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“黎溪式”铜矿床赋存在康滇地轴中段西缘的前震旦系会理群通安组中的白云石大理岩中。矿床的岩相控制特征十分显著,石英白云石大理岩为本成矿带的主要控(储)矿岩石,白云岩或白云石大理岩的含铜量占康滇地轴主要成矿区铜总量的46.7％。 长期以来,对“黎溪式”铜矿的成因认识①与中基性岩浆有关的中温热液矿床,构造富集成矿;②同生沉积变质矿床,地层控矿。笔者认为两种成因的论据不够充分并与客观地质现象及室内分析鉴定资料大都不相吻合。
The “Lixi-style” copper deposit is deposited in the dolomite marble of the Tong’an Formation of the Pre-Sinian Climatic Group in the western margin of the central axis of the Kang-Dian axis. The lithofacies control characteristics of the deposit are very significant. The quartz dolomite marble is the main controlling (deposit) rock of this metallogenic belt. The copper content of dolomite or dolomite marble accounts for the total copper 46.7%. For a long time, the understanding of the genesis of the “Lixi-style” copper mine ①Metal-medium magmatic-related mesothermal hydrothermal deposits have been constructed for enrichment of metallogenic deposits; ②The syngenetic sedimentary metamorphic deposits are controlled by strata. The author believes that the arguments of the two causes are not sufficient and most of them are inconsistent with the objective geological phenomena and the identification data of indoor analysis.