北巴颜喀拉山1∶5万区域地质调查中的遥感解译应用

Application of Remote Sensing Interpretation on 1∶ 50,000 Regional Geological Survey of North Bayan Hara Mountain

遥感技术是地质填图的一种重要手段,充分运用遥感技术能够有效提高填图效率和质量。本研究以北巴颜喀拉山地区SPOT5、ETM系列数据为基础影像,从岩性、构造解译入手进行最大程度的信息挖掘。从4个方面详细阐述岩性判识依据,建立北巴颜喀拉山可视化解译标志系统,并对地层岩性进行基于影像的重新厘定,细分了各地层岩段或岩性组合。通过构造详细解译,识别了多种、不同级别的构造形迹,建立研究区新的构造格架,并对构造块体进行详细划分。本研究翔实、细致的工作,为北巴地区地层岩性对比、构造重新认识提供新视角,为该区区域地质调查提供新资料。

Remote sensing technology is an important means of geological mapping. The efficiency and quality of mapping can be effectively improved through making full use of remote sensing technology. By using remote sensing method,and starting with the lithological and structure interpretation based on the SPOT5 and ETM data of Bayan Hara Mountain,the research obtained information to the greatest degree. The basis of lithology interpretation was carried on the detailed elaboration from four aspects in this research. The visual interpretation key system was established for the research area. And then the formation lithology was delimited through visual interpretation key. The rock section and lithological association were subdivided on each stratum. Various different levels of structural features were identified. New tectonic framework was established,and the tectonic blocks were divided for the research area. A perspective recognition of lithostratigraphic correlation and structure was obtained by painstaking research work. This would provide new materials for regional geological in Bayan Hara Mountain.