CGRG Bibliography of Canadian Geomorphology
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Author : Barrie, J.V.; Lewis, C.F.M.; Fader, G.B.; and King, L.H.
Date : 1984
Title : Seabed processes on the northeastern Grand Banks of Newfoundland; modern reworking of relict sediments.
Publication : Marine Geology
Issue : 57(1-4):
Page(s) : 209-227
Abstract
On the northeastern edge of the Grand Banks of Newfoundland, between 140 and 70 m depth, a thin Holocene sediment veneer unconformably overlies Tertiary siltstones and sandstones. These surficial sediments show a depth-controlled facies distribution. Below 90 m the facies range from continuous fine sand, through lag gravel and sand ribbons with arcuate sand waves and megaripples normal to the axis of the ribbons. Above 90 m depth alternating sand ridges up to 3 m in height and lag gravels occur. Megaripples and arcuate sand waves (400 m wave length) with megaripples on their stoss side are developed on the terrace. The regional geology suggests that many of the surface sediments were inherited from Pleistocene deposits subsequently reworked in coastal environments by an early Holocene transgression.
Bibliography of Canadian Geomorphology