Geological and paleomagnetic evidence indicates that South China broke up into the Yangtze plate and Cathaysian plate in or before the middle-late Mesoproterozoic. The two plates have characteristics of different styles of movement.

• 地质学及古地磁学证据表明 ,中元古代中后期或之前其被裂解为扬子板块与华夏板块 ,各板块具有不同的运动特征。