CGRG Bibliography of Canadian Geomorphology
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Author : Beaney, C.; and Brennand, T.
Date : 2001.
Title : Drumlins of the Central Interior Plateau, British Columbia: shape, size and distribution.
Publication : Canadian Quaternary Association/ Association canadienne pour l'etude du Quaternaire, Annual Meeting 2001. Whitehorse, Yukon Territory, August 20 – 24, 2001.
Issue :
Page(s) :
Abstract
Drumlins are a common landform associated with continental glaciation although their mode of formation remains enigmatic. Previous research in the central Interior Plateau, British Columbia has identified a large drumlin field to the west of the Fraser River in the Quesnel region assumed to have formed during the last (Fraser) glaciation (circa 20kaBP). Drumlins have been used to infer ice flow directions in the Cordilleran Ice Sheet. This paper presents the results of digital elevation model visualization, aerial photograph analysis and preliminary field work in the Quesnel region. A complex field of streamlined landforms, oriented approximately south to north, on the Fraser Plateau west of Quesnel is revealed. Morphologies include classic "inverted spoon" drumlins, spindle forms, crag and tail features and megaflutings. Drumlins exhibit a variety of sizes ranging from streamlined hills and bedrock knobs to smaller superimposed forms. Commonly these streamlined features are several hundred metres to kilometres in length. They occur in a variety of substrate materials and are arranged so that drumlins with similar morphologies are found in similar areas. Examples of these different observed drumlin types will be presented to highlight the inherent morphological variability within this drumlin field. Formative hypotheses for drumlin formation consistent with the morphology-distribution data will be discussed.
Bibliography of Canadian Geomorphology