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a long, deep, narrow arm of the sea bounded by steep walls, generally formed by submergence of a glacially eroded valley
parallel grooves and scratches in bedrock that form as rocks are dragged along at the base of a glacier.
a section of a glacier that flows down a steep gradient, so that the ice fractures into numerous crevasses and towering ice pinnacles
a section of a glacier that flows down a steep gradient so that the ice fractures into numerous crevasses and towering ice pinnacles
one of a series of lakes, strung out like beads and connected by short streams and waterfalls, created by glacial erosion
the altitude on an alpine glacier about which there is permeable snow. the boundary between the zone of accumulation and the zone of aldation.
zone of ablation
the lower-altitude part of an alpine glacier where more snow melts in the summer than accumulates in winter.
zone of accumulation
the higher-altitude section of an alpine glacier where more snow falls in winter than melts in summer, and where snow accumulates from year to year
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