CGRG Bibliography of Canadian Geomorphology
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Author : Bell, J.S.; and Eisbacher, G.H.
Date : 1995
Title : Stress orientation indicators (neotectonic, plucking fractures) in bedrock of glacier forefields, southeastern Cordillera, western Canada
Publication : Current Research 1995-B, Geological Survey of Canada
Issue :
Page(s) : 151-159
Abstract
Polished surfaces of glacier forefields in the southeastern Canadian cordillera display plucking fractures that are distinctly oblique to glacial striae. They commonly show preferred orientation in each forefield, and formed by basal glacier shearing and opening of extension fractures. We interpret these incipient fractures as signals of stress release during downwasting of glaciers and suggest that they are oriented parallel to SHmax.
Bibliography of Canadian Geomorphology