Athabasca Glacier, Canada – a field example of subglacial ice and till erosion?

Hart, Jane K. (2006) Athabasca Glacier, Canada – a field example of subglacial ice and till erosion? Earth Surface Processes and Landforms, 31, (1), 65-80. (doi:10.1002/esp.1233).


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The Athabasca Glacier, resting on a rigid bed, provides an excellent example of subglacial
ice and till erosion. The presence of a thin mobile till layer is shown by the presence of flutes,
saturated till layer, push moraines and ploughed boulders. Cross-cutting striations, v-shaped
striations and reversed stoss-and-lee clasts are indicative of clasts rotating within this layer.
As the till moves it erodes the bedrock and clasts within it. A combination of erosion by ice
and till produces stoss-and-lee-clasts and generates striations on flutes and embedded clasts,
as well as eroding the bedrock into a continuum of smoothed, rounded and streamlined forms.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1002/esp.1233
ISSNs: 0197-9337 (print)
Related URLs:
Keywords: glacial erosion, subglacial processes, flutes, stoss-and-lee clasts
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
G Geography. Anthropology. Recreation > GE Environmental Sciences
G Geography. Anthropology. Recreation > GB Physical geography
Divisions : University Structure - Pre August 2011 > School of Geography > Environmental Processes and Change
ePrint ID: 55420
Accepted Date and Publication Date:
Date Deposited: 01 Aug 2008
Last Modified: 31 Mar 2016 12:35

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