遥感在大兴安岭牛汾台林场地区1∶5万区调中的应用研究  

APPLICATION OF REMOTE SENSING IN 1∶50000 REGIONAL GEOLOGICAL SURVEY OF NIUFENTAI FOREST FARM IN DAXINGANLING MOUNTAINS

作　　者：林敏[1,2] LIN Min(China University of Geosciences,Wuhan 430074,China;Fujian Institute of Geological Survey,Fuzhou 350013,China)

机构地区：[1]中国地质大学,湖北武汉430074 [2]福建省地质调查研究院,福建福州350013

出　　处：《地质与资源》2022年第5期642-652,674,共12页Geology and Resources

基　　金：中国地质调查局地质调查项目“内蒙古1∶5万牛汾台林场幅、青石砬子幅、迈斯很达坂幅、海勒斯台护林站幅区域地质调查”(DD20190039).

摘　　要：内蒙古1∶5万牛汾台林场等4幅区调项目分别采用资源三号卫星影像和LandSat-8多光谱数据进行遥感解译.经对比分析,资源三号卫星影像适合应用于地形地貌方面的解译,而LandSat-8多光谱数据则在线型构造、环状构造解译中起到了更大作用.解译出29条NE、NW向为主的线型构造,29个与火山喷发活动相关的小型环形构造.经野外实地验证,其中11条线型构造发现断裂,11个环形影像填绘出火山机构.解译了第四系、新近系五叉沟组、古生界、上侏罗统—下白垩统和岩体的界线.经验证,五叉沟组以及第四系解译界线与野外调查界线大致吻合;解译的古生界地层界线与验证的早古生代海勒斯台构造混杂岩界线大致相同;岩体经验证为早白垩世正长花岗岩.The ZY-3 satellite images and LandSat-8 multispectral data are applied respectively in the remote sensing interpretation of 4 sheets of 1∶50000 regional survey projects including Niufentai Forest Farm in Inner Mongolia.Through comparative analysis of the above two sources of data,it is found that the former is suitable for interpretation of terrain and landform,while the latter plays a greater role in interpretation of linear and ring structures,with which 29 NE-and NW-oriented linear structures and 29 minor ring structures related to volcanic eruption are interpreted,as well as the boundaries of Quaternary,Neogene Wuchagou Formation,Paleozoic,Upper Jurassic-Lower Cretaceous strata and rock mass.Faults are found in 11 linear structures,and volcanic edifices are delineated in 11 ring images through field verification.It is proved that the interpreted boundaries of Wuchagou Formation and Quaternary are roughly consistent with the boundaries by field survey.The interpreted Paleozoic boundaries almost coincide with the verified boundary of Early Paleozoic Hellestein tectonic melange.The rock mass is confirmed to be Early Cretaceous syenogranite.

关 键 词：遥感 线性构造 环状构造 区域地质调查 大兴安岭 

分 类 号：P627[天文地球—地质矿产勘探]