A Geochemical Study of Rare Earth and Trace Elements in Cassiterite from Dachang Sn- Polymetallic Ore Field , Guangxi Province-中国Betway体育网页登陆

摘要 Rareearthandtraceelementsaredeterminedforcassiteritefromavein—typeorebody,alensandasheeted-typeorebodyintheDachangSn-polymetallicorefield,GuangxiProvince.Cassiteritefromthevein-typeorebodyhasrareearthandtraceelementcharacteristicssimilartothatofDachangbiotitegraniteofLateYanshanage,showinganinheritableandageneticrelationship.Cassiteritesfromthelensandsheeted-veinorebodyhaverareearthandtraceelementcharacteristicsgreatlydifferentfromthoseofthevein-typecassiteriteandthegranite,showingdistinctlyhighercontentsoftheore-formingelementsAs,Sb.Zn.Agetc.andapositiveEuanomalyandanegativeCeanomaly.Thedifferenceofrareearthandtraceelementcharacteristicsforcassiteritefromtwokindsoforebodiesreflectsthecompositionaldifferenceofore-formingsolutions.Authorssuggestthatthelensandsheeted—veinorebodywasofnonmagmatic,mixedwithundergroundhotbrineorigin,andthatthiskindofhotbrinereactedwithDevonian

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A Geochemical Study of Rare Earth and Trace Elements in Cassiterite from Dachang Sn- Polymetallic Ore Field , Guangxi Province

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