Pointing the Way (IMAGE) University of Oregon Caption University of Oregon geologist Douglas Toomey shows where his team has been studying volcanic plumbing and mantle-plate interactions on the Pacific Ocean floor. Credit Photo by Jim Barlow Usage Restrictions None 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.