褪色蚀变作用与云南某铅锌矿的成矿关系  

Metallogenic Relationship of Fading&Alteration of one Yunnan Lead-zinc Mine

作　　者：邹进超 李金勇 陈子聪 ZOU Jin-chao;LI Jin-yong;CHEN Zi-cong(Yunnan Metallurgical Resources Co.,Ltd.,Kunming,Yunnan 650216,China)

机构地区：[1]云南冶金资源股份有限公司,云南昆明650216

出　　处：《云南冶金》2023年第6期10-14,共5页Yunnan Metallurgy

摘　　要：云南岩脚-牛倮河铅锌矿地处西南三江成矿带南端,位于唐古拉-三江地槽褶皱系兰坪-思茅中生代坳陷盆地南段的普洱-江城坳陷盆地中,北东临坡脚-过克梁子背斜,具有较好的成矿环境及成矿条件。矿体赋存于白垩系下统景星组与侏罗系中统和平乡组中,景星组地层为一套海陆交互相浅色砂泥质复理石建造,和平乡组地层为一套海陆混合相杂色砂泥质-碳酸盐建造;矿体围岩主要为中-粗砂岩、石英砂岩、泥质粉砂岩、粉砂质泥岩,近矿围岩可见明显的褪色蚀变带,矿体表现出一定的层位控矿特征,且均位于褪色蚀变带内。Yunnan Yanjiao-niuluohe lead-zinc mine is located at the southern end of the southwest Sanjiang metallogenic belt,in the Puer-Jiangchen depression basin,southern end of Lanping-Simao Mesozoic Era depression basin,of Tanggula-Sanjiangdi geosynclinal folded system,its northeast part border with Pojiao-Guokeliangzi interlamination,it has better metallogenic environment and metallogenic conditions.The orebody exists in the Jingxing Group,the middle Jurassic and the Pingxiang Group of the lower Cretaceous System,Jingxing Group stratum is a suite of interactive marine&terrestrial deposit,light-colored sandy-argillaceous flysch formations,Hepingxiang Group stratum is a suite of mixed marine&terrestrial deposits,mottled sandy-argillaceous-carbonate formation;Orebody surrounding rock is mainly composed of medium-and coarse-grained sandstone,quartz sandstone,argillaceous siltstone,and silty mudstone,the obvious fading alteration zone is visible at the surrounding rock,the ore body has certain horizons ore-control characteristics,and it is located inside the fading alteration zone.

关 键 词：云南岩脚-牛倮河铅锌矿 褪色蚀变作用 层位控制 迁移 热液活动 

分 类 号：TD263[矿业工程—矿井建设]