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金川铜镍矿床位于华北陆块西南边缘的龙首山隆起中部,是世界上著名的超大型Ni-Cu-PGE岩浆硫化物矿床,镍资源储量居世界第三,矿化率大于47.8%。岩体呈小角度侵位于古元古代龙首山岩群白家嘴子组中,为一复式岩体。岩体长约6.5 km,宽0.02~0.527 km,出露面积约1.34 km2,呈NW向不规则透镜状,后期NE向的断裂将岩体划分为几段,由西向东依次为Ⅲ、Ⅰ、Ⅱ、Ⅳ4个矿区。岩相以二辉橄榄岩相
The Jinchuan copper-nickel deposit is located in the central part of the Longshanshan uplift on the southwestern margin of the North China block. It is the world famous super-large Ni-Cu-PGE magmatic sulfide deposit, ranking third in the world for its reserves of nickel resources and its mineralization rate of more than 47.8%. The intrusion of the rock body at a small angle is located in the Baijiazuizi Formation of the Longsanshan Rock Group in the Paleoproterozoic, which is a complex rock mass. The rock mass is about 6.5 km in length and 0.02-0.527 km in width with an exposed area of about 1.34 km 2. The rock mass is irregularly NW-shaped. The post-NE-trending fault divides the rock mass into several sections from west to east in order of Ⅲ, Ⅰ, Ⅱ, Ⅳ 4 mining area. Facies to lherzolite facies