云南西畴红石岩喷流沉积型铅锌铜矿地质特征及找矿意义

Geologic Characteristics and Ore-hunting Significane of Hongshiyan Jets Sedimentary Type Lead-zinc-copper Deposit in Xichou County,Yunnan Province

西畴红石岩铅锌铜矿为滇东南锡锌多金属成矿带重要组成部分,是近年来探明的大型矿床。矿体产于中寒武世田蓬组上段浅变质岩中,受地层层位控制,延展范围大。矿石条纹状构造发育,具有较明显的海底喷流沉积型矿床特征。根据矿床成矿地质背景和矿床地质特征,总结了矿床的控矿因素,分析矿床的成因,并指出了进一步找矿方向,对该区的找矿工作具有重要的理论意义和实际应用价值。

In Xichou county Hongshiyan lead-zinc-copper deposit is the important part of tin zinc polymetallic metallogenic belt in southeast Yunnan, and is proven large ore deposit in recent years. The orebody exist in the middle cambrian tianpeng formation upper-grade metamor- phic rocks, and is controlled the stratigraphic horizon with extended range. The ore devel- oped the striped structure with more pronounced characteristics of underwater jets sedimen- tary type deposit. Based on the ore-forming geological background and geologic characteris- tics of the deposit, the author conclude the deposit of ore-controlling factors , anslysed the couse of deposit and pointed out the further prospecting direction. cal significance and practical application value for the prospecting There are great theoreti- work in the area.