地质与勘探2012，Vol.48Issue(4)：685-692,8.
赣南樟东坑钨矿成矿花岗岩及矿化特征
Characteristics of Ore-forming Granite and Its Mineralization in the Zhangdongkeng Tungsten Deposit of Southern Jiangxi Province
摘要
Abstract
The Zhangdongkeng tungsten deposit is a typical quartz vein type tungsten-molybdenum deposit hosted outside the granitic contact zone in the Chongyi-Dayu-Shangyou area.The concealed granites in the mine are dominated by two lithofacies,the main granitic body and the flamboyance vein body.Both of them are ore-forming mother rocks with osculation related to the tungsten-molybdenum mineralization.The granites in the mine district are rich in silicon and aluminum,but poor in iron and magnesium,middling in calcium;more alkali and rich in kalium.The DI index is relatively high,and the ACNK value is more than one.They belong to acidic to utra-acidic and alkalescence to calcium alkalescence rock series,with a high degree of differentiation,near to exceed aluminous,i.e.a kind of remelting-reforming granite type from crust rock.And their geochemical characteristics are rich in Rb,Th,U,K,Ta,and Y trace elements but poor in Ba,Nb,Sr,P,and Ti.The total amount of rare-earth elements is low but relatively rich in light rare-earth ones,and severely depleted in Eu with a ＂seagull type＂ of rare-earth element distribution curve.All these indicate further that they are crust type of granites with a high degree of magma evolution.The tungsten-molybdenum mineralization in the mine district is divided into two kinds of type：one is quartz-vine and the other is rock-body,both of them being of mineralizing characters of ＂upper tungsten-lower molybdenum＂ and ＂upper vein-lower body＂,controlled by intrusion and differential evolution of the granite.The flamboyance granule granitic vein type of tungsten-molybdenum mineralization in Zhangdongkeng is a newly discovered type of mineralization in the vein tungsten mine districts of Chong-Yu-You,southern Jiangxi in recent years,with a good ore-search prospect.关键词
“上脉下体”/“上钨下钼”/花岗岩演化/岩体型矿化/樟东坑钨矿/赣南Key words
upper vein-lower body/upper tungsten-lower molybdenum/granite evolution/rock body type of mineralization/Zhangdongkeng tungsten deposit/southern Jiangxi分类
天文与地球科学引用本文复制引用
黄小娥,李光来,郭家松,张敏,胡志国,华仁民,韦星林..赣南樟东坑钨矿成矿花岗岩及矿化特征[J].地质与勘探,2012,48(4):685-692,8.基金项目
国家重点基础研究发展计划 （）
国家自然科学基金项目（41073035）资助的成果 （）
