Initial Collision Time (IMAGE) Science China Press Caption Definition of the initial collision time and reconstructed cross-section of the crusts during the earliest stage of the India-Asian collision. (Left: A sketch illustrating the definitions of initial collision time when oceanic lithosphere disappeared between the two continents, and the edge of the lower-plate continental margin reached the trench and started to subduct below the overlying plate; Right: Reconstructed cross-section of the crusts based on the stratigraphic record from southern Tibet during the earliest stage of the India-Asian collision). Credit ©Science China Press 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.