CGRG Bibliography of Canadian Geomorphology
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Author : Aylsworth, J.M.; and Kettles, M.I.
Date : 2001.
Title : Distribution of peatlands.
Publication : The Physical Environment of the Mackenzie Valley: a Baseline for the Assessment of Environmental Change, Edited by: L.D. Dyke and G.R. Brooks. Geological Survey of Canada, Bulletin
Issue : 547:
Page(s) : 49-55.
Abstract
The Mackenzie valley is characterized by vast peatlands dominated by two classes, bog and fen; the former is generally frozen and ground ice is common, the latter is unfrozen. Large peatlands are associated with broad featureless glaciolacustrine or till plains while smaller ones occur in low-lying areas between till or eolian ridges. Based on the compilation map, approximately 27 600 km2 of bog and 10 000 km2 of fen are estimated to occur in the Mackenzie valley. Although fens comprise only about 27% of the peatlands of the region as a whole, the proportion of fen to bog increases greatly in some areas. For example, close to Fort Simpson the ratio of fen to bog is 63:37. Peat thickness, based on information from the 'Mackenzie Geotechnical Borehole Database', increases towards the south.
Bibliography of Canadian Geomorphology