内蒙古林西县干沟坝银锡多金属矿地质特征及成矿远景分析

Geological Characteristics and Metallogenic Prospect of Gangouba Silver-tin Polymetallic Deposit in Linxi County,Inner Mongolia

黄岗梁-孟恩陶勒盖多金属成矿带是内蒙古重要的成矿带,黄岗梁-林西铁锡多金属矿集区、白音诺-浩布高铅锌多金属矿集区,是成矿带两个重点成矿区域。干沟坝矿区位于两矿集区过渡带内,是寻找类似矿床的有利地段。通过对干沟坝矿区的野外地质勘查,厘定成矿地质条件,揭露了锡矿体4条,结合矿体地质特征及成矿构造分析,认为矿床类型属热液型银锡多金属矿床,伴生多金属元素有Cu、Pb、Zn、Mo等,矿体受岩体和与岩体有关的断裂裂隙构造严格控制,具有寻找深部矿体的潜力。

Huanggangliang-Menn Tolgoi polymetallic metallogenic belt is an important metallogenic belt in Inner Mongolia.Huanggangliang-Linxi iron-tin polymetallic ore concentration area and Baiyinnuo-Haobugao lead-zinc polymetallic ore concentration area are two key metallogenic areas of the metallogenic belt.Gangouba mining area is located in the transition zone,which is a favorable area to search for similar deposits.Through the field geological exploration of Ganguouba mining area,the metallogenic geological conditions were determined and four tin ore bodies were revealed.Combined with the geological characteristics of the ore body and the analysis of metallogenic structure,it is considered that the deposit belongs to hydrothermal silver-tin polymetallic deposit with associated polymetallic elements such as Cu,Pb,Zn and Mo.The ore body is strictly controlled by the rock mass and the fracture structure related to the rock mass,it has the potential to find deep concealed ore bodies.