会理县中厂矿区铜矿地质特征及成因分析

Geological characteristics and genesis analysis of copper deposits in the Zhongchang mining area of Huili County

矿区分布在康滇地轴中南段米易穹断束的中段。该区有着较为复杂的构造运动,褶皱构造与断裂构造在区域上较为发育。硅化、白云石化等围岩蚀变和铜矿有着紧密的关联性。碳酸盐岩系受变质作用因素影响形成的白云石大理岩层间滑动带是赋存矿体的主要部位,并对矿体产出起着明显的控制作用。区内构造与该矿富集成矿关系紧密,矿体主要在含矿层下部富集。文中结合实践对中厂矿区铜矿地质特征进行系统论述,并分析其矿床成因,以期能对该区找矿工作提供一些参考作用。

The mining area is located in the middle section of the Miyi Qiong fault bundle in the central southern section of the Kangdian axis.This area has a relatively complex tectonic movement,with folded and fractured structures developed in the region.The alteration of surrounding rocks such as silicification and dolomitization is closely related to copper deposits.The interlayer sliding zone of dolomite and marble formed by metamorphic factors in carbonate rock series is the main location for the occurrence of ore bodies and plays a significant controlling role in their production.The structure within the area is closely related to the enrichment of the ore deposit,and the ore body is mainly enriched in the lower part of the ore bearing layer.The article systematically discusses the geological characteristics of copper deposits in the Zhongchang mining area based on practice,and analyzes their genesis,in order to provide some reference for the exploration work in the area.