Under the action of "Emei mantle plume" and the extension of "Emei Taphrogeny",the Tarim-Yangtze Paleocontinent diverged and separated.

后经"峨嵋"的作用和二叠纪"峨嵋裂运动"的拉张,"塔里木—扬子古大陆"裂解、分离。