山西五台山—恒山太古代绿岩带金矿及其典型矿床地质特征  

Archaean greenstone belt type gold deposits in Wutaishan-Hengshan of Shanxi and geological characteristics of typical deposits

作　　者：郭国海 姜宇 黄晋荣 GUO Guohai;JIANG Yu;HUANG Jinrong(Shanxi Institute of Geological Survey,Taiyuan 030006,China)

机构地区：[1]山西省地质调查院有限公司,太原030006

出　　处：《世界地质》2023年第1期50-60,共11页World Geology

基　　金：中国地质调查局项目:山西矿产地质志续编与产品服务(KD-[2022]-XZ-016)。

摘　　要：山西五台山—恒山太古代绿岩带金矿为华北板块区绿岩带中规模最大又十分典型的金矿床之一。矿体主要赋存于五台群柏枝岩组、金岗库组硅铁建造与鸿门岩组云母石英片岩中,典型金矿床有山西五台山东腰庄和代县小板峪金矿床等;金矿体呈似层状、透镜体状产出,矿床与太古代绿岩带硅铁建造和脆-韧性剪切带密切相关;矿石类型以含黄铁矿化绢云钠长片岩为特征,金主要赋存于黄铁矿中;硅化、黄铁矿化等围岩蚀变与金矿化关系密切;金矿床成因为与太古代绿岩带硅铁建造和脆-韧性剪切带密切相关的变质热液型。The Wutaishan-Hengshan Archean greenstone belt type gold deposit in Shanxi Province is one of the largest and very typical gold deposits in the greenstone belts of the North China plate.It mainly occurs in the cherty iron-formation of Baizhiyan and Jingangku formations and in the mica-quartz schist of Hongmenyan Formation of Wutai Group.Typical gold deposits include Dongyaozhuang gold deposit in Wutaishan and Xiaobanyu gold deposit in Daixian.The gold orebodies are mainly stratified and lenticular,and the deposits are closely related to the cherty iron-formation in the Archaean greenstone belt and brittle-ductile shear zone.The ore rock type is characterized by pyritic sericite-albite schist,and gold mainly occurs in pyrite.Wall-rock alterations such as silicification and pyritization are closely related to gold mineralization.The gold deposit is a metamorphic hydrothermal type,which is closely related to the cherty iron-formation in the Archaean greenstone belt and the brittle-ductile shear zone.

关 键 词：绿岩带 硅铁建造 脆-韧性剪切带 东腰庄金矿 小板峪金矿 太古代 

分 类 号：P618.51[天文地球—矿床学]