| Model of rigid and elastic-plastic motion in intraplate blocks and strain status of principal blocks in Chinese mainland |
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| 作者姓名： | 李延兴 黄珹 胡新康 帅平 胡小工 张中伏 |
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| 作者单位： | LI Yan-xing1)HUANG Cheng2) HU Xin-kang1) SHUAI Ping1) HU Xiao-gong2) ZHANG Zhong-fu1) 1) First Crustal Deformation Monitoring Center，China Seismological Bureau，Tianjin 300180，China 2) Shanghai Observatory，Chinese Academy of Sciences，Shanghai 20 |
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| 基金项目： | State Key Basic Development and Program Project (G19980407). |
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| 摘 要： | Introduction The Chinese mainland is located in the southeastern part of Eurasia plate and encircled by India, Eurasia, Pacific and Philippine Sea plates. It is one of areas with the strongest tectonic de-formation, especially Qingzang (QinghaiXizang) plateau and NS tectonic zone where the tec-tonic activity is more intensive and intricate. The main part of tectonic activity of Chinese mainland includes a series of tectonic zones and active blocks divided by them. Therefore, the research…
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| 收稿时间： | 8 May 2001 |
| 修稿时间： | 13 August 2001 |
Model of rigid and elastic-plastic motion in intraplate blocks and strain status of principal blocks in Chinese mainland |
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| LI Yan-xing,HUANG Cheng,HU Xin-kang,SHUAI Ping,HU Xiao-gong,ZHANG Zhong-fu.Model of rigid and elastic-plastic motion in intraplate blocks and strain status of principal blocks in Chinese mainland[J].Acta Seismologica Sinica(English Edition),2001,14(6):603-610. |
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| Authors: | LI Yan-xing HUANG Cheng HU Xin-kang SHUAI Ping HU Xiao-gong ZHANG Zhong-fu |
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| Institution: | 1. First Crustal Deformation Monitoring Center, China Seismological Bureau,
2. Shanghai Observatory, Chinese Academy of Sciences, |
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| Abstract: | The model of rigid and elastic-plastic motion and strain in intraplate blocks is established in the paper. The unique of strain parameters and minimum root-mean-square error of velocity residual of blocks are tested in the model. Based on the velocity fields in Chinese mainland and its peripheral areas, the strain parameters of 8 blocks are estimated and their strain status analyzed. The estimated strain status of each block is well consistent with those derived by the methods of geology and geophysics. The principal direction of collision force from India plate to Eurasia plate estimated from the azimuth of principal compressive strain of Himalaya block might be N7.1E. |
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| Keywords: | model of block movement and strain test of model strain status of block |
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