广西金秀寨宝铜多金属矿矿床成因

THE GENESIS OF ZHAIBAO CU MULTIMETALLIC DEPOSIT IN JINXIU,GUANGXI

矿体受近南北向断层硅化破碎带控制,赋矿围岩为下泥盆统莲花山组上段。成矿物质来源、微量元素和成矿条件研究认为:铜多金属矿床由多因素耦合形成。多期次构造运动和岩浆活动是提供成矿物质活化的热源和部分成矿物质的关键因素。属破碎带中低温热液硫化物充填—交代型矿床。

The ore body is controlled by the nearly NS fault silicification fracture zone.Lower Devonian Lianhuashan Formation Upper Member is the ore-bearing wall rock.According to the study of metallogenetic material origin,trace element and metallogenetic condition,we think the Cu multimetallic deposit is caused by many factors.The multiphasic tectonic movement and magmatism are the key factors of supplies of metallogenetic material activization heat source and a part of metallogenetic material.It is a ore deposit of low T hydrothermal sulfide filling-metasomatic type in fracture zone.