DOI: 10.1016/j.earscirev.2019.02.003
论文题名: Palaeodrainage evolution of the large rivers of East Asia, and Himalayan-Tibet tectonics
作者: Zhang P. ; Najman Y. ; Mei L. ; Millar I. ; Sobel E.R. ; Carter A. ; Barfod D. ; Dhuime B. ; Garzanti E. ; Govin G. ; Vezzoli G. ; Hu X.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2019
卷: 192 起始页码: 601
结束页码: 630
语种: 英语
中文关键词: Central Myanmar Basin
; Eastern Tibet
; Irrawaddy River
; Palaeodrainage
; Red River
; Yarlung Tsangpo
英文关键词: Cenozoic
; crustal deformation
; drainage
; geomorphology
; river flow
; river water
; suture zone
; uplift
; China
; Far East
; Himalayas
; Irrawaddy River
; Myanmar
; Red River [Asia]
; Xizang
英文摘要: Understanding the tectonics that gave rise to the formation of Tibet is critical to our understanding of crustal deformation processes. The unusual geomorphology of the drainage basins of East Asia's major rivers has been proposed to be the result of either (1) distortion and attenuation of antecedent drainages as India indents into Asia, which can therefore be used as passive strain markers of horizontal shear, or (2) due to fragmentation by river captures and flow reversals of an originally continental-scale drainage, in which the major East Asian rivers once flowed into the palaeo-Red River. If the latter hypothesis is correct, then it has been proposed that dating the drainage fragmentation constrains the timing of uplift of Tibet. A number of sedimentary provenance studies have been undertaken in order to determine whether the palaeo-Red River was once a river of continental proportions into which the upper reaches of the Yangtze, Salween, Mekong, Irrawaddy, and Yarlung drained. We have assessed the evidence that the Yarlung originally flowed into the palaeo-Red river, and then sequentially into the Irrawaddy and Brahmaputra, connecting to the latter first via the Lohit and then the Siang. For this river system, we have integrated our new data from the Paleogene-Recent Irrawaddy drainage basin (detrital zircon U-Pb with Hf and fission track, rutile U-Pb, mica Ar-Ar, bulk rock Sr-Nd, and petrography) with previously published data, to produce a palaeodrainage model that is consistent with all datasets. In our model, the Yarlung never flowed into the Irrawaddy drainage: during the Paleogene, the Yarlung suture zone was an internally drained basin, and from Neogene times onwards the Yarlung drained into the Brahmaputra in the Bengal Basin. The Central Myanmar Basin, through which the Irrawaddy River flows today, received predominantly locally-derived detritus until the Middle Eocene, the Irrawaddy initiated as a through-going river draining the Mogok Metamorphic Belt and Bomi-Chayu granites to the north sometime in the Late Eocene to Early Oligocene, and the river was dominated by a stable MMB-dominated drainage throughout the Neogene to present day. Existing evidence does not support any connection between the Yarlung and the Red River in the past, but there is a paucity of suitable palaeo-Red River deposits with which to make a robust comparison. We argue that this limitation also precludes a robust assessment of a palaeo-connection between the Yangtze/Salween/Mekong and the Red River; it is difficult to unequivocally interpret the recorded provenance changes as the result of specific drainage reorganisations. We highlight the palaeo-Red River deposits of the Hanoi Basin as a potential location for future research focus in view of the near-complete Cenozoic record of palaeo-Red River deposits at this location. A majority of previous studies consider that if a major continental-scale drainage ever existed at all, it fragmented early in the Cenozoic. Such a viewpoint would agree with the growing body of evidence from palaeoaltitude studies that large parts of SE Tibet were uplifted by this period. This then leads towards the intriguing question as to the mechanisms which caused the major period of river incision in the Miocene in this region. © 2019 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165983
Appears in Collections: 气候变化与战略
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作者单位: Key Laboratory of Tectonics and Petroleum Resources (China University of Geosciences), Ministry of Education, Wuhan, 430074, China; Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, United Kingdom; NERC Isotope Geoscience Laboratory, BGS Keyworth, Nottingham, NG12 5GG, United Kingdom; Institute of Geosciences, Universität Potsdam, Karl-Liebknecht-Strasse 24-25, Potsdam-Golm, 14476, Germany; Department of Earth & Planetary Sciences, Birkbeck, University of London, Malet Street, Bloomsbury, WC1E 7HX, United Kingdom; Argon Isotope Facility, SUERC, Rankine Avenue, East Kilbride, G750QF, United Kingdom; Bristol Isotope Group, School of Earth Sciences, University of Bristol, Wills Memorial Building, Queen's Road, Bristol, BS8 1RJ, United Kingdom; Department of Earth and Environmental Sciences, University of Milano-Bicocca, Milano, 20126, Italy; Research Institute, China National Offshore Oil Corporation (CNOOC), Beijing, 10027, China
Recommended Citation:
Zhang P.,Najman Y.,Mei L.,et al. Palaeodrainage evolution of the large rivers of East Asia, and Himalayan-Tibet tectonics[J]. Earth Science Reviews,2019-01-01,192