| 唐山地震深浅构造关系研究 |
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| 引用本文： | 尤惠川,徐锡伟,吴建平,何正勤.唐山地震深浅构造关系研究[J].地震地质,2002,24(4):571-582. |
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| 作者姓名： | 尤惠川 徐锡伟 吴建平 何正勤 |
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| 作者单位： | 1. 中国地震局地球物理研究所,北京,100081
2. 中国地震局地质研究所,北京,100029 |
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| 基金项目： | 国家发展计划委员会高新技术项目 (2 0 0 1977)资助。 |
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| 摘 要： | 地表观察和浅层高分辨率地震探测表明 ,唐山断裂与地震地表主破裂带的位置、产状均一致 ,且具有高角度西倾的逆冲走滑性质 ,发生过右旋水平错动和向东逆冲的垂直活动 ,而次破裂带与褶皱构造活动引起的其他断裂直接相关。根据瞬变磁场和深地震探测结果分析 ,唐山地区存在莫霍面斜坡和地壳“背斜”、中地壳水平滑脱和扩展断裂、上地壳高角度逆冲走滑断裂和背向斜构造 ,它们组成 1幅多层次、多级序的复式逆断裂 -扩展背斜构造图像 ,控制了唐山地震的孕育和发生
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| 关 键 词： | 地震地表破裂 浅层地震探测 地壳结构 深浅构造关系 唐山地震 |
| 文章编号： | 0253-4967(2002)04-0571-12 |
| 修稿时间： | 2002年9月17日 |
STUDY ON THE RELATIONSHIP BETWEEN SHALLOW AND DEEP STRUCTURES IN THE 1976 TANGSHAN EARTHQUAKE AREA |
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| YOU Hui-chuan XU Xi-wei WU Jian-ping HE Zheng-qin Institute of Geophysics,CSB,Beijing ,China Institute of Geology,CSB,Beijing ,China.STUDY ON THE RELATIONSHIP BETWEEN SHALLOW AND DEEP STRUCTURES IN THE 1976 TANGSHAN EARTHQUAKE AREA[J].Seismology and Geology,2002,24(4):571-582. |
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| Authors: | YOU Hui-chuan XU Xi-wei WU Jian-ping HE Zheng-qin Institute of Geophysics CSB Beijing China Institute of Geology CSB Beijing China |
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| Institution: | YOU Hui-chuan 1) XU Xi-wei 2) WU Jian-ping 1) HE Zheng-qin 1) 1) Institute of Geophysics,CSB,Beijing 100081,China 2) Institute of Geology,CSB,Beijing 100029,China |
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| Abstract: | In this paper, field observation on earthquake surface rupture zone and high-resolution seismic reflection profiling of faults in combination with related geological data have led to some new insights about shallow Quaternary geology and underground fault structure in the 1976 Tangshan earthquake area. On this basis, we analyze prospecting results of deep structure and then study the relationship between deep and shallow structures in the 1976 Tangshan earthquake area, as well discuss tectonic setting and |
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| Keywords: | earthquake surface rupture high-resolution seismic reflection profiling crustal structure relation between deep and shallow structures Tangshan earthquake |
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