【isotope geochemistry】Sulfur-andLead-IsotopeGeochemistryof

时间：2016-11-23 12:41:06 作者：QingfengDing；WeiYan

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【摘要】：Thesmall-scaleBalugouCu-Pb-Znskarndeposit(45298tonnagesoforeat0.1%to3.99%Cu,0.20%to0.43%Pband0.76%to10.92%Zn)islocatedintheWulonggouareaintheeasternKunlunorogen,NWChina.Oredepositionisspatiallyandtemporallyrelatedwiththepre-collisionalAnisianBalugougranites(~244Ma).ThemineralizationhostedbythecontactbetweenmarblebedswithinthePaleo-ProterozoicJinshuikouGroupandBalugougranites,wasstructurallyandlithologicallycontrolled.ThemineralogyoftheBalugoudepositincludesanearlysimpleskarnmineralgangue(epidotewithlittlediopside)andalatecomplicatedquartzsulfideassemblage(pyrite,pyrrhotite,chalcopyrite,sphalerite,galena,bornite,quartz,carbonateandchlorite).Theδ34Svaluesofeighteensulfidesrangefrom-2.1‰to+2.8‰,withanaverageof+0.07‰,andthecalculatedδ34SH2SvaluesforH2Sinhydrothermalfluidsrangefrom-3.2‰to+2.4‰,withanaverageof+0.03‰,suggestingarelativelyhomogeneousmagmatic(±mantle)source,withsulfurproduceddirectlybytheBalugougranites.Thesixteensulfideshave206Pb/204Pbratiosfrom18.3674to18.3841,207Pb/204Pbratiosfrom15.6346to15.6415,and208Pb/204Pbratiosfrom38.4555to38.4850,whichareclosetothoseofK-feldsparsfromtheBalugougranites,butarefarawayfromage-correctedleadisotopicratiosofsixwall-rocksamples.SoitwasconsideredthatthePbsourcesofsulfidesmustbealmostderivedfromtheBalugougranitesratherthantheolderwall-rocks.Collectively,it'ssuggestedthattheBalugouCu-Pb-Zndepositbelongstoskarndeposit,andthesulfurandleaddepositedinitwereleachedfromtheAnisianBalugougranites.
【论文正文预览】：Ding,Q.F.,Yan,W.,Zhang,B.L.,2016.Sulfur-andLead-IsotopeGeochemistryoftheBalugouCu-Pb-ZnSkarnDepositintheWulonggouAreaintheEasternKunlunOrogen,NWChina.JournalofEarthScience,27(5):740–750.doi:10.1007/s12583-015-0574-3.http://en.earth-s
【文章分类号】：P618.2;P597
【稿件关键词】：BalugouskarndepositWulonggouareaeasternKunlunorogensulfurisotopeleadisotope
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【稿件标题】：【isotope geochemistry】Sulfur-andLead-IsotopeGeochemistryoftheBalugouCu-Pb-ZnSkarnDepositintheWulonggouAreaintheEasternKunlunOrogen,NWChina
【作者单位】：College
【发表期刊期数】：《JournalofEarthScience》2016年05期
【期刊简介】：0......更多JournalofEarthScience杂志社(http://www.400qikan.com/qk/7897/)投稿信息
【版权所有人】：QingfengDing；WeiYan；BenlongZhang；