| 地壳快速弹性破裂与强震 |
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| 引用本文： | 李永善,韩恒悦,范亚民,李金政.地壳快速弹性破裂与强震[J].西北地震学报,1981,3(1):41-53. |
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| 作者姓名： | 李永善 韩恒悦 范亚民 李金政 |
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| 作者单位： | 陕西省地震局
(李永善，韩恒悦，范亚民)，陕西省地震局(李金政) |
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| 摘 要： | 本文对非均质地壳的现代形变和破裂过程,构造体系与地震体系,前兆体系与破裂信息以及我国大陆区的强震破裂带(破裂区)与破裂网等问题进行了探讨。认为强震的发生过程不是孤立的,是现代构造活动中的一种高速、高能弹性破裂(或再破裂)体系的一部分。强震破裂网的骨架主要取决于地壳强度的非均质性;而区域破裂的方式、优势方向和动态主要取决于区域应力场的变化。因此,地震活动有网络体系性,前兆效应也应有网络体系性。这类问题的研究对前兆观测、分析震情监视预报等工作都有重要的实际意义。
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| 收稿时间： | 1980/2/1 0:00:00 |
THE PROCESSES OF THE ELASFIC RUPTURE IN THE EARTH'S CRUST AND BIG EARTHQUAKES |
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| Li Yongshan,Han Hengyue,Fan Yamin and Li Jinzheng.THE PROCESSES OF THE ELASFIC RUPTURE IN THE EARTH''S CRUST AND BIG EARTHQUAKES[J].Northwestern Seismological Journal,1981,3(1):41-53. |
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| Authors: | Li Yongshan Han Hengyue Fan Yamin and Li Jinzheng |
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| Institution: | Seismological Bureau of Shanxi Province,Seismological Bureau of Shanxi Province,Seismological Bureau of Shanxi Province and Seismological Bureau of Shanxi Province |
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| Abstract: | In this paper, the process of the present deformation and rupture in the inhomogeneous earth''s crust, the system of precursors and the precursor of the rupture, the zones of the strong seismic ruptures and the nefworks of ruptures in the crust of China''s continent have been discussed. It has been believed that a process of a big eacthquake, which is not insulary, is a part of the system of quick rupture of tectonic activity from which a large a mount of elastic energy is veleased, The frame of the network of strong seismic ruptures mostly depends on the inhomogeneous strength of the earth''s crust. But the form, major direction and the tendency of regional rupture mostly depend on the variety of field stresses. Thus, the seismlc activity and precursors should possess the properties of the network and system. The study of these problems is of great signifcame to the analysis of seismic activilies and precursors. |
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