Near-field (waste- and repository-induced) effects were excluded from consideration in this analysis, but they can be added in future analyses when that methodology development is more complete. (1967) Sulfides associated with the Salton Sea geothermal brine. This reference site analysis was initially published as a Working Document in December 1979. The way to preclude such an intrusion is for continued control over the repository sitet either through direct institutional control or through the effective passive transfer of information. And yet, geothermal is currently 22 percent of California’s renewable energy portfolio (a greater sum of electricity than Iceland’s geothermal) and there are still untapped resources for further geothermal … Subsurface temperatures and brine concentrations in the SSGF span most of the temperature range and fluid inclusion brine range expected in a salt repository, and the clay-rich sedimentary rocks are similar to those which host bedded or domal salts. Consequence analyses indicated calculated human doses that would be highly deleterious. A mineralogical inventory of geothermal features southeast of the Salton Sea, Imperial County, California. Salton Sea geothermal field (SSGF), 105 MW at EMGF and 84 MW at the Heber geothermal field). Additional analyses indicated that doses well above background would occur from such a scenario t even if it occurred a million years into the future. The presence of brines with different oxygen isotopic signatures also indicate lack of mixing. This reference site analysis was initially published as a Working Document in December 1979. Skinner, Brian John,, White, D.E., Rose, H.J., Mays, R.E. barriers. The Salton Sea geothermal field (SSGF) is a high salinity, high-temperature resource. If you know of more minerals from this site, please. The present report represents a revisiont based in part on the responses received from the external reviewers. Large arrows show modern relative motion of tectonic plates. Two domes are linked by subaqueous pyroclastic deposits; the others are single extrusions with or without marginal lava flows. No luck so far, but the company is still trying. The AEGIS staff developed a specific human intrusion scenario at 100 years and 1000 years post-closure, which is one of a whole suite of possible scenarios. Summaries of the comments from the reviewers and responses to these comments by the AEGIS staff are presented. Skinner, Brian John,, White, D.E., Rose, H.J., Mays, R.E. Salton Sea geothermal field (SSGF), 105 MW at EMGF and 84 MW at the Heber geothermal field). As many of the chemical processes observed in the SSGF are similar to those expected. The intrusions serve as heat sources to drive hydrothermal systems. … Mineralization is sulphide and sulfosalt deposition in geothermal well discharge pipes. Particular attention has been paid to defining zones of fluid-rock interaction in which analyses of coexisting geothermal reservoir brine and hydrothermally altered, As a methodology demonstration for the Office of Nuclear Waste Isolation (ONWI), the Assessment of Effectiveness of Geologic Isolation Systems (AEGIS) Program conducted an initial reference site analysis of the long-term effectiveness of a salt dome repository. Where fluids were being produced from wells, brine chemistry as well as stable isotope and uranium-thorium series analyses are reported. This provided a demonstration of the geotransport methodology that AEGIS can use in actual site evaluations, as well as the WRIT program's capabilities with respect to defining the source term and retardation rates of the radionuclides in the repository. The way to preclude such an intrusion is for continued control over the repository sitet either through direct institutional control or through the effective passive transfer of information. Mineralization is sulphide and sulfosalt deposition in geothermal well discharge pipes. Sulfur Hill, F2 fumerole field, Mullet Island, Salton Sea, Imperial Co., California, USA F2 fumarole field, Mullet Island, Salton Sea, Imperial Co., California, USA ... (2014). Skinner, Brian John,, White, D.E., Rose, H.J., Mays, R.E. The Imperial Irrigation District has approved a 1,900 acre lease agreement with Controlled Thermal Resources, for the company's 250 MW geothermal project in the Salton Sea. This page contains all mineral locality references listed on mindat.org. Salton Sea Geothermal field, Salton Sea, Imperial Co., California, USA : Occurrences located in discharge pipes from the exploited Salton Sea geothermal field. A secondary aspect of the specific human intrusion scenario involved a breach through the side of the salt dome t through which radionuclides migrated via the ground-water system to the accessible environment. The