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祁连山横亘于柴达木盆地之北、河西走廊之南,它由若干北西西向平行排列的线形山脉及其间的内陆山间盆地组成。志留纪末这里的祁连运动使厚2万余米下古生界的槽型沉积隆起,并产生了一系列北西西向的紧密线型褶皱和大规模的逆冲及推覆构造,与此同时还伴有强烈的岩浆活动与不同程度的变质作用。尔后长期处于剥蚀夷平之中。中生代,由于断块之间的差异
Qilian Mountains lie in the north of the Qaidam Basin and south of the Hexi Corridor. It consists of a number of linear mountains arranged in parallel from North West to West and the inland mountain basins between them. The Qilian movement at the end of Silurian made the Paleozoic trough sedimentary uplifted more than 20,000 meters thick and produced a series of NW trending tight linear folds and massive thrust and nappe structures. At the same time also accompanied by a strong magmatic activity and varying degrees of metamorphism. After a long period of denudation in the flat. Mesozoic, due to the difference between broken blocks