CGRG Bibliography of Canadian Geomorphology
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Author : Bednarski, J.M.
Date : 2010.
Title : ~-Surficial geology, Louis Creek (west half), British Columbia.
Publication : Geological Survey of Canada, Open File
Issue : 6279.
Page(s) : 1:50,000 map.
Abstract
The Louis Creek (west half) is a rugged upland lying 1200 to 1800 m above sea level. The eastern half of the map area is underlain by Paleozoic volcanic, metamorphic and sedimentary rocks. The west is dominated by Mesozoic batholiths and Tertiary plateau lavas. Glacial till blankets most of the area, but till cover is thin on local uplands and bedrock outcrops are prevalent. Drumlins and flutings show that during the last glaciation the dominant ice flow was from the northwest in the western half of the map area. Nevertheless a former ice flow from the north dominates the eastern half of the area. This is part of the southward flow directed by the North Thompson River valley immediately to the east of the map area. Based on till provenance and mapping in adjacent areas, there was a gradual swing in flow direction as the Cordilleran Ice Sheet flowed in from the northeast and deflected south west flowing glaciers originating from the Cariboo Mountains east of the map area. Moraines and the orientation of meltwater channels indicate that deglaciation progressed to the northwest across the map area.
Bibliography of Canadian Geomorphology