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Discovery of relict subglacial lakes and their geometry and mechanism of drainage

Author

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  • Stephen J. Livingstone

    (Sheffield University, Winter Street, Sheffield S10 2TN, UK)

  • Daniel J. Utting

    (Alberta Geological Survey)

  • Alastair Ruffell

    (School of Geography, Archaeology and Palaeoecology, Queen’s University Belfast)

  • Chris D. Clark

    (Sheffield University, Winter Street, Sheffield S10 2TN, UK)

  • Steven Pawley

    (Alberta Geological Survey)

  • Nigel Atkinson

    (Alberta Geological Survey)

  • Andrew C. Fowler

    (Mathematics Applications Consortium for Science and Industry (MACSI), University of Limerick
    Mathematical Institute, University of Oxford)

Abstract

Recent proxy measurements reveal that subglacial lakes beneath modern ice sheets periodically store and release large volumes of water, providing an important but poorly understood influence on contemporary ice dynamics and mass balance. This is because direct observations of how lake drainage initiates and proceeds are lacking. Here we present physical evidence of the mechanism and geometry of lake drainage from the discovery of relict subglacial lakes formed during the last glaciation in Canada. These palaeo-subglacial lakes comprised shallow (

Suggested Citation

  • Stephen J. Livingstone & Daniel J. Utting & Alastair Ruffell & Chris D. Clark & Steven Pawley & Nigel Atkinson & Andrew C. Fowler, 2016. "Discovery of relict subglacial lakes and their geometry and mechanism of drainage," Nature Communications, Nature, vol. 7(1), pages 1-9, September.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11767
    DOI: 10.1038/ncomms11767
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