CGRG Bibliography of Canadian Geomorphology
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Author : Duk-Rodkin, A.
Date : 1993.
Title : Surficial geology mapping of the Mackenzie transportation corridor
Publication : Granular Resource Requirements for Proposed Mackenzie Valley Pipelines : technical papers and workshop proceedings. Prepared by R.J. Mahnic and T.J. Fujino. - [S.l.] : Stanley Associates Engineering,
Issue :
Page(s) : 7-9.
Abstract
The surficial geology mapping of the Mackenzie Valley Transportation Corridor was undertaken by the GSC in 1971-1973. Two A-Series maps cover the northern part of the Corridor, while the southern Corridor is covered by 11 maps. The maps include terrain evaluation for engineering purposes, sources of aggregate (sand and/or gravel), geomorphic processes, natural hazards (landslides), thickness of drift, and ground-ice content. The maps also include a comprehensive glacial history of the region that helps to determine problematic areas for engineering evaluation. Most of the Quaternary sediments in the Mackenzie Valley are of glacial origin. During advance and retreat of the Laurentide ice sheet, glaciofluvial sand and gravel were deposited on the glaciated surfaces. Particularly important sources of aggregate are former deltas built into glacial lakes. Glaciofluvial complexes, kames and eskers are mostly related to long periods of ice sheetretreat. Glaciofluvial channels are also excellent sources of gravel and sand. Former glacial lake sediments and some morainic sediments have high ice content, and thus are unsuitable for any type of construction.
Bibliography of Canadian Geomorphology