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郭米寺-尕大板铜多金属矿床位于北祁连山加里东板块聚敛部位的俯冲杂岩带内,属北祁连成矿带走廊南山南坡成矿亚带(任有祥等,2001)。区内出露地层有中寒武统、石炭系、侏罗系、白垩系和第四系。中寒武统黑茨沟群为主要的赋矿地层,岩性为基性-中性-酸性熔岩、火山碎屑岩和潜火山岩。区内构造线呈北西西向,褶皱形态复杂,火山机构发育。区内中寒武世海相火山岩呈狭长带状沿NW-SE向分布。铜多金属矿床多产于火山活动旋回的上部酸性凝灰岩中,具明显的层控特点(曹德志
The Kuomei-Gaadian copper polymetallic deposit is located in the subducted complex belt at the converging site of the Gallong plate in the North Qilian Mountains. It belongs to the southern slope of the southern slope of the North Qilian metallogenic belt (Ren Youxiang et al., 2001). The exposed strata in the area include Middle Cambrian, Carboniferous, Jurassic, Cretaceous and Quaternary. The middle Cambrian Heizigou group is the main ore-hosting strata. The lithology is basic-neutral-acidic lava, pyroclastic and latent volcanic rocks. The tectonic line in the area is NWW, with complicated folds and volcanic structures. The Middle Cambrian marine volcanic rocks are elongated NW-SE distribution. Copper polymetallic deposits are prolific in the upper acidic tuffs of volcanic activity and have obvious stratification control characteristics (Cao Dezhi