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本文通过对金川铜镍硫化物矿床各类矿石中伴生元素含量进行初步定量,结合各类金属矿物的产出特征及形态,讨论并分析了地质特征与成矿模式。发现金川铜镍矿体是在大陆裂谷发展前期拉张环境中成岩成矿,并随龙首山推覆构造转移到现今位置,并且发现深部熔离贯入作用是主要成矿机制,含矿岩浆的有序侵位显示岩浆在深部岩浆房停歇过程曾发生熔离分异,形成岩浆、含矿岩浆、富矿岩浆和矿浆分层结构,而且小岩体成大矿,剩余的含矿岩浆多次贯入同一空间成岩、成矿,区域存在其它超基性、基性岩体岩群或岩流。
Based on the preliminary quantitative analysis of the associated elements in various ores in the Jinchuan copper-nickel sulfide deposit, the geological characteristics and metallogenic model are discussed and analyzed according to the output characteristics and morphology of various metallogenic minerals. It is found that the Jinchuan copper-nickel ore body was diagenetic and mineralized during the pre-continental rift development and was transferred to the current location with the Longshoushan nappe structure. It is also found that the deep melt-fission penetration is the main metallogenic mechanism. The magmatic sequence emplacement shows that the magma had melted and separated during the pause in the deep magma chamber, forming the magma, ore-bearing magma, ore-rich magma and ore pulp stratification structure, and the small rock mass became a large ore with the remaining ore-bearing magma In the same space, diagenesis and mineralization occur, and other ultrabasic and basic rock masses or rock flows exist in the area.