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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10000569/2017/033(02)033953 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
1KeyLaboratoryofMineralResources,InstituteofGeologyandGeophysics,ChineseAcademyofSciences,Beijing100029,China
2UniversityofChineseAcademyofSciences,Beijing100049,China
3StateKeyLaboratoryofGeologicalProcessesandMineralResources,ChinaUniversityofGeosciences,Wuhan430074,China
4StateKeyLaboratoryofLithosphericEvolution,InstituteofGeologyandGeophysics,ChineseAcademyofSciences,Beijing100029,China
20141230收稿,20160531改回
TangDM,QinKZ,XueSC,MaoYJ,TianY,LiuYSandMaoQ2017NatureofprimitivemagmasofEarlyPermian
basaltsinTuhabasin,Xinjiang:ConstraintsfrommeltinclusionsActaPetrologicaSinica,33(2):339-353
Abstract ThePermianbasaltsintheeasternTianshan,NEXinjiang,mostlydistributealongtheENEfaultinthisareaTheArAr
ageofthebasaltsintheTuhabasinis298MaThisconfirmsthattheTuhabasaltiscoevalwithformerbasaltsandsulfidebearing
maficultramaficintrusionintheTianshanregionTheTuhabasaltshavesimilarcompositionalfeaturestoislandarctholeiitesand
continentalarcbasalts,LREEenrichmentandnegativeNbandTaanomaly,andareprobablyrelatedwithmantlemetasomatizedby
subductionslabTheTuhabasaltshavefresholivineandplagioclasephenocrystsandinolivinephenocrystswhichoccurredmanymelt
inclusions(MI)Theopaquematerialinthemeltinclusionaremagnetite,suggesthighFeandoxygenfugacitywhentheformationof
meltinclusionsThecontentsofmeltinclusionsshowtwotypesofhighandlowMgOFurthermore,MIwithhighMgOcontenthaslow
SiO,traceelementsandREEabundance;maybeindicatethecharacter
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