| 华北地区的现代构造运动 |
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| 引用本文： | 张存德,向家翠.华北地区的现代构造运动[J].地震地质,1990,12(3):265-271. |
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| 作者姓名： | 张存德 向家翠 |
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| 作者单位： | 国家地震局地质研究所
(张存德)，国家地震局地质研究所(向家翠) |
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| 摘 要： | 华北地区的现代垂直构造运动基本上沿袭着新构造运动的格局发展,大体上可以划分为鄂尔多斯上升区、汾渭下降带、太行山上升区、渤海下降区、冀豫下降区、冀辽上升区、齐鲁上升区和定县—德州过渡区等八部分。此外还有较小规模的银川下降区、中卫下降区、五原—呼和浩特下降区和下辽河下降区等四部分。 现代水平运动不甚强烈,年应变率为10-8级。主压应变轴向北50°东左右。南东向的拉张应变占主导地位
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| 关 键 词： | 华北 现代构造 地壳形变 大地测量 |
ON THE RECENT TECTONIC MOVEMENT IN NORTH CHINA |
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| Zhang Cun-de and Xiang Jia-cui.ON THE RECENT TECTONIC MOVEMENT IN NORTH CHINA[J].Seismology and Geology,1990,12(3):265-271. |
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| Authors: | Zhang Cun-de and Xiang Jia-cui |
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| Abstract: | The recent vertical movement in North China region inherits generally the development of neotectonic framework. Eight zones in the region can be distinguished, such as Ordos uplift zone, Fen-Wei subsidence zone, Taihangshan uplift zone, Bohai subsidence zone, Heibei-Henan subsidence zone, Hebei-Liaoning uplift zone, Qilu uplift zone and Ding xian-Dezhou transition zone. In addition, some small subsidence zones also exist, such as Yinchuan, Zhongwei, Wuyuan-Hohhot and Xialiaohe subsidence zones.The recent horizontal movement is not intense in this region, annual strain rate is an order of 10-6. Orientation of principal compression axis is NE 50°, and orientation of principal extention axis is SE predominant. Annual strain value of the latter is more than that of the former |
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| Keywords: | North China Recent tectonic movement Crustal deformation Geodetie measurement |
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