| 地球北纬30°构造形变带讨论 |
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| 引用本文： | 钟嘉猷.地球北纬30°构造形变带讨论[J].地质科学,2012,47(1):62-72. |
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| 作者姓名： | 钟嘉猷 |
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| 作者单位： | 中国科学院地质与地球物理研究所 北京 100029 |
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| 摘 要： | 北纬30°构造形变带是地球形变最为活跃的区段,许多地震、电、磁等与地质演化有着直接或间接联系的"奇异现象"都发生在地球北纬20°～40°的环带上。研究表明,这主要与地球内部应力作用分布状态有关。地球作为一个球体(忽略球体的不规则性),在相对固定的旋转轴运动下,其内部应力分布形式,在南北半球的中纬度区(即20°～40°间)均为应力集中和应力转换区,使之成为地球上的"特殊地段",出现了各种物理与地质构造变迁现象。
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| 关 键 词： | 北纬30° 构造形变带 形变转换带 应力转换带 |
| 收稿时间： | 2011-04-06 |
| 修稿时间： | 2011-04-06; |
A study on the 30°N anomalous tectonic deformation zone |
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| Zhong Jiayou.A study on the 30°N anomalous tectonic deformation zone[J].Chinese Journal of Geology,2012,47(1):62-72. |
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| Authors: | Zhong Jiayou |
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| Institution: | Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | Many "strange" phenomena,such as seismic,electric,magnetic,or other ones related with geological evolution,have occurred in a zone covering 20°～40°N of the Earth.This zone,so called 30°N tectonic deformation zone,has been the most active part in deformation and is related to the interior stress field of the Earth.When the Earth,as a sphere(ignoring its irregularities),revolves on its own axis,stress concentration and transform significantly occur within two latitudinal zones:one covers 20°～40°N and one covers 20°～40°S.It is the stress concentration and transform that cause most of those "strange" phenomena mentioned above. |
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| Keywords: | 30°N Tectonic deformation zone Deformation transform zone Stress transform zone |
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