引用格式：胡利娟，吴祥珂，乐兴文，等，2023.广西西大明山矿集区德立铅锌矿床成矿时代及其找矿勘查启示[J].地质力学学报，29（1）：76−86.DOI：10.12090/j.issn.1006-6616.2022034Citation:HULJ，WUXK，LEXW，etal.，2023.DatingtheDeliPb–Zndeposit,Xidamingshanminingdistrict,SouthChina:Implicationsforregionalexploration[J].JournalofGeomechanics，29（1）：76−86.DOI：10.12090/j.issn.1006-6616.2022034广西西大明山矿集区德立铅锌矿床成矿时代及其找矿勘查启示胡利娟1，吴祥珂2,3，乐兴文4，余树青3，张林炎5，朱亿广3，岑文攀2HULijuan1，WUXiangke2,3，LEXingwen4，YUShuqing3，ZHANGLinyan5，ZHUYiguang3，CENWenpan21.北京圣海林生态环境科技股份有限公司，北京100192；2.广西壮族自治区地质调查院，广西南宁530023；3.广西壮族自治区矿产资源储量评审中心，广西南宁530029；4.广西壮族自治区第四地质队，广西南宁530031；5.中国地质科学院地质力学研究所，北京1000811.BeijingSaintecoTechnologyCo.,LTD.,Beijing100192,China;2.GuangxiInstituteofGeologicalSurvey,Nanning530023,Guangxi,China;3.MineralResourceReservoirEvaluationCenterofGuangxi,Nanning530029,Guangxi,China;4.No.4GeologicalTeamofGuangxi,Nanning530031,Guangxi,China;5.InstituteofGeomechanics,ChineseAcademyofGeologicalSciences,Beijing100081,ChinaDatingtheDeliPb–Zndeposit,Xidamingshanminingdistrict,SouthChina:ImplicationsforregionalexplorationAbstract:TheYoujiangbasinisadiamond-shapedIndosinianforelandbasinformedduringthesubductionandmergingoftheSouthChinaplateintotheIndo-Chineseplate.AlargenumberofIndo-Chinesetectonictraceshavebeenpreservedinthebasin.However,littlehasbeenreportedaboutthesyn-tectonicmagmaanditsrelatedmineralizationinthebasin.SphaleritesfromthenewlydiscoveredDeliPb–ZndepositintheXidamingshanminingdistrictatthesoutheasternmarginoftheYoujiangbasinweresampledfortheRb–Srisochrondating.Weobtainedtheisochronageof207.1±0.6Ma(MSWD=1.5)withinitialSrisotopiccompositionof0.728379to0.739226.TheSrisotopiccompositionsaredistinctfromthoseoftheLateCretaceousfelsicintrusionsandtheLateJurassichigh-MgandesiteinoraroundtheXidamingshandistrictbutsimilartothoseofthe...
