glaciers

regenerated glacier

a glacier that is reconstructed or reconstituted out of other glacier material; usually formed by seracs falling from a hanging glacier then re-adhering; also called reconstituted or reconstructed glacier, or glacier remainie.
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regelation

motion of an object through ice by melting and freezing that is caused by pressure differences; this process allows a glacier to slide past small obstacles on its bed.
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red algae

algae common on temperate glaciers and perennial snow; its red color sometimes prompts people to call it watermelon snow.
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reconstructed glacier

a glacier that is reconstructed or reconstituted out of other glacier material; usually formed by seracs falling from a hanging glacier then re-adhering; also called reconstituted glacier, regenerated glacier, or glacier remainie.
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reconstituted glacier

a glacier that is reconstructed or reconstituted out of other glacier material; usually formed by seracs falling from a hanging glacier then re-adhering; also called reconstructed glacier, regenerated glacier, or glacier remainie.
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randkluft

a fissure that separates a moving glacier from its headwall rock; like a bergschrund.
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radius-dependent metamorphism

snow metamorphism that occurs when there are large differences in convex and concave portions of a crystal.
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push moraine

moraine built out ahead of an advancing glacier.
The Columbia Glacier surged (advanced rapidly) earlier this century, part of it flowing into a forest. The push moraine in this photograph from 1914 shows Columbia Glacier literally pushing up trees and dirt as it advanced. (Photo courtesy of D.K. Handy, archived at the World Data Center for...
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pressure melting

melting that occurs in ice at temperatures colder than normal melting temperature because of added pressure.

pothole

a nearly vertical channel in ice that is formed by flowing water; usually found after a relatively flat section of glacier in a region of transverse crevasses; also called a moulin.
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