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野马南山是古祁连山的一部分,它在地质历史中长期处于隆起地带,以往称中祁连山前寒武纪褶皱带。褶皱带内主要分布一套中深变质岩系和一套浅变质岩系,过去认为分属下元古界野马南山群和上元古界。1978年,我们在研究中祁连山西段上元古界长城系党河群下界时,发现党河群与野马南山群呈断层接触,二者都是以绿片岩相为主的变质岩系。局部变质较浅,由千枚岩、千枚状板岩、板岩组成。浅变质岩系与中深变质岩系呈相变关系。上述现象,使我
Wild Horse Nanshan is part of the ancient Qilian Mountains, it is in the geological history of the uplift in the long term, formerly known as the Precambrian Central Qilian fold belt. In the fold belt, a set of middle-deep metamorphic rocks and a set of super-metamorphic rocks are mainly distributed in the past, which belonged to the Lower Proterozoic Mustang Nanshan Group and the Upper Proterozoic. In 1978, when we studied the lower member of the Great Paleoemote Great Wall of the Upper Paleoproterozoic in the Qilian Mountains, we found that the Danghe Group and the Mustang Nanshan Group are in fault contact, both of which are metamorphic rocks dominated by greenschist facies. Local metamorphism shallow, composed of phyllite, phyllitic slate, slate. The relationship between the shallow metamorphic rocks and the middle-deep metamorphic rocks is in a phase transition relationship. The above phenomenon makes me