Synchronous fluvial response to surface uplift in the eastern Tibetan Plateau: Implications for crustal dynamics

doi:10.1002/2014GL062383

	Synchronous fluvial response to surface uplift in the eastern Tibetan Plateau: Implications for crustal dynamics
	Tian, Yuntao 1; Kohn, Barry P.2; Hu, Shengbiao 3; Gleadow, Andrew J. W.2
刊名	GEOPHYSICAL RESEARCH LETTERS
	2015-01-16
卷号	42 期号:1 页码:29-35
关键词	Tibetan Plateau Thermochronology River incision Continental tectonics
ISSN号	0094-8276
DOI	10.1002/2014GL062383
文献子类	Article
英文摘要	Synchronous response of river erosion to surface uplift is often assumed by studies using thermochronometer-constrained erosion histories to estimate changes in landscape and tectonics. We have tested this assumption by studying river incision histories at two sites (Heishui and Lianghekou) located in the westernmost inland part of the deeply incised eastern Tibetan Plateau. Apatite fission track age-elevation plots for the two sites show clear late Miocene inflection points, marking the time when apparent erosion rates increased fourfold to eightfold to 300-800m/Myr. This timing is further refined as 10-12Ma by thermal history modeling and overlaps within analytical uncertainties with that recorded from the eastern Tibetan Plateau margin 150-200km to the east, demonstrating that river incision propagated rapidly from the margin to the interior in less than 2Ma. Such synchronous regional river incision is consistent with regional surface uplift generated by crustal extrusion along a detachment at depth.
WOS关键词	LOW-TEMPERATURE THERMOCHRONOLOGY ; LONGMEN SHAN ; CENTRAL-ASIA ; EVOLUTION ; MARGIN ; FLOW ; PERSPECTIVE ; TOPOGRAPHY ; INCISION ; BEHAVIOR
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000349036500005
资助机构	NERC(NE/K003232/1) ; NERC(NE/K003232/1) ; NERC(NE/K003232/1) ; NERC(NE/K003232/1) ; NERC(NE/K003232/1) ; NERC(NE/K003232/1) ; NERC(NE/K003232/1) ; NERC(NE/K003232/1)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/86990]
专题	中国科学院地质与地球物理研究所
通讯作者	Tian, Yuntao
作者单位	1.UCL, Dept Earth Sci, London, England 2.Univ Melbourne, Sch Earth Sci, Melbourne, Vic, Australia 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Tian, Yuntao,Kohn, Barry P.,Hu, Shengbiao,et al. Synchronous fluvial response to surface uplift in the eastern Tibetan Plateau: Implications for crustal dynamics[J]. GEOPHYSICAL RESEARCH LETTERS,2015,42(1):29-35.
APA	Tian, Yuntao,Kohn, Barry P.,Hu, Shengbiao,&Gleadow, Andrew J. W..(2015).Synchronous fluvial response to surface uplift in the eastern Tibetan Plateau: Implications for crustal dynamics.GEOPHYSICAL RESEARCH LETTERS,42(1),29-35.
MLA	Tian, Yuntao,et al."Synchronous fluvial response to surface uplift in the eastern Tibetan Plateau: Implications for crustal dynamics".GEOPHYSICAL RESEARCH LETTERS 42.1(2015):29-35.