Paleotectonic Investigation by Successive 3D Seismic Horizon Flattening in the Pennsylvanian Interval of Western Osage County, Oklahoma

<p>3D seismic and well log data in Western Osage County, Oklahoma, are utilized to evaluate possible intracratonic tectonic signals present in the subsurface stratigraphy of the Cherokee Platform as a result of the regional tectonic events of Pennsylvanian age. These events include: the Wichita, Ouachita, and Arbuckle orogenies, the Nemaha and Ozark Uplifts, and the Southeast Oklahoma Aulacogen. Horizon flattening within 3D seismic volumes allows for identification of paleotectonic structures and syntectonic depositional features, which may be related to the collateral effects of these orogenies on the Cherokee Platform. Identified structures were assigned geologic ages using precision synthetic seismograms tuned to the Pennsylvanian interval in a 45 square mile 3D seismic data volume. Paleostructure maps and isochron, or time-thickness, maps created in conjunction with the flattened horizons highlight contemporaneous structural features that may be related to regional orogenic events. Paleostructure maps also help determine the sedimentological processes occurring at the time of deposition. This investigation will add knowledge to the tectonic and depositional evolution of the Cherokee Platform and the surrounding basins, which have been prolific hydrocarbon-producing regions for over a century. </p>

Name thesis:degree_name

Master of Science in Geology (MS)

Level thesis:degree_level

Thesis

Year dc:date.available

2020

Author dc:creator

• McCabe, Douglas Cooper

Advisor dc:contributor.advisor

• Liner, Christopher L.

Contributors dc:contributor

• McGilvery, T.A. "Mac"
• Dumond, Gregory

• seismic surveys
• tectonic signals
• tectonic events
• cratonic sedimentary processes
• Geology
• Geophysics and Seismology
• Stratigraphy

Repository record dc:identifier

https://scholarworks.uark.edu/etd/3889

OAI identifier oai:identifier

oai:scholarworks.uark.edu:etd-5439