川南沉积型铜矿床地质特征及找矿方向

Geological Characteristics and Prospecting Direction of Sedimentary Copper Deposits in South Sichuan

通过对川南沉积型铜矿的调查以及采样分析,初步查明了该区矿床类型,征和矿床成因。结果表明,川南沉积型铜矿主要产于侏罗系上统蓬莱镇组砂岩中,砂岩在延伸方向上常常发生尖灭。矿石矿物以辉铜矿为主(1%~5%),次为孔雀石(<2%),该沉积型铜矿在川南地区广泛分布,目前没有进行规模性勘查和开发,有待进一步深入研究。

Based on the investigation and sampling analysis of sedimentary copper deposits in south Sichuan,the deposit types,characteristics of ore bodies and genesis in this area have been preliminarily ascertained.The results show that the sedimentary copper deposits in south Sichuan mainly occur in the Upper Jurassic Penglai Formation sandstone,and the pinching of the sandstone often occurs in the extension direction.The ore minerals are mainly pyroxene copper(1%~5%),and the second is malachite(<2%).This sedimentary copper deposit is widely distributed in south Sichuan region,and there is no large-scale exploration and development at present,which needs further in-depth study.