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| 引用本文： | 袁旭东,汪汉胜,柯小平,王志勇. ͬ�������ģ�ͷֲ������Ӱ���о�[J]. 大地测量与地球动力学, 2007, 27(1): 69-76 |
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| 作者姓名： | 袁旭东 汪汉胜 柯小平 王志勇 |
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| 作者单位： | 1. 中国科学院测量与地球物理研究所动力大地测量学重点实验室,武汉,430077;中国科学院研究生院,北京,100049
2. 中国科学院测量与地球物理研究所动力大地测量学重点实验室,武汉,430077 |
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| 基金项目： | 国家自然科学基金(40574010)，中国科学院人事教育局专项基金 |
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| 摘 要： | ????????????????????????????????7.8?????????6.8?????????????????????????????????￡?????????????????????????????????????????????α?????????????????????????????????????????????????????????????Okada????????????????????????????????????????
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| 关 键 词： | ????λ?? ?????? ?????? ???? ??????? |
| 文章编号： | 1671-5942(2007)01-0069-08 |
| 修稿时间： | 2006-07-05 |
ON INFLUENCES OF EARTH STRATIFICATION AND GRAVITATION ON CO-SEISMIC DEFORMATION |
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| Yuan Xudong,Wang Hansheng,Ke Xiaoping,Wang Zhiyong. ON INFLUENCES OF EARTH STRATIFICATION AND GRAVITATION ON CO-SEISMIC DEFORMATION[J]. Journal of Geodesy and Geodynamics, 2007, 27(1): 69-76 |
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| Authors: | Yuan Xudong Wang Hansheng Ke Xiaoping Wang Zhiyong |
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| Affiliation: | 1) Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, CAS, Wuhan 4300772)Graduate University of Chinese Academy of Sciences, Beijing 100049 |
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| Abstract: | The co seismic vertical and horizontal deformations for two earthquakes(Tangshan M7.8 earthquake in 1976,Jiashi M6.8 earthquake in 2003) in China are calculated by use of the two softwares for co seismic and post seismic deformation. The computations are implemented under the cases of taking into account/neglecting the gravitation with elastic homogeneous half space/elastic layered half space earth model respectively. The results show that the influences of earth’s stratification and gravity on the co seismic deformation greatly exceed the resolution of modern observation techniques. It indicates the influences of earth’s stratification and gravity cann’t be ignored in analyzing the similar earthquakes with the Okada’s model. |
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| Keywords: | earthquake dislocation co-seismic deformation earth stratification gravitaty seismic source parameter |
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