江西银山铅锌矿床闪锌矿与石英流体包裹体对比研究
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摘要
赣东北地区是我国重要的铜铅锌金银多金属矿集区,银山铅锌(银)铜(金)多金属矿床是赣东北地区一个重要的大型次火山热液型多金属矿床。银山铅锌矿发育有闪锌矿-方铅矿-石英脉,前人研究认为金属矿物与脉石矿物为伴生关系,但是没有强调它们的成因上的联系。本次研究开展了矿石矿物中闪锌矿和伴生脉石矿物中石英的流体包裹体对比研究。通过详细的岩相学观察、显微测温、显微激光拉曼探针工作,对伴生石英脉和闪锌矿内原生包裹体,伴生石英脉中的晚期微细石英脉和闪锌矿内部次生包裹体进行流体特征的对比研究。研究结果显示,伴生石英脉原生流体包裹体比闪锌矿的原生包裹体的平均均一温度高约30℃,明显富集CH4、N2、CH4、CO2等挥发份,伴生石英脉中的晚期微细石英脉流体包裹体比闪锌矿次生包裹体的平均均一温度高23℃。闪锌矿原生包裹体与想伴生的早期石英脉在平均均一温度有所差别,气相成分差异明显,均表明矿石矿物与伴生脉石矿物可能形成于不同的地质环境,具有不同的温度和流体成分。
Dexing district of Northeast Jiangxi Province is one of the large ore concentrating areas in the eastern metallogenic belt of China.Yinshan lead-zinc-copper(gold)polymetallic deposit is one of large subvolcanic hydrothermal ore deposit,China.Mineralization consists of quartz,sphalrite,galena,and various amounts of base metal sulfides in veins.Texture evidence shows that the ore minerals(e.g.sphalerite and galena)are spatially associated with quartz veins and veinlets.Previous studies of fluid inclusions mainly focus on quartz vein associated with sphalerite.In this study,we use petrography,microthermometry and Raman analysis to study on the fluid inclusions in sphalerite and quartz in early quartz veins,and in late quartz veinlets.The results show that there are different from the types of fluid inclusions,homogenization temperatures(Th)and salinity between sphalerite and coexisting quartz veins.The early quartz veins contain two-phase,aqueous-carbonic inclusions,and have average homogenization temperature of 249.8℃ and salinity of 8.3% NaCleqv.The two-phase,aqueous inclusions occur in sphalerite and late quartz veinlets,with Th of 224.0℃,168.2℃,and salinity of 8.1% NaCleqv,4.3%NaCleqv,respectively.Therefore,we conclude that the fluid inclusions in gangue minerals in Yinshan deposit can not provide reasonable estimates of the depositional conditions of the ore minerals,even though they are intimately intergrown.
Dexing district of Northeast Jiangxi Province is one of the large ore concentrating areas in the eastern metallogenic belt of China.Yinshan lead-zinc-copper(gold)polymetallic deposit is one of large subvolcanic hydrothermal ore deposit,China.Mineralization consists of quartz,sphalrite,galena,and various amounts of base metal sulfides in veins.Texture evidence shows that the ore minerals(e.g.sphalerite and galena)are spatially associated with quartz veins and veinlets.Previous studies of fluid inclusions mainly focus on quartz vein associated with sphalerite.In this study,we use petrography,microthermometry and Raman analysis to study on the fluid inclusions in sphalerite and quartz in early quartz veins,and in late quartz veinlets.The results show that there are different from the types of fluid inclusions,homogenization temperatures(Th)and salinity between sphalerite and coexisting quartz veins.The early quartz veins contain two-phase,aqueous-carbonic inclusions,and have average homogenization temperature of 249.8℃ and salinity of 8.3% NaCleqv.The two-phase,aqueous inclusions occur in sphalerite and late quartz veinlets,with Th of 224.0℃,168.2℃,and salinity of 8.1% NaCleqv,4.3%NaCleqv,respectively.Therefore,we conclude that the fluid inclusions in gangue minerals in Yinshan deposit can not provide reasonable estimates of the depositional conditions of the ore minerals,even though they are intimately intergrown.
