内蒙某矿业铜铅锌多金属矿金、银的嵌存状态

Study on Gold and Silver Occurrence in Cu-Pb-Zn Multi-Metal Ore for a Certain Mine of Lnner Mongolia

该矿床是受断裂构造控制的中温热液矿床。经详细的光、薄片鉴定,认为该矿床矿石组成比较复杂,主要为磁黄铁矿、方铅矿、闪锌矿、毒砂、黄铁矿、银黝铜矿和黄铜矿等,其次还有脆硫锑铅矿、辉银矿、金银矿、脆银矿和辉锑银矿等。对该铜铅锌多金属矿进行了工艺矿物学研究,重点查明伴生金银的赋存状态、嵌布粒度等工艺特征。为确定合理的选矿工艺流程及条件提供依据。

The Cu - Pb - Zn polymetallic ore deposit belongs to mesothermal deposit controlled by fractures. Based on the microscopic study on transparent and polished thin sections for different minerals, it has been realized that the main ore mineral assemblages consist of pyrrhotite, galena, sphalerite, arsenopyrite, pyrite, freibergite, chalcopyrite with minor amount of jamesonite, argentite, kustelite, stephanite and miargyrite, etc. The paper introduced the researches on mineralogy technique, which pay a lot attention to the bearing state, dissemination granularity and other technique characteristics of associated gold and silver. The aim of the researches is to provide references for choosing rational ore processing technique and conditions.