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Title: Consolidation of geologic studies of geopressured geothermal resources in Texas. 1982 annual report

Abstract

Detailed structural mapping at several horizons in selected study areas within the Frio growth-fault trend demonstrates a pronounced variability in structural style. At Sarita in South Texas, shale mobilization produced one or more shale ridges, one of which localized a low-angle growth fault trapping a wedge of deltaic sediments. At Corpus Christi, shale mobilization produced a series of large growth faults, shale-cored domed anticlines, and shale-withdrawal basins, which become progressively younger basinward. At Blessing, major growth faults trapped sands of the Greta/Carancahua barrier system with little progradation. At Pleasant Bayou, a major early growth-fault pattern was overprinted by later salt tectonics - the intrusion of Danbury Dome and the development of a salt-withdrawal basin. At Port Arthur, low-displacement, long-lived faults formed on a sand-poor shelf margin contemporaneously with broad salt uplifts and basins. Variability in styles is related to the nature and extent of Frio sedimentation and shelf-margin progradation and to the presence or absence of salt. Structural styles that are conducive to the development of large geothermal reservoirs include blocks between widely spaced growth faults having dip reversal, salt-withdrawal basins, and shale-withdrawal basins. These styles are widespread on the Texas Gulf Coast. However, actually finding a large reservoir dependsmore » on demonstrating the existence of sufficient sandstone with adequate quality to support geopressured geothermal energy production.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Texas Univ., Austin (USA). Bureau of Economic Geology
OSTI Identifier:
5839276
Report Number(s):
DOE/ET/27111-10
ON: DE84000481
DOE Contract Number:  
AC08-79ET27111
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; GEOPRESSURED SYSTEMS; GEOLOGIC STRUCTURES; TEXAS; GEOLOGIC FAULTS; GULF COAST; MAPPING; SANDSTONES; SHALES; ENERGY SYSTEMS; FEDERAL REGION VI; NORTH AMERICA; ROCKS; SEDIMENTARY ROCKS; USA; Geothermal Legacy; 150201* - Geology & Hydrology of Geothermal Systems- USA- (-1989)

Citation Formats

Morton, R A, Ewing, T E, Kaiser, W R, and Finley, R J. Consolidation of geologic studies of geopressured geothermal resources in Texas. 1982 annual report. United States: N. p., 1983. Web. doi:10.2172/5839276.
Morton, R A, Ewing, T E, Kaiser, W R, & Finley, R J. Consolidation of geologic studies of geopressured geothermal resources in Texas. 1982 annual report. United States. https://doi.org/10.2172/5839276
Morton, R A, Ewing, T E, Kaiser, W R, and Finley, R J. Tue . "Consolidation of geologic studies of geopressured geothermal resources in Texas. 1982 annual report". United States. https://doi.org/10.2172/5839276. https://www.osti.gov/servlets/purl/5839276.
@article{osti_5839276,
title = {Consolidation of geologic studies of geopressured geothermal resources in Texas. 1982 annual report},
author = {Morton, R A and Ewing, T E and Kaiser, W R and Finley, R J},
abstractNote = {Detailed structural mapping at several horizons in selected study areas within the Frio growth-fault trend demonstrates a pronounced variability in structural style. At Sarita in South Texas, shale mobilization produced one or more shale ridges, one of which localized a low-angle growth fault trapping a wedge of deltaic sediments. At Corpus Christi, shale mobilization produced a series of large growth faults, shale-cored domed anticlines, and shale-withdrawal basins, which become progressively younger basinward. At Blessing, major growth faults trapped sands of the Greta/Carancahua barrier system with little progradation. At Pleasant Bayou, a major early growth-fault pattern was overprinted by later salt tectonics - the intrusion of Danbury Dome and the development of a salt-withdrawal basin. At Port Arthur, low-displacement, long-lived faults formed on a sand-poor shelf margin contemporaneously with broad salt uplifts and basins. Variability in styles is related to the nature and extent of Frio sedimentation and shelf-margin progradation and to the presence or absence of salt. Structural styles that are conducive to the development of large geothermal reservoirs include blocks between widely spaced growth faults having dip reversal, salt-withdrawal basins, and shale-withdrawal basins. These styles are widespread on the Texas Gulf Coast. However, actually finding a large reservoir depends on demonstrating the existence of sufficient sandstone with adequate quality to support geopressured geothermal energy production.},
doi = {10.2172/5839276},
url = {https://www.osti.gov/biblio/5839276}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {3}
}