Collecting sediment samples (IMAGE) Woods Hole Oceanographic Institution Caption WHOI geologist Andrew Ashton (left) and MIT-WHOI Joint Program graduate and lead author James Bramante collect sediment samples on a reef flat near Jaluit Atoll's northwest blue hole. Credit (Courtesy of James Bramante, ©Woods Hole Oceanographic Institution) Usage Restrictions with credit 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.