气候变化领域集成服务门户(CCPortal): Middle–Late Pleistocene landscape evolution of the Dover Strait inferred from buried and submerged erosional landforms

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DOI	10.1016/j.quascirev.2018.11.011
	Middle–Late Pleistocene landscape evolution of the Dover Strait inferred from buried and submerged erosional landforms
	García-Moreno D.; Gupta S.; Collier J.S.; Oggioni F.; Vanneste K.; Trentesaux A.; Verbeeck K.; Versteeg W.; Jomard H.; Camelbeeck T.; De Batist M.
发表日期	2019
ISSN	0277-3791
起始页码	209
结束页码	232
卷号	203
英文摘要	Prominent landforms, either buried or preserved at the seafloor, provide important constraints on the processes that led to the opening and present-day configuration of the Dover Strait. Here, we extend previous investigations on two distinct landform features, the Fosse Dangeard and Lobourg Channel, to better understand the poly-phase history of their formation and inferences for the opening and Pleistocene evolution of the Dover Strait. The Fosse Dangeard consist of several interconnected palaeo-depressions. Their morphology and spatial distribution are interpreted to be the result of plunge-pool erosion generated at the base of north-eastward retreating waterfalls. Their infills comprise internal erosional surfaces that provide evidence for the occurrence of several erosional episodes following their initial incision. The Lobourg Channel comprises various sets of erosional features, attesting to the occurrence of several phases of intense fluvial and/or flood erosion. The last one of these carved a prominent inner channel, which truncates the uppermost infill of the Fosse Dangeard. The morphology of the Lobourg inner channel and the erosional features associated with its incision strongly resemble landforms found in megaflood-eroded terrains, indicating that this valley was likely eroded by one or several megafloods. Our study therefore corroborates the existence of waterfalls in the Dover Strait at least once during the Pleistocene Epoch. It also provides evidence of the occurrence of multiple episodes of fluvial and flood erosion, including megafloods. Finally, this study allows us to establish a relative chronology of the erosional/depositional episodes that resulted in the present-day morphology of this region. © 2018 Elsevier Ltd
英文关键词	Geomorphology; Megaflood; Palaeogeography; Pleistocene; Western Europe
语种	英语
scopus关键词	Floods; Geomorphology; Landforms; Morphology; Landscape evolutions; Late Pleistocene; Megaflood; Palaeogeography; Pleistocene; Pleistocene epoch; Plunge pool; Western Europe; Erosion; flood; geomorphology; infill; landform; landscape evolution; paleogeography; Pleistocene; seafloor; spatial distribution; waterfall; Dover Strait; English Channel; Western Europe
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/152067
作者单位	Department of Geology, Ghent University, Campus Sterre, building S8, Krijgslaan 281, Gent, B-9000, Belgium; Royal Observatory of Belgium, Avenue Circulaire 3, Uccle, Brussels, B-1180, Belgium; Department of Earth Science and Engineering, Imperial College London, Prince Consort Road, London, SW7 2BP, United Kingdom; University of Lille 1, UMR 8187 LOG, Laboratoire d'Océanologie et de Géosciences, Villeneuve-d'Ascq, F-59650, France; VLaams Instituut voor de Zee, InnovOcean site, Wandelaarkaai 7, Oostende, B-8400, Belgium; Institut de Radioprotection et de Sûreté Nucléaire, Avenue de la Division Leclerc 31, Fontenay-aux-Roses, F-92260, France
推荐引用方式 GB/T 7714	García-Moreno D.,Gupta S.,Collier J.S.,等. Middle–Late Pleistocene landscape evolution of the Dover Strait inferred from buried and submerged erosional landforms[J],2019,203.
APA	García-Moreno D..,Gupta S..,Collier J.S..,Oggioni F..,Vanneste K..,...&De Batist M..(2019).Middle–Late Pleistocene landscape evolution of the Dover Strait inferred from buried and submerged erosional landforms.Quaternary Science Reviews,203.
MLA	García-Moreno D.,et al."Middle–Late Pleistocene landscape evolution of the Dover Strait inferred from buried and submerged erosional landforms".Quaternary Science Reviews 203(2019).