Tectonic Plate Motion (arrows) and Viscosity Arising from Global Mantle Flow Simulation (image) California Institute of Technology Share Print E-Mail Caption Plate boundaries, which can be seen as narrow red lines are resolved using an adaptively refined mesh with 1km local resolution. Shown are the Pacific and the Australian tectonic plates and the New Hebrides and Tonga microplates. Credit Georg Stadler, Institute for Computational Engineering & Sciences, UT Austin Usage Restrictions None 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.