| 遥感解译在内蒙古额济纳旗地区1：5万地质填图中的应用 |
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| 引用本文： | 于洪苹,杨国良,滕正双.遥感解译在内蒙古额济纳旗地区1：5万地质填图中的应用[J].地质找矿论丛,2021,36(4):538-545. |
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| 作者姓名： | 于洪苹 杨国良 滕正双 |
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| 作者单位： | 首钢地质勘查院地质研究所, 北京 100144 |
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| 摘 要： | 遥感技术是地质填图工作的重要辅助技术方法。针对内蒙古额济纳旗地区的荒漠戈壁地貌景观特点，在地质填图中选取国产资源三号卫星遥感数据和ETM+遥感数据作为遥感解译的数据源，并分别对获取的遥感数据进行数据融合、几何校正（或精校正）、图像校正和镶嵌等数据处理。鉴于测区植被不发育，地表多以基岩和戈壁滩为主，资源三号遥感图像颜色单调。特将校正的资源三号图像与ETM+图像进行图像融合，融合后的图像既具有ETM+图像的丰富色彩信息，又保证了资源三号卫星图像的高空间分辨率，便于实施人机交互地质矿产信息提取。根据遥感影像特征，建立了地层、侵入体和构造的解译标志，提取了与岩性和构造相关的各类信息，结合地质资料进行综合判别解译，提高了地质填图工作的准确性，为荒漠戈壁地貌区的地质填图提供了技术支持。
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| 关 键 词： | 遥感地质解译 1:5万地质填图 岩性与构造解译 区域地质调查 额济纳旗 内蒙古自治区 |
| 收稿时间： | 2021/5/10 0:00:00 |
Application of remote sensing interpretation to geological mapping at scale 1: 50000 in Ejinaqi area of Inner Mongolia |
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| YU Hongping,YANG Guoliang,TENG Zhengshuang.Application of remote sensing interpretation to geological mapping at scale 1: 50000 in Ejinaqi area of Inner Mongolia[J].Contributions to Geology and Mineral Resources Research,2021,36(4):538-545. |
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| Authors: | YU Hongping YANG Guoliang TENG Zhengshuang |
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| Institution: | Geological Research Institute of Shougang Geological Exploration Institute, Beijing 100144, China |
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| Abstract: | Remote sensing technology has been an important tool for geological mapping. Facing landscape of Gebi desert of Ejinaqi area data of No.3 Resources Satellite of China and ETM+ are chosen to be the raw data for geological mapping in the area. Images are geometrically calibrated and mosaiced. The Ejinaqi area is not developed with vegetation, bed rock and Gebi exposed to the ground and image of No.3 satellite of China is monotonous grey. The calibrated images of the two satellites are fused. The fused image keep both of high spatial resolution of the No.3 satellite''s image and multi-color information of the ETM+ Image so as to facilitate information extraction of mineral resources by human-computer interaction. Based on features of the image and comprehensive analysis and interpretation of the geological data of the area are established the interpretation marks of stratum, intrusions and structures. Information related to lithologies and structures is extracted which improve accuracy the geological mapping. The method will provide technical support for geological mapping in other desert areas. |
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| Keywords: | remote sensing interpretation geological mapping Lithologies and structural interpretation regional geological survey Ejinaqi Inner Mongolia |
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