IGGCAS OpenIR  > 岩石圈演化国家重点实验室
Post-glacial entrenchment and knickpoint migration of the Yarlung Tsangpo Gorge, southeastern Tibetan Plateau
Xu, Qinqin1,2; Ji, Jianqing3; Zhong, Dalai2; Hu, Yan3; Deino, Alan4; Chen, Jianjun3; Tu, Jiyao3; Liu, Haichao3; Wang, Fengyi3; Sun, Dongxia2
2020-06-15
Source PublicationJOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
Volume195Pages:23
AbstractThe formation of the Yarlung Tsangpo river system is commonly thought to be controlled by tectonic processes initiated several million years ago. However, climate change may also play an important role in guiding drainage evolution. Here we reconstruct the drainage history of the Yarlung Tsangpo Gorge using field observations, age constraints from optically stimulated luminescence and radiocarbon dating, paleosalinity reconstruction and grain size analysis of lacustrine deposits, and river valley characteristics. Field observations, clay boron-derived paleosalinity reconstruction and grain size analysis of lacustrine deposits demonstrate that a closed inland saline lake existed upstream of the Yarlung Tsangpo Gorge, implying that cutting of the gorge postdated this paleolake. Optically stimulated luminescence and radiocarbon dating suggest that the paleolake formed at least 51 ka and terminated after similar to 13 ka. With a shift in global climate following the Last Glacial Maximum, the paleolake drained by river capture, and the gorge entrenchment commenced at the village of Jiala northwest of the Namche Barwa peak, approximately 13-10 ka ago. The evolution of the Yarlung Tsangpo occurred on a remarkably short timescale of just tens of thousands of years. In response to drainage system reorganization, the Yarlung Tsangpo incised at an average rate of at least 26 mm/yr. The rapid fluvial incision initiated at Jiala similar to 13 ka ago propagated rapidly upstream at similar to 2.12 m/yr. The Yarlung Tsangpo knickpoint has not stabilized, but will likely continue to migrate upstream.
KeywordPaleolake River capture Climate Fluvial incision Yarlung Tsangpo Gorge
DOI10.1016/j.jseaes.2020.104337
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey
WOS KeywordEASTERN HIMALAYAN SYNTAXIS ; NAMCHE-BARWA SYNTAXIS ; LAKE-LEVEL CHANGES ; LATE PLEISTOCENE ; RIVER INCISION ; GRAIN-SIZE ; YELLOW-RIVER ; FLUVIAL INCISION ; DAMMED LAKE ; ROCK UPLIFT
Language英语
Funding ProjectNational Natural Science Foundation of China[41302280] ; National Natural Science Foundation of China[41472175] ; National Natural Science Foundation of China[41630104] ; China Geological Survey[DD20190358]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000536141200009
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/96687
Collection岩石圈演化国家重点实验室
Corresponding AuthorXu, Qinqin; Ji, Jianqing
Affiliation1.Chinese Acad Geol Sci, Inst Geol, MNR Key Lab Deep Earth Dynam, Beijing 100037, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
4.Berkeley Geochronol Ctr, Berkeley, CA 94709 USA
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xu, Qinqin,Ji, Jianqing,Zhong, Dalai,et al. Post-glacial entrenchment and knickpoint migration of the Yarlung Tsangpo Gorge, southeastern Tibetan Plateau[J]. JOURNAL OF ASIAN EARTH SCIENCES,2020,195:23.
APA Xu, Qinqin.,Ji, Jianqing.,Zhong, Dalai.,Hu, Yan.,Deino, Alan.,...&Sun, Dongxia.(2020).Post-glacial entrenchment and knickpoint migration of the Yarlung Tsangpo Gorge, southeastern Tibetan Plateau.JOURNAL OF ASIAN EARTH SCIENCES,195,23.
MLA Xu, Qinqin,et al."Post-glacial entrenchment and knickpoint migration of the Yarlung Tsangpo Gorge, southeastern Tibetan Plateau".JOURNAL OF ASIAN EARTH SCIENCES 195(2020):23.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xu, Qinqin]'s Articles
[Ji, Jianqing]'s Articles
[Zhong, Dalai]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, Qinqin]'s Articles
[Ji, Jianqing]'s Articles
[Zhong, Dalai]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, Qinqin]'s Articles
[Ji, Jianqing]'s Articles
[Zhong, Dalai]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.