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1、江西相山鈾礦田山南礦區(qū)控礦構(gòu)造解析和找礦預(yù)測 摘要：江西相山鈾礦為與火山巖有關(guān)的中低溫?zé)嵋盒偷V床，斷裂構(gòu)造控礦特征明顯。以相山鈾礦田山南礦區(qū)為研究重點，開展控礦構(gòu)造解析和構(gòu)造控礦規(guī)律研究，旨在為隱伏礦床找礦預(yù)測提供科學(xué)指導(dǎo)。通過詳細(xì)的野外觀測和變形分析，揭示出山南礦區(qū)主要的控礦構(gòu)造，即北北東向、東西—北西西向斷裂破碎帶都經(jīng)歷了早期壓性和晚期張性張扭性的破碎變形，構(gòu)成了本區(qū)主要的容礦空間。在此基礎(chǔ)上，分析了斷裂控礦規(guī)律，推測破碎帶的性質(zhì)控制了鈾礦體產(chǎn)出特征，構(gòu)造通過控制巖石的變形行為而控制了鈾礦體的產(chǎn)出
2、，進而解釋了所謂的”巖性控礦”觀點。根據(jù)構(gòu)造控礦規(guī)律及其控礦構(gòu)造組合特征與區(qū)域綜合找礦模型，認(rèn)為橫澗礦區(qū)的西南段、崗上英礦區(qū)與橫澗礦區(qū)及石馬山礦區(qū)的連接處等應(yīng)為下一步找礦的首選有利區(qū)段，同時要注意尋找北北東向和東西—北西西向斷裂復(fù)合部位的富、大礦體，并關(guān)注北北東向斷裂成礦期后的活動對礦體的左旋錯移情況。關(guān)鍵詞：構(gòu)造解析；找礦預(yù)測；鈾礦；山南礦區(qū)；相山；江西中圖分類號：P619.14文獻標(biāo)志碼：A[KH*1D]OrecontrollingTectonicAnalysisand34Oreprospecting
3、inShannanMiningAreaofXiangshanUraniumOrefield，JiangxiCHENZhengle1，WANGPingan1，WANGYong1，SHAOFei2，TANGXiangsheng2，XUJinshan2，YUJianfa3，HANFengbin1，SUNYue1（1.InstituteofGeomechanics，ChineseAcademyofGeologicalSciences，Beijing100081，China；2.No.270ResearchInst
4、itute，CNNC，Nanchang330200，Jiangxi，China；3.FuzhouJinanUraniumCo.，Ltd.，CNNC，Lean344301，Jiangxi，China）Abstract：TheuraniumoreinXiangshanofJiangxiisoneofvolcanicrelatedmesoepithermaldeposits，andtheorecontrollingcharacteristicoffaultstructureissignificant.Oreco
5、ntrollingtectonicanalysisandtectonicorecontrollingregularitywerestudiedinShannanminingareaofXiangshanuraniumorefieldinordertoprovidescientificguidancefororeprospectinginblindoredeposit.Fielddetailedobservationandmeasurementshowedthatthemainorecontrollings
6、tructuresin34ShannanminingareaincludingNNEandEWNWWtrendingfaultfracturezoneshadexperiencedcompressionalinearlystageandlaterextensionaltotranextensionalbrokendeformation，andthereforewerefavorableforuraniumdeposited.Theruleoforecontrollingfaultwasdiscussed，
7、anditwassuggestedthattheoutputcharacteristicofuraniumorebodywasmainlycontrolledbythepropertyoffracturezone.Additionally，theoutputcharacteristicsofuraniumorebodiesinvariousrockscouldbeinterpretedasthedifferentdeformationbehaviorsundertectonicstress，whichco
8、uldbehelpfulforunderstandingsocalledlithologicorecontrolling.Accordingtotheregionaloreprospectingmodelwithcharacteristicandregularpatternoforecontrollingstructure，thepreferredfavorablesectionsincludedthesouthwestsec
