CGRG Bibliography of Canadian Geomorphology
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Author : Burgess, D.O.
Date : 1994
Title : Morphometric comparisons between rogen terrain and hummocky terrain
Publication : Unpublished M.Sc.thesis. University of Alberta. Edmonton
Issue :
Page(s) :
Abstract
Visual interpretation of the aerial photographs suggests that certain geomorphological similarities exist between the hummocky terrain of central Alberta, Canada and the Rogen terrain of the NorthwestTerritories, Canada. This study statistically compares the two landform types based on measures of depressional form shapes and ridge orientations. Three sample areas (H1, H2, and H3) were selected from the hummocky terrain study site for comparison with one sample area (ROG) selected from the Rogen terrain study site. Sample areas H1 and H2 were chosen as representative areas of hummocky terrain that were similar in appearance to the Rogen terrain. Sample area H3 was selected because it contained the typically random pattern normally associated with hummocky terrain. Four different shape index values were calculated for the depressional form shapes comprising each sample area. Statistical comparison between sample areas based on shape index values indicated that sample areas H1, H2, and ROG were significantly similar and sample areas H3 and ROG were significantly dissimilar. Orientation analysis indicated that the ridges of sample areas H1, H2, and ROG all exhibited a preferred trend, while the ridge orientations of sample area H3 were uniform. Significant similarities between the hummocky terrain and the Rogen terrain based on the dominant properties common to each land form indicate that a similar two-dimensional pattern is evident in both land forms, hence, similar geomorphological processes may have been responsible for both terrain types. Variability in the formation process would explain why only particular areas throughout the hummocky terrain exhibit patterns similar to the Rogen terrain and others do not (such as sample area H3). Comparision of depressional form measures and ridge orientation analysis indicates that the hummocky terrain of central Alberta and the Rogen terrain of the Northwest Territories appear to have a common or similar origin.
Bibliography of Canadian Geomorphology