Drilling Core Samples (IMAGE) Woods Hole Oceanographic Institution Caption Woods Hole Oceanographic Institution geologist Liviu Giosan (left) Emil Vespremeanu (in blue) and Ionutz Ovejanu (yellow) of the University of Bucharest use an auger to bore holes in the Danube Delta to reconstruct its growth history. Credit Liviu Giosan Usage Restrictions With proper 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.