Global Melt in the Asthenosphere (IMAGE) University of Texas at Austin Caption A diagram of the asthenosphere, which aids plate tectonics, where researchers at the UT Austin Jackson School of Geosciences say they detected a global layer of partial melt (shown in speckled red). Credit Junlin Hua/UT Jackson School of Geosciences Usage Restrictions Please use credit. License Original 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.