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Abstract
Late Quaternary separation of Britain from mainland Europe is considered to be a consequence of spillover of a large proglacial lake in the Southern North Sea basin. Lake spillover is inferred to have caused breaching of a rock ridge at the Dover Strait, although this hypothesis remains untested. Here we show that opening of the Strait involved at least two major episodes of erosion. Sub-bottom records reveal a remarkable set of sediment-infilled depressions that are deeply incised into bedrock that we interpret as giant plunge pools. These support a model of initial erosion of the Dover Strait by lake overspill, plunge pool erosion by waterfalls and subsequent dam breaching. Cross-cutting of these landforms by a prominent bedrock-eroded valley that is characterized by features associated with catastrophic flooding indicates final breaching of the Strait by high-magnitude flows. These events set-up conditions for island Britain during sea-level highstands and caused large-scale re-routing of NW European drainage.
Keywords
EUROPEAN ICE-SHEET, NORTH-SEA BASIN, EASTERN ENGLISH-CHANNEL, EXTREME FLOOD EVENTS, MIDDLE PLEISTOCENE, SYSTEM, RIVER, EVOLUTION, DISCHARGES, HOLOCENE

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Chicago
Gupta, Sanjeev, Jenny S Collier, David Garcia Moreno, Francesca Oggioni, Alain Trentesaux, Kris Vanneste, Marc De Batist, et al. 2017. “Two-stage Opening of the Dover Strait and the Origin of Island Britain.” Nature Communications 8.
APA
Gupta, Sanjeev, Collier, J. S., Garcia Moreno, D., Oggioni, F., Trentesaux, A., Vanneste, K., De Batist, M., et al. (2017). Two-stage opening of the Dover Strait and the origin of island Britain. NATURE COMMUNICATIONS, 8.
Vancouver
1.
Gupta S, Collier JS, Garcia Moreno D, Oggioni F, Trentesaux A, Vanneste K, et al. Two-stage opening of the Dover Strait and the origin of island Britain. NATURE COMMUNICATIONS. 2017;8.
MLA
Gupta, Sanjeev, Jenny S Collier, David Garcia Moreno, et al. “Two-stage Opening of the Dover Strait and the Origin of Island Britain.” NATURE COMMUNICATIONS 8 (2017): n. pag. Print.
@article{8517720,
  abstract     = {Late Quaternary separation of Britain from mainland Europe is considered to be a consequence of spillover of a large proglacial lake in the Southern North Sea basin. Lake spillover is inferred to have caused breaching of a rock ridge at the Dover Strait, although this hypothesis remains untested. Here we show that opening of the Strait involved at least two major episodes of erosion. Sub-bottom records reveal a remarkable set of sediment-infilled depressions that are deeply incised into bedrock that we interpret as giant plunge pools. These support a model of initial erosion of the Dover Strait by lake overspill, plunge pool erosion by waterfalls and subsequent dam breaching. Cross-cutting of these landforms by a prominent bedrock-eroded valley that is characterized by features associated with catastrophic flooding indicates final breaching of the Strait by high-magnitude flows. These events set-up conditions for island Britain during sea-level highstands and caused large-scale re-routing of NW European drainage.},
  articleno    = {15101},
  author       = {Gupta, Sanjeev and Collier, Jenny S and Garcia Moreno, David and Oggioni, Francesca and Trentesaux, Alain and Vanneste, Kris and De Batist, Marc and Camelbeeck, Thierry and Potter, Graeme and Van Vliet-Lano{\"e}, Brigitte and Arthur, John CR},
  issn         = {2041-1723},
  journal      = {NATURE COMMUNICATIONS},
  keyword      = {EUROPEAN ICE-SHEET,NORTH-SEA BASIN,EASTERN ENGLISH-CHANNEL,EXTREME FLOOD EVENTS,MIDDLE PLEISTOCENE,SYSTEM,RIVER,EVOLUTION,DISCHARGES,HOLOCENE},
  language     = {eng},
  pages        = {12},
  title        = {Two-stage opening of the Dover Strait and the origin of island Britain},
  url          = {http://dx.doi.org/10.1038/ncomms15101},
  volume       = {8},
  year         = {2017},
}

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