引文
[1]江西铜业集团地勘工程有限公司.2009.江西省德兴市银山铜铅锌矿接替资源勘查项目报告
Bailly L,Bouchot V,Beny C and Milesi JP.2000.Fluid inclusion studyof stibnite using infrared microscopy:An example from the Brouzilsantimony deposit(Vendee,Armorican massif,France).EconomicGeology,95(1):221-226
Bailly L,Grancea Land Kouzmanov K.2002.Infrared microthermometryand chemistry of wolframite from the Baia Sprie epithermal deposit,Romania.Economic Geology,97(2):415-423
Bodnar RJ.1993.Revised equation and table for determining the freezingpoint depression of H2O-NaCl solutions.Geochimica etCosmochimica Acta,57(3):683-684
Campbell AR,Hackbarth CJ,Plumlee GS and Petersen U.1984.Internal features of ore minerals seen with the infrared microscope.Economic Geology,79(6):1387-1392
Campbell AR and Robinson-Cook S.1987.Infrared fluid inclusionmicrothermometry on coexisting wolframite and quartz.EconomicGeology,82(6):1640-1645
Chen YJ,Ni P,Fan HRet al.2007.Diagnostic fluid inclusions ofdifferent types hydrothermal gold deposits.Acta Petrologica Sinica,23(9):2085-2108(in Chinese with English abstract)
Fan HR,Xie YH,Zheng XZ,Wang YL.2000.Ore-forming fluids inhydrothermal breccia-related gold mineralization in Qiyugou,HenanProvince.Acta Petrologica Sinica,16(4):559-563(in Chinesewith English abstract)
Gilder SA,Gill J,Coe RS,Zhao X and Liu Z.1996.Isotopic andpaleomagnetic constraints on the Mesozoic tectonic evolution of southChina.Journal of Geophysical Research,101(B7):16137-16154
Lindaas SE,Kulis J and Campbell AR.2002.Near-infrared observationand microthermometry of pyrite-hosted fluid inclusions.EconomicGeology,97(3):603-618
Lu HZ.2000.High temperature,salinity and high concentrated ore metalmagmatic fluids:An example from Grasberg Cu-Au porphyrydeposit.Acta Petrologica Sinica,16(4):465-472(in Chinese withEnglish abstract)
Lu HZ,Fan HR,Ni Pet al.2004.Fluid Inclusion.Beijing:SciencePress,406-419(in Chinese)
Lüders V and Ziemann M.1999.Possibilities and limits of infrared lightmicrothermometry applied to studies of pyrite-hosted fluid inclusions.Chemical Geology,154(1-4):169-178
Lueders V.1996.Contribution of infrared microscopy to fluid inclusionstudies in some opaque minerals(wolframite,stibnite,bournonite):Metallogenic implications.Economic Geology,91(8):1462-1468
Ni P,Tian JH,Zhu XTet al.2005.Fluid inclusion studies on footwallstringer system mineralization of Yongping massive copper deposit,Jiangxi Province,China.Acta Petrologica Sinica,21(5):1339-1346(in Chinese with English abstract)
Ni P,Huang JB,Wang XD,Jiang SY and Ling HF.2006.Infrared fluidinclusion microthermometry on coexisting wolframite and quartz fromDajishan tungsten deposit,Jiangxi Province,China.Geochimica etCosmochimica Acta,70(Supp.):444
Ni P,Zhu X,Wang RC,Shen K,Zhang ZM,Qiu JS and Huang JP.2008.Constraining ultrahigh-pressure(UHP)metamorphism andtitanium ore formation from an infrared microthermometric study offluid inclusions in rutile fromDonghai UHP eclogites,eastern China.Geological Society of America Bulletin,120(9-10):1296-1304
Roedder E.1984.Fluid inclusions.Reviews in Mineralogy,12:644
Rosiere CA and Rios FJ.2004.The origin of hematite in high-grade ironores based on infrared microscopy and fluid inclusion studies:Theexample of the Conceicao mine,Quadrilátero Ferrífero,Brazil.Economic Geology,99(3):611-624
