赣南牛岭钨矿床成岩成矿年代学及成矿构造背景程顺波，刘飞，秦拯纬，付建明，卢友月，张遵遵CHENGShun-Bo,LIUFei,QINZheng-Wei,FUJian-Ming,LUYou-Yue，ZHANGZun-Zun1.中国地质调查局花岗岩成岩成矿地质研究中心，湖北武汉430205；2.中国地质调查局武汉地质调查中心（中南地质科技创新中心），湖北武汉4302051.ResearchCenterforPetrogenesisandMineralizationofGranitoidRocks,ChinaGeologicalSurvey,Wuhan430205,Hubei,China;2.WuhanCenter,ChinaGeologicalSurvey（GeosciencesInnovationCenterofCentralSouthChina）,Wuhan430205,Hubei,China摘要：赣南牛岭钨矿床是近年新发现的典型石英脉型钨矿床。在矿床野外地质调查的基础上，本文选择矿区中细粒斑状黑云母花岗岩、含钨石英脉开展高精度测年研究，获得牛岭黑云母花岗岩LA-ICP-MS锆石U-Pb年龄为156±1Ma（MSWD=0.94），辉钼矿Re-Os等时线年龄为156.8±6.3Ma(MSWD=0.01)，白云母40Ar-39Ar阶段升温坪年龄为157.2±1.0Ma(MSWD=0.31)。上述测试结果一致表明，牛岭钨矿床成岩成矿作用均发生于晚侏罗世。辉钼矿Re/Os同位素及成矿母岩性质反映成矿金属来自于地壳。综合华南侏罗纪-白垩纪地质事件序列和动力学研究成果，认为古太平洋板块西向俯冲机制下的安第斯型陆缘弧后环境可能是矿床的理想成矿构造背景。关键词：牛岭钨矿床；年代学；构造背景；赣南中图分类号：P611文献标识码：A文章编号：2097-0013（2023）02-0349-14ChengSB,LiuF,QinZW,FuJM,LuYYandZhangZZ.2023.HighResolutionGeochronolo⁃gyandTectonicsettingoftheNiulingtungstendepositinsouthernJiangxi.SouthChinaGeol⁃ogy,39(2):349-362Abstract:NiulingW-SndepositinsouthernJiangxiProvinceisatypicalquartzveintypeW-Sndepositnew-lydiscoveredinrecentyears.Basedonthegeologicalinvestigation,samplesfromfine-grainedporphyriticbi-otitegraniteandW-bearingquartzveinsinthedeposithavebeenselectedforhigh-precisiondatingstudiestodeterminetheagesofdiagenesisandmineralization.TheLA-ICP-MSzirconU-PbageofthebiotitegraniteandtheRe-Osageofthemolybdeniteyielded156±1Ma(MSWD=0.94)and156.8±6.3Ma(MSWD=0.01)respectively,andthe40Ar-39Arageofthemuscovitewas157.2±1.0Ma(MSWD=0.31).TheresultsofthetestsaboveconsistentlyshowedthatthediagenesisandmineralizationoftheNiulingW-SndepositbothoccurredintheLa...
