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Title: Structural styles: Arkoma and Ardmore basins and Arbuckle Mountains

Abstract

In the Ouachita thrust belt, thin-skinned deformation has telescoped the sedimentary section along major thrust systems. In the frontal Ouachitas, Ti Valley thrust places Ordovician and Devonian rocks over Pennsylvanian rocks. Exploration for hydrocarbons on this and older thrust sheets relies on fractured Bigfork Chert and Arkansas Novaulite for reservoirs. Imbricate thrusting associated with the Choctaw thrust has produced hydrocarbon traps in the allochthonous Spiro Formation, as at Wilburton field. Thin-skinned Ouachita thrusting was superimposed over normal faults associated with early rifting, which probably localized the position of many Pennsylvanian faults. Due to northward-advancing thrust sheets, faults were reactivated by tectonic and sedimentary loading of the previously weakened foreland crust. Some of these faults may also have been reactivated as high-angle reverse faults by Ouachita compression. The discovery of commercial volumes of gas in the Pennsylvanian Spiro and Ordovician Arbuckle Group in these autochthonous subthrust fault blocks has initiated a major drilling program. Basement-involved compressional structures occur in the Ardmore basin-Arbuckle Mountains area southwest of the Ouachita thrust belt. Controversy surrounds interpretation of major faults as wrench type, with various amounts of strike-slip, or as reverse dip-slip, with large amounts of shortening. Hydrocarbons are trapped in a variety of individualmore » structures, and include (1) large doubly-plunging anticlines exposed at the surface, (2) deep-basin structures having no surface expression, (3) large anticlines developed under, or immediately in front of, mountain overhangs, (4) faulted anticlines that subcrop the Pennsylvanian sediments on the hanging walls of buried mountain fronts, and (5) overturned beds in the footwall of major reverse faults.« less

Authors:
 [1]
  1. Baylor Univ., Waco, TX (USA)
Publication Date:
OSTI Identifier:
5901239
Resource Type:
Journal Article
Journal Name:
AAPG Bulletin (American Association of Petroleum Geologists); (USA)
Additional Journal Information:
Journal Volume: 74:11; Journal ID: ISSN 0149-1423
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 58 GEOSCIENCES; ARKANSAS; NATURAL GAS DEPOSITS; PETROLEUM DEPOSITS; SEDIMENTARY BASINS; EXPLORATION; ANTICLINES; CARBONIFEROUS PERIOD; CONTINENTAL CRUST; DEVONIAN PERIOD; GEOLOGIC FAULTS; GEOLOGIC FORMATIONS; GEOLOGIC TRAPS; ORDOVICIAN PERIOD; PRODUCTION; RESERVOIR ROCK; SEDIMENTS; TECTONICS; WELL DRILLING; DRILLING; EARTH CRUST; FEDERAL REGION VI; GEOLOGIC AGES; GEOLOGIC DEPOSITS; GEOLOGIC FRACTURES; GEOLOGIC STRUCTURES; MINERAL RESOURCES; NORTH AMERICA; PALEOZOIC ERA; RESOURCES; USA; 020200* - Petroleum- Reserves, Geology, & Exploration; 580000 - Geosciences

Citation Formats

Brown, W G. Structural styles: Arkoma and Ardmore basins and Arbuckle Mountains. United States: N. p., 1990. Web.
Brown, W G. Structural styles: Arkoma and Ardmore basins and Arbuckle Mountains. United States.
Brown, W G. Thu . "Structural styles: Arkoma and Ardmore basins and Arbuckle Mountains". United States.
@article{osti_5901239,
title = {Structural styles: Arkoma and Ardmore basins and Arbuckle Mountains},
author = {Brown, W G},
abstractNote = {In the Ouachita thrust belt, thin-skinned deformation has telescoped the sedimentary section along major thrust systems. In the frontal Ouachitas, Ti Valley thrust places Ordovician and Devonian rocks over Pennsylvanian rocks. Exploration for hydrocarbons on this and older thrust sheets relies on fractured Bigfork Chert and Arkansas Novaulite for reservoirs. Imbricate thrusting associated with the Choctaw thrust has produced hydrocarbon traps in the allochthonous Spiro Formation, as at Wilburton field. Thin-skinned Ouachita thrusting was superimposed over normal faults associated with early rifting, which probably localized the position of many Pennsylvanian faults. Due to northward-advancing thrust sheets, faults were reactivated by tectonic and sedimentary loading of the previously weakened foreland crust. Some of these faults may also have been reactivated as high-angle reverse faults by Ouachita compression. The discovery of commercial volumes of gas in the Pennsylvanian Spiro and Ordovician Arbuckle Group in these autochthonous subthrust fault blocks has initiated a major drilling program. Basement-involved compressional structures occur in the Ardmore basin-Arbuckle Mountains area southwest of the Ouachita thrust belt. Controversy surrounds interpretation of major faults as wrench type, with various amounts of strike-slip, or as reverse dip-slip, with large amounts of shortening. Hydrocarbons are trapped in a variety of individual structures, and include (1) large doubly-plunging anticlines exposed at the surface, (2) deep-basin structures having no surface expression, (3) large anticlines developed under, or immediately in front of, mountain overhangs, (4) faulted anticlines that subcrop the Pennsylvanian sediments on the hanging walls of buried mountain fronts, and (5) overturned beds in the footwall of major reverse faults.},
doi = {},
journal = {AAPG Bulletin (American Association of Petroleum Geologists); (USA)},
issn = {0149-1423},
number = ,
volume = 74:11,
place = {United States},
year = {1990},
month = {11}
}