scholarly journals Active metasomatism in the Cerro Prieto geothermal system, Baja California, Mexico: a telescoped low pressure/temperature metamorphic facies series

1983 ◽  
Author(s):  
P. Schiffman ◽  
W.A. Elders ◽  
A.E. Williams ◽  
S.D. McDowell ◽  
D.K. Bird
Keyword(s):  
Baja California ◽  
Low Pressure ◽  
Geothermal System ◽  
Cerro Prieto ◽  
Metamorphic Facies

scholarly journals Hydrothermal flow regime and magmatic heat source of the Cerro Prieto geothermal system, Baja California, Mexico

Geothermics ◽  
1984 ◽  
Vol 13 (1-2) ◽  
pp. 27-47 ◽  
Author(s):  
W.A. Elders ◽  
D.K. Bird ◽  
A.E. Williams ◽  
P. Schiffman
Keyword(s):  
Heat Source ◽  
Flow Regime ◽  
Baja California ◽  
Geothermal System ◽  
Cerro Prieto ◽  
Hydrothermal Flow

Geothermal Potential of the San Felipe Geothermal System, Baja California, México

2021 ◽  
Author(s):  
R.M. Prol-Ledesma ◽  
A. Rodriguez-Diaz ◽  
C. Gonzalez ◽  
I. González-Romo ◽  
M. Errasti ◽  
...  
Keyword(s):  
Baja California ◽  
Geothermal System ◽  
Geothermal Potential

Hydrothermal mineralogy of calcareous sandstones from the Colorado River delta in the Cerro Prieto geothermal system, Baja California, Mexico

1985 ◽  
Vol 49 (352) ◽  
pp. 435-449 ◽  
Author(s):  
Peter Schiffman ◽  
Dennis K. Bird ◽  
Wilfred A. Elders
Keyword(s):  
Colorado River ◽  
Compositional Data ◽  
Local Equilibrium ◽  
River Delta ◽  
Geothermal System ◽  
Silicate Mineral ◽  
Colorado River Delta ◽  
Higher Temperature ◽  
Cerro Prieto ◽  
Hydrothermal Mineral

AbstractThe Cerro Prieto geothermal system provides a unique opportunity for the detailed study of calc-silicate mineral transitions between the diagenetic clay-carbonate and greenschist facies within the terrigenous sediments of the Colorado River delta. In this system, progressive devolatization reactions within carbonate-cemented, quartzofeldspathic sediment have produced a distinct hydrothermal mineral zonation at temperatures between 200–370°C and fluid pressures below 0.3 kbar. Descriptive and compositional data are presented for these minerals which include wairakite, epidote, prehnite, actinolite, clinopyroxene, garnet, sphene, biotite, microcline, and calcite. Partitioning of octahedral Fe, Mg, and Al between coexisting authigenic silicates is comparable with data from higher temperature metamorphic rocks and demonstrates an approach to local equilibrium within this system. Calculated fugacities of oxygen at temperatures above 300°C are (with rare exception) more reducing than that defined by the quartz-fayalite-magnetite buffer, a result consistent with the scarcity of hematite and grandite and the ubiquitous presence of organic material in Cerro Prieto sandstones.

scholarly journals Spatio-temporal evolution of aseismic ground deformation in the Mexicali Valley (Baja California, Mexico) from 1993 to 2010, using differential SAR interferometry

2015 ◽  
Vol 372 ◽  
pp. 335-341 ◽  
Author(s):  
O. Sarychikhina ◽  
E. Glowacka
Keyword(s):  
Deformation Rate ◽  
Baja California ◽  
Temporal Evolution ◽  
Ground Deformation ◽  
Geothermal Field ◽  
Sar Interferometry ◽  
Deformation Pattern ◽  
Ground Fissures ◽  
Spatio Temporal ◽  
Cerro Prieto

Abstract. Ground deformation in Mexicali Valley, Baja California, Mexico, the southern part of the Mexicali-Imperial valley, is influenced by active tectonics and human activity, mainly that of geothermal fluid extraction in the Cerro Prieto Geothermal Field. Significant ground deformation, mainly subsidence (~ 18 cm yr−1), and related ground fissures cause severe damage to local infrastructure. The technique of Differential Synthetic Aperture Radar Interferometry (DInSAR) has been demonstrated to be a very effective remote sensing tool for accurately measuring the spatial and temporal evolution of ground displacements over broad areas. In present study ERS-1/2 SAR and ENVISAT ASAR images acquired between 1993 and 2010 were used to perform a historical analysis of aseismic ground deformation in Mexicali Valley, in an attempt to evaluate its spatio-temporal evolution and improve the understanding of its dynamic. For this purpose, the conventional 2-pass DInSAR was used to generate interferograms which were used in stacking procedure to produce maps of annual aseismic ground deformation rates for different periods. Differential interferograms that included strong co-seismic deformation signals were not included in the stacking and analysis. The changes in the ground deformation pattern and rate were identified. The main changes occur between 2000 and 2005 and include increasing deformation rate in the recharge zone and decreasing deformation rate in the western part of the CPGF production zone. We suggested that these changes are mainly caused by production development in the Cerro Prieto Geothermal Field.

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