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西天山阿希、京希-伊尔曼得金矿床成矿流体包裹体研究及矿化类型探讨

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文章导航 > 西北地质 > 2005 > 38(1): 31-36

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冯娟萍, 王居里. 西天山阿希、京希-伊尔曼得金矿床成矿流体包裹体研究及矿化类型探讨[J]. 西北地质, 2005, 38(1): 31-36.
引用本文: 冯娟萍, 王居里. 西天山阿希、京希-伊尔曼得金矿床成矿流体包裹体研究及矿化类型探讨[J]. 西北地质, 2005, 38(1): 31-36.
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FENG Juan-ping, WANG Ju-li. Study on fluid inclusions and discussion on gold mineralization styles of Axi, Jingxi-Yelmend gold deposits in Western Tianshan, Xinjiang[J]. Northwestern Geology, 2005, 38(1): 31-36.
Citation: FENG Juan-ping, WANG Ju-li. Study on fluid inclusions and discussion on gold mineralization styles of Axi, Jingxi-Yelmend gold deposits in Western Tianshan, Xinjiang[J]. Northwestern Geology, 2005, 38(1): 31-36.
shu

西天山阿希、京希-伊尔曼得金矿床成矿流体包裹体研究及矿化类型探讨

  • 西北大学地质学系, 陕西 西安 710069

  • 基金项目: 国家科技攻关项目(2001BA609A-07-10)

Study on fluid inclusions and discussion on gold mineralization styles of Axi, Jingxi-Yelmend gold deposits in Western Tianshan, Xinjiang

  • Department of Geology, Northwest University, Xi'an 710069, China

    摘要
  • 阿希、京希-伊尔曼得金矿床3个主成矿阶段形成的石英中的原生流体包裹体数量少、个体小,包裹体以单液相为主,气液两相者气液比小,一般为5%～10%。激光拉曼光谱成分分析显示液相成分以H2O为主,普遍含有一定量的CO2、CH4;气相中以CO2和CH4为主,含有较高的SO2和N2;一些样品中还出现了C2H4、C6H6、C4H6等有机化合物。其均一温度为90～275℃,成矿流体盐度为0～3.7wB(NaCleq)%,估算的成矿深度为0.40～0.80km左右,属于典型的浅成低温热液型金矿床。其成矿作用与强烈的次生石英岩化关系极为密切,发生了次生石英岩化矿化,形成含金次生石英岩型矿石。
    Study on fluid inclusions shows that there are two main types of primary fluid inclusions which are pure aqueous and aqueous existed in hydrothermal quarts in three mineralization stages of Axi,Jingxi-Yelmend gold deposits.These fluid inclusions are very small and sparse,ratios of gas toliquid in aqueous are 5%～10%.Components of these single fluid inclusion in samples were analyzed with a LRM,which indicate that liquids in these fluid inclusions mainly contain H2O,a side from CO2,CH4,chief components of gas in aqueous fluid inclusions are CO2,CH2 and much of SO2,N2 and small amounts of C2H4,C6H26,C4H6 in two samples.These inclusions have homogenizat on temperatures generally between 90℃ and 275℃ and salinities mostly from 0～3.7 wt% NaCleq.The fluid inclusion and geological data suggest that the minera lization took place in depths of 0.40～0.80 kmroughly in typical epithermal environment.The metallization was related to intense silicification,resulted of forming secondary quartzite.The auriferous secondary quartzite is one of important ore styles of Axi,Jingxi-Yelmend gold deposits in Western Tianshan.
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出版历程
收稿日期:  2004-11-20
修回日期:  2004-12-30
刊出日期:  2005-03-15

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