Cutting Core (image) The Earth Institute at Columbia University Share Print E-Mail Caption Aboard the research vessel, Steve Hovan of the Indiana University of Pennsylvania and Allison Jacobel of Lamont-Doherty Earth Observatory cut a sediment core into sections. Credit Pratigya Polissar/Lamont-Doherty Earth Observatory Usage Restrictions Credit must be given. 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.