Salton Sea Geothermal Area
Geothermal Area Profile
|Exploration Region:||Gulf of California Rift Zone|
|GEA Development Phase:||Operational"Operational" is not in the list of possible values (Phase I - Resource Procurement and Identification, Phase II - Resource Exploration and Confirmation, Phase III - Permitting and Initial Development, Phase IV - Resource Production and Power Plant Construction) for this property.|
|Mean Reservoir Temp:||302°C575.15 K
|Estimated Reservoir Volume:||107.16 km³107,160,000,000 m³
|Mean Capacity:||437 MW437,000 kW
|USGS Mean Reservoir Temp:||310°C583.15 K
|USGS Estimated Reservoir Volume:||128 km³|||
|USGS Mean Capacity:||2210 MW|||
History and Infrastructure
Operating Power Plants: 10
Developing Power Projects: 0
|No geothermal projects listed.|
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Power Production Profile
|Gross Production Capacity:|
|Net Production Capacity:|
|Power Purchasers :|
Regulatory and Environmental Issues
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First Discovery Well
|Initial Flow Rate:||
|Flow Test Comment:|
Well Field Description
Well Field Information
|Number of Production Wells:|
|Number of Injection Wells:|
|Number of Replacement Wells:|
|Average Temperature of Geofluid:|| 300°C573.15 K
|Sanyal Classification (Wellhead):||High Temperature|
|Reservoir Temp (Geothermometry):|
|Reservoir Temp (Measured):|
|Sanyal Classification (Reservoir):|
|Depth to Top of Reservoir:||1000m1 km
|Depth to Bottom of Reservoir:||2500m2.5 km
|Average Depth to Reservoir:||1750m1.75 km
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Geology of the Area
|Tectonic Setting:||Rift Zone|
|Controlling Structure:||Pull-Apart in Strike-Slip Fault Zone|||
|Brophy Model:||Type D: Sedimentary-hosted, Volcanic-related Resource|
|Moeck-Beardsmore Play Type:||CV-2a: Plutonic - Recent or Active Volcanism, CV-2b: Plutonic - Inactive Volcanism, CV-3: Extensional Domain"CV-2a: Plutonic - Recent or Active Volcanism, CV-2b: Plutonic - Inactive Volcanism, CV-3: Extensional Domain" is not in the list of possible values (CV-1a: Magmatic - Extrusive, CV-1b: Magmatic - Intrusive, CV-2a: Plutonic - Recent or Active Volcanism, CV-2b: Plutonic - Inactive Volcanism, CV-3: Extensional Domain, CD-1: Intracratonic Basin, CD-2: Orogenic Belt, CD-3: Crystalline Rock - Basement) for this property.|
|Modern Geothermal Features:||Hot Springs, Mudpots, Mud Pools, or Mud Volcanoes|||
|Relict Geothermal Features:|
|Host Rock Age:||Pleistocene|||
|Host Rock Lithology:||sandstone|||
|Cap Rock Age:||Holocene|||
|Cap Rock Lithology:||shale|||
Salton Sea geothermal area is located in the Salton Trough, an area of active spreading and attendant, plate-juncture plutonism. The Trough is a major transtensional rift—between the Pacific plate, on the west, and the North American plate, on the east—that merges southward through Mexico into the long, narrow Gulf of California. A chain of transform-segmented, oceanic spreading centers along the axis of the Gulf extends into southern California and the deeply-sedimented Trough as a succession of plate-bounding, right-stepping, right-lateral strike-slip faults connected by magmatically-active dilational jogs. The Salton Sea Geothermal Field is situated in the northernmost of these jogs, the northeastern boundary of which is the southeastern terminus of the San Andreas transform.
The Salton Sea geothermal system is unusually hot (up to at least 390°C at 2 km depth), hypersaline (up to 26 wt.%), and metalliferous (Fe, Zn, Pb, Cu). The system circulates in a permeable network of faults, stockwork fractures, breccias (hydrothermal and tectonic), and porous sandstones in the thick (~6 km) alluvial and lacustrine Salton Trough sedimentary sequence. The sequence comprises mostly sandstone, siltstone, and mudstone in various proportions, and is locally intruded by Pleistocene to Holocene gabbroic, granitic, and rhyolitic (but not compositionally intervening) plutons; and is interrupted at depth (about 1.6 km) by a buried rhyolite flow-dome-intrusive complex emplaced about 400,000 years ago. Similar but smaller Holocene rhyolitic volcanic centers are exposed in a northeast-oriented, crescent-shaped, concave-northwest array at the northwestern margin of the developed Salton Sea geothermal field.
known or inferred magmatic system
NEPA-Related Analyses (0)
Below is a list of NEPA-related analyses that have been conducted in the area - and logged on OpenEI. To add an additional NEPA-related analysis, see the NEPA Database.
CSV No NEPA-related documents listed.
Exploration Activities (3)
Below is a list of Exploration that have been conducted in the area - and cataloged on OpenEI. Add a new Exploration Activity
|Page||Technique||Activity Start Date||Activity End Date||Reference Material|
|Conceptual Model At Salton Sea Geothermal Area (1977)||Conceptual Model||1977||1977||
|Earth Tidal Analysis At Salton Sea Geothermal Area (1980)||Earth Tidal Analysis||1980||1980||
|Fluid Inclusion Analysis At Salton Sea Geothermal Area (1990)||Fluid Inclusion Analysis||1990||1990|
- Jeffrey W. Adams. 10/2011. The Geysers and Salton Sea Geothermal Fields. Mineral Resources Management Division. California State Lands Commission. 1-3p.
- Geothermex Inc.. 2004. New Geothermal Site Identification and Qualification. Richmond, CA: California Energy Commission. Report No.: P500-04-051. Contract No.: 500-04-051.
- Karl Gawell. 04/03/2014. Statement of Karl Gawell, Executive Director, Geothermal Energy Association Before the Senate Select Committee on California’s Energy Independence & Assembly Select Committee on Renewable Energy Economy in Rural California. Personal Communication sent to Senate Select Committee on California’s Energy Independence & Assembly Select Committee on Renewable Energy Economy in Rural California.
- U.S. Geological Survey. 2008. Assessment of Moderate- and High-Temperature Geothermal Resources of the United States. USA: U.S. Geological Survey. Report No.: Fact Sheet 2008-3082.
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List of existing Geothermal Resource Areas.