新疆于田塔木其铜锌矿地质特征及找矿意义

块状硫化物矿床是西昆仑地区重要的铜锌矿床类型之一。为了查明西昆仑地区塔木其块状硫化物矿床的地质特征、成矿条件,本文根据系统的野外地质调查工作、室内观察、实验测试,对矿区含矿岩系、矿体、矿化特征等进行分析,认为塔木其铜锌矿产于阿羌火山岩系之中,该岩系由基性火山岩和酸性火山岩构成,具有典型的"双峰式"特征。该矿床矿石矿物亦具有典型的块状硫化物特征。经研究认为阿羌火山岩在形成与演化过程中为该矿床的形成提供丰富的物质来源;矿区岩石组合、地球化学特征反映了该区具有较好的找矿前景;对塔木其铜锌矿的系统研究在该区探寻同类型矿床具有重要的指导意义。

Geological characteristics of Yutian Tamuqi Cu-Zn deposit in Xinjiang and their implications for prospecting

Massive sulfide ore deposit is a very important copper deposit type in west of Kunlun. In order to probe into its geological characteristics and regional metallogenetic condition, the authors made detailed field inspecting,laboratory analysis and tests. The authors studied the geological background, ore bearing rock series, ore body and ore mineral characteristics, genesis and prospecting potential of the deposit. The study found that it is characterized by copper typical of massive sulfide deposits. The deposit, which can be obviously divided into basic and acid volcanic types, are present in the bi-model volcanic rock of Aqiang. Aqiang volcanic rocks in the West Kunlun orogen supplied metal element for massive sulfide deposits. Based on the massive sulfide deposits of rock association, geochemistry and metallogenic characteristics, the relationships between the origin of the massive sulfide deposits and the favorable prospecting regions are discussed.The research on the Yutian Tamuqi Cu-Zn Deposit in Xinjiang has an important guiding meaning for the ore prospecting work this area.