glacial surge

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The swift and dramatic movement of a glacier, associated with the growth of ice up-glacier to unstable proportions and with severe crevassing. Murray and Porter (2001, Quat. Int. 86) link the termination of the surge front on the Svalbard surging glacier Bakaninbreen to the boundary between warm ice and the cold-based snout, and propose that surging takes place by bed deformation and/or sliding in the warm based zone. See Russell et al. (2001) Glob. & Planet. Change 28, 1 on glacier surging as a control on the development of proglacial, fluvial landforms and deposits.

Subjects: Earth Sciences and Geography.

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