Active metamorphism of upper Cenozoic sediments in the Salton Sea geothermal field and the Salton Trough, southeastern California
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Abstract
The Salton Sea geothermal system is entirely within Pliocene and Quaternary sediments of the Colorado River delta at the north end of the Gulf of California. At the time of deposition, these sediments consisted of sands, silts, and clays of uniform original mineralogic composition, but under the elevated temperatures and pressures of the geothermal system they are being transformed to low-grade metamorphic rocks of the greenschist facies. We have studied these transformations by X-ray, petrographic, and chemical analyses of cuttings and core from deep wells that penetrate the sedimentary section.
Temperatures within the explored geothermal system range up to 360° C at 7100 feet. The wells produce a brine containing over 250,000 ppm dissolved solids, primarily Cl, Na, Ca, K, and Fe, plus a host of minor constituents.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Active metamorphism of upper Cenozoic sediments in the Salton Sea geothermal field and the Salton Trough, southeastern California |
| Series title | Geological Society of America Bulletin |
| DOI | 10.1130/0016-7606(1969)80[157:AMOUCS]2.0.CO;2 |
| Volume | 80 |
| Issue | 2 |
| Year Published | 1969 |
| Language | English |
| Publisher | Geological Society of America |
| Description | 27 p. |
| First page | 157 |
| Last page | 181 |
| Country | United States |
| State | California |
| Other Geospatial | Salton Sea, Salton Trough |
| Google Analytic Metrics | Metrics page |