| 基于ASTER GDEM的河南西部伏牛山区断裂构造特征解译 |
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| 引用本文： | 王艳萍,沈军,宋英杰,刘军,王鹤.基于ASTER GDEM的河南西部伏牛山区断裂构造特征解译[J].西北地震学报,2017,39(4):767-773. |
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| 作者姓名： | 王艳萍 沈军 宋英杰 刘军 王鹤 |
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| 作者单位： | 防灾科技学院, 河北 三河 065201,防灾科技学院, 河北 三河 065201,防灾科技学院, 河北 三河 065201,防灾科技学院, 河北 三河 065201,防灾科技学院, 河北 三河 065201 |
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| 基金项目： | 中央高校基本科研业务费青年教师资助计划项目（ZY20160210）；国家自然科学基金资助课题（41372216） |
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| 摘 要： | 采用ASTER GDEM数据及LANDSAT影像,运用GIS地形分析技术,通过山体阴影提取、坡度、坡向、水系走向、夷平面以及三维可视化等分析方法,对河南西部伏牛山地区的断裂构造特征及力学性质进行提取和分析,验证并总结了DEM与遥感、GIS相结合的手段对断裂构造解译的可靠性。
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| 关 键 词： | ASTER GDEM GIS 地形分析 构造解译 |
| 收稿时间： | 2016/8/18 0:00:00 |
Interpretation of Fault Characteristics in Funiu Mountains,Western Henan Based on ASTER GDEM |
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| WANG Yan-ping,SHEN Jun,SONG Ying-jie,LIU Jun and WANG He.Interpretation of Fault Characteristics in Funiu Mountains,Western Henan Based on ASTER GDEM[J].Northwestern Seismological Journal,2017,39(4):767-773. |
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| Authors: | WANG Yan-ping SHEN Jun SONG Ying-jie LIU Jun and WANG He |
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| Institution: | Institute of Disaster Prevention, Sanhe 065201, Hebei, China,Institute of Disaster Prevention, Sanhe 065201, Hebei, China,Institute of Disaster Prevention, Sanhe 065201, Hebei, China,Institute of Disaster Prevention, Sanhe 065201, Hebei, China and Institute of Disaster Prevention, Sanhe 065201, Hebei, China |
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| Abstract: | GIS terrain analysis technology based on ASTER GDEM data and LANDSTAT image data provides information about hill shade, slope, aspect, river systems, planation surfaces, together with 3D visualization. In this study, such information is combined with results of previous research to extract and analyze the main fault structures in the Funiu Mountain region. Most faults trend NW-SE are clearly shown in shadow maps with 45° and 225° azimuths. Areas that show different gradients are generally located at the junction of mountains and always indicate strong fracture activity. The asymmetric distribution of the river system also shows a response relationship with fault structures. Two planation surfaces with elevations in the range of 1 350~1 400 m and 1 100~1 200 m, respectively, are extracted through terrain analysis and are located in two adjacent stable blocks. The tectonic activity between the two blocks is obviously different, and it is thus easy to identify the F3 fault. In addition, twelve faults are interpreted through a comprehensive comparative analysis. Overall, this method has a higher accuracy in determining and analyzing large faults than small faults; accuracy of the latter cannot be totally verified due to incomplete previous research data. This method can assist in identifying small faults that have not yet been discovered, but it can only be used in surface topography analysis and not in a qualitative analysis of structures as further study is required to meet such requirements. |
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| Keywords: | ASTER GDEM GIS terrain analysis tectonic interpretation |
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