| 山西地区的地壳应力场 |
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| 引用本文： | 刘巍,赵新平.山西地区的地壳应力场[J].山西地震,1993(3):3-11. |
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| 作者姓名： | 刘巍 赵新平 |
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| 作者单位： | 山西省地震局
(刘巍，赵新平，安卫平)，山西省地震局(张开建) |
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| 摘 要： | 根据近20年山西地区的震源机制结果,得出了山西地壳应力场存在着有别于华北应力场的局部小区域应力场,这种小区域应力场在中部断陷盆地都是以北西—北北西向的水平拉张作用为主,而在东、西两侧隆起区则是以水平挤压作用为主的结论.但如果把上述断层面解中的所有P轴、T轴再分别投影到吴尔夫网上,得到是一个一致性很好的断层面解,由此推断山西地区的平均应力场的主要特征与华北应力场的基本特征完全相同,而山西局部小区域应力场的特征随之消失.
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| 关 键 词： | 地壳 应力场 震源机制 地震活动性 |
The Crustal Stress Field in Shanxi Province |
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| . Liu Wei Zhao Xinping An Weiping Zhang Kaijian.The Crustal Stress Field in Shanxi Province[J].Earthquake Research in Shanxi,1993(3):3-11. |
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| Authors: | Liu Wei Zhao Xinping An Weiping Zhang Kaijian |
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| Institution: | Seismological Bureau of Shanxi Province |
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| Abstract: | The data of focal mechanism for 20 years in Shanxi province show that there is a local regional stress field
different from North China stress field. In central downfaulted basin, the stress field is chiefly concerned with
the horizontal extension of NW-NNW direction. In upwarded district of both east end west side, it is the horizn-
tal compression . After all p- and T-axes of the fault plane solutions were projected on Wulff's net, no features
of the local regional stress field display. |
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| Keywords: | Shanxi stress field feature |
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