CGRG Bibliography of Canadian Geomorphology
Search Results
Author : Gravenor, C.P.; and Meneley, W.A.
Date : 1958
Title : Glacial flutings in central and northern Alberta
Publication : American Journal of Science
Issue : 256:
Page(s) : 715-728
Abstract
An examination of vertical air photographs covering about 175,000 square miles of northern and central Alberta has revealed the presence of large fields of glacial flutings. The flutings show two dominant trends, one in a south to southwest direction and the other in a southeast direction. Although the majority of the flutings are formed in till, in northeastern Alberta the flutings are erosional in character and developed in Precambrian granite gneiss. Striae on the Precambrian flutings are roughly parallel to the ridges. Till fabric determinations made on the southeast flutings of the North Battleford, Saskatchewan district show that there is a marked change in fabric with depth in the ridges. Fluting development apparently bears little relationship to topography. It is believed that the flutings originated from alternating high and low pressure zones at the base of the ice.
Bibliography of Canadian Geomorphology