Consolidation of geologic studies of geopressured geothermal resources in Texas. 1982 annual report
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.
- Research Organization:
- Texas Univ., Austin (USA). Bureau of Economic Geology
- DOE Contract Number:
- AC08-79ET27111
- OSTI ID:
- 5839276
- Report Number(s):
- DOE/ET/27111-10; ON: DE84000481
- Country of Publication:
- United States
- Language:
- English
Similar Records
Structural Styles of the Wilcox and Frio Growth-Fault Trends in Texas: Constraints on Geopressured Reservoirs
Structural evolution of three geopressured-geothermal areas in the Texas Gulf Coast
Structural styles of the Wilcox and Frio growth-fault trends in Texas: Constraints on geopressured reservoirs
Technical Report
·
Tue Dec 31 23:00:00 EST 1985
·
OSTI ID:6730007
Structural evolution of three geopressured-geothermal areas in the Texas Gulf Coast
Conference
·
Wed Dec 31 23:00:00 EST 1980
·
OSTI ID:6206598
Structural styles of the Wilcox and Frio growth-fault trends in Texas: Constraints on geopressured reservoirs
Book
·
Tue Dec 31 23:00:00 EST 1985
·
OSTI ID:5210643