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The establishment and influence of Baimakou paleo-dam in an upstream reach of the Yangtze River, southeastern margin of the Tibetan Plateau
Liu, Weiming1; Hu, Kaiheng1; Carling, Paul A.2; Lai, Zhongping3; Cheng, Ting4; Xu, Yali1
2018
Source PublicationGEOMORPHOLOGY
ISSN0169-555X
EISSN1872-695X
Volume321Pages:167-173
SubtypeArticle
AbstractLandslide damming is an important disturbance factor in the river evolution of mountain belts and may control river morphology at variable timescales. This temporal aspect is mostly discussed in terms of the spatial relationships between the dams and river longitudinal profiles within any given region. Largely lacking are detailed studies of the geomorphic response for individual dams. Here we present field evidence and 24 optically stimulated luminescence (OSL) ages that show the history of a landslide dam in an upstream reach of Yangtze River at the southeastern margin of the Tibetan Plateau and its influence on river evolution. The distribution of lacustrine ages suggests that there was only one long-term damming event, induced by landslide blocking the river. The dammed lake formed at 12.1 ka, and disappeared at 7.5 ka. The estimated dam height was 120 m, lake area was 96 km(2), and lake volume was 7.5 km(3). In addition, the grain size and distribution of lacustrine deposits indicate the dam failed cataclysmically when the lake finally drained. Today, the river long profile upstream of the dam site remains lower and the channel is wider in contrast to the downstream reach. Consequently, the former dam still influences channel morphology. Our study shows that the interaction of landslide dams with the rivers in the southeastern Tibetan Plateau may impeded valley incision and headward erosion in those cases where damming continued over periods of several thousand years. Crown Copyright (C) 2018 Published by Elsevier B.V. All rights reserved.
KeywordLandslide dam River long profile Luminescence dating Yangtze River
DOI10.1016/j.geomorph.2018.08.028
Indexed BySCI
WOS KeywordUPPER JINSHA RIVER ; EASTERN MARGIN ; LAKE DEPOSITS ; NEW-ZEALAND ; INCISION ; LANDSCAPE ; CHRONOLOGY ; TECTONICS ; CATCHMENT ; FAILURE
Language英语
Quartile2区
Funding ProjectNational Key Basic Research Program of China[2015CB452704] ; National Natural Science Foundation of China[41661144028] ; National Natural Science Foundation of China[41771023] ; Self-support Project from the Institute of Mountain Hazards and Environment, CAS[SDS-QN-1602] ; 135 Strategic Program from the Institute of Mountain Hazards and Environment, CAS[SDS-135-1701]
TOP
WOS Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000447475900013
Funding OrganizationNational Key Basic Research Program of China ; National Natural Science Foundation of China ; Self-support Project from the Institute of Mountain Hazards and Environment, CAS ; 135 Strategic Program from the Institute of Mountain Hazards and Environment, CAS
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/24044
Collection山地灾害与地表过程重点实验室
Corresponding AuthorLiu, Weiming; Hu, Kaiheng
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Sichuan, Peoples R China
2.Univ Southampton, Geog & Environm, Southampton SO17 1BJ, Hants, England
3.Shantou Univ, Inst Marine Sci, Shantou 515063, Peoples R China
4.Lanzhou Univ, Coll Earth Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 73000, Gansu, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Liu, Weiming,Hu, Kaiheng,Carling, Paul A.,et al. The establishment and influence of Baimakou paleo-dam in an upstream reach of the Yangtze River, southeastern margin of the Tibetan Plateau[J]. GEOMORPHOLOGY,2018,321:167-173.
APA Liu, Weiming,Hu, Kaiheng,Carling, Paul A.,Lai, Zhongping,Cheng, Ting,&Xu, Yali.(2018).The establishment and influence of Baimakou paleo-dam in an upstream reach of the Yangtze River, southeastern margin of the Tibetan Plateau.GEOMORPHOLOGY,321,167-173.
MLA Liu, Weiming,et al."The establishment and influence of Baimakou paleo-dam in an upstream reach of the Yangtze River, southeastern margin of the Tibetan Plateau".GEOMORPHOLOGY 321(2018):167-173.
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