云南蒙自白牛厂银多金属矿区深部找矿的新发现  

New dinding of ore-prospecting in the deep of bainiuchang siver-polymetallic deposit,Mengzi,Yunnan

作　　者：张洪培[1] 刘继顺[1] 张宪润[1] 章霞林 

机构地区：[1]中南大学地学与环境工程学院,湖南长沙410083 [2]蒙自矿冶有限责任公司,云南蒙自661100

出　　处：《矿产与地质》2006年第4期361-365,共5页Mineral Resources and Geology

基　　金：云南省省院省校科技合作项目(2004YX06)

摘　　要：云南白牛厂银多金属矿床是我国20世纪80年代后发现的超大型矿床之一。近年来作者通过对其控矿因素的进一步研究,突破了断裂控矿、层位控矿的认识局限,提出了成矿作用主要与燕山晚期花岗质岩浆活动有关;随着与隐伏花岗岩体接触带距离的加大,出现Sn(F e)→Cu→Zn→Pb→A g→Sb的矿化空间分带规律新认识。在分析深部岩体产状及地球物理勘查(高频大地电磁测深扫面)基础上,认为锡、铜是矿区南部深部的主要勘查目标,经钻探验证,发现了厚大的铜矿体和富锡矿体。Bainiuchang silver-polymetallic ore＇deposit is one of the super-large deposits found in 1980＇s in china. By studying on the ore-controlling factors, the authors put forward that ore-forming event is mainly associated to the granitic magmatism in Yanshan period. Mineralization occurs in transitional zonings, from the contact of the concealed granitic intrusion outwards, in a sequence of Sn（Fe）→Cu→Zn→Pb→Ag→Sb Sn. Tin orebodies and copper orebodies are the main exploration targets in the deep of the southern Bainiuchan deposit. Both copper and tin ore bodies which are thick stratified and rich are discovered by recent drilling tests based on analyses of the rock occurrence in deep and geophysical exploration result （high frequency magnetotelluric sounding survey）.

关 键 词：银多金属矿床 深部找矿 综述 花岗岩 矿床分带 铜矿体 锡矿体 白牛厂 

分 类 号：P618.52[天文地球—矿床学]