In the Late Mesozoic, the strong deformation of Qilian structural domain caused obduction, faulting, and upwelling of hot fluids from lower earth crust and mantle for three times in western Ordos.

• 在中生代晚期，祁连构造域的挤压作用导致盆地西缘发生强烈逆冲推覆、断裂活动及三次大规模的深部流体上涌。