Jung-Fu Lin, University of Texas at Austin (image) University of Texas at Austin Share Print E-Mail Caption This is professor Jung-Fu Lin holding a diamond anvil, a device used in the study to subject rock samples to intense pressures found in the Earth's core. Credit The University of Texas at Austin Jackson School of Geosciences. Usage Restrictions Credit source 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.