Geothermal prospecting in The Geysers-Clear Lake area, northern California
Journal Article
·
· Geology; (United States)
- Geological Survey, Menlo Park, CA
The geochemistry of thermal waters combined with mapping and geophysical studies have been used to define boundaries of the geothermal steam field in The Geysers-Clear Lake area, California. Chemical geothermometry and drill hole data imply that a 200/sup 0/C hot-water geothermal system underlies much of the 2.0 to 0.01-m.y.-old Clear Lake Volcanics. Chloride concentrations and electrical resistivity define the concealed extent of Great Valley sedimentary rocks underlying the young volcanic cover. It is suggested that the 80 or more vents in the volcanic field act as permeable conduits for water recharge and thus prevent creation of a widespread vapor-dominated system northeast of the Collayomi fault zone.
- OSTI ID:
- 5025354
- Journal Information:
- Geology; (United States), Journal Name: Geology; (United States) Vol. 5:8; ISSN GLGYB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
15 GEOTHERMAL ENERGY
150301 -- Geothermal Exploration & Exploration Technology-- Geophysical Techniques & Surveys
150302* -- Geothermal Exploration & Exploration Technology-- Geochemical Techniques & Surveys
BOREHOLES
CALIFORNIA
CAVITIES
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPLORATION
FLOW RATE
GEOCHEMICAL SURVEYS
GEOCHEMISTRY
GEOPHYSICAL SURVEYS
GEOTHERMAL EXPLORATION
GEOTHERMAL FIELDS
GEOTHERMAL SYSTEMS
GEOTHERMOMETRY
GEYSERS GEOTHERMAL FIELD
HALIDES
HALOGEN COMPOUNDS
HYDROTHERMAL SYSTEMS
MAPS
MINERALS
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
ROCKS
SEDIMENTARY ROCKS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
THERMAL WATERS
USA
VAPOR-DOMINATED SYSTEMS
VOLCANIC REGIONS
WESTERN REGION
150301 -- Geothermal Exploration & Exploration Technology-- Geophysical Techniques & Surveys
150302* -- Geothermal Exploration & Exploration Technology-- Geochemical Techniques & Surveys
BOREHOLES
CALIFORNIA
CAVITIES
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPLORATION
FLOW RATE
GEOCHEMICAL SURVEYS
GEOCHEMISTRY
GEOPHYSICAL SURVEYS
GEOTHERMAL EXPLORATION
GEOTHERMAL FIELDS
GEOTHERMAL SYSTEMS
GEOTHERMOMETRY
GEYSERS GEOTHERMAL FIELD
HALIDES
HALOGEN COMPOUNDS
HYDROTHERMAL SYSTEMS
MAPS
MINERALS
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
ROCKS
SEDIMENTARY ROCKS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
THERMAL WATERS
USA
VAPOR-DOMINATED SYSTEMS
VOLCANIC REGIONS
WESTERN REGION