| 辽西地区垂直形变场演化特征及与彰武地震的关系 |
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| 引用本文： | 卢良玉,林玉祥.辽西地区垂直形变场演化特征及与彰武地震的关系[J].东北地震研究,1994(1). |
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| 作者姓名： | 卢良玉 林玉祥 |
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| 作者单位： | 辽宁省地震局 |
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| 摘 要： | 研究了辽西地区垂直形变场的演化特征，结果表明，该区形变场的演化具有明显的阶段性和分区性．１９８２年以前，彰武、新民一带是形变梯度相对密集带，且形变等值线在此发生转折；１９８２－１９８４年在新民一带出现过加速上升；彰武地震后在震中区出现最大下沉量３０多毫米的北西向下沉条带．１９５８年以来，本区形变差异运动主要集中在北部，绕阳河断裂在近期有过明显活动，它是彰武４．８级地震的控震构造．
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| 关 键 词： | 垂直形变场 形变梯度 演化特征 |
EVOLUTION CHARACTERISTIC OF VERTICAL DEFORMATION FIELD IN WEST OF LIAONING PROVINCE AND RELATION BETWEEN IT AND ZHANGWU EARTHQUAKE |
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| Lu Liangyu Lin Yuxiang.EVOLUTION CHARACTERISTIC OF VERTICAL DEFORMATION FIELD IN WEST OF LIAONING PROVINCE AND RELATION BETWEEN IT AND ZHANGWU EARTHQUAKE[J].Seismological Research of Northeast China,1994(1). |
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| Authors: | Lu Liangyu Lin Yuxiang |
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| Institution: | Seismological Bureau of Liaoning Province |
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| Abstract: | In this paper,the evolution characteristic of vertical deformation field in thewest of Liaoning has been studied.The results show that this evolution is possessed of clearfeature of period and zoning.Before 1982,Zhangwu,Xinmin areas are relative dense zone of the deformation gradient,and here deformation isolines start turning. From 1982 to 1984,accelerated elevation ap-peared in Xinmin.After Zhangwu earthquake,the subsidence band in which the largest one ismore than 30 mm appeared in the epicentral area in direction NW. The differential movementof the deformation in this area has concentrated in the northern part since 1958.The Raoyangriver fault is active in modern times. |
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| Keywords: | vertical deformation field deformation gradient characteristics of evolution |
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