Photoglossary

Shear zone

A zone of severe deformation, especially where a fast-flowing ice stream (q.v.) moves past relatively slow-moving ice. The deformation is characterised especially by intense crevassing.

Shear zones (arrowed) at the margins of Chaos Glacier, an ice stream emanating from the East Antarctic Ice Sheet, seen in the background. Photo M. J. Hambrey, 1994.

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