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江西金溪熊家山钼矿床微量元素地球化学特征及成矿机理.pdf

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AdvancesinGeosciences地球科学前沿,2012,2,233-245 doi:10.4236/ag.2012.24036PublishedOnlineDecember2012(http://www.hanspub.org/journal/ag.html) TheTraceElementsGeochemicalCharacteristicsand FormationMechanismofXiongjiashanMolybdenumDeposit, Jinxi,JiangxiProvince YongZhang1,JiayongPan1,JianguangLiu2,HaozhangWan2,HuiyunChen2,FengLai2 1CollegeofEarthSciences,EastChinaInstituteofTechnology,Fuzhou 2912GeologicalParty,JiangxiBureauofExplorationandDevelopmentforGeologyandMineralResources,Yintan Email:zhangyong@ecit.cn Received:Oct.26th,2012;revised:Nov.12th,2012;accepted:Nov.16th,2012 Abstract:TheXiongjiashanMolybdenumdepositaremainlyintheformofmolybdenite,whichenrichedintherock strataandspaceofthebrokenandfractured,andformedmolybdeniteorebodyalongthedirectionoftrendingveinand stockwork.Preliminarystudiessuggestthatitwasthemagmatichydrothermalquartzvein-typedeposits.Andthecon- temporarymagmaticrockshavethesamesourceintheregion,what’smore,thetectonicenvironmentsofcaledonian tectonicandYanshantectonicwascertainlysimilar,anythingelsethetectonicevolutionofthisareamayalsobeaman- ifestationofrepetitive.Traceelementcharacteristicsofwichshowthatthemagmaticrocksarefromthepartialmelt mixtureoflowercrustanduppermantle,suchasthecrust-mantlemixing.Andalsoitwasunderthecontinent-continent collisiontectonicenvironment.AndthecontentsofEuanomalythatisnotthesamedegree,whichcorrespondingto differentlevelsofthemiscibilityofthecrust-mantle.Extremelyfavorableenvironmentandcomplexstructures,which wasinfavorofformingtheMolybdenumdepositbythefluidfromtheformationofrock.Themineralizationfluidis closelyrelatedwiththemulti-stageveinsthatcorrespondingtothemagmaticactivity,whichcarryingore-formingele- mentsasCu,MoandthemineralizerelementsofSandsoon,latelymagmaticevolutionendedandtheXiongjiashan Molybdenumdepositformed. Keywords:Jingxi;XiongjashanMolybdenumDeposit;GeochemistryCharacter;DiagenesisandMineralization 江西金溪熊家山钼矿床微量元素地球化学特征及成矿机理 112222 张勇，潘家永，刘建光，万浩章，陈辉云，赖峰 1东华理工大学地球科学学院，抚州 2江西912地质大队地质勘察研究院