引言西成铅锌矿田东部地区,已探明的大型矿床有三处,中、小型矿床多处,矿(化)点数十个,成为我国重要有色金属基地之一.矿床属沉积变质层控类型,产于中泥盆统碳酸盐岩或碎屑岩中.矿床矿石物质成分简单,并有含量不等的黄铁矿.矿床有的与含硅、含碳灰岩有很密切的关 Introduction In the eastern part of the Xicheng lead-zinc ore field, there are three proven large-scale mineral deposits, with many deposits of medium and small deposits and dozens of mineralization sites, forming one of the important non-ferrous metal bases in China. , Produced in the Middle Devonian carbonate rocks or clastic rocks.The mineral composition of ore deposits is simple and there are pyrite with varying content.The deposit is closely related to silicon and limestone