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Identification of Younger Dryas outburst flood path from Lake Agassiz to the Arctic Ocean

Author

Listed:
  • Julian B. Murton

    (Permafrost Laboratory, University of Sussex)

  • Mark D. Bateman

    (Sheffield Centre for International Drylands Research, Winter Street, University of Sheffield)

  • Scott R. Dallimore

    (Geological Survey of Canada, 9860 West Saanich Road, Sidney, British Columbia V8L 4B2, Canada)

  • James T. Teller

    (University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada)

  • Zhirong Yang

    (University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada)

Abstract

Younger Dryas flood tracked Our current concepts of abrupt climate change are strongly influenced by compelling palaeoclimate evidence for events like the Younger Dryas, in which massive changes in climate occurred essentially instantaneously. It is generally thought that an injection of freshwater from the retreating Laurentide Ice Sheet altered the Atlantic Meridional Overturning Circulation and triggered the Younger Dryas, but convincing geological evidence to support this theory has, to date, proven elusive. Now Julian Murton and colleagues at last identify a major flood event that is chronologically consistent with the Younger Dryas. Gravels found above an erosion surface in north-west Canada are consistent with the major flood path running through the Mackenzie River into the Arctic Ocean, rather than south along the Mississippi River or east through the Great Lakes.

Suggested Citation

  • Julian B. Murton & Mark D. Bateman & Scott R. Dallimore & James T. Teller & Zhirong Yang, 2010. "Identification of Younger Dryas outburst flood path from Lake Agassiz to the Arctic Ocean," Nature, Nature, vol. 464(7289), pages 740-743, April.
    • Handle: RePEc:nat:nature:v:464:y:2010:i:7289:d:10.1038_nature08954
    DOI: 10.1038/nature08954
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    Cited by:

    1. Lars Max & Dirk Nürnberg & Cristiano M. Chiessi & Marlene M. Lenz & Stefan Mulitza, 2022. "Subsurface ocean warming preceded Heinrich Events," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Junjie Wu & Gesine Mollenhauer & Ruediger Stein & Peter Köhler & Jens Hefter & Kirsten Fahl & Hendrik Grotheer & Bingbing Wei & Seung-Il Nam, 2022. "Deglacial release of petrogenic and permafrost carbon from the Canadian Arctic impacting the carbon cycle," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    3. R. Macdonald & Z. Kuzyk & S. Johannessen, 2015. "It is not just about the ice: a geochemical perspective on the changing Arctic Ocean," Journal of Environmental Studies and Sciences, Springer;Association of Environmental Studies and Sciences, vol. 5(3), pages 288-301, September.

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