黔西北地区威宁铜厂河玄武岩型铜矿化特征及矿化规律  

Copper mineralization features and regularity of Tongchanghe basalt type deposit in Weining in Northwest Guizhou

作　　者：杨再清 

机构地区：[1]贵州省有色金属和核工业勘查局二总队,贵州六盘水553004

出　　处：《矿产与地质》2015年第5期613-616,共4页Mineral Resources and Geology

摘　　要：铜厂河铜矿产于大陆溢流钙碱性玄武岩中,铜矿化主要产于第三喷发旋回中晚期,即第8喷发层(P3em3-8)中上部,赋矿岩石主要为杏仁状玄武岩,矿体呈似层状产出,经详查以估算资源量矿石量约115万t,铜金属量1.1万t,铜品位0.98%,为一小型铜矿床。通过总结铜矿化特征与矿化规律,对我国西南地区广泛分布的同期玄武岩,特别在黔西北地区具有相似成矿地质背景,对其找矿可提供借鉴。Tongchanghe basalt type copper deposit is located in the continental flood calc alkaline basalt.Cop-per mineralization mainly occurs in the middle and later period of the three eruption cycles,i.e.the middle and upper part of the 8th eruption layer (P3 em3-8 ).Ore bearing rock is mainly as amygdaloidal basalt.The orebody is layered.Through detailed investigation of resource assessment,the ore amount is about 1,150,000 t, copper metal is 1 1,000 t,copper grade is 0.98% in average.The deposit is a small copper deposit.By sum-marizing copper mineralization characteristics and regularity,the paper will provide reference for the copper exploration in the basalt in the southwest of China,especially in the northwest of Guizhou Province.

关 键 词：大陆玄武岩型铜矿 铜矿化特征 矿化规律 黔西北 

分 类 号：P618.41[天文地球—矿床学]