SULFATE MINERALS
SULFATES
SULFUR COMPOUNDS
USA
WELLS