EVOLUTION OF THE CONTINENT CRUST AND URANIUM MINERALIZATION

(整期优先)网络出版时间:1996-06-15
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<正>Uraniumisatypicallithophileelement,havingoutstandinggeo-chemicalcharacteristicsofassociationwhithhighSiO2,peraluminousandmarginallyperalkalicrocks.Inevolutionprocessofallgeologicalhistory,uraniumgatherswithoutinterruptioninuppercrust.Urani-ummineralizationiscloselyrealtedwithevolutioncharacteristicsofthecontinentcrust.1.Itwasnotuntilthecontinentcrustevolvedtocertainmaturedegreethaturaniumbeganmetallization.TheoldesturaniumdepositontheearthoccurredintheDelanshiwa(Kapuwaer)district,which