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时间:2020-04-27
《中条山落家河铜矿流体包裹体初步研究-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、1000-0569/2013/029(07)-2583—92ActaPetrologicaSinica岩石学报中条山落家i-'IN矿流体包裹体初步研究姜玉航罗勇。牛贺才郭双龙李宁波,JIANGYuHang,LU0Y0ng,NIUHeCai,GUOShuangL0ngandLINingB0,1.中国科学J广州地球化学研究所矿物学与成矿学重点实验室,广州5106402.中国科学院大学,北京1000493.南阳师范学院环境科学与旅游学院,南阳4730614.中条山有色金属集团有限公司,垣曲0437001.Ke
2、yLaboratoryofMineralogyandMetallogeny,GuangzhouInstituteofGeochemistry,ChineseAcademyofSciences,Guangzhou510640,China2.UniversityofChineseAcademyofSciences,Beijing100049,China3.CollegeofEnvironmentScienceandTourism,NanyangNormalUniversity,Nanyang473061,C
3、hina4.ZhongtiaoshanNon—FerrousMetalsGroupCo.,Ltd.,Yuanqu043700,China2013-02—13收稿.2013.05—30改回.JiangYH。LuoY。NiuHC,GuoSLandLiNB.2013.StudyonfluidinclusionsfromtheLuojiahecopperdepositinZhongtiaoshanregion.ActaPetrologicaSinica,29(7):2583—2592AbstractLuojia
4、hecopperdepositislocatedintheLuojiahetectonic—erosionwindow,southeasternofZhongtiaorift.Cu—mineralizationoccursinthemetamorphicvolcanic—sedimentsoftheSongjiashanFormationwhichiscoveredbyMesoproterozoicandesiticrocksoftheXiyangheGroup.Thispaperfocuse$onth
5、estudyoffluidinclusionsinore—bearingquartzveinswhichareintergrowthwithore-body,todiscussthefeaturesofore—formingfluidsandtheimplicationsforCu—mineralization.Basedonsystematicallypetrographicobservation,fluidinclusionsareclassifiedintofivetypesbyphases:Pu
6、revaporinclusions(I-type),pureaqueousinclusions(II—type),vapor-richinclusions(III—type),aqueous—richinclusions(IV—type)anddaughtermineral—bearinginclusions(V—type).II—typeandIV—typeinclusionsaredominantintheupperorebody.andI-typeandV—typeinclusionsaredom
7、inantinthelowerorebody.ThecoexistenceofV—typewithI-typeinclusionsshowsthefeaturesofboilingassemblage.MicrothermometrydataindicatesthattherearetwodifferentsystemsofCaC12一NaC1一H2Osystem(IVal—type)andNaC1一H2Osystem(IVa2一type)intheliquid—richaqueousinclusion
8、s(IVatypes),correspondingtotheupperquartzveinsandthelowerquartzveins.Bothhomogenizationtemperature()andsalinityofthetwotypesaredifferent,indicatingthattheore—formingfluidsmightoriginatefromtwodifferentfluidsources.TheThofI
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