安徽朱顶重晶石矿地质特征及成因浅析  

Geological characteristics and genetic analysis of the Zhuding barite deposit,Anhui

作　　者：张家嘉 姚远涛 顾大年 张顺林[1] 产思维 ZHANG Jiajia;YAO Yuantao;GU Danian;ZHANG Shunin;CHAN Siwei(Institute of Exploration Technology of Anhui Province,Hefei,Anhui 230031,China)

机构地区：[1]安徽省勘查技术院,安徽合肥230031

出　　处：《安徽地质》2024年第3期203-207,共5页Geology of Anhui

基　　金：安徽省公益性地质工作项目“皖东五河-凤阳矿集区三维综合探测与深部金、铅锌多金属成矿预测”(编号:2022-g-2-4)资助。

摘　　要：安徽朱顶重晶石矿床产于郯庐主干断裂之北西向次级断裂破碎带中,赋矿围岩为上白垩统新庄组砾岩和五河群西堌堆组变粒岩,矿体呈透镜状、脉状产出,主矿体延伸稳定,围岩蚀变主要为重晶石化、硅化。矿石质量较好,品位变化属于均匀型。通过对本区矿床地质特征、矿床成因分析,认为朱顶重晶石矿主要受北西向断裂构造控制,郯庐断裂的多期活动为矿床的形成和储存提供了良好的条件,该矿床为低温热液型矿床。The Zhuding barite deposit,Anhui is located in the NW-trending secondary fault fracture zone of the major Tan-Lu fault.The host rocks are conglomerate of the upper Cretaceous Xinzhuang Formation and granulite of Xigudui Formation of Wuhe Group.The ore bodies are lens-like and veins-like,and the main one is stable in extension,and the wall rock alterations are mainly baratization and silicification.The ore quality is good and the change in grade is relatively uniform.Based on the analysis of the geological characteristics and genesis of the deposit in this area,it is considered that the Zhuding barite deposit is mainly controlled by the NW-trending fault structure,and the multi-phase activity of the Tan-Lu fault provides good conditions for the formation and storage of the deposit,which is a low-temperature hydrothermal deposit.

关 键 词：重晶石矿 地质特征 矿床成因 

分 类 号：P611[天文地球—矿床学]