Sediment Sourcing Figure (image) University of Texas at Austin Share Print E-Mail 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 et al. Usage Restrictions Include photo credit. Share Print E-Mail 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.