刘泽民, 张炳, 周冬瑞, 谢石文, 倪红玉, 赵朋, 朱虹. 东大别地区现代构造应力场空间分布特征研究[J]. 华北地震科学, 2018, 36(2): 23-27. DOI: 10.3969/j.issn.1003-1375.2018.02.004
引用本文: 刘泽民, 张炳, 周冬瑞, 谢石文, 倪红玉, 赵朋, 朱虹. 东大别地区现代构造应力场空间分布特征研究[J]. 华北地震科学, 2018, 36(2): 23-27. DOI: 10.3969/j.issn.1003-1375.2018.02.004
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LIU Ze-min, ZHANG Bing, ZHOU Dong-rui, XIE Shi-wen, NI Hong-yu, ZHAO Peng, ZHU Hong. Spatial Distribution of Modern Tectonic Stress Field in Eastern Dabie Area[J]. North China Earthquake Sciences, 2018, 36(2): 23-27. DOI: 10.3969/j.issn.1003-1375.2018.02.004
Citation: LIU Ze-min, ZHANG Bing, ZHOU Dong-rui, XIE Shi-wen, NI Hong-yu, ZHAO Peng, ZHU Hong. Spatial Distribution of Modern Tectonic Stress Field in Eastern Dabie Area[J]. North China Earthquake Sciences, 2018, 36(2): 23-27. DOI: 10.3969/j.issn.1003-1375.2018.02.004
shu

东大别地区现代构造应力场空间分布特征研究

Spatial Distribution of Modern Tectonic Stress Field in Eastern Dabie Area

    摘要
  • 摘要: 搜集了东大别地区震源机制解资料，利用应力张量平均法、FMSI法计算得出该地区的现代构造应力场空间分布特征并加以分析。结果表明：多数地区最大主压应力轴方位为近EW或NEE向，最小主压应力轴方位为近NS或NNW向，应力轴的倾角较小；应力张量平均法计算结果显示西边界的最大主压应力轴方位为91°，东边界的最大主压应力轴方位为267°；FMSI方法计算结果显示，西边界的最大主压应力轴方位为87°，东边界的最大主压应力轴方位为260°。

     

    Abstract: The spatial distribution of modern tectonic stress field in the eastern Dabie area was inversed and analyzed using the stress tensor average method and FMSI method based on the local mechanisms. The results show that the direction of maximum principal compressive stress axis is EW or NEE, while the minimum is NS or NNW, and the inclination of the stress axis is small. The results of stress tensor average method show that the directions of maximum principal stress axis in the west boundary and east boundary are 91° and 267° respectively. Moreover, the orientations of the west and eastborders are 87° and 260° inversed by FMSI method.

     

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