安徽东至县程檀金矿床地质特征及找矿标志  

Geological characteristics and prospecting mark of Chentan gold deposit in Dongzhi County of Anhui

作　　者：沈欢喜[1] 胥飞[1] 钱祥[1] 杨金龙[1] SHEN Huanxi;XU Fei;QIAN Xiang;YANG Jinlong(The Geological Team No.311,Bureau of Geology and Mineral Exploration of Anhui Province,Anqing 246003,Anhui,China)

机构地区：[1]安徽省地质矿产勘查局311地质队,安徽安庆246003

出　　处：《矿产与地质》2021年第5期884-890,共7页Mineral Resources and Geology

基　　金：安徽省国土资源厅基金项目“安徽省东至县查册桥-西峰尖金铜多金属矿普查”(编号:2015-2-15)与科技项目“安徽省东至县查册桥-西峰尖金铜多金属矿成矿条件及控矿因素研究”(编号:2012-1-28)共同资助。

摘　　要：安徽省东至县程檀金矿床是一受构造控制的中低温热液蚀变型矿床。金矿体主要呈透镜状、似层状产于前寒武系的休宁组、南沱组、蓝田组中。矿区共圈定金矿体5个,矿体长80~1100 m,真厚度为1.01~17.23 m,矿石金品位介于0.5×10^(-6)~19.34×10^(-6)之间。结合成矿地质背景及同位素地球化学特征,研究分析了矿区金矿地质特征、控矿因素,并对矿床成因进行了探讨,提出了找矿标志,对安徽东至地区寻找同类矿床具有借鉴意义。Chengtan gold deposit is a mid-low temperature hydrothermal alteration type deposit controlled by structure in Dongzhi County,Anhui Province.The gold orebodies are mainly hosted in Xiuning,Nantuo and Lantian formations of Precambrian system with lentilated and stratified shape.There are circled out for five gold orebodies in the mining area,with a length of 80-1100 m and a true thickness of 1.01-17.23 m,and the ore gold grade is 0.5×10^(-6)-19.34×10^(-6).Combined with the metallogenic geological background and isotopic geochemical characteristics,the geological characteristics and ore-controlling factors of the gold deposit are studied and analyzed,and the deposit genesis is discussed.The prospecting mark is also summarized.It can be used for a reference to explore for the similar deposit in the Dongzhi area of Anhui province.

关 键 词：金矿 构造 休宁组 矿床类型 安徽 

分 类 号：P618.51[天文地球—矿床学]