安徽金寨汞洞冲铅锌矿“三位一体”成矿特征研究  

A Study of the"Trinity"Metallogenic Characteristics of the Gongdongchong Pb-Zn Deposit in Jinzhai,Anhui

作　　者：陈海锋 刘忠[1] 周皓宇 胡飞平 周鹏超 CHEN Hai-feng;LIU Zhong;ZHOU Hao-yu;HU Fei-ping;ZHOU Peng-chao(The 313rd Geological Team,Anhui Bureau of Geology and Mineral Exploration,Lu’an,Anhui 237010)

机构地区：[1]安徽省地质矿产勘查局313地质队,安徽六安237000

出　　处：《四川地质学报》2021年第1期52-56,共5页Acta Geologica Sichuan

基　　金：中国地质调查局项目(121201004000150017-1,121201004000160901-10)。

摘　　要：安徽金寨汞洞冲铅锌矿是北淮阳地区重要的铅锌多金属矿床,文章分析研究了汞洞冲铅锌矿床区域地质背景、矿床地质特征,进一步结合前人所做的同位素地球化学、矿产勘查工作以及矿山开采实践等,讨论了铅锌矿床成因与区内构造-岩浆活动的联系,分析了其成矿地质体、成矿构造、成矿结构面以及成矿作用特征标志,建立了汞洞冲铅锌矿床“三位一体”成矿模型。成矿特征研究表明:区内铅锌矿床受构造-岩浆控制作用明显,燕山晚期的中酸性岩浆热液活动是其成矿来源,构造-岩浆带附近的断裂交汇部位是矿床形成的优越部位。此外,结合“三位一体”成矿理论分析,可以通过多种综合找矿手段在该区寻找深部隐伏铅锌矿体,从而扩大矿床规模。The Gongdongchong Pb-Zn deposit in Jinzhai,Lu’an,Anhui is an important one in the north Huaiyang area.This paper deals with its regional geological background,geological features,isotopic geochemistry,host structures,ore criteria,geological exploration and mining practices based on the predecessors.A"trinity"metallogenic model for the Gongdongchong Pb-Zn deposit is set up.The study indicates that the Pb-Zn deposit is controlled obviously by structure and magmatism.The ore material and ore fluids were derived from intermediate-acid magmatic hydrothermal activity in the Late Yanshanian epoch.The Fault junction near the tectono-magmatic zone is the preferred site for the formation of the deposit.

关 键 词：铅锌矿床 汞洞冲 “三位一体” 矿床模式 找矿预测 

分 类 号：P611[天文地球—矿床学]