Numerical simulations on deep subduction of western pacific plate to ne china
文献类型：期刊论文
| 作者 | Zhu Gui-Zhi1,2; Shi Yao-Lin1; Chen Shi1; Zhang Huai1 |
| 刊名 | Chinese journal of geophysics-chinese edition
 |
| 出版日期 | 2009-04-01 |
| 卷号 | 52期号:4页码:950-957 |
| 关键词 | Temperature-dependent viscosity Western pacific plate Ne china Deep subduction Trench retreating |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2009.04.011 |
| 通讯作者 | Zhu gui-zhi(guizhi.zhu@erdw.ethz.ch) |
| 英文摘要 | Using temperature-dependent viscosity and considering depth difference between oceanic plate and continental plate, we discuss numerically the possible geodynamical process for tomography results in ne china with convergence velocity of pacific plate and eurasian plate and multiple trench retreating models. the results front our models show that trench retreat is necessary for reproducing the flat lying slab as observed by tomography under ne china. occurrence of lying slab on 660 km phase change boundary is mainly clue to the higher viscosity contrast between lower mantle and upper mantle. the subduction of the pacific plate to eurasian plate is most likely to have occurred before 70 ma b. p., the trench retreating velocity is probably variable but must be less than 45mm/a which is estimated by sonic geologists. as to the reason of trench retreat. our simulation results indicate that the possible force for trench retreat is the eastward asthenospheric flow and pushing effect under the continental lithosphere which may be related to india-eurasia collision. so the extensional tectonic features must be, attributed to the total effects of india-eurasia collision and pacific-eurasia convergence. |
| WOS关键词 | TEMPERATURE-DEPENDENT VISCOSITY ; STRONGLY VARIABLE VISCOSITY ; MANTLE CONVECTION ; EASTERN CHINA ; MODELS ; SLAB ; VOLCANISM ; VELOCITY ; FLOW ; LINK |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000265665400011 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2402857 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhu Gui-Zhi |
| 作者单位 | 1.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 2.China Earthquake Adm, Monitoring Ctr 2, Xian 710054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu Gui-Zhi,Shi Yao-Lin,Chen Shi,et al. Numerical simulations on deep subduction of western pacific plate to ne china[J]. Chinese journal of geophysics-chinese edition,2009,52(4):950-957. |
| APA | Zhu Gui-Zhi,Shi Yao-Lin,Chen Shi,&Zhang Huai.(2009).Numerical simulations on deep subduction of western pacific plate to ne china.Chinese journal of geophysics-chinese edition,52(4),950-957. |
| MLA | Zhu Gui-Zhi,et al."Numerical simulations on deep subduction of western pacific plate to ne china".Chinese journal of geophysics-chinese edition 52.4(2009):950-957. |
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来源：中国科学院大学
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