The basement outcrops in South Qinling, Mianxian Lueyang Yangxian and north Dabashan areas are distributed in some sporadic and is.

• 依据陕南秦岭造山带区域地质及重力资料,按是否露出地表将前寒武纪基底划分为出露基底和隐伏基底两种类型。