Wang TG,Ni P,Wang GG and Zhang T.2008.Identification andsignificance of methane rich fluid inclusions in Changba Pb-Zndeposit,Gansu Provinee.Acta Petrologica Sinica,24(9):2105-2112(in Chinese with English abstract)
Wang XD.2010.Study on the ore-forming fluids of wolframite-quartz-vein type yungsten deposits from southern Jiangxi Province.Ph.D.Dissertation.Nanjing:Nanjing University,1-153(in Chinese withEnglish summary)
Wang XD,Ni P,Zhang BS and Wang TG.2010.Fluid inclusion studiesof the Pangushan quartz-vein type tungsten deposit in southernJiangxi Province.Acta Petrologica Et Mineralogica,29(5):539-550(in Chinese with English abstract)
Ye S,Ye DL,Mo XX,Tai DQ,Wang Qand Ye N.1999.Relationshipsbetween the deep sourced magmatism and metallogeny indexingdensely ore deposited area,Jiangxi Province,china.Geological Journal of China Universities,5(4):395-404(inChinese with English abstract)
Zhang DH,Zhang WH and Liu W.2003.The high salinity fluidinclusions and its significance in ore origin in the Yinshanpolymetallic deposit.Acta Petrologica Sinica,19(1):173-180(inChinese with English abstract)
Zhang DH,Xu G,Zhang W and Golding SD.2007.High salinity fluidinclusions in the Yinshan polymetallic deposit from the Le-Demetallogenic belt in Jiangxi Province,China:Their origin andimplications for ore genesis.Ore Geology Reviews,31(1-4):247-260
Zhang LG and Liu JX.1996.H and O isotope study on the water-rockinteraction system of the Yinshan(Cu)-Pb-Zn-Ag mine,JiangxiProvince.Acta Geologica Sinica,70(1):48-60(in Chinese withEnglish abstract)
Zhang WH,Zhang DH and Liu M.2003.Study on ore-formingmechanisms of the Yinshan Cu-Pb-Zn-Au-Ag deposits,JiangxiProvince.Acta Petrologica Sinica,19(2):242-290(in Chinesewith English abstract)
Zhao KD,Jiang SY,Zhu JC,Dai BZ,Jiang YHand Ling HF.2010.Hfisotopic composition of zircons from the Huashan-Guposhan intrusivecomplex and their mafic enclaves in northeastern Guangxi:Implication for petrogenesis.Chinese Science Bulletin,55(6):509-519
Zhu X,Ni P,Huang JB and Wang TG.2007.Introduction to Infraredmicro-thermometric technique:An example fromfluid inclusion studyin rutile deposits.Acta Petrologica Sinica,23(9):2052-2058(inChinese with English abstract)
Chinese with English abstract)Zhu X.1983.The Geology of the Dexing Porphyry Copper Ore Field.Beijng:Geological Publishing House,1-336(in Chinese)
陈衍景,倪培,范宏瑞等.2007.不同类型热液金矿系统的流体包裹体特征.岩石学报,23(9):2085-2108
范宏瑞,谢奕汉,郑学正,王英兰.2000.河南祁雨沟热液角砾岩体型矿床成硫流体研究.岩石学报,16(4):559-563
卢焕章.2000.高盐度、高温和高成矿金属的岩浆成矿流体-以格拉斯伯格Cu-Au矿为例.岩石学报,16(4):465-472
卢焕章,范宏瑞,倪培等.2004.流体包裹体.北京:科学出版社,406-419
倪培,田京辉,朱筱婷等.2005.江西永平铜矿下盘网脉状矿化的流体包裹体研究.岩石学报,21(5):1339-1346
王天刚,倪培,王国光等.2008.甘肃厂坝铅锌矿富甲烷流体包裹体的发现及其意义.岩石学报,24(9):2105-2112
王旭东.2010.赣南石英脉型黑钨矿床成矿流体研究.博士学位论文.南京:南京大学,1-153
王旭东,倪培,张伯声,王天刚.2010.江西盘古山石英脉型钨矿床流体包裹体研究.岩石矿物学杂志,29(5):539-550
叶松,叶德隆,莫宣学,邰道乾,王群,叶枬.1999.深源岩浆作用与江西德兴大型矿集区成矿关系.高校地质学报,5(4):395-404
张德会,张文淮,刘伟.2003.江西银山多金属矿床高盐度包裹体及其成因意义.岩石学报,19(1):173-180
张理刚,刘敬秀.1996.江西银山(铜)-铅-锌-银矿床水-岩体系氢与氧同位素研究.地质学报,70(1):48-60
张文淮,张德会,刘敏.2003.江西银山铜铅锌金银矿床成矿流体及成矿机制研究.岩石学报,19(2):242-250
赵葵东,蒋少涌,朱金初,李亮,戴宝章,姜耀辉,凌洪飞.2009.桂东北花山-姑婆山侵入杂岩体和暗色包体的锆石微区Hf同位素组成及其成岩指示意义.科学通报,54(23):3716-3725
朱霞,倪培,黄建宝,王天刚.2007.显微红外测温技术及其在金红石矿床中的应用.岩石学报,23(9):2052-2058
