黔西南地区大厂锑矿流体包裹体和同位素地球化学研究
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摘要
选取黔西南大厂锑矿萤石为对象,开展流体包裹体和同位素地球化学研究。包裹体相态观察及显微测温结果显示,萤石的流体包裹体主要为气液两相包裹体和纯液相包裹体,包裹体测温结果显示成矿流体具有中-低温低盐度超高压的特点,表明成矿流体可能主要来源于深部。通过对大厂地区构造蚀变体同位素地球化学及产于黔西南构造蚀变体中典型金矿床同位素地球化学对比研究表明,成矿物质可能主要来源于深部,热液在上涌过程中混入地壳物质成矿。
In this paper,fluorite of antimony fluid inclusion of Dachang antimony ore is selected to be the study target,the inclusion phase observation and micro-thermometry shows fluid inclusion in fluorite of Dachang antimony ore mainly are gas-liquid two-phase inclusion and pure liquid inclusion,the inclusion temperature test shows the mineral fluid has the characteristics of medium-low temperature,low salinity and ultrahigh pressure,so the mineral liquid may come from deep area. By compare and study the altered body isotope geochemistry and altered body typical gold deposit isotope geochemistry in southwest Guizhou,it shows the mineral material may come from deep area,the hydrothermal upwelling and mix into the crust.
In this paper,fluorite of antimony fluid inclusion of Dachang antimony ore is selected to be the study target,the inclusion phase observation and micro-thermometry shows fluid inclusion in fluorite of Dachang antimony ore mainly are gas-liquid two-phase inclusion and pure liquid inclusion,the inclusion temperature test shows the mineral fluid has the characteristics of medium-low temperature,low salinity and ultrahigh pressure,so the mineral liquid may come from deep area. By compare and study the altered body isotope geochemistry and altered body typical gold deposit isotope geochemistry in southwest Guizhou,it shows the mineral material may come from deep area,the hydrothermal upwelling and mix into the crust.
引文
Hu R-Z,Su W-C,Bi X-W et al.,Geology and geochemistry of Carlin-type gold deposits in China.Mineralium Deposita[J].2002,37:378-392.
曹鸿水.黔西南“大厂层”形成环境及其成矿作用的探讨[J].贵州地质,1991,8(1):5-12.
陈翠华,何彬彬,顾雪祥等.右江沉积盆地演化与微细浸染型金矿床成矿作用关系探讨[J].地质与勘探,2004,40(1):21-25.
陈代演.滇东黔西区层控锑、汞矿床的元素组合及其产生原因初析[J].矿产与地质,1993,(04):247-252.
陈代演.贵州晴隆大厂锑矿成矿流体低温地球化学特征[J].矿物岩石地球化学通报,1992,(1):3-5.
刘建中,邓一明,夏勇等.Sbt的概念及其区域找矿意义探讨[A].第三届贵州地质矿产发展战略研讨会论文集[C].2005,4:65-67.
刘建中,夏勇,陶琰,付绍洪,杨成富,王泽鹏,吴文明,谭亲平,陈睿.贵州西南部SBT研究[M]。湖北:中国地质大学(武汉),2018.
刘建中,邓一明,刘川勤,夏勇,张兴春,陶琰.水银洞金矿床包裹体和同位素地球化学研究[J].贵州地质,2006,23(1):51-56.
刘建中,夏勇,陶琰,杨成富,王泽鹏,谭亲平,付绍洪,陈睿,吴文明.贵州西南部SBT与金锑矿成矿找矿[J].贵州地质,2014,31(4)267-272.
刘建中,杨成富,王泽鹏,王大福,祁连素,李俊海,胡承伟,徐良易.贵州省贞丰县水银洞金矿床地质研究[J].中国地质调查,2017,4(2):32-41.
刘显凡,倪师军,苏文超.滇黔桂微细浸染型金矿同位素地球化学特征与深源流体成矿[J].矿物岩石,1996,16(4):106-111.
卢焕章,范宏瑞,倪培等.流体包裹体[M].北京:科学出版社,2004.
曹鸿水.黔西南“大厂层”形成环境及其成矿作用的探讨[J].贵州地质,1991,8(1):5-12.
陈翠华,何彬彬,顾雪祥等.右江沉积盆地演化与微细浸染型金矿床成矿作用关系探讨[J].地质与勘探,2004,40(1):21-25.
陈代演.滇东黔西区层控锑、汞矿床的元素组合及其产生原因初析[J].矿产与地质,1993,(04):247-252.
陈代演.贵州晴隆大厂锑矿成矿流体低温地球化学特征[J].矿物岩石地球化学通报,1992,(1):3-5.
刘建中,邓一明,夏勇等.Sbt的概念及其区域找矿意义探讨[A].第三届贵州地质矿产发展战略研讨会论文集[C].2005,4:65-67.
刘建中,夏勇,陶琰,付绍洪,杨成富,王泽鹏,吴文明,谭亲平,陈睿.贵州西南部SBT研究[M]。湖北:中国地质大学(武汉),2018.
刘建中,邓一明,刘川勤,夏勇,张兴春,陶琰.水银洞金矿床包裹体和同位素地球化学研究[J].贵州地质,2006,23(1):51-56.
刘建中,夏勇,陶琰,杨成富,王泽鹏,谭亲平,付绍洪,陈睿,吴文明.贵州西南部SBT与金锑矿成矿找矿[J].贵州地质,2014,31(4)267-272.
刘建中,杨成富,王泽鹏,王大福,祁连素,李俊海,胡承伟,徐良易.贵州省贞丰县水银洞金矿床地质研究[J].中国地质调查,2017,4(2):32-41.
刘显凡,倪师军,苏文超.滇黔桂微细浸染型金矿同位素地球化学特征与深源流体成矿[J].矿物岩石,1996,16(4):106-111.
卢焕章,范宏瑞,倪培等.流体包裹体[M].北京:科学出版社,2004.