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甘肃龙首山芨岭地区钠交代型铀矿成矿模式研究 Title:ResearchontheMineralizationModelofSodiumAlterationTypeUraniumDepositinJilingAreaofLongshuMountain,Gansu Abstract: TheJilingareainLongshuMountain,Gansu,hasattractedsignificantattentionduetothepresenceofsodiumalterationtypeuraniumdeposits.Inthispaper,weinvestigateandanalyzethemineralizationmodeloftheseuraniumdeposits.Ourresearchisbasedongeologicalfieldinvestigations,petrographicstudies,geochemicalanalyses,andmineralogicalinvestigations.TheresultsindicatethattheuraniummineralizationintheJilingareaiscloselyrelatedtothesodiumalterationprocess.Themineralizationmodelcanbedescribedasamulti-stageprocessinvolvingtheinfiltrationofuranium-richfluidsinpre-existingrockformationsduringhydrothermalactivities.ThisstudyprovidesvaluableinsightsintotheformationmechanismsofsodiumalterationtypeuraniumdepositsintheJilingareaandcontributestotheunderstandingofuraniummineralizationmodelsworldwide. 1.Introduction: 1.1Backgroundandsignificanceofthestudy 1.2Objectivesofthestudy 1.3Researchmethodsandtechniques 2.GeologicalSetting: 2.1Regionalgeologicaloverview 2.2Lithologyandstratigraphy 2.3Structuralsettingandtectonicbackground 3.MineralizationFeatures: 3.1DistributionandtypesofuraniumdepositsintheJilingarea 3.2Petrographiccharacteristicsofuranium-bearingminerals 3.3Geochemicalfeaturesofthedeposits 4.MineralizationModel: 4.1SodiumalterationprocessintheJilingarea 4.2Stagesofuraniummineralization 4.3Fluidinclusionandstableisotopestudies 5.ControllingFactors: 5.1Geologicalfactorsinfluencinguraniumdeposition 5.2Geochemicalcontrolsonmineralization 5.3Structuralcontrolsonmineralization 6.ComparisonwithGlobalUraniumDeposits: 6.1Comparisonwithothersodiumalterationtypeuraniumdeposits 6.2Implicationsforuraniumexplorationandresourceevaluation 7.Conclusion: 7.1Summaryofthemainfindings 7.2Significanceoftheresearch 7.3Recommendationsforfurtherstudies References: Includealistofcitedliteraturesourcesusedfortheresearch. Keywords: Sodiumalteration,uraniummineralization,mineralizationm