Sediment Sourcing Figure (IMAGE) University of Texas at Austin Caption Scenarios for sediment supply to the western Gulf of Mexico in the Miocene (A) and Pleistocene (B.) Sediment-source area for Miocene is shown in green; Laurentide and Cordilleran ice sheets and Rocky Mountain glaciers are in blue. Open circles are Deep Sea Drilling Project (DSDP) study sites. Credit Hessler <em>et al.</em> Usage Restrictions Include photo credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.