Time: 11:30 am Virtual Social Icebreaker, Noon Speaker Presentation

Speakers: Dr. William Ambrose, BEG – STARR Program

Title: Deepwater and Valley-Fill Systems in the Cisco Group, Eastern Shelf of the Permian Basin

Abstract: Coastal-plain, incised-valley, shelf, and shelf-edge depositional facies in the Virgilian-Wolfcampian Cisco Group in a ~12,000 mi2 (~31,000 km2) area in the southern part of the Eastern Shelf of the Permian Basin record a significantly increased sediment supply coupled with rejuvenation of the Ouachita Fold Belt.  Extensive lower Cisco (Virgilian) fluvial-deltaic systems built out westward across the Eastern Shelf and the Canyon carbonate deposits, producing a progradational succession of regionally interstratified and cyclic delta and carbonate shelf systems deposited throughout the Virgilian and Wolfcampian Series. The Cisco section consists of a cyclic series of thirteen mudrock, limestone, and sandstone facies (top of the Home Creek to top Coleman Junction Limestone).  It forms a progradational succession from the Eastern…