Depocenters such as the Taibei Sag, Toksun Sag, Hami Depression and Aiwergou Depression generally occurred in places where two subsiding zones intersected.

• 一般而言，两组凹陷带相交部位构成次级沉积中心，如台北凹陷西部、托克逊凹陷西部、哈密坳陷和艾维尔沟坳陷。