CGRG Bibliography of Canadian Geomorphology
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Author : Bayrock, L.A.
Date : 1965
Title : Incomplete Continental glacial record of Alberta, Canada
Publication : Proceedings 7th International Congress, International Quaternary Research, Boulder, Colorado. In: Quaternary Geology and Climate, National Academy of Science, Washington, D.C., Publication
Issue : 1701:
Page(s) : 99-103
Abstract
The Saskatchewan Gravels are deposits of sand and gravel in Alberta that underlie clearly recognizable glacial deposits and overlie Cretaceous and Paleocene shale and sandstone. That the gravels antedate continental glaciation of the province is supported by the fact that they do not contain any material from the Canadian Shield, unlike all other continental glacial deposits in western Canada and United States. The Saskatchewan Gravels occur as valley fills of rivers that may be correlated with Alden's (1932) bench No. 3. Recent fossil evidence suggests that these deposits are of late Pleistocene age: it seems possible that they may have been deposited as recently as early Wisconsin but before the Wisconsin ice had spread into this region. Because the Saskatchewan Gravels occur throughout Alberta and parts of Saskatchewan, it is evident that these areas were not glaciated during the earlier glaciations. It is suggested that only the Wisconsin ice sheets covered this region, and that during all previous glaciations the terrain from Montana to the Arctic ocean along the Rocky Mountains was free of ice.
Bibliography of Canadian Geomorphology