甘肃省岷县寨上金矿床构造序列及控矿模式初探  

ORE CONTROLLING MODE AND STRUCTURES OF ZHAISHANG GOLD DEPOSIT IN MINXIAN,GANSU PROVINCE

作　　者：王增涛[1] 王建中[1] 

机构地区：[1]武警黄金第五支队,西安710100

出　　处：《陕西地质》2015年第1期9-17,共9页Geology of Shaanxi

摘　　要：寨上金矿床属于断裂与褶皱联合控矿。矿区先后经历了区域变形作用、宽缓褶皱变形期、共轴紧闭挤压变形期、韧—脆性非共轴挤压变形期、晚期脆性变形期五个阶段。前三个阶段构造与成矿关系不大,属控岩构造,是后两期成矿构造发育的前提。第四阶段是构造热液成矿阶段(控矿构造),最后阶段形成的构造,对矿体起错断破坏和富集的双重作用。Zhaishang gold deposit is jointly controlled by faults and folds in structure. Five de- formed phases occurred in the mineralization area, including regional deformation, wide and gentle folds, coaxial closed extrusion, ductile-brittle non-coaxial closed extrusion deformation and late brit- tle deformation, the former three of which are of rock-controlled structure, less relation to ore forma- tion, and the later two formed the premise of mineralization structures. The fourth phase is of tecton- ic hydrothermal mineralization phase （ore-controlled structure）and the last one formed structures that played double functions of faulting and enrichment of ore bodies.

关 键 词：寨上 构造序列 构造控矿模式 

分 类 号：P618.510.2[天文地球—矿床学]