| 利用三维可视化卫星遥感影像分析龙蟠-乔后断裂带的几何结构 |
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| 引用本文： | 胡朝忠,田勤俭,杨攀新,郝平,王林,汤勇,熊仁伟,余建强,梁朋,苏鹏.利用三维可视化卫星遥感影像分析龙蟠-乔后断裂带的几何结构[J].震灾防御技术,2015,10(4):819-830. |
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| 作者姓名： | 胡朝忠 田勤俭 杨攀新 郝平 王林 汤勇 熊仁伟 余建强 梁朋 苏鹏 |
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| 作者单位： | 中国地震局地震预测研究所,北京 100036;中国地震局地震预测研究所,北京 100036;中国地震局地震预测研究所,北京 100036;中国地震局地震预测研究所,北京 100036;中国地震局地震预测研究所,北京 100036;湖北省地震局,武汉 430071;中国地震局地震预测研究所,北京 100036;云南省地震局,昆明 650224;中国地震局地震预测研究所,北京 100036;中国地震局地震预测研究所,北京 100036 |
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| 基金项目： | 中国地震活断层探查——南北带中南段（60112304）、国家自然科学基金（41302171）和中国地震局基本科研业务经费（2014IES0401）共同资助 |
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| 摘 要： | 本文对龙蟠-乔后断裂,采用1/5万数字高程模型和2.5m分辨率的ALOS遥感影像,在ENVI 4.5平台上将二者融合,获取三维可视化卫星遥感影像。从不同的角度、尺度,对三维影像进行构造地貌解译,获得断裂的展布和活动性质。之后选择部分场点考察验证,发现地质地貌体的断错特征与影像上分析的一致,说明三维影像的构造地貌解译在获得断裂几何展布研究中完全适用。本文应用该方法对龙蟠-乔后断裂的研究表明:龙蟠-乔后断裂由北向南依次经过老母增、龙蟠东、鸿文、雄古、北高寨、龙门邑、桃园、东富乐、岩峰场等;依据断裂几何不连续、走向变化、活动性质变化等,由北向南分为龙蟠段、鸿文段、九河段、剑川盆地段、东富乐段。龙蟠段与鸿文段为左旋左阶斜列;鸿文段与九河段为左旋左阶斜列,九河段走向相较鸿文段和南侧的剑川段逆时针旋转约5°,九河盆地的发育与走向变化相关;九河段与剑川盆地段为左旋右阶斜列,剑川盆地的发育不仅与龙蟠-乔后断裂相关,更可能与丽江-小金河断裂的活动也相关;剑川盆地段与东富乐段为左旋右阶斜列,斜列区为拉分性质的沙溪盆地。综上可知,龙蟠-乔后槽谷的形成与断裂最新几何结构和运动性质仅在部分段落上一致,从这个角度看槽谷的形成不排除古河道等其它因素的影响。
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| 关 键 词： | 三维影像 龙蟠-乔后断裂 构造地貌 几何结构 分段 |
| 收稿时间： | 2014/9/11 0:00:00 |
Analysis of Longpan-Qiaohou Fault Geometric Structure by Using 3-D Visualization of Satellite Remote Sensing Image |
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| Hu Chaozhong,Tian Qinjian,Yang Panxin,Hao Pin,Wang Lin,Tang Yong,Xiong Renwei,Yu Jianqiang,Liang Peng and Su Peng.Analysis of Longpan-Qiaohou Fault Geometric Structure by Using 3-D Visualization of Satellite Remote Sensing Image[J].Technology for Earthquake Disaster Prevention,2015,10(4):819-830. |
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| Authors: | Hu Chaozhong Tian Qinjian Yang Panxin Hao Pin Wang Lin Tang Yong Xiong Renwei Yu Jianqiang Liang Peng and Su Peng |
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| Institution: | Institute of Earthquake Science, CEA, Beijing100036, China;Institute of Earthquake Science, CEA, Beijing100036, China;Institute of Earthquake Science, CEA, Beijing100036, China;Institute of Earthquake Science, CEA, Beijing100036, China;Institute of Earthquake Science, CEA, Beijing100036, China;Earthquake Administration of Hubei Province, Wuhan 430071, China;Institute of Earthquake Science, CEA, Beijing100036, China;Earthquake Administration of Yunnan Province, Kunming 650224, China;Institute of Earthquake Science, CEA, Beijing100036, China;Institute of Earthquake Science, CEA, Beijing100036, China |
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| Abstract: | We use the ALOS remote sensing image with 2.5-m resolution and 1/5 ten thousands digital elevation model on the ENVI 4.5 platform, the fusion of the two acquisition the 3D visualization of satellite remote sensing image along the Longpan-Qiaohou fault. By analyzing the 3D images from different angles, scaling, the tectonic features and special distribution of faults are interpreted. The field verification in some sites was carried out, and we found that the interpretation in the lab is in good consistent with geological characteristics in the field, indicating that the method is feasible. In this paper, we applied the method to analyze the fault geometric distribution zone of Longpan-Qiaohou Fault. Detailed results in fault geometry, segmentation, activity, and combined feature are present . |
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| Keywords: | Three-dimensional image Longpan-Qiaohou fault Tecto-geomorphologic Geometry structure Segment |
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