贵州镇远地区铅锌矿同位素地球化学特征及矿床成因

THE ISOTOPE GEOCHEMICAL FEATURE AND GENESIS OF PB-ZN DEPOSIT IN ZHENYUAN AREA,GUIZHOU

通过对镇远地区金堡、都坪、小溪铅锌矿床开展碳、氧、硫同位素地球化学特征研究。结果显示:都坪和小溪矿床成矿物质来自于海相蒸发岩或沉积地层,金堡矿床成矿物质很有可能来自于地壳深部的岩浆源。结合区域构造及矿床特征分析,可以认为镇远地区铅锌矿床可分为与海相沉积地层及深部岩浆作用有关的两种成因类型的矿床。

According to the study on C, O, S isotope of Jinbao, Duping, Xiaoxi Pb-Zn deposit in Zhenyuan area, the result shows the metallogenesis material is from the marine facies evaporite or sediment, whereas the metallogenesis material is possibly fromdeep crust magmatic source. In combination with the analysis of tectonics and ore deposit feature, we think the Pb-Zn deposit in Zhenyuan Can be divided into 2 genesis types, which are separately related with marine facies sediment, deep magmatism.