SEPTEMBER 2022 LUNCHEON MEETING
Kelly E. Hattori
presents
Depositional systems of the James Limestone in East Texas:
Global, regional, and local context for a complex formation
11:30 AM Wednesday, September 21, 2022
at Hollytree Country Club
6700 Hollytree Dr
Tyler, TX 75703
Cost: $25
Abstract
The Early Cretaceous (Aptian) James Limestone is an enigmatic formation, recording a period of suppressed carbonate deposition during an overall major carbonate platform-building interval of time. Although the formation is largely characterized by muddy, low-energy, deeper-water sediments with an abundance of odd oncoids, it more well-known for its sparsely-distributed unusual (and spectacular) coral reefs and rudist biostromes, which are prized for excellent oil and gas production in fields such as the giant Fairway Field (410 MMBO). This talk will discuss the overall architecture and common facies of the James Limestone in Texas and Louisiana, and will investigate how a multitude of overlapping factors, including a global ocean anoxic event (OAE1A) and local structural activity (e.g. uplift, halokinesis), drove deposition of this unusual and important formation.
Biography
Kelly E. Hattori
Carbonate Geologist
State of Texas Advanced Resource Recovery (STARR) Program
Bureau of Economic GeologyThe University of Texas at Austin
Kelly Hattori is a carbonate sedimentologist and stratigrapher in the State of Texas Advanced Resource Recovery (STARR) research program at the Bureau of Economic Geology. She holds dual Marine Biology and Geology bachelor degrees from the University of North Carolina at Wilmington, and a MSc in Geosciences from the University of Texas at Austin. Her research career is focused on carbonate stratigraphy and sedimentology of Paleozoic to Mesozoic formations in Texas. In particular, she works on reconstructing depositional systems and assessing the interaction of local, regional, and global controls on patterns of carbonate deposition; special interests include mixed carbonate-siliciclastic systems, reefs, and halokinetically-impacted carbonate systems.