Drilling cores (IMAGE) Uppsala University Caption Karatsolis et al. studied drill cores from seafloor sediments recovered by the International Ocean Discovery Program (IODP), including IODP Expedition 356, in which sediment archives were drilled on the northwestern Australian shelf. Credit J. Henderiks Usage Restrictions May only be published in connection to reports about the research by Karatsolis et al. or after permission from photographer. 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.