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歙县金谷山铜矿床位于扬子陆块,江南古隆起带北东倾伏端,宁国墩—五城边界断裂从矿区南侧通过。铜矿区位于后南华纪临溪向斜(盆地)北西翼,沿滑脱断层侵入晚侏罗世第一阶段含矿斜长花岗斑岩。矿体产出在“混合岩化”带(包括角砾岩筒)内,主要矿物有黄铜矿、黄铁矿、辉钼矿。矿床发育隐爆角砾岩,为斑岩型铜矿床。燕山时期,江南陆内造山带形成于壳―幔相互作用等深部过程,随着宁国墩—五城深大断裂伸展、冲断等转变,岩石圈减薄发生减压熔融,基性岩浆底侵在壳幔边界与地壳局部熔融产生中酸性同熔型岩浆,铜在岩浆热液中富集,最终成矿。
The Jijuguan gold deposit in Yijian County is located in the Yangtze block and the northerly subduction of the Jiangnan paleo-uplift. The boundary fault of Ningguodun-Wucheng County passes through the south side of the mining area. The copper deposit is located in the north west wing of the Linnan syncline (basin) of the Hou Nanhua Jilu and intruded into the ore-bearing plagiogranite porphyry in the first stage of the Late Jurassic along the strike-slip fault. Orebody is produced in “mixed rock” belt (including breccia tube), the main minerals are chalcopyrite, pyrite, molybdenite. Development of cryptoexplosive breccia deposits, porphyry copper deposits. During the Yanshanian period, the Jiangnan intracontinental orogenic belt formed in deep processes such as crust-mantle interaction. With the transformation of the Ningguodun-Wucheng deep fault rupture and thrusting, the lithosphere thinning occurred in the process of decompression and melting, In the crust and mantle boundaries and the local melting of the crust to produce moderate acid melting type magma, copper enrichment in the magmatic hydrothermal, the final mineralization.