Undersea rocks (IMAGE) University of Delaware Caption Jessica Warren, University of Delaware associate professor of geological sciences, aboard the research vessel Atlantis on a scientific mission to collect geological samples from the East Pacific Rise, an undersea ocean ridge where huge slabs of Earth’s crust are moving apart. Credit Photos by Thomas Morrow Usage Restrictions No restrictions. License Public Domain 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.