CGRG Bibliography of Canadian Geomorphology
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Author : Forbes, D.L.; and Frobel, D.
Date : 1985
Title : Coastal erosion and sedimentation in the Canadian Beaufort Sea
Publication : Current Research, Geological Survey of Canada, Paper
Issue : 85-1B:
Page(s) : 69-80
Abstract
Sediments are supplied to the Beaufort Sea coast primarily from river and cliff sources. Mackenzie Delta is the major depositional feature, but has a predominantly erosional outer shoreline, despite high sediment supply and locally wide mudflats revealing sediment sink locations. Other features include cliffs, breached lake embayments, flooded tundra flats, lagoons, estuaries, deltas, beaches and barriers. Coastal surveys during 1984 included extensive oblique aerial video coverage, 22 beach profiles at 8 sites, sediment sampling, and 98 measurements of cliff recession at 11 sites. Beach deposits range from cliff-top gravels (up to 6.0 m above mean sea level) and gravel barriers (up to 2.2 m) to wide sandy spits and barrier islands with crest elevations as low as 0.4 m. Driftwood deposits occur as high as 6.0 m. Observed rates of cliff recession show high spatial and temporal variability, with 5-year means as high as 13 m/a.
Bibliography of Canadian Geomorphology