基于多源遥感数据的西藏羌多地区地质构造解译  

Geological structural interpretation of Qiangduo area in Tibet based on multi-source remote sensing data

作　　者：刘新星[1,2] 陈建平[1] 曾敏[3] 代晶晶[2] 裴英茹[1,2] 任梦依 王娜[4] 

机构地区：[1]中国地质大学(北京)地球科学与资源学院,北京100083 [2]中国地质科学院矿产资源研究所,北京100037 [3]成都理工大学地球科学学院,成都610059 [4]中国地质环境监测院,北京100081

出　　处：《国土资源遥感》2015年第3期154-160,共7页Remote Sensing for Land & Resources

基　　金：中国地质调查局地质调查计划项目"重要成矿带矿产资源遥感地质调查"之工作项目"班公湖-怒江成矿带矿产资源遥感地质调查"(编号:1212011121297)资助

摘　　要：多光谱遥感数据的空间分辨率通常是为解决资源和环境等特定问题而设置的,但是地质构造从区域到手标本可划分为不同尺度,因而单一遥感数据并不能满足多尺度的构造解译。为此,以西藏羌多地区为研究区,利用ETM+,ASTER,WorldView2及DEM等多源遥感数据的综合优势,从30 m空间分辨率的ETM+和15 m空间分辨率的ASTER到0.5 m空间分辨率的WorldView2这2个层次上解译研究区的构造,取得了显著成效。首先,基于传统的构造信息解译标志,用ETM+数据进行构造架构解译,同时运用ASTER数据的波段运算结果间接反映构造信息;然后,开展WorldView2高空间分辨率数据的综合构造解译分析;最后,在野外验证的基础上,对解译的构造信息进行室内修正。研究区的地质构造解译结果表明,综合多源遥感数据可以大大提高地质构造解译的准确率,并在较短的时间内取得较好的应用效果。Usually remote sensing data are set corresponding parameters to solve specific problems such as resource and environment; nevertheless, the geological structures from the regional scale to the hand specimen are divided into different scales, and hence a single kind of remote sensing data cannot meet the multi - scale geological structure interpretation. To solve this problem, the authors took Qiangduo area in Tibet as the study area, utilized the advantages of ETM ~ , ASTER, WorldView2 and DEM data of the study area to interpret the geological structures at two different levels from ETM ~ data with 30 m resolution and ASTER data with 15 m resolution to WorldView2 data with 0.5 m resolution, and obtained a good result. Firstly, the interpretation of structural framework from ETM ~ data was carried out by interpretation keys. At the same time, the ASTER band calculation was used to indirectly reflect structural information which could verify the results of the ETM ~. Furthermore, the high spatial resolution WorldView2 data were integrated to analyze the structure. Finally, on the basis of the field validation, the interpretation results were revised. The geological structure interpretation results of Qiangduo area show that the integrated application of multi - source remote sensing data can improve the accuracy of structure interpretation and achieve a good practical application effect in a short period of time.

关 键 词：羌多地区 多源遥感数据 地质构造解译 

分 类 号：TP753[自动化与计算机技术—检测技术与自动化装置]