Channels and gullies on the continental slope seaward of a cross-shelf trough, Labrador margin, eastern Canada
Geological Society Memoir
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Dowdeswell, J., Dowdeswell, E., Todd, B., Saint-Ange, F., & Piper, D. (2016). Channels and gullies on the continental slope seaward of a cross-shelf trough, Labrador margin, eastern Canada. Geological Society Memoir, 46 (1), 385-386. https://doi.org/10.1144/M46.161
The Labrador Shelf is characterized by several cross-shelf troughs separated by intervening shallower banks. The troughs were probably occupied by fast-flowing ice streams in the Late Pleistocene. Hopedale Saddle trough has a long Quaternary history of till progradation at the shelf edge, and the modern continental slope developed over a major 0.3 Ma shelf-edge failure complex. The upper slope exhibits a series of relatively narrow and deep gullies, whereas the mid-slope contains wider and shallower channels that are locally anastomosing (Fig. 1a). The erosional submarine landforms on the slope are likely to be linked to the delivery of dense sediment-rich meltwater to the shelf edge from a full-glacial ice stream (Piper et al. 2012).
External DOI: https://doi.org/10.1144/M46.161
This record's URL: https://www.repository.cam.ac.uk/handle/1810/254369