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吐哈盆地早二叠世玄武岩原始岩浆性质来自熔融包裹体-岩石学报.PDF

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10000569/2017/033(02)033953 ActaPetrologicaSinica 岩石学报 吐哈盆地早二叠世玄武岩原始岩浆性质:来自熔融 包裹体成分的制约 1 1,2 1,2 1 1 3 4 唐冬梅  秦克章  薛胜超  毛亚晶 田野 刘勇胜 毛骞 1 1,2 1,2 1 1 3 4 TANGDongMei,QINKeZhang ,XUEShengChao ,MAOYaJing,TIANYe,LIUYongShengandMAOQian 1中国科学院矿产资源研究重点实验室,中国科学院地质与地球物理研究所,北京 100029 2中国科学院大学,北京 100049 3地质过程与矿产资源国家重点实验室,中国地质大学,武汉 430074 4岩石圈演化国家重点实验室,中国科学院地质与地球物理研究所,北京 100029 1KeyLaboratoryofMineralResources,InstituteofGeologyandGeophysics,ChineseAcademyofSciences,Beijing100029,China 2UniversityofChineseAcademyofSciences,Beijing100049,China 3StateKeyLaboratoryofGeologicalProcessesandMineralResources,ChinaUniversityofGeosciences,Wuhan430074,China 4StateKeyLaboratoryofLithosphericEvolution,InstituteofGeologyandGeophysics,ChineseAcademyofSciences,Beijing100029,China 20141230收稿,20160531改回 TangDM,QinKZ,XueSC,MaoYJ,TianY,LiuYSandMaoQ2017NatureofprimitivemagmasofEarlyPermian basaltsinTuhabasin,Xinjiang:ConstraintsfrommeltinclusionsActaPetrologicaSinica,33(2):339-353 Abstract  ThePermianbasaltsintheeasternTianshan,NEXinjiang,mostlydistributealongtheENEfaultinthisareaTheArAr ageofthebasaltsintheTuhabasinis298MaThisconfirmsthattheTuhabasaltiscoevalwithformerbasaltsandsulfidebearing maficultramaficintrusionintheTianshanregionTheTuhabasaltshavesimilarcompositionalfeaturestoislandarctholeiitesand continentalarcbasalts,LREEenrichmentandnegativeNbandTaanomaly,andareprobablyrelatedwithmantlemetasomatizedby subductionslabTheTuhabasaltshavefresholivineandplagioclasephenocrystsandinolivinephenocrystswhichoccurredmanymelt inclusions(MI)Theopaquematerialinthemeltinclusionaremagnetite,suggesthighFeandoxygenfugacitywhentheformationof meltinclusionsThecontentsofmeltinclusionsshowtwotypesofhighandlowMgOFurthermore,MIwithhighMgOcontenthaslow SiO,traceelementsandREEabundance;maybeindicatethecharacter
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