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Glacier boulder
This landscape in Nunavut, Canada, shows the impact of glacier erosion. There is very little on the bare granite rock surface, though there is a large boulder that would have been carried by a glacier and then deposited.
Photograph: Lynda Dredge of the Geological Survey of Canada
Reproduced with the permission of the Minister of Public Works and Government Services Canada, 2007 and Courtesy of Natural Resources Canada, Geological Survey of Canada

