| 运城盆地的现今构造活动及现代地壳应力场的基本特征 |
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| 引用本文： | 刘巍,安卫平,赵新平.运城盆地的现今构造活动及现代地壳应力场的基本特征[J].山西地震,1996(2). |
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| 作者姓名： | 刘巍 安卫平 赵新平 |
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| 作者单位： | 山西省地震局 |
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| 摘 要： | 大量震源机制解结果表明，运城盆地存在以水平拉张为主要特点的局部小区域应力场，盆地北部水平挤压分量占优势。这些特点不同于山西断陷带其它诸盆地局部小区域应力场的特点。由这些震源机制解结果中所有Ｐ轴、Τ轴做出的运城盆地的平均应力场，与华北区域地壳应力场和山西平均应力场的结果基本一致。说明运城盆地在宏观上、整体上仍严格受华北区域应力场的控制，其局部小区域应力场也是在华北区域应力场范畴内活动
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| 关 键 词： | 应力场 构造运动 运城盆地 |
Recent Tectonic Movement and Recent Crust Stress Field in Yuncheng Basin |
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| Liu Wei,An Weiping,Zhao Xinping.Recent Tectonic Movement and Recent Crust Stress Field in Yuncheng Basin[J].Earthquake Research in Shanxi,1996(2). |
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| Authors: | Liu Wei An Weiping Zhao Xinping |
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| Institution: | Seismological Bureau of Shanxi Province |
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| Abstract: | A host of focal mechanism solutions show that there is a locally small regional stress field characterized by horizontal compresion component is dominant in the north of the basin.These features are different from the features of the locally small regional stress fields of other basins in Shanxi rift zone.The mean stress field in Yuncheng basin calculated by all p and T axes of the focal mechanism solutions is coincident with North China regional stress field and Shanxi mean stress field essentially.The result suggests that Yuncheng basin is controlled by North China regional stress field macroscopically and wholly,the locally small regional stress field variates within the limits of North China regional stress field. |
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| Keywords: | Stress field Tectonic movement Yuncheng basin |
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