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Submarine gullies and an axial channel in glacier-influenced Courtauld Fjord, East Greenland

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posted on 06.03.2015, 12:12 authored by Jeffrey EvansJeffrey Evans, Julian A. Dowdeswell
Submarine gullies have been observed widely in swath-bathymetric imagery of the shelf edge and upper slope on high-latitude margins (e.g. Noormets et al. 2009; Gales et al. 2013), but less frequently in glacier-influenced fjord settings. Gullies vary in distribution, morphology and dimensions depending on formation mechanisms; these include submarine mass wasting, subglacially or proglacially derived turbid underflows and dense bottom-water currents linked to brine rejection during sea-ice formation (e.g. Noormets et al. 2009). Since recession of the Greenland Ice Sheet through the Kangerlugssuaq Fjord system, at 68ºN in East Greenland, after the Last Glacial Maximum (Dowdeswell et al. 2010), significant seafloor erosion on the flanks of the inner tributary fjords has taken place to produce a series of submarine gullies and an axial channel (Fig. 1a-e).

History

School

  • Social Sciences

Department

  • Geography and Environment

Published in

Geological Society, London

Volume

Memoir

Issue

1-2

Pages

1 - 4 (4)

Citation

EVANS, J. and DOWDESWELL, J.A., 2015. Submarine gullies and an axial channel in glacier-influenced Courtauld Fjord, East Greenland. IN: Dowdeswell, J.A. et al (eds). Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient. London: Geological Society, pp.103-4.

Publisher

© Geological Society of London

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

This paper was accepted for publication in Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient. 2015 http://dx.doi.org/10.1144/M46.22 © Geological Society of London 2015

ISBN

9781786202680

Book series

GSL Memoirs; 46

Language

en