四川拉拉铜矿矿石特征研究及其意义

Research on ore Characteristics and its Significance of the La-la Copper Deposit in Sichuan Province

四川拉拉铜矿为我国著名的大型富铜矿床,长期以来,不同学者从不同角度对其成因进行了探讨。根据现阶段的研究成果,认为该矿床为较典型的火山-沉积变质矿床。笔者在矿区系统采集了典型矿石样品,并从矿石类型、组构,矿石矿物成分、化学成分等四个方面对矿石特征进行了系统研究,为矿床成因提供了一定的理论依据。矿石的结构、构造,矿石中黄铁矿、磁铁矿等主要矿物的化学成分以及矿石的化学成分等特征均在一定程度上反映了拉拉铜矿为火山-沉积变质成因。

The La-la copper deposit in Sichuan province is a famous large-scale rich copper deposit in China. For a long time, different scholars from different angles discussed its cause. According to the research results of present stage, it is reckoned that the deposit is a relatively typical volcano sedimentary metamorphic deposit. Author collected the typical ore samples in the mining area and systematically research its characteristics from four aspects-the ore type, fabric, mineral composition and chemical composition, which provides some theoretical basis for ore genesis in a certain extent. Ore texture, structure, chemical composition of main minerals such as pyrite, magnetite in the ore, ore chemical composition and other characteristics to some extent reflects the La-la copper deposit genesis-volcano-sedimentary metamorphism.