塔拉克铜矿床砂岩型铜矿石特征

The characteristics of sandstone copper ores in Talake copper deposit

塔拉克铜矿床是中新世陆相砂岩型铜矿,其铜矿石主要为砂岩型,包括黄铜矿、铜蓝、辉铜矿、斑铜矿矿石等4种自然类型。矿石结构为结晶结构、交代结构,矿石构造为浸染状构造。由上而下可划分为:①氧化带(混合矿石),②次生富集带(硫化矿石),③原生带。严格受地层层位及岩性控制,过渡岩相是矿层赋存的主要部位,褶皱和构造为铜矿迁移和沉积提供良好的构造条件。其特征与新疆滴水铜矿类似,对该区域的找矿工作具有重要指导意义。

Talake copper deposit is a Miocene continental sandstone type copper deposit.Its copper ores are mainly sandstone type,including chalcopyrite,Tonglan,chalcocite and bornite.The ore structure is crystal structure and metasomatic structure,and the ore structure is disseminated structure.From top to bottom,it can be divided into ① oxidation zone (mixed ore),② secondary enrichment zone (sulfide ore) and ③ primary zone.Strictly controlled by stratigraphic horizon and lithology,transitional lithofacies is the main part of ore occurrence.Folds and structures provide good structural conditions for copper migration and deposition.Its characteristics are similar to those of Dishui copper deposit in Xinjiang,which is of great significance for prospecting in this area.