Geological, geophysical, and thermal characteristics of the Salton Sea Geothermal Field, California

Younker, Leland W.; Kasameyer, P.W.; Tewhey, J.D.

doi:10.1016/0377-0273(82)90028-2

Cited by 76 publications

(60 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Instead, enhancement of the heat propagation by the fluid circulations would be efficient enough to reach gradients of more than 100 • C km −1 . Similar gradients are reported in the Salton Sea (Muffler and White, 1969;McDowell and Elders, 1980;McDowell and Elders, 1983), where Younker et al (1982) identified small-scale convection cells beneath an impermeable cap rock.…”

Section: Estimating the Importance Of Fluid Circulationssupporting

confidence: 81%

High-temperature metamorphism during extreme thinning of the continental crust: a reappraisal of the North Pyrenean passive paleomargin

et al. 2015

View full text Add to dashboard Cite

Abstract. An increasing number of field examples in mountain belts show that the formation of passive margins during extreme continent thinning may occur under conditions of high to very high thermal gradient beneath a thin cover of syn-rift sediments. Orogenic belts resulting from the tectonic inversion of distal margins and regions of exhumed continental mantle may exhibit high-temperature, low-pressure (HT-LP) metamorphism and coeval syn-extensional, ductile deformation. Recent studies have shown that the northern flank of the Pyrenean belt, especially the North Pyrenean Zone, is one of the best examples of such inverted hot, passive margin. In this study, we provide a map of HT-LP metamorphism based on a data set of more than 100 peak-temperature estimates obtained using Raman spectroscopy of the carbonaceous material (RSCM). This data set is completed by previous PT (pressure and temperature) estimates based on mineral assemblages, and new 40 Ar-39 Ar (amphibole, micas) and U-Pb (titanite) ages from metamorphic and magmatic rocks of the North Pyrenean Zone. The implications on the geological evolution of the Cretaceous Pyrenean paleomargins are discussed. Ages range mainly from 110 to 90 Ma, and no westward or eastward propagation of the metamorphism and magmatism can be clearly identified. In contrast, the new data reveal a progressive propagation of the thermal anomaly from the base to the surface of the continental crust. Focusing on the key localities of the Mauléon basin, Arguenos-Moncaup, Lherz, Boucheville and the Bas-Agly, we analyze the thermal conditions prevailing during the Cretaceous crustal thinning. The results are synthetized into a series of three regional thematic maps and into two detailed maps of the Arguenos-Moncaup and Lherz areas. The results indicate a first-order control of the thermal gradient by the intensity of crustal thinning. The highest grades of metamorphism are intimately associated with the areas where subcontinental mantle rocks have been unroofed or exhumed.

show abstract

Section: Estimating the Importance Of Fluid Circulationssupporting

confidence: 81%

High-temperature metamorphism during extreme thinning of the continental crust: a reappraisal of the North Pyrenean passive paleomargin

et al. 2015

View full text Add to dashboard Cite

show abstract

“…[5] The ammonia sources described in the present work were discovered during the course of an airborne hyperspectral longwave infrared (LWIR, 8-13 mm) imaging survey of the Salton Sea Geothermal Field (SSGF), an area of significant geothermal activity in southern California [Younker et al, 1982]. Within the SSGF, the presumed surface track of the Calipatria Fault contains numerous fumaroles and other hydrothermal features much in evidence, some of which have been previously described [Svensen et al, 2007;Lynch and Hudnut, 2008;Rudolph and Manga, 2010;Onderdonk et al, 2011].…”

Section: Field Experimentsmentioning

confidence: 85%

Remotely sensed ammonia emission from fumarolic vents associated with a hydrothermally active fault in the Salton Sea Geothermal Field, California

et al. 2011

View full text Add to dashboard Cite

Airborne hyperspectral imaging surveys were conducted over a geothermally active region straddling the southeastern shore of the Salton Sea in Southern California. The imagery was acquired across the 7.6–13.5 μm longwave‐infrared region with a ground sample distance of approximately 1 m. Prominent thermal hot spots associated with fumaroles along a known fault line were observed to coincide with emission of free ammonia, presumed to originate from geothermally induced pyrolytic decomposition of nitrogenous compounds that permeate the lake water, sediment, and adjacent agricultural terrain. It is shown that the inferred fluxes of ammonia constitute a significant fraction (0.8–2.5%) of the total atmospheric ammonia burden assessed for the Salton Sea environs and represent a previously unreported source for that locale.

show abstract

“…Fry analysis can indicate the direction of tectonic stress by locating spots and points and calculating their direction distribution, thus indicating the distribution direction of point or line objects. Later, many scholars expanded the scene of application to spatial distribution analysis [39,40] and achieved good results [6]. Fry analysis [41] can operate manually by using a sheet of tracing paper on which a series of parallel reference lines (typically north pointing on a map) have been drawn and the location of each data point is recorded.…”

Section: Hot Spring Data Processing By the Fry Methodsmentioning

confidence: 99%

A Novel Workflow for Geothermal Prospectively Mapping Weights-of-Evidence in Liaoning Province, Northeast China

Sang

Liu

et al. 2017

Energies

View full text Add to dashboard Cite

Geological faults are highly developed in the eastern Liaoning Province in China, where Mesozoic granitic intrusions and Archean and Paleoproterozoic metamorphic rocks are widely distributed. Although the heat flow value in eastern Liaoning Province is generally low, the hot springs are very developed. It is obvious that the faults have significant control over the distribution of hot springs, and traditional methods of spatial data analysis such as WofE (weight of evidence) usually do not take into account the direction of the distribution of geothermal resources in the geothermal forecast process, which seriously affects the accuracy of the prediction results. To overcome the deficiency of the traditional evidence weight method, wherein it does not take the direction of evidence factor into account, this study put forward a combination of the Fry and WofE methods, Fry-WofE, based on geological observation, gravity, remote sensing, and DEM (digital elevation model) multivariate data. This study takes eastern Liaoning Province in China as an example, and the geothermal prospect was predicted respectively by the Fry-WofE and WofE methods from the statistical data on the spatial distribution of the exposed space of geothermal anomalies the surface. The result shows that the Fry-WofE method can achieve better prediction results when comparing the accuracy of these two methods. Based on the results of Fry-WofE prediction and water system extraction, 13 favorable geothermal prospect areas are delineated in eastern Liaoning Province. The Fry-WofE method is effective in study areas where the geothermal distribution area is obviously controlled by the fault. We provide not only a new method for solving the similar issue of geothermal exploration, but also a new insight into the distribution of geothermal resources in Liaoning Province.

show abstract

Geological, geophysical, and thermal characteristics of the Salton Sea Geothermal Field, California

Abstract: This is a preprint of I paper intended for publication in a Journal or proceedlnEs. Since channes mav be made before Dubliatbn. thb DreDrint is made avrilable with the un--. . dentmndhg that it will not be cited or reproduced without the prmisaion of the author.

Cited by 76 publications

References 31 publications

High-temperature metamorphism during extreme thinning of the continental crust: a reappraisal of the North Pyrenean passive paleomargin

High-temperature metamorphism during extreme thinning of the continental crust: a reappraisal of the North Pyrenean passive paleomargin

Remotely sensed ammonia emission from fumarolic vents associated with a hydrothermally active fault in the Salton Sea Geothermal Field, California

A Novel Workflow for Geothermal Prospectively Mapping Weights-of-Evidence in Liaoning Province, Northeast China

Contact Info

Product

Resources

About