朱训.1983.德兴斑岩铜矿.北京:地质出版社,1-366
Bailly L,Bouchot V,Beny C and Milesi JP.2000.Fluid inclusion studyof stibnite using infrared microscopy:An example from the Brouzilsantimony deposit(Vendee,Armorican massif,France).EconomicGeology,95(1):221-226
Bailly L,Grancea Land Kouzmanov K.2002.Infrared microthermometryand chemistry of wolframite from the Baia Sprie epithermal deposit,Romania.Economic Geology,97(2):415-423
Bodnar RJ.1993.Revised equation and table for determining the freezingpoint depression of H2O-NaCl solutions.Geochimica etCosmochimica Acta,57(3):683-684
Campbell AR,Hackbarth CJ,Plumlee GS and Petersen U.1984.Internal features of ore minerals seen with the infrared microscope.Economic Geology,79(6):1387-1392
Campbell AR and Robinson-Cook S.1987.Infrared fluid inclusionmicrothermometry on coexisting wolframite and quartz.EconomicGeology,82(6):1640-1645
Chen YJ,Ni P,Fan HRet al.2007.Diagnostic fluid inclusions ofdifferent types hydrothermal gold deposits.Acta Petrologica Sinica,23(9):2085-2108(in Chinese with English abstract)
Fan HR,Xie YH,Zheng XZ,Wang YL.2000.Ore-forming fluids inhydrothermal breccia-related gold mineralization in Qiyugou,HenanProvince.Acta Petrologica Sinica,16(4):559-563(in Chinesewith English abstract)
Gilder SA,Gill J,Coe RS,Zhao X and Liu Z.1996.Isotopic andpaleomagnetic constraints on the Mesozoic tectonic evolution of southChina.Journal of Geophysical Research,101(B7):16137-16154
Lindaas SE,Kulis J and Campbell AR.2002.Near-infrared observationand microthermometry of pyrite-hosted fluid inclusions.EconomicGeology,97(3):603-618
Lu HZ.2000.High temperature,salinity and high concentrated ore metalmagmatic fluids:An example from Grasberg Cu-Au porphyrydeposit.Acta Petrologica Sinica,16(4):465-472(in Chinese withEnglish abstract)
Lu HZ,Fan HR,Ni Pet al.2004.Fluid Inclusion.Beijing:SciencePress,406-419(in Chinese)
Lüders V and Ziemann M.1999.Possibilities and limits of infrared lightmicrothermometry applied to studies of pyrite-hosted fluid inclusions.Chemical Geology,154(1-4):169-178
Lueders V.1996.Contribution of infrared microscopy to fluid inclusionstudies in some opaque minerals(wolframite,stibnite,bournonite):Metallogenic implications.Economic Geology,91(8):1462-1468
Ni P,Tian JH,Zhu XTet al.2005.Fluid inclusion studies on footwallstringer system mineralization of Yongping massive copper deposit,Jiangxi Province,China.Acta Petrologica Sinica,21(5):1339-1346(in Chinese with English abstract)
Ni P,Huang JB,Wang XD,Jiang SY and Ling HF.2006.Infrared fluidinclusion microthermometry on coexisting wolframite and quartz fromDajishan tungsten deposit,Jiangxi Province,China.Geochimica etCosmochimica Acta,70(Supp.):444
Ni P,Zhu X,Wang RC,Shen K,Zhang ZM,Qiu JS and Huang JP.2008.Constraining ultrahigh-pressure(UHP)metamorphism andtitanium ore formation from an infrared microthermometric study offluid inclusions in rutile fromDonghai UHP eclogites,eastern China.Geological Society of America Bulletin,120(9-10):1296-1304
Roedder E.1984.Fluid inclusions.Reviews in Mineralogy,12:644
Rosiere CA and Rios FJ.2004.The origin of hematite in high-grade ironores based on infrared microscopy and fluid inclusion studies:Theexample of the Conceicao mine,Quadrilátero Ferrífero,Brazil.Economic Geology,99(3):611-624
