库拜盆地岩性构造遥感解译与构造演化分析

发布时间：2018-01-26 14:43

本文关键词： 库拜盆地岩性-构造增强构造演化　出处：《中国地质大学(北京)》2015年硕士论文　论文类型：学位论文

【摘要】：论文以“西部重点成矿区带高分遥感地质矿产调查技术研发与应用示范”项目为依托,在对沉积岩光谱特征充分认识的基础上,对库拜盆地多光谱遥感数据(ETM+、ASTER)进行了岩性-构造信息增强并建立了岩性-构造遥感解译标志,在此基础上,对库拜盆地岩性-构造信息进行提取。基于库拜盆地岩性-构造信息提取结果并结合地质资料,分析探讨了库拜盆地构造演化特征。论文取得的主要成果如下:(1)在对沉积岩光谱特征充分认识的基础上,通过多种影像增强方法(基于色调的:波段组合法、对比度增强法、比值增强法、主成分变换法、HLS变换法;基于纹理的:高通滤波、定向滤波)对库拜盆地多光谱遥感数据(ETM+、ASTER)进行了岩性-构造信息增强并取得了较好的增强效果。(2)在岩性-构造信息增强的基础上,建立了研究区岩性-构造遥感解译标志,并结合高分辨率遥感影像(Google Earth、World View-2)的空间信息,对研究区进行了岩性-构造遥感解译,查明了研究区内岩性-构造分布及其特点。(3)在对研究区岩性-构造解译基础上,结合地质资料,分析探讨了库拜盆地构造演化特征,并根据遥感岩性-构造解译结果,从地层接触关系、褶皱变形等角度分析,得出库拜盆地新近纪以来经历了四期构造变形作用,因而将库拜盆地新近纪以来的构造演化划分为四个阶段:前康村组演化阶段、康村组—库车组演化阶段、库车组-西域砾岩组演化阶段、西域组-现今演化阶段。
[Abstract]:Based on the project of "R & D and Application demonstration of High-score remote Sensing Geological and Mineral Survey Technology in West China's key metallogenic zones", and on the basis of fully understanding the spectral characteristics of sedimentary rocks. On the basis of the enhancement of lithology and structure information and the remote sensing interpretation of lithology and tectonics, the multispectral remote sensing data of Kuba Basin are presented. The lithology-structure information of Kuba basin is extracted. Based on the information of lithology-structure of Kuba basin, the information is extracted and combined with geological data. The main achievements of this paper are as follows: 1) on the basis of a full understanding of the spectral characteristics of sedimentary rocks. Several image enhancement methods (based on hue: band combination method, contrast enhancement method, ratio enhancement method, principal component transform method and HLS transform method) are used. Texture-based: high pass filtering, directional filtering) ETM for multispectral remote sensing data in Kuba Basin. ASTER2) based on the enhancement of lithology-structure information, a remote sensing interpretation mark of lithology-structure in the study area was established. Combined with the spatial information of Google Earth World View-2, the lithology and tectonics remote sensing interpretation of the study area was carried out. Based on the interpretation of lithology and structure in the study area and the geological data, the tectonic evolution characteristics of Kuba basin are analyzed and discussed. According to the interpretation results of remote sensing lithology and tectonics, from the angle of stratigraphic contact relationship and fold deformation, it is concluded that the Kuba basin has undergone four tectonic deformations since the Neogene. Therefore, the tectonic evolution of Kuba Basin since Neogene can be divided into four stages: Qiankangcun formation, Kangcun and Kuqa formation, Kuqa formation and Xiyu conglomerate formation. Western region formation-present evolutionary stage.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P627

【参考文献】