CGRG Bibliography of Canadian Geomorphology
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Author : Campbell, D.C.
Date : 2005.
Title : Major Quaternary mass-transport deposits in southern Orphan Basin, offshore Newfoundland and Labrador.
Publication : Geological Survey of Canada, Current Research
Issue : 2005-D3.
Page(s) : 10 p.
Abstract
Orphan Basin is a deep-water basin off the northeast coast of Newfoundland that is currently an area of active hydrocarbon exploration. The Geological Survey of Canada has conducted regional high-resolution seismic-reflection and seabed sampling surveys during 2003 - 2004 to improve understanding of the Quaternary geology and identify potential geohazards. Evidence of past instability includes thick, stacked mass-transport deposits on the basin floor and seabed failure scars on the continental slope. Most of the mass-transport deposition through the Quaternary occurred in the northern part of the study area, although there has been a shift towards the northwest during the Pleistocene. Recurrence of large-scale seabed failure through the Quaternary is on the order of 75 000 - 100 000 years, but it is not clear if there is a correlation with global sea-level change and glaciations or if the distribution is random.
Bibliography of Canadian Geomorphology