1.Baiyinchagan depression is part of downwarping faulted rift basin developed on XingmengHercynian multicycle and collision fold basement in late Mesozoic.

1.白凹陷为兴蒙海西期多旋回、软碰撞褶皱基底晚中生代发育起来的断-坳型裂谷盆地的次单元。