安徽省铜陵老鸦岭铜矿床地质特征及地球化学特征  

Geological features and geochemical characteristics of Laoyaling copper deposit in Tongling,Anhui province

作　　者：徐方颖 赖健清[1,2] 王雄军[1,2] 

机构地区：[1]中南大学有色金属成矿预测教育部重点实验室,湖南长沙410083 [2]中南大学地球科学与信息物理学院,湖南长沙410083

出　　处：《矿产与地质》2015年第3期371-378,共8页Mineral Resources and Geology

基　　金：国家科技支持计划"铜陵地区危机铜矿山大比例尺定位预测技术开发"课题(编号:2006BAB01B07);国家自然科学基金项目(编号:41172297)资助

摘　　要：老鸦岭铜矿床是冬瓜山矿区内一个层控矽卡岩型矿床。区内主要出露三叠系地层,青山背斜是主要褶皱构造,侵入岩以燕山期中酸性岩体为主。矿体呈多层产在下二叠统至下三叠统的远离主接触带的大理岩地层中。矿区内的地层和岩体可能受同一流体的影响;地层和燕山期流体均为成矿提供稀土元素;矿床不同的元素异常组合对成矿有不同的指示作用。The Laoyaling copper deposit,located in the Dongguashan mining area,is a stratabound skarn type deposit.The main outcropped strata are limestone and dolomite of Triassic.Qingshan anticline is the main fold structure and Yanshanian intermediate-acidic magmatic rocks are the major intrusive rocks in the mining area.Orebodies mainly occur in Lower Permain-Lower Triassic marbles,far from the main contact zone. The formation and diorite in the mining area may be affected by the same fluid.Both formation and forming fluid of Yanshanian magmatic rocks provide REE for orebody.The different element anomaly combination of the deposit play different role of metallogenic environment.

关 键 词：铜矿床 地质特征 地球化学特征 老鸦岭 安徽 

分 类 号：P618.41[天文地球—矿床学]