临沂地区断裂构造遥感解译  

Remote sensing interpretation of fault structures in Linyi area

作　　者：蒋科迪 罗生龙 周立 蔡冬荃 肖红吉 JIANG Kedi;LUO Shenglong;ZHOU Li;CAI Dongquan;XIAO Hongji(College of Surveying and Mapping and Oceanographic information, Huaihai Institute of Techology,Lianyungang 222000,China;College of Geoscience and resource,China University of Geoscience,Beijing 100083,China)

机构地区：[1]淮海工学院测绘与海洋信息学院,连云港222000 [2]中国地质大学(北京)地球科学与资源学院,北京100083

出　　处：《物探化探计算技术》2018年第2期269-276,共8页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：江苏省科技支撑计划项目(BE2010125);江苏省交通科学研究计划项目(2011Y01-1.2);淮海工学院优秀毕业论文(设计)培育计划(55090010008)

摘　　要：郯庐断裂带是中国东部规模最大的构造活动带,研究选择沂沭断裂带南段临沂地区为解译区,通过对该区OLI影像预处理、图像拉伸、边缘增强、多重主成分分析以及纹理分析等,解译出临沂地区发育17条主要断裂,其中区域主干断裂5条,主要为NNE向;主要次级断裂12条,包括NNE向次级断裂2条,NW-SE次级断裂4条,近SN向次级断裂3条,近EW向3条。同时,这四个方向上还发育大量小型次级断裂。Tanlu fault,discovered by an aeromagnetic survey in 1957,is the largest active tectonic belt in the east of China.Predecessors conducted further studies and achieved numerous achievements on Tanlu fault by the integrated geophysical exploration,seismic tomography,methods of GPS and so on.Some scholars used remote sensing image to interpret linear structures which almost concentrated in northern Yishu fault in this seismic zone and the quality of images of TM or ETM are poorly understood.The following research chose the southern part of Yishu fault located in the region of Linyi as the interpretation area,using data of radiometric calibration,atmospheric correction,image fusion,image stretch,spatial filtering enhancement'as well as multiple principal component and texture analysis are used to interpret a higher quality remote sensing OLI image provided by Landsat-8.The final result displays that there are 17 important faults in the region of Linyi-5 principal faults along NNE,2 subsidiary faults along NNE,4 subsidiary faults along NW-SE,3 subsidiary fault near the direction of SN and other 3 subsidiary faults near the direction of EW.Besides,many small faults distribute in all these four directions near the 17 significant faults.

关 键 词：沂沭断裂 遥感解译 临沂地区 线性构造 

分 类 号：P627[天文地球—地质矿产勘探]