Wang TG,Ni P,Wang GG and Zhang T.2008.Identification andsignificance of methane rich fluid inclusions in Changba Pb-Zndeposit,Gansu Provinee.Acta Petrologica Sinica,24(9):2105-2112(in Chinese with English abstract)
Wang XD.2010.Study on the ore-forming fluids of wolframite-quartz-vein type yungsten deposits from southern Jiangxi Province.Ph.D.Dissertation.Nanjing:Nanjing University,1-153(in Chinese withEnglish summary)
Wang XD,Ni P,Zhang BS and Wang TG.2010.Fluid inclusion studiesof the Pangushan quartz-vein type tungsten deposit in southernJiangxi Province.Acta Petrologica Et Mineralogica,29(5):539-550(in Chinese with English abstract)
Ye S,Ye DL,Mo XX,Tai DQ,Wang Qand Ye N.1999.Relationshipsbetween the deep sourced magmatism and metallogeny indexingdensely ore deposited area,Jiangxi Province,china.Geological Journal of China Universities,5(4):395-404(inChinese with English abstract)
Zhang DH,Zhang WH and Liu W.2003.The high salinity fluidinclusions and its significance in ore origin in the Yinshanpolymetallic deposit.Acta Petrologica Sinica,19(1):173-180(inChinese with English abstract)
Zhang DH,Xu G,Zhang W and Golding SD.2007.High salinity fluidinclusions in the Yinshan polymetallic deposit from the Le-Demetallogenic belt in Jiangxi Province,China:Their origin andimplications for ore genesis.Ore Geology Reviews,31(1-4):247-260
Zhang LG and Liu JX.1996.H and O isotope study on the water-rockinteraction system of the Yinshan(Cu)-Pb-Zn-Ag mine,JiangxiProvince.Acta Geologica Sinica,70(1):48-60(in Chinese withEnglish abstract)
Zhang WH,Zhang DH and Liu M.2003.Study on ore-formingmechanisms of the Yinshan Cu-Pb-Zn-Au-Ag deposits,JiangxiProvince.Acta Petrologica Sinica,19(2):242-290(in Chinesewith English abstract)
Zhao KD,Jiang SY,Zhu JC,Dai BZ,Jiang YHand Ling HF.2010.Hfisotopic composition of zircons from the Huashan-Guposhan intrusivecomplex and their mafic enclaves in northeastern Guangxi:Implication for petrogenesis.Chinese Science Bulletin,55(6):509-519
Zhu X,Ni P,Huang JB and Wang TG.2007.Introduction to Infraredmicro-thermometric technique:An example fromfluid inclusion studyin rutile deposits.Acta Petrologica Sinica,23(9):2052-2058(inChinese with English abstract)
Chinese with English abstract)Zhu X.1983.The Geology of the Dexing Porphyry Copper Ore Field.Beijng:Geological Publishing House,1-336(in Chinese)
陈衍景,倪培,范宏瑞等.2007.不同类型热液金矿系统的流体包裹体特征.岩石学报,23(9):2085-2108
范宏瑞,谢奕汉,郑学正,王英兰.2000.河南祁雨沟热液角砾岩体型矿床成硫流体研究.岩石学报,16(4):559-563
卢焕章.2000.高盐度、高温和高成矿金属的岩浆成矿流体-以格拉斯伯格Cu-Au矿为例.岩石学报,16(4):465-472
卢焕章,范宏瑞,倪培等.2004.流体包裹体.北京:科学出版社,406-419
倪培,田京辉,朱筱婷等.2005.江西永平铜矿下盘网脉状矿化的流体包裹体研究.岩石学报,21(5):1339-1346
王天刚,倪培,王国光等.2008.甘肃厂坝铅锌矿富甲烷流体包裹体的发现及其意义.岩石学报,24(9):2105-2112
王旭东.2010.赣南石英脉型黑钨矿床成矿流体研究.博士学位论文.南京:南京大学,1-153
王旭东,倪培,张伯声,王天刚.2010.江西盘古山石英脉型钨矿床流体包裹体研究.岩石矿物学杂志,29(5):539-550
叶松,叶德隆,莫宣学,邰道乾,王群,叶枬.1999.深源岩浆作用与江西德兴大型矿集区成矿关系.高校地质学报,5(4):395-404
张德会,张文淮,刘伟.2003.江西银山多金属矿床高盐度包裹体及其成因意义.岩石学报,19(1):173-180
张理刚,刘敬秀.1996.江西银山(铜)-铅-锌-银矿床水-岩体系氢与氧同位素研究.地质学报,70(1):48-60
张文淮,张德会,刘敏.2003.江西银山铜铅锌金银矿床成矿流体及成矿机制研究.岩石学报,19(2):242-250
赵葵东,蒋少涌,朱金初,李亮,戴宝章,姜耀辉,凌洪飞.2009.桂东北花山-姑婆山侵入杂岩体和暗色包体的锆石微区Hf同位素组成及其成岩指示意义.科学通报,54(23):3716-3725
朱霞,倪培,黄建宝,王天刚.2007.显微红外测温技术及其在金红石矿床中的应用.岩石学报,23(9):2052-2058
朱训.1983.德兴斑岩铜矿.北京:地质出版社,1-366
目录