云南永善金沙厂铅锌矿成矿特征及成因浅析

金沙厂背斜核部存有三种不同于层位、不同位态的断层,即震旦系灯影组中顺层滑动带（FC1）;下寒武统梅树村组中层间滑动构造（FC2）及切割灯影组白岩哨段下亚段层位的陡倾斜断层组（F4）.当含矿溶液沿上述断层破碎带运移至低温环境下,发生进一步沉淀充填,形成矿区三种赋存类型不同的铅锌矿体.该矿床属地层构造控制的碳酸盐岩型中低温热液铅锌矿床.

THE METALLOGENETIC CHARACTERISTICS AND THE PRELIMINERY GENETIC ANALYSIS OF JINSHACHANG PB-ZN DEPOSIT IN YONGSHAN,YUNNAN

There are 3 different horizon, different state faults in the core of Jinshachang anticline, ie, the bedding slip zone in Sinian Dengying Formation （ FC1 ）, the interlayer slip structure in Lower Cambrian Meishucun Formation （FC2） and the steep fault set cutting Dengying Formation Baiyanshao Member Lower Sub-Member （F~）. The further precipitation and filling take place, then form 3 different occurrence type Pb-Zn bodies as the ore-bearing fluid migrates into the low T environment along the fault zones mentioned above. This ore deposit be- longs to the carbonate rock type middle-low T hydrothermal Pb-Zn deposit controlled by bed and structure.