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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
Relief history and denudation evolution of the northern Tibet margin: Constraints from Ar-40/Ar-39 and (U-Th)/He dating and implications for far-field effect of rising plateau

文献类型：期刊论文

作者Wang, Fei1,2; Feng, Huile1; Shi, Wenbei1; Zhang, Weibin1; Wu, Lin1; Yang, Liekun1; Wang, Yinzhi1; Zhang, Zhigang1; Zhu, Rixiang1
刊名TECTONOPHYSICS
出版日期2016-04-22
卷号675页码:196-208
关键词Ar-40/Ar-39 dating (U-Th)/He dating Age-elevation profile Denudation evolution Relief history Far-field effect
DOI10.1016/j.tecto.2016.03.001
文献子类Article
英文摘要How does the rising Tibetan Plateau affect its peripheral region? The current understanding of the mechanism of orogenic plateau development is incomplete and thus no consensus yet exists in this regard. However, our new Ar-40/Ar-39 and (U-Th)/He dataset presented in this study may shed some light on this issue. Ar-40/Ar-39 dating, on two vertical transects from the massif between Nuomuhong and Golmud, indicates that the Eastern Kunlun Range was built-up and exhumated during the later Triassic initially, and a minimum overburden of similar to 11.7/14.0 km has been eroded since similar to 220 Ma. (U-Th)/He age-elevation relationships (AERs) indicate a rapid exhumation event at similar to 40 Ma following a long period of slow exhumation phase from late Mesozoic to early Eocene time. In this study, two scenarios - one assuming a single stage and the other assuming multiple stages of evolution history - are modeled. Modeling of a multiple stage scenario is reasonable and is able to reflect the "actual" situation, which reveals the entire denudation and relief history of the northern Tibet from late Mesozoic to the present time. After prolonged denudation before 50 Ma, a low topography (similar to 0.17 times the relief of the present) developed by 50 Ma with an erosion rate of 0.013(-0.013)(+0.025) mm/yr. The highest relief (similar to 1.82 times the relief of the present) of the Cenozoic time came into being at 40 Ma with an erosion rate of 0.052 +/- 0.025 mm/yr, which was possibly a result of the collision between India and Eurasia. Subsequently, the relief steadily decreased to the present level due to continued denudation. This suggests that deformation propagation from the continued convergence boundary between India and Eurasia was insignificant after the construction of the highest relief. This observation is broadly consistent with published accounts on the stratigraphic, cooling, and faulting histories of the northern Tibet margin. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词EASTERN KUNLUN RANGE ; CENOZOIC TECTONIC EVOLUTION ; U-PB GEOCHRONOLOGY ; QAIDAM BASIN ; APATITE (U-TH)/HE ; CLIMATE-CHANGE ; NW CHINA ; NEIGHBORHOOD ALGORITHM ; GEOPHYSICAL INVERSION ; NORTHEASTERN TIBET
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000377325500012
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) ; "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(41521062 ; Natural Science Foundations of China(41521062 ; Natural Science Foundations of China(41521062 ; Natural Science Foundations of China(41521062 ; 41025010) ; 41025010) ; 41025010) ; 41025010) ; "Strategic Priority Research Program" of the Chinese Academy of Science(XDB03020203) ; "Strategic Priority Research Program" of the Chinese Academy of Science(XDB03020203) ; "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(41521062 ; Natural Science Foundations of China(41521062 ; Natural Science Foundations of China(41521062 ; Natural Science Foundations of China(41521062 ; 41025010) ; 41025010) ; 41025010) ; 41025010)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53437]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
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, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Fei,Feng, Huile,Shi, Wenbei,et al. Relief history and denudation evolution of the northern Tibet margin: Constraints from Ar-40/Ar-39 and (U-Th)/He dating and implications for far-field effect of rising plateau[J]. TECTONOPHYSICS,2016,675:196-208.
APA Wang, Fei.,Feng, Huile.,Shi, Wenbei.,Zhang, Weibin.,Wu, Lin.,...&Zhu, Rixiang.(2016).Relief history and denudation evolution of the northern Tibet margin: Constraints from Ar-40/Ar-39 and (U-Th)/He dating and implications for far-field effect of rising plateau.TECTONOPHYSICS,675,196-208.
MLA Wang, Fei,et al."Relief history and denudation evolution of the northern Tibet margin: Constraints from Ar-40/Ar-39 and (U-Th)/He dating and implications for far-field effect of rising plateau".TECTONOPHYSICS 675(2016):196-208.

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来源：地质与地球物理研究所

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