Ice aprons are thin accumulations of snow and ice commonly lying on relatively steep mountain sides. Ice fringes are similar ice and snow accumulations occupying small depressions along coasts. Glacierets are referred to as thin patches of ice occupying terrain depressions formed by snow drifting and avalanching. Glacierets have been called fall glaciers or regenerated glaciers where they exist below the ELA as a result of ice avalanches from overlying ice falls. Niche glaciers are controlled by a niche or rock bench in a mountain or valley side. Niche glaciers and ice aprons are different from snow patches because they move as a result of internal deformation and/ or basal sliding.
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