| 重力作用下的地壳物质流与大陆强震重复周期 |
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| 引用本文： | 周玖.重力作用下的地壳物质流与大陆强震重复周期[J].四川地震,1992(2):1-6. |
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| 作者姓名： | 周玖 |
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| 作者单位： | 四川省地震局 |
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| 摘 要： | 重力作用下的地壳物质流是壳内重要的构造活动现象,它对大陆地区强震起着控制作用。大陆强震重复周期与地壳物质流速相关,在地壳物质流速较快的地区,强震重复周期较短,反之则较长。计算出地壳物质流速不同地区的强震重复周期值。在地壳物质流速低于一定数值的地区内,只能在地壳岩石中产生流变结构,而不致于发生强震。上述看法可供评价有关地区地震危险性时参考。
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| 关 键 词： | 地壳 物质流 地震 重复周期 |
THE CRUSTAL MATERIAL FLOW UNDER THE ACTION OF GRAVITY AND THE RECURRENCE PERIOD OF STRONG CONTINENTAL EARTHQUAKES |
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| Zhou Jiu.THE CRUSTAL MATERIAL FLOW UNDER THE ACTION OF GRAVITY AND THE RECURRENCE PERIOD OF STRONG CONTINENTAL EARTHQUAKES[J].Earthquake Research in Sichuan,1992(2):1-6. |
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| Authors: | Zhou Jiu |
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| Affiliation: | Seismological Bureau of Sichuan Province |
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| Abstract: | Under the action of gravity, the crustal material flow would take place in continent. The recurrence periods of strong earthquakes are correlative with the rates of crustal material flow. In regions with relatively hish rates of crustal material flow, the recurrence periods of strong earthquakes are long. On the contrary, the recurrence periods are short.In this paper, the variors values of recurrence periods and their corresponding flow rates have been presented. These studies would be worthy to carry out the evaluation of earthquake risk in a certain region. |
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| Keywords: | gravitational instability crustal material flow flow rate earthquake recurrence period |
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