地矿测绘2023，39(1):1～6CN53－1124/TDISSN1007－9394SurveyingandMappingofGeologyandMineralＲesources岩性与构造控矿特征遥感信息提取与分析*———以东天山铜矿区为例蒋涛(甘肃省地图院，甘肃兰州730000)摘要:利用卫星数据快速提取矿化岩性信息，是目前矿产资源勘查的重要技术手段之一。文章以新疆东天山土屋斑岩型铜矿区为研究区，基于该地区出露岩体相关矿物的可见光近红外波段(VNIＲ)至短波红外波段(SWIＲ)的光谱特征分析，对ASTEＲ多光谱包括以热红外(TIＲ)波段在内的全谱域数据进行处理，分别采用主成分分析(PCA)、波段比值(BＲ)、矿物指数算法识别和提取了研究区地表侵入体的岩性信息。同时，对ASTEＲ15mDEM数据进行E－W方向滤波处理，提取和解译出土屋矿区控矿断裂构造信息，结合岩性信息分析控矿条件。最后，对遥感信息提取结果分别进行了矿物镜下与野外验证。关键词:多源遥感数据;土屋铜矿区;岩性信息提取;断裂构造解译中图分类号:P237文献标识码:A文章编号:1007－9394(2023)01－0001－06ＲemoteSensingInformationExtractionandAnalysisofLithologyandStructuralOre-controllingCharacteristics:ACaseStudyofEasternTianshanCopperMiningAreaJIANGTao(GansuProvincialCartographicInstitute，LanzhouGansu730000，China)Abstract:Usingsatellitedatatoquicklyextractmineralizedlithologyinformationisoneoftheimportanttech-nicalmeansformineralresourcesexploration．Inthispaper，theTuwuporphyrycoppermineintheeasternTianshanMountainsofXinjiangistakenastheresearcharea．Basedonthespectralcharacteristicsofthevisiblenear-infraredband(VNIＲ)totheshort-waveinfraredband(SWIＲ)oftheexposedrock-relatedmineralsinthisarea，theASTEＲmulti-spectraldataincludingthethermalinfrared(TIＲ)bandareprocessed．PrincipalComponentAnalysis(PCA)，BandＲatio(BＲ)，andMineralIndexAlgorithmsareusedtoidentifyandextractthelithologyinformationofsurfaceintrusionsinthestudyarea．Atthesametime，thedataofASTEＲ15mDEMareprocessedbyE-Wdirectionfilte-ring，andtheore-controllingfaultstructureinformationofTuwuminingareaisextractedandinterpreted．Finally，theresultsofremotesensinginformationextractionareverifiedbymineralmicroscopeandfield．Keywords:multi-sourceremotesensingdata;Tuwucoppermining...
