Simulation of Earth interior evolution (VIDEO) University of Utah This video is under embargo. Please login to access this video. Caption A simulation of the evolution of the Earth's interior over time, showing the thermal (bottom), chemical (middle) and thermochemical evolution under the simulated conditions. The bottom of each field is the core-mantle boundary. Ultra-low velocity zones can be seen in the top and middle fields, forming at the toes of the light blue zones. Credit Surya Pachhai Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.