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Flushing submarine canyons

Author

Listed:
  • Miquel Canals

    (University of Barcelona)

  • Pere Puig

    (Marine Sciences Institute, CSIC)

  • Xavier Durrieu de Madron

    (CEFREM, UMR 5110 CNRS-University of Perpignan)

  • Serge Heussner

    (CEFREM, UMR 5110 CNRS-University of Perpignan)

  • Albert Palanques

    (Marine Sciences Institute, CSIC)

  • Joan Fabres

    (University of Barcelona
    Stony Brook University)

Abstract

Off the shelf Submarine canyons — steep-sided valleys cut into the continental slope — funnel flows of water and sediment from shallow coastal regions to the deep ocean. It is thought that most of these flows are initiated by sediment failure or river floods. New observations from the Gulf of Lions (or Golfe du Lion) off the French coast near Marseille show that they are also triggered by 'dense shelf water cascading', a relatively common type of current in which cold, dense water flows off the continental shelf. This means that the transport of sediment and organic material to the deep ocean may be more significant than previously believed. Any changes in the amount of dense shelf water cascading caused by future climate change may have important implications for nutrient supply to deep ocean ecosystems, as well as for carbon storage in the deep ocean.

Suggested Citation

  • Miquel Canals & Pere Puig & Xavier Durrieu de Madron & Serge Heussner & Albert Palanques & Joan Fabres, 2006. "Flushing submarine canyons," Nature, Nature, vol. 444(7117), pages 354-357, November.
    • Handle: RePEc:nat:nature:v:444:y:2006:i:7117:d:10.1038_nature05271
    DOI: 10.1038/nature05271
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    Cited by:

    1. M. S. Heijnen & F. Mienis & A. R. Gates & B. J. Bett & R. A. Hall & J. Hunt & I. A. Kane & C. Pebody & V. A. I. Huvenne & E. L. Soutter & M. A. Clare, 2022. "Challenging the highstand-dormant paradigm for land-detached submarine canyons," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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