辽宁夹山金铜矿区金的赋存状态研究

来源期刊：黄金2011年第4期

论文作者：徐万臣 牛娜 张明仁

文章页码：18 - 21

关键词：夹山金铜矿区； 金矿物； 赋存状态

Key words：Jiashan gold-copper mining area； characteristic of gold mineral； occurrence state of gold

摘    要：辽宁夹山金铜矿区物质组分和金的赋存状态研究结果表明,矿石的主要金属矿物有黄铁矿、黄铜矿、方铅矿、闪锌矿、银金矿、自然金等,这种典型矿物组合可作为寻找和评价金矿床的找矿矿物学标志。金矿物的形态以不规则状为主,且粒度细小;金的成色平均为744。金的赋存状态有明金、显微金(裂隙金、晶隙金和包体金)和超显微金,以显微金为主,裂隙金、晶隙金和包体金赋存于黄铁矿、黄铜矿等矿物中,金与黄铁矿关系密切,黄铁矿是金的主要载体矿物;含金黄铁矿可作为寻找和评价金矿床的找矿矿物学指示标志。

Abstract: Studies on the material composition and gold occurrence state in Liaoning Jiashan gold-copper mining area show that the metal materials are mainly pyrite,chalcopyrite,galena,blende,electrum,native gold and so on.The typical mineral association can act as the mineralogy indicators to prospect and evaluate gold deposits.The gold minerals are mainly of irregular shapes and their granularity is fine.The average fineness of gold is 744.The occurrence state of gold is visible gold,micro gold(including fissure gold,crystal fractured gold and inclusion gold) and ultramicro gold.Micro gold is the main occurrence state.Fissure gold,crystal fractured gold and inclusion gold host in pyrite and chalcopyrite,and pyrite is the main carrier mineral.Pyrite containing gold can act as the mineralogy indicators to prospect and evaluate gold deposits.The study on gold mineral occurrence state is of important meanings to prospect and utilize the gold deposits.