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Crevasse fields
page 1
crevasse
thumb|right|upright=1.3|Transverse crevasses, Chugach State Park, Alaska A crevasse is a deep crack that forms in a glacier or ice sheet. Crevasses form as a result of the movement and resulting stress associated with the shear stress generated when two semi-rigid pieces above a plastic substrate have different rates of movement. The resulting intensity of the shear stress causes a breakage along the faces.