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锆石ＳＨＲＩＭＰ定年研究表明，祁连南缘柴达木山花岗岩与超高压榴辉岩是构造演化过程中不同阶段形成的，即加里东早期，该区存在洋壳－陆壳碰撞，形成榴辉岩；加里东晚期，存在陆壳－陆壳的碰撞，形成了该花岗岩体．该岩体的ＳＨＲＩＭＰ年龄为４４６Ｍａ．
The SHRIMP dating of zircon shows that the Qaidam granites and ultrahigh-pressure eclogite in the southern margin of Qilian are formed at different stages of tectonic evolution. In the early period of Caledonian, there were the collision of oceanic crust and continental crust to form eclogite. In the late Eastern China, there was the collision of the continental crust and the continental crust, forming the granite body. The rock body SHRIMP age 446Ma.