Abstract
Detailed studies of the glacial morphology and raised shore features along the coastal part of the Torngat Mountains permit an appraisal of the late-glacial and postglacial emergence of the area in association with the final retreat of the last ice sheet. Three specific strandlines are identified and found to tilt clown NNE; these are in turn truncated by a fourth, younger, horizontal strandline, about 15 m above present sea level. lsobases are drawn for the sea levels represented by two of the strandlines, and the map is the first attempt to show isobases for Northern Canada from essentially contemporaneous shore features . Retreat and readvance phases of the outlet glaciers from the continental ice sheet to the west are identified, and the strandlines have provided a tool by which isolated moraines could be correlated. Finally, a late-glacial chronology of the area is presented, which is, however, mainly a relative one. The only absolu te date is provided by a radiocarbon-dating of 9000 ± 200 years t for shells found at 29 m above present sea level. Theoretical and practical studies by Scandinavian workers in this specialized field of physical geography are discussed in terms of their application to similar problems in Canada, and field and laboratory techniques that provide a basis for the present study are described.
Published Version
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