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时间:2019-03-05
《黑龙江省铜山斑岩铜矿床流体包裹体研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、10000569/2009/025(11)299506ActaPetrologicaSinica岩石学报黑龙江省铜山斑岩铜矿床流体包裹体研究1,21,311,314武广刘军钟伟朱明田糜梅万秋1,21,311,314WUGuang,LIUJun,ZHONGWei,ZHUMingTian,MEIMeiandWANQiu1.中国科学院广州地球化学研究所成矿动力学重点实验室,广州5106402.中国地质科学院矿产资源研究所,北京1000373.中国科学院研究生院,北京1000494.合肥工业大学资源与环境工
2、程学院,合肥2300091.KeyLaboratoryofMetallogenicDynamics,GuangzhouInstituteofGeochemistry,ChineseAcademyofSciences,Guangzhou510640,China2.InstituteofMineralResources,ChineseAcademyofGeologicalSciences,Beijing100037,China3.GraduateSchoolofChineseAcademyofSciences,
3、Beijing100049,China4.SchoolofResourcesandEnvironmentalEngineering,HefeiUniversityofTechnology,Hefei230009,China20090916收稿,20091015改回.WuG,LiuJ,ZhongW,ZhuMT,MeiMandWanQ.2009.FluidinclusionstudyoftheTongshanporphyrycopperdeposit,Heilongjiangprovince,China
4、.ActaPetrologicaSinica,25(11):2995-3006AbstractThelargesizedTongshanporphyrycopperdepositislocatedinthenorthwesternpartofLesserHingganRange,whichisoneofthemostfamousporphyrycopperdepositsinthenortheastsectionofCentralAsianMongolianHingganorogenicbelt.It
5、scopperorebodiesaremainlyhostedinCaledoniangranodioriteandMiddleOrdovicianDubaoshanFormationandesiteandtuff.Coppermineralizationiscloselyassociatedwithsilicificationandsericitization.Inquartzveinsthreetypesoffluidinclusionsaredistinguished,namelyaqueoustwo
6、phase,CO2bearingphaseanddaughtermineralbearingmultiphaseinclusions.Theevolutionofthehydrothermalmineralizationsystemincludesthreestages.Fluidinclusionsoftheearlystageinquartzaremainlyaqueoustwophaseinclusionwithminordaughtermineralbearingmultiphaseinc
7、lusion,theirhomogenizationtemperaturesandsalinitiesvaryfrom420℃to>550℃andfrom13.72wt%to59.76wt%NaClequivalent,respectively.ThemiddlestagefluidinclusionsaremainlycomposedofaqueoustwophaseinclusionandCO2bearingphaseinclusion,theirhomogenizationtemperature
8、sandsalinitiesvaryfrom241℃to417℃andfrom2.96wt%to14.04wt%NaClequivalent,respectively.Themiddlestageismainstageoforeformingmaterialenrichment,withaffinitiestoH2OCO2NaClfluidsystem.Thelatestagefluidinclusion
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