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  2. 地质与地球物理研究所
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  4. 岩石圈演化国家重点实验室
Differential growth of the northern Tibetan margin: evidence for oblique stepwise rise of the Tibetan Plateau

文献类型：期刊论文

作者Wang, Fei1,2; Shi, Wenbei1; Zhang, Weibin1; Wu, Lin1; Yang, Liekun1; Wang, Yinzhi1; Zhu, Rixiang1
刊名SCIENTIFIC REPORTS
出版日期2017-01-24
卷号7
ISSN号2045-2322
DOI10.1038/srep41164
文献子类Article
英文摘要Models of how high elevations formed across Tibet predict: (a) the continuous thickening of a "viscous sheet"; (b) time-dependent, oblique stepwise growth; and (c) synchronous deformation across Tibet that accompanied collision. Our new observations may shed light on this issue. Here, we use Ar-40/Ar-39 and (U-Th)/He thermochronology from massifs in the hanging walls of thrust structures along the Kunlun Belt, the first-order orogenic range at the northern Tibetan margin, to elucidate the exhumation history. The results show that these massifs, and hence the plateau margin, were subject to slow, steady exhumation during the Early Cenozoic, followed by a pulse of accelerated exhumation during 40-35 Ma. The exhumation rate increases westward (from similar to 0.22 to 0.34 and 0.5 mm/yr). The twofold increase in exhumation in the western part (0.5 mm/yr) compared to the eastern part suggests westward increases in exhumation and compressional stress along the Kunlun Belt. We relate these observations to the mechanisms responsible for the oblique stepwise rise of Tibet. After collision, oblique subduction beneath Kunlun caused stronger compressional deformation in the western part than in the eastern part, resulting in differential growth and lateral extrusion.
WOS关键词EASTERN KUNLUN MOUNTAINS ; INDIA-ASIA COLLISION ; QAIDAM BASIN ; NW CHINA ; U-PB ; CONSTRAINTS ; THERMOCHRONOLOGY ; AR-40/AR-39 ; DIFFUSION ; GEOCHRONOLOGY
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000392474200001
出版者NATURE PUBLISHING GROUP
资助机构"Strategic Priority Research Program" of the Chinese Academy of Science(XDB03020203) ; "Strategic Priority Research Program" of the Chinese Academy of Science(XDB03020203) ; Natural Science Foundations of China(41673015 ; Natural Science Foundations of China(41673015 ; 41025010 ; 41025010 ; 41221002) ; 41221002) ; "Strategic Priority Research Program" of the Chinese Academy of Science(XDB03020203) ; "Strategic Priority Research Program" of the Chinese Academy of Science(XDB03020203) ; Natural Science Foundations of China(41673015 ; Natural Science Foundations of China(41673015 ; 41025010 ; 41025010 ; 41221002) ; 41221002) ; "Strategic Priority Research Program" of the Chinese Academy of Science(XDB03020203) ; "Strategic Priority Research Program" of the Chinese Academy of Science(XDB03020203) ; Natural Science Foundations of China(41673015 ; Natural Science Foundations of China(41673015 ; 41025010 ; 41025010 ; 41221002) ; 41221002) ; "Strategic Priority Research Program" of the Chinese Academy of Science(XDB03020203) ; "Strategic Priority Research Program" of the Chinese Academy of Science(XDB03020203) ; Natural Science Foundations of China(41673015 ; Natural Science Foundations of China(41673015 ; 41025010 ; 41025010 ; 41221002) ; 41221002)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53140]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Wang, Fei
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Fei,Shi, Wenbei,Zhang, Weibin,et al. Differential growth of the northern Tibetan margin: evidence for oblique stepwise rise of the Tibetan Plateau[J]. SCIENTIFIC REPORTS,2017,7.
APA Wang, Fei.,Shi, Wenbei.,Zhang, Weibin.,Wu, Lin.,Yang, Liekun.,...&Zhu, Rixiang.(2017).Differential growth of the northern Tibetan margin: evidence for oblique stepwise rise of the Tibetan Plateau.SCIENTIFIC REPORTS,7.
MLA Wang, Fei,et al."Differential growth of the northern Tibetan margin: evidence for oblique stepwise rise of the Tibetan Plateau".SCIENTIFIC REPORTS 7(2017).

入库方式： OAI收割

来源：地质与地球物理研究所

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