2023·11技术应用与研究140ModernChemicalResearch当代化工研究湖南铲子坪金矿原生晕特征及找矿应用——以Ⅰ矿带为例＊董裕军彭思才吕书君（湖南省自然资源调查所湖南418000）摘要：铲子坪金矿是雪峰弧形构造带中段典型的破碎蚀变岩型金矿。本文以铲子坪金矿床地质特征为基础，通过相关性分析、聚类分析、因子分析对矿床元素亲疏关系进行分类，该矿床矿体及近矿晕元素组合为Au、Cu、Ag、Pb、Zn，前缘晕为As、Sb，尾晕为Mo、Co、Mn。采用格里戈良分带指数法确定了矿床原生晕的轴向分带序列为Pb-Sb-B-Au-Cu-Ag-Zn-Bi-Hg-Mo-Mn-As-Co，具有明显的“反分带”特征，结合原生晕分布等值线图，在矿体尾部出现前缘晕和尾晕叠加的现象，预示深部存在隐伏矿体。经ZK7906深部验证，揭露隐伏金矿体4个，对本区金矿开展原生晕地球化学研究及深部成矿预测具有一定的参考价值。关键词：铲子坪金矿；原生晕；分带指数；分布特征中图分类号：P618.51文献标识码：ADOI：10.20087/j.cnki.1672-8114.2023.11.043CharacteristicsofPrimaryHaloandItsProspectingApplicationintheChanzipingGoldDeposit,Hu'nanProvince——TakingtheIOreBeltasanExampleDongYujun,PengSicai,LvShujun(Hu'nanProvincialNaturalResourcesSurveyInstitute,Hu'nan,418000)Abstract：TheChanzipinggolddepositisatypicalfracturedalteredrocktypegolddepositinthemiddlesectionoftheXuefengarc-shapedstructuralbelt.ThisarticleisbasedonthegeologicalcharacteristicsoftheChanzipinggolddeposit,andclassifiestheelementaffinityrelationshipofthedepositthroughcorrelationanalysis,clusteranalysis,andfactoranalysis.TheorebodyandnearorehaloelementcombinationsofthedepositareAu,Cu,Ag,Pb,Zn,thefronthaloareAs,Sb,andthetailhaloareMo,Co,Mn.Theaxialzoningsequenceoftheprimaryhaloofthedepositisdeter-minedasPb-Sb-B-Au-Cu-Ag-Zn-Bi-Hg-Mo-Mn-As-CobyusingtheGrigoryanzoningindexmethod,whichhasobvious“reversezoning”characteris-tics.Incombinationwiththecontourmapofthedistributionoftheprimaryhalo,thephenomenonoffronthaloandtailhalosuperimpositionappearsatthetailoftheorebody,indicatingthatthereisaconcealedorebodyatdepth.ThroughthedeepverificationofZK7906,4concealedgoldorebodiesareexposed,whichhascertainreferencevalueforthegeochemicalstudyofprimar...
