The Hexi area is located at the tectonic convergence of the North China block and north Qilian Caledonian orogen and Alex block, and is characterized by multiple tectonism that resulted in very rich and complicated geological phenomena.

• 贺西地区处于北祁连加里东褶皱带、阿拉善地块与鄂尔多斯地块的交汇处,多期构造活动造就了本区复杂的构造和成盆历史。