| 活动断层填图中的航片解译问题 |
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| 引用本文： | 何宏林.活动断层填图中的航片解译问题[J].地震地质,2011(4):938-950. |
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| 作者姓名： | 何宏林 |
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| 作者单位： | 中国地震局地质研究所国家地震活动断层研究中心 |
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| 基金项目： | 财政部重大专项“我国地震重点监视防御区活动断层地震危险性评价”(201108001)资助 |
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| 摘 要： | 遥感技术和高精度遥感信息的进步,极大地推动了活动构造和地震地质研究的发展,各种遥感技术在最近几年活动断层填图工作中得到了广泛的应用.如何充分利用各种遥感技术,充分挖掘各种遥感信息以提高填图工作的效率和精度,引起了广大相关科技人员的重视.航空照片以其高精度和高直观性在所有遥感信息源中占据着重要的地位.20世纪中晚期,中国...
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| 关 键 词： | 活动断层填图 构造地貌 航片解译 |
SOME PROBLEMS OF AERIAL PHOTO INTERPRETATION IN ACTIVE FAULT MAPPING |
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| HE Hong-lin.SOME PROBLEMS OF AERIAL PHOTO INTERPRETATION IN ACTIVE FAULT MAPPING[J].Seismology and Geology,2011(4):938-950. |
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| Authors: | HE Hong-lin |
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| Institution: | HE Hong-lin(National Center for Active Fault Studies,Institute of Geology,China Earthquake Administration,Beijing100029,China) |
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| Abstract: | High speed development of remote sensing technique and high-resolution remote sensing data promotes greatly the study of active tectonics and seismo-geology.Recently,much more remote sensing techniques have widely been applied to active fault mapping.How to utilize sufficiently the various remote sensing techniques and various remote sensing data to increase the efficiency and quality of mapping has attracted eyes of many scientists.In all of the remote sensing information sources,aerial photograph has played a more important role in the interpretation of active tectonics,because of its high resolution and high intuitiveness.In the middle and late periods of last century,a lot of aerial photographs had been bought by institutes and local branches of China Earthquake Administration,especially the western provinces.These aerial photograph data are worth to pay more attention and to re-utilize when we do the active fault mapping,because of the following reasons:1)almost no extra expense needed to be paid;2)having excellent stereo vision;3)having better original landform because they were shot before the high-speed economic development of the country.In this paper,some problems of air-interpretation in active fault mapping have been discussed:1)interpreting the unusual landform,which is controlled by faulting;while the usual landform is that controlled by erosion;2)interpreting landform classification map,because linear image is not equal to linear structure,and linear structure is not equal to active fault,either;3)distinguishing strictly the credible,buried and conjectured fault traces;4)restoration of offset is not only to estimate displacement along a fault but also to identify effectively whether the abnormal bending of rivers is controlled by faulting.Finally,we hope that these discussions should help the future research on the active tectonics and the active fault mapping. |
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| Keywords: | active fault mapping tectonic geomorphology interpretation of aerial photograph |
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