Lowell Stott and Sediment Core (IMAGE) University of Southern California Caption Lowell Stott, professor of earth sciences at the University of Southern California, examines a sediment core. Credit Dietmar Quistorf Usage Restrictions None 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.