| Prilimary result of temperature distribution and associated thermal stress in crust in Tianshui, China |
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| 作者姓名： | 刘耀炜 高安泰 施锦 苏鹤军 |
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| 作者单位： | [1]School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China [2]Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China [3]Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China [4]Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 730000, China |
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| 摘 要： |
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| 关 键 词： | 地震 地壳构造 热应力 数字模拟 |
| 文章编号： | 1000-9116（2007）06-0641-15 |
| 收稿时间： | 2007-03-02 |
| 修稿时间： | 2007-10-08 |
Prilimary result of temperature distribution and associated thermal stress in crust in Tianshui, China |
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| Liu Yao-wei , Gao An-tai , Shi Jin and Su He-jun.Prilimary result of temperature distribution and associated thermal stress in crust in Tianshui, China[J].Acta Seismologica Sinica(English Edition),2007,20(6):641-655. |
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| Authors: | Liu Yao-wei Gao An-tai Shi Jin and Su He-jun |
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| Institution: | (1) School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China;(2) Institute of Crustal Dynamics, China Earthquake Administration, Beijing, 100085, China;(3) Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou, 730000, China;(4) Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou, 730000, China |
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| Abstract: | The heat flow in crust and the thermal stress generated by the flow play a very important role in earthquake occurrence. Different crustal structure has different effect on heat distribution and associated thermal stress. In all of typical seismogenic crustal structure models, including the bulge of Moho surface, the deep-large fault in the mid-lower crust, low-velocity and high-conductive layer in the middle crust, and the typical crustal structure in mid-upper crust, the thermal stress produced by deep heat disturbance may move up to the mid-upper crest. This leads to upper brittle part of crust break and hence, strong earthquakes. This result is constructive in enhancing our understanding of the role of deep fieat flow in curst in development of earthquake and its generation, as well as the generation mechanism of the shallow flowing fluid. |
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| Keywords: | earthquake crust structure thermal stress numerical simulation geothermal field |
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