The Physical Environment

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crevasse



Royal Society fiord Baffin
Click image to enlarge

Two glaciers with different flow rates in the Royal Society Fiord, Baffin Island, Canada. The one on the left is flowing at a faster rate, thus prevent the smooth plastic flow exhibited by the surface of the glacier on the right. Crevasses have formed in the faster flowing glacier on the left. 

Source: Geological Survey of Canada
Used with permission

 

A crevasse is a large crack in the glacier formed by differential flow rate.

 

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Last Revised September 26, 2006