皖南金家山金矿地质特征及控矿因素  

GEOLOGICAL CHARACTERISTICS AND ORE-CONTROLLING FACTORS OF THE JINJIASHAN GOLD DEPOSIT IN SOUTH ANHUI

作　　者：章贤能[1] 寇尚文 丁勇[1] ZHANG Xian-neng;KOU Shang-wen;DING Yong(No.332 Unit of Bureau of Geology and Mineral Exploration of Anhui Province,Huangshan,Anhui 245000,China)

机构地区：[1]安徽省地质矿产勘查局332地质队,安徽黄山245000

出　　处：《安徽地质》2020年第2期100-104,共5页Geology of Anhui

基　　金：安徽省地质勘查基金“安徽省祁门县金家山金矿预/普查”项目资助,项目编号:2011-2-12-1(预查),2018-1-Ⅱ(普查)。

摘　　要：金家山金矿受张性或扭张性断层控制,成矿地质体为构造角砾岩,围岩为新元古代环砂组和牛屋组浊积岩。矿石自然类型以蚀变岩型为主,少量含金石英脉;矿石矿物主要为毒砂、黄铁矿,少量黄铜矿、闪锌矿、褐铁矿。通过金家山及周边地区十多年金矿勘查和分析,初步认为金家山地区金矿为低温热液交代叠加构造岩形成的微细浸染型金矿。The Jinjiashan gold deposit is controlled by extensional or torsionally extensional faults,the ore-forming geological body is tectonic breccia,and the surrounding rocks are turbidite of Neoproterozoic Huansha Formation and Niuwu Formation.The natural type of ore is mainly altered rock type with lesser auriferous quartz veins.The ore consists mainly of arsenopyrite,pyrite,with minor chalcopyrite,sphalerite and limonite.Through gold exploration around the Jinjiashan area over ten years and analysis,it is suggested that the gold deposit in the Jinjiashan area is finely disseminated gold deposit formed by low-temperature hydrothermal metasomatism superimposed on tectonites.

关 键 词：金矿 断层 浊积岩 微细浸染型金矿 金家山 

分 类 号：P611[天文地球—矿床学]