(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

Related Subjects

15 GEOTHERMAL ENERGY
58 GEOSCIENCES
SALTON SEA GEOTHERMAL FIELD
GEOCHEMISTRY
ANHYDRITE
BRINES
CALIFORNIA
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
DRILL CORES
GEOTHERMAL FLUIDS
GEOTHERMAL WELLS
HYDROTHERMAL SYSTEMS
ISOTOPE RATIO
PROGRESS REPORT
ROCK-FLUID INTERACTIONS
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM SULFATES
CHEMISTRY
DOCUMENT TYPES
ENERGY SYSTEMS
FEDERAL REGION IX
FLUIDS
GEOTHERMAL FIELDS
GEOTHERMAL SYSTEMS
MINERALS
NORTH AMERICA
OXYGEN COMPOUNDS
SULFATE MINERALS
SULFATES
SULFUR COMPOUNDS
USA
WELLS
Geothermal Legacy
152003* - Geothermal Data & Theory- Rock-Water-Gas Interactions
580000 - Geosciences