湖北省随县黑龙潭金矿流体包裹体特征及其地质意义  

The Characteristics and Geological Significance of Fluid Inclusions in Heilongtan Gold Depositx in Suixian County,Hubei Province

作　　者：朱小平 冯久林 朱国谦 ZHU Xiaoping;FENG Jiulin;ZHU Guoqian(The 8th Geological Brigade of Hubei Provincial Bureau of Geology,Xiangyang 441002,China)

机构地区：[1]湖北省地质局第八地质大队,湖北襄阳441002

出　　处：《四川有色金属》2023年第2期34-37,57,共5页Sichuan Nonferrous Metals

基　　金：鄂西北地区重要地质事件及其成矿作用--中生代成矿作用,项目编号:DKY2020-13。

摘　　要：黑龙潭金矿是湖北省内达到中型规模的老矿山,金矿开采始于上世纪80年代。矿床属岩浆热液型金矿,热液阶段包括黄铁矿-绢云母-石英阶段、石英-多金属硫化物阶段、方解石-石英-多金属硫化物阶段.流体包裹体分为含CO_(2)水溶液流体(C型)、富CO_(2)流体包裹体(PC型)和水溶液流体包裹体(W型)。流体包裹体均一温度148℃~210℃,盐度4.1~11.4wt.%NaCl equiv,成矿流体来源与深部壳幔熔融的岩浆热液密切相关,成矿过程中有变质水、大气降水混入。Heilongtan gold mine is a medium-sized old mine in Hubei Province,gold mining begans in the 1980s.This deposit belongs to magmatic hydrothermal gold deposit,hydrothermal stage includes pyrite-sericite-quartz stage,quartz-polymetallic sulfide stage,calcite-quartz-polymetallic sulfide stage.Fluid inclusions are divided into CO_(2)-containing aqueous solution fluid(type C),CO_(2)-rich fluid inclusion(type PC)and aqueous solution fluid inclusion(type W).Fluid inclusion homogenization temperature 148℃~210℃,salinity 4.1~11.4 wt.%NaCl equiv,the source of ore-forming fluid is closely related to the magmatic hydrothermal fluid of deep crust and mantle melting,metamorphic water and atmospheric precipitation are mixed in the mineralization process.

关 键 词：黑龙潭金矿 流体包裹体 成矿流体 随县 

分 类 号：P618[天文地球—矿床学]