YNAO OpenIR  > 个人在本单位外知识产出
How does crustal shortening contribute to the uplift of the eastern margin of the Tibetan Plateau?
Liu Chang1,2,3; Zhu BJ(朱伯靖)4; Yang Xiaolin5; Liu Chang, Email: liu@geologie.ens.fr
发表期刊Journal of Asian Earth Sciences
2015-03
卷号98页码:18-25
DOI10.1016/j.jseaes.2014.10.037
收录类别SCI
关键词Longmen Shan Crustal Shortening Viscosity Contrast Eastern Tibetan Plateau Steep Plateau Margin
摘要The eastern margin of the Tibetan Plateau, the Longmen Shan, has triggered a vigorous debate to explain the uplift and maintaining of its steep and high topography. Several mechanical and kinematic models have been previously developed in order to investigate the tectonic and erosional control on the formation mechanism of the Longmen Shan. But the contribution of crustal shortening has never been taken into account due to the lack of significant surface convergence rate (about 3 mm/a) across the Longmen Shan range. We investigate this question through 2D finite element modelling assuming visco-elasticity rheology. The numerical results are constrained with geological and geophysical observations across the Longmen Shan range. We find that even low rate of crustal shortening contributes significantly to the uplift of the Longmen Shan. This contribution has been greatly underestimated in previous studies. The viscosity contrast between the Tibetan Plateau lower crust and the Yangtze crust crucially controls the uplift of the Longmen Shan due to crustal shortening. The ductile Tibetan lower crust thickens to accommodate most of crust shortening, as the eastward movement of the Tibetan Plateau is obstructed by the mechanical strong and stable Yangtze craton. The uplift rate contrast between the Tibetan Plateau and the Sichuan causes a steep uplift rate gradient to produce and maintain the Longmen Shan steep and high topography in the time scale of several million years. Our results support a possible explanation for the paradox of the high topography and low convergence rate at the Longmen Shan range.
项目资助者National Natural Science Foundation of China(41404075)
语种英语
学科领域固体地球物理学
文章类型Article
ISSN1367-9120
URL查看原文
WOS记录号WOS:000348955800002
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
关键词[WOS]WENCHUAN EARTHQUAKE ; LONGMENSHAN FAULT ; FLOW ; DEFORMATION ; EVOLUTION ; MODEL ; TOPOGRAPHY ; TECTONICS ; EXTRUSION ; MECHANISM
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12316
专题个人在本单位外知识产出
通讯作者Liu Chang, Email: liu@geologie.ens.fr
作者单位1.Institute of Geophysics, School of Physics, Huazhong University of Science and Technology, Wuhan, China
2.Laboratoire de Géologie, CNRS-UMR 8538, École Normale Supérieure, Paris, France
3.Key Laboratory of Computational Geodynamics of the Chinese Academy of Sciences, Beijing, China
4.Department of Earth Sciences, University of Durham, Durham, UK
5.Earthquake Administration of Shaanxi Province, Xi’an, China
推荐引用方式
GB/T 7714
Liu Chang,Zhu BJ,Yang Xiaolin,et al. How does crustal shortening contribute to the uplift of the eastern margin of the Tibetan Plateau?[J]. Journal of Asian Earth Sciences,2015,98:18-25.
APA Liu Chang,Zhu BJ,Yang Xiaolin,&Liu Chang, Email: liu@geologie.ens.fr.(2015).How does crustal shortening contribute to the uplift of the eastern margin of the Tibetan Plateau?.Journal of Asian Earth Sciences,98,18-25.
MLA Liu Chang,et al."How does crustal shortening contribute to the uplift of the eastern margin of the Tibetan Plateau?".Journal of Asian Earth Sciences 98(2015):18-25.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
How does crustal sho(2371KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Liu Chang]的文章
[Zhu BJ(朱伯靖)]的文章
[Yang Xiaolin]的文章
百度学术
百度学术中相似的文章
[Liu Chang]的文章
[Zhu BJ(朱伯靖)]的文章
[Yang Xiaolin]的文章
必应学术
必应学术中相似的文章
[Liu Chang]的文章
[Zhu BJ(朱伯靖)]的文章
[Yang Xiaolin]的文章
相关权益政策
暂无数据
收藏/分享
文件名: How does crustal shortening contribute to the uplift of the eastern margin of the Tibetan Plateau?.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。