| Multi-scale wavelet separation of aeromagnetic anomaly and study of faults in Beijing area |
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| 作者姓名： | 张先 赵丽 刘天佑 杨宇山 |
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| 作者单位： | [1]Geophysical Exploration Center, China Earthquake Administration, Zhengzhou 450002, China [2]Institute of Geophysics and Geomagnetics, China University of Geosciences, Wuhan 430074, China |
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| 基金项目： | Foundation item： National Development and Reform Commission Project ＂Experimental Detection of Urban Active Faults＂ （2004-1138）. Contribution No,0512, Geophysical Exploration Center, China Earthquake Administration. |
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| 摘 要： | Introduction As the capital of China, Beijing is a major political, economic and cultural center. In 2008, it will host the Olympic Games. Therefore, Beijing is of great importance in our national undertak-ing in guarding against earthquakes and reducing their damages. The Chinese Capital Circle re-gion has always been attached great importance in monitoring earthquakes by the China Earth-quake Administration, and as the kernel of the Capital Circle region, Beijing is the key area for ea…
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| 关 键 词： | 北京 航空磁测 震波 地震 |
| 文章编号： | 1000-9116（2006）05-0542-10 |
| 收稿时间： | 2005-11-23 |
| 修稿时间： | 2006-06-14 |
Multi-scale wavelet separation of aeromagnetic anomaly and study of faults in Beijing area |
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| ZHANG Xian,ZHAO Li,LIU Tian-you,YANG Yu-shan.Multi-scale wavelet separation of aeromagnetic anomaly and study of faults in Beijing area[J].Acta Seismologica Sinica(English Edition),2006,19(5):542-551. |
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| Authors: | ZHANG Xian ZHAO Li LIU Tian-you YANG Yu-shan |
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| Institution: | 1. Geophysical Exploration Center,China Earthquake Administration,Zhengzhou,450002,China
2. Institute of Geophysics and Geomagnetics,China University of Geosciences,Wuhan,430074,China |
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| Abstract: | In this paper, through a multi-scale separation of the aeromagnetic anomaly by wavelet transform technique, we reprocessed the aeromagnetic data collected 20 years ago in Beijing area and analyzed the aeromagnetic anomaly qualitatively, integrating geological structure features in the area. In particular, we studied the spatial distributions of the two main faults called Shunyi-Liangxiang fault and Banqiao-Babaoshan-Tongxian fault, which have cut and gone through the central Beijing area striking in NE and EW directions, respectively. The influences of these two faults on the earthquakes have also been discussed briefly. |
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| Keywords: | Beijing area aeromagnetic anomaly multi-scale separation fault analysis |
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