Preparing a sediment core (IMAGE) Woods Hole Oceanographic Institution Caption Chad Ostrander, lead author of the study, preparing a short sediment core collected from the East Gotland Basin during the investigation. Credit (Photo credit: Colleen Hansel, ©Woods Hole Oceanographic Institution) Usage Restrictions none License Original 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.