| 华北地区的共轭地震构造带 |
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| 引用本文： | 张四昌,刁桂苓.华北地区的共轭地震构造带[J].华北地震科学,1995,13(4):1-8. |
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| 作者姓名： | 张四昌 刁桂苓 |
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| 作者单位： | 河北省地震局，天津市地震局 |
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| 摘 要： | 本文采用小地震活动图象和４．０级（Ｍｓ）以上地震震源机制资料的构造分析方法，得到一幅华北地区震源构造在地面的投影分布图，它显示４条ＮＮＥ－ＮＥ向和１条ＮＷＷ－ＮＷ向地震构造带交切成的共轭剪切构造格架。每条地震构造带又由一系列共轭剪切构造组成。由发生在带内的５个大震序列共轭破裂特征发现，共轭地震构造的孕震与控震作用是地震构造带形成的机制。
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| 关 键 词： | 华北地区 震源机制 共轭剪破裂 地震构造带 |
CONJUGATE SEISMOTECTONIC ZONE IN NORTH CHINA AREA |
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| Zhang Sichang.CONJUGATE SEISMOTECTONIC ZONE IN NORTH CHINA AREA[J].North China Earthquake Sciences,1995,13(4):1-8. |
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| Authors: | Zhang Sichang |
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| Abstract: | By tectonic analysis of the images of small earthquake activity and focal mechanism data of earth quakes with magnitude of more than 4. 0 (Ms), a distribution map of focal tectonics in North China has been obtained, which shows a conjugate shear tectonic framwork intersected by four NNE-NE and one NWW-NW seismotectonic zones. Each seismotectonic zone consists of a series of conjugate shear tectonics. From the conjugate fracture characteristics of four large earthquake sequences occurred in the zone, it can be found that the seismogenic and earthquake-controlling function of conjugate seismic tectonic is the mechanism of the formation of seismotectonic zones. |
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| Keywords: | North China image of small earthquake activity focal mechanism conjugate shear tectonic seismogenic function earthquake-controlling function |
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