四川广元市董家院金矿剪切带构造特征及控矿作用  

THE SHEAR ZONE STRUCTURE FEATURE AND ORE CONTROL OF DOGJIAYUAN AU DEPOSIT IN GUANGYUAN,SICHUAN

作　　者：王柘 阳明[1] 王本达 

机构地区：[1]桂林理工大学,广西桂林541000 [2]中国有色集团(广西)平桂飞碟股份有限公司,广西贺州524800

出　　处：《云南地质》2015年第1期104-108,共5页Yunnan Geology

摘　　要：董家院金矿区地处扬子地台与秦岭及松潘—甘孜褶皱带结合部,区内金矿体主要为含金石英脉,矿脉形态复杂,以单脉、组合脉和脉群形态产出。矿体的空间分布受区内北东—南西向展布的一组脆—韧性剪切带的控制。Ⅰ级主剪切带和Ⅱ级次级剪切带是矿区金矿形成的导矿构造,而Ⅲ级和Ⅳ级剪切带却是金矿的容矿构造;该金矿床为与剪切带有关的石英脉型金矿床。Dongjiayuan Au orefield is in the conjunction area of Yangzi platform and Qinling, Songpan-Ganzi fold zone. The main Au orebody in this area is the Au-bearing quartz vein. The form of ore vein is complex, in- cluding single vein, composite vein and swarm. The space distribution of orebody is controlled by the NE-SW brit- tle-ductility shear zone in this area. The Au ore transmission structure is the major shear zone Ⅰ and the minor one Ⅱ, whereas the ore-beating structure is the shear zone Ⅲ, Ⅳ. It is a quartz vein Au deposit in relation with the shear zone.

关 键 词：石英脉型金矿床 脆—韧性剪切带 构造控矿 四川广元董家院 

分 类 号：P542[天文地球—构造地质学]