Full Title: Exploring The K/Pg Boundary in the Gulf of Mexico at the Brazos River Outcrops and the Gulf Coast Core Repository
Endorsed by: GSA’s Planetary Geology, Geochronology, Mineralogy, Geochemistry, Petrology, and Volcanology, Continental Scientific Drilling Divisions
Led by: Christopher Lowery, Sean P.S. Gulick, Pim Kaskes, James Witts
Date: Sat. 18 Oct. 2025
Time: 6 a.m.-7 p.m.
CEUs: 0.8
We propose to explore K/Pg boundary deposits across the Gulf of Mexico, with stops at the outcrops along the Brazos River near Rosebud, TX and the IODP Gulf Coast Repository (GCR) in College Station, TX. Brazos River outcrops contain cross-stratified sandstone likely formed by a tsunami, interbedded with layers of impact spherules and overlain by an ~3 m succession of early Paleocene marine sediments recording the recovery of life. Cores at the GCR from the Chicxulub crater, Gulf of Mexico and Caribbean record impact processes and environmental changes at different distances from the crater. Cost includes transportation (bus), breakfast, lunch, snacks, and water.
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For additional information, please contact Rebecca Taormina, rtaormina@geosociety.org, GSA Field Trip and Short Program Coordinator.
Product Code: FT25CN408
Product Category: FTRIP