四川则里波西铅锌矿地质特征及控矿因素分析

Geological characteristics and ore controlling factors of Zeliboxi Pb-Zn deposit in Sichuan

研究区位于汉源-甘洛-宁南铅锌成矿带南段,通过地质勘查及以往区域资料综合研究,发现该区矿体赋存于中奥陶统大菁组白云岩层间破碎带和张裂隙中,主要受构造、地层、岩性控制,呈似层状、透镜状、细脉状产出。在矿床成因分析的基础上初步确定该铅锌矿属沉积-改造型矿床。

The study area is located in the southern section of the Hanyuan- Ganluo -Ningnan Pb-Zn metallogenic belt.Through geological exploration and comprehensive study of previous regional data, it is found that the ore bodies in this area occur in the interlayer fracture zone and tensional fissures of the dolomite of Dajing Formation of Middle Ordovician, which are mainly controlled by structure, strata and lithology and occur in the form of layered, lenticular and veinlet. Based on the analysis of the genesis of the deposit, it is preliminarily determined that the Pb-Zn deposit belongs to a sedimentary altered deposit.