The AIPG-TX Webinar – February 17, 2026: Relationship Between East Texas Deltas and South Texas Eagle Ford Unconventional Production at the San Marcos Arc
Abstract Examination of cores from the Sabine Uplift, East Texas Basin, and outcrops and near-surface cores taken by the USGS from the north-central Texas outcrop belt identified four separate siliciclastic depositional systems during the Cenomanian-Turonian. Deposition during the lower Cenomanian Maness system was focused on the western margin of the Sabine Uplift, with a delta identified in Rusk County. The middle Cenomanian Woodbine system is found in outcrop on the western side of the DFW Metroplex and is thought to be the source of the sandstone reservoirs in the giant East Texas Field. Following the major sea-level transgression that [...]