破山独立银矿卤族元素地球化学  

HALOGEN GEOCHEMISTRY OF THE POSHAN INDEPENDENT SILVER DEPOSIT, HENAN

作　　者：叶霖[1] 刘铁庚[1] 

机构地区：[1]中国科学院地球化学研究所矿床开放研究实验室

出　　处：《地质与勘探》2003年第4期41-45,共5页Geology and Exploration

基　　金：国家攀登预选项目(编号:95-预-25-02-03);国家基金(编号:49772116);中国科学院地球化学研究所矿床开放室基金资助。

摘　　要：通过对破山独立银矿卤族元素和Mn等成矿元素的研究,认为破山银矿中卤族元素和Mn与Ag的成矿作用密切相关,由于矿区北部桃园花岗岩体侵入时带来了大量F等矿化剂元素,使含矿层中Ag、Pb、Zn等再次被活化浸出,成矿物质主要以卤族元素的络合物形式迁移和搬运,在构造有利部位同时在富Mn岩层富集成矿。由于卤族元素地球化学性质的差异,在不同深度矿体附近形成不同的扩散晕,可以利用这些规律指导找矿。This paper describes the contents of halogens in various kinds of rocks and ores in the Poshan silver deposit, the relations among the halogen elements and their bearing on the metallogenesis of Ag and Mn, and the relations between Ag and Mn. It has been shown that there are close relationship between Ag and the halogen elements and Mn. The abundant mineralizer like halogens, which were carried by intrusion of Taoyuan granite in the north area, made Ag, Pb and Zn in mineralization layer to mobilize. Those mineralizing elements migrated and transported by complex of halogen elements, and enriched and mineralized in rich-Mn layers and the advantaged parts of structure. By the difference of geochemical character of halogen elements, the halogen elements form the different diffusion halo in the different mineralizing depth.

关 键 词：地球化学 卤族元素 破山银矿 成矿元素 活化浸出 络合物形式 锰晕 

分 类 号：P595[天文地球—地球化学] P618.52[天文地球—地质学]