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秦岭群的岩性主要由泥质-长英质变质岩、基性变质岩和钙质变质岩三部分组成。泥质-长英质变质岩占据大部分,是秦岭群的主体。与产铀伟晶岩关系密切的泥质-长英质变质岩具有硅高、碱高、钾大于钠的特点,具中等铀含量。东秦岭花岗岩可分为Ⅰ型花岗岩和S型花岗岩两种成因类型。区域上分布的三种类型伟晶岩是既有联系又有区别的重熔岩浆统一演化系列,它们是秦岭群部分熔融的产物。产铀伟晶岩和伟晶岩型铀矿是一种新的产铀地
The lithology of the Qinling Group is mainly composed of three parts, ie, mudstone-cristobalite, basic metamorphic rock and calcareous metamorphic rock. Mud - Chang Ying-quality metamorphic rocks occupy most of the main body of the Qinling Group. Pegmatite-feldspathic metamorphic rocks, which are closely related to pegmatite, have the characteristics of high silicon, high alkali, more potassium than sodium and medium uranium content. The East Qinling granite can be divided into two types of genetic type Ⅰ granite and S-type granite. The three types of pegmatites distributed in the area are both connected and distinct series of remelted magmas, which are the partial melting products of the Qinling Group. Pegmatite and pegmatite uranium production is a new uranium production