Tracking Mud (image) The Earth Institute at Columbia University Share Print E-Mail Caption Scientists on a research cruise in the central equatorial Pacific collected seafloor sediments showing that nutrient cycling in one part of the ocean may affect another region far away. Here, a researcher from Georgia Institute of Technology checks out newly retrieved mud. 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.