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康滇地轴前震旦纪碳酸盐岩层中铁矿床(点)分布很广,过去认为主要是沉积变质、岩浆热液成因 通过近几年的研究,作者认为是由于晋宁运动使康滇地区前震旦纪地槽褶皱隆起,在岩溶化作用过程中,震旦系含铁较高的碳酸盐岩(含铁1~11%)分解,铁质析出,在岩溶洼地、洞穴峰林之间及被岩溶化作用扩大的构造裂隙中聚集成矿。可分为沉积型、充填型、堆积型
The distribution of iron deposits (points) in the pre-Sinian carbonate rocks in the Kangdian area is very broad. In the past, the sedimentary metamorphism was mainly considered as sedimentary metamorphism. The causes of magmatic hydrothermal fluids have been studied in recent years. The authors believe that the Jinian movement caused the former Sinian During the process of karstification, the carbonate rocks (1 ~ 11% of iron content) with high iron content in the Sinian are decomposed and iron precipitates. In the karst depressions, Karst fissures in the expanding structural fissures accumulate mineralization. Can be divided into deposition type, filling type, accumulation type