Salton Sea Geothermal Field is the largest water-dominated geothermal field in the Salton Trough in Southern California. Skinner, Brian John,, White, D.E., Rose, H.J., Mays, R.E. The more than thirty deep wells drilled in this field to produce steam for electrical generation penetrate sedimentary rocks containing concentrated brines where temperatures reach 365/sup 0/C at only 2 km depth. Economic Geology: 62: 321; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 97. As is typical of all geologic systems, the Salton Trough geothermal areas have their own particular characteristics, but they also have some underlying similarities. Without waste- and repository-induced effects, no plausible natural geologic events or processes which would compromise the repository integrity could be envisioned over the one-million-year time frame after closure. This topographic depression was formed by extension associated with the A wide span of temperatures, from surficial to greater than 300/degree/C, and salinities ranging from relatively dilute ground waters up to brines of 25 wt% total dissolved solids, span a range of environments that might be encountered in a waste repository in salt. (1967) Sulfides associated with the Salton Sea geothermal brine. The SSGF is a water-dominated field located in proximity to active strike-slip faults and a diffuse zone of seismicity. Geophysicists conducting an analysis of earthquakes in the area around the Salton Sea Geothermal Field in southern California found a strong correlation between seismic activity and operations for production of geothermal power, which involve pumping water into and out of an underground reservoir. The Salton Sea geothermal discovery well. Summary from a 2014 workshop on the state of the Salton Sea. Whole rock major, minor and trace element analyses and data on brine compositions are being used to study chemical migration in these sediments. (1967) Sulfides associated with the Salton Sea geothermal brine. Imperial Valley Geothermal Project, also known as the Salton Sea Geothermal Field, is a complex of eleven geothermal power stations located along the southeastern shore of the Salton Sea in the Imperial Valley of California. Without waste- and repository-induced effects, no plausible natural geologic events or processes which would compromise the repository integrity could be envisioned over the one-million-year time frame after closure. The Salton Sea Scientific Drilling Program (SSSDP) was the first large-scale drilling project undertaken by the U.S Continental Scientific Drilling Program. Geothermal fields (not all currently producing) are abbreviated and shown with red dots. Operations at the SSGF started in 1980s and consist of 10 operational geothermal plants [based on the Department of Oil, Gas, It is the second largest geothermal field in the United States after The Geysers in Northern California. Page generated: February 21, 2019 02:08:27. In ~ 2007 two ammonia-emitting fumarole fields that had been submerged beneath the Salton Sea were exposed for the first time in nearly 50 years. Subsequent flow tests of this well andlater wells in 1961 through 1972 revealed a gcothermal systcm with productivity and high temperalures at depths and Salton Sea geothermal is now considered the largest 1.000 MW pussible) and (250 IO 370 or to 700 water dominated in world. The Salton Sea occupies the lowest part of the Salton trough in Imperial County, CA. The exercise of the AEGIS methodology was successful in demonstrating the methodologyt and thus t in providing a basis for substantive peer review, in terms of further development of the AEGIS site-applications capability and in terms of providing insight into the potential for consequential human intrusion into a salt dome repository. SSGF - Salton Sea Geothermal Field. Economic Geology: 62: 321; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 72. These five fields have total heat output of 1,000–10,000 megawatts (1,300,000–13,400,000 hp). Here we compare the CPGF and SSGF, the two largest and hottest (maximum reservoir Berkshire owns the other 10 geothermal plants at the Salton Sea and has made a number of efforts over the years to produce valuable metals. L. E. Sabey 1, J. The AEGIS staff developed a specific human intrusion scenario at 100 years and 1000 years post-closure, which is one of a whole suite of possible scenarios. The Salton Sea Geothermal Field, however, provides an opportunity to investigate the migration and retardation of naturally occurring U, Th, Ra, Cs, Sr and other elements in hot brines which have been moving through clay-rich sedimentary rocks for up to 100,000 years. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. 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