安徽省东至县牛头高家金矿硫铅同位素示踪性浅析

牛头高家金矿位于安徽省东至县地区,属扬子陆块北缘,其成矿围岩为红色粘土和奥陶系地层。本次研究对该矿区矿石矿物中的硫铅同位素进行系统分析,硫铅同位素组成显示了成矿物质的复杂性和多元性。结合地质背景和矿床地质特征分析,认为该矿床成矿物质主要来自岩浆热液,而奥陶系地层也提供了部分成矿物质。牛头高家金矿原生矿为浅成低温热液型矿床,后经历较为复杂的地质过程,最终形成独特的红土型金矿。

Sulfur and lead isotopic tracer of Niutougaojia gold deposit in Dongzhi of Anhui

Niutougaojia gold deposit is located in Dongzhi County of Anhui Province,and it is at the northern margin of Yangtze block.The ore-forming wall rocks include red clay and Ordovician strata.This paper con-ducted systematic analysis on sulfur and lead isotope of the ores and minerals in the mining area,and the sul-fur and lead isotope composition showed the complexity and diversity of ore-forming materials.Combined with the analysis on the geological background and geological characteristics of the ore deposit,the author believed that the ore-forming materials were mainly sourced from magmatic hydrothermal fluid,and the Or-dovician strata also provided some ore-forming materials.The primary deposit of Niutougaojia gold deposit is a low-temperature epithermal deposit,and finally forms a unique red clay type gold deposit after a relatively complex geological process.