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1金川铜镍矿Ⅱ矿区地质概况金川Ⅱ矿区是金川铜镍矿床最主要的采矿区。区内出露的地层比较简单,主要为前震旦纪白家子组中-深变质岩。主要岩石有条带状混合岩、绿泥石化大理岩、角砾混合岩夹大理岩、含榴二云母片麻岩。岩层倾向南西。区内褶皱形式简单。断裂构造发育,大小不一,产状多样,具多期活动特点,这些断裂为区内巨大铜镍矿床的成矿物质来源提供了重要的通道和富集场所。区内出露的火成岩以超基性岩为主,为含矿岩体,具低阻高磁的特征。
1 Geological Survey of Jinchuan Copper-Nickel Mine Ⅱ The Jinchuan Ⅱ mine is the most important mining area of Jinchuan copper-nickel deposit. Strata exposed in the area is relatively simple, mainly for the former Sinian Baijiazi group - deep metamorphic rocks. The main rocks are banded mixed rocks, chloritized marble, brecciated mixed rock folder marble, garnet-mica gneiss. Southwest rock formation. The form of folds in the area is simple. The fault structure is developed with different sizes and various occurrences and features of multi-period activities. These faults provide important channels and enrichment sites for the ore-forming materials of the huge copper-nickel deposits in the area. The igneous rocks exposed in the area are dominated by ultrabasic rocks and are ore-bearing rock masses with low resistivity and high magnetism.