glaciers

cryoconite

A deposit of dust and soot, often bound by microbial mats, that is formed on melting glaciers and ice sheets. The deposits are often found in pothole-like pockets on the ice surface.

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glaciers

weathering

the processes of ablation and accumulation which gradually eliminate irregularities in an ice surface.
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glaciers
icebergs and ice shelves

weathered ice

glacier ice that has been exposed to sun or warm wind so that the boundaries between ice crystals are partly disintegrated.
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glaciers

wave ogives

ogives that show some vertical relief on a glacier; usually the dark bands are in the hollows and the light bands are in the ridges; form at the base of steep, narrow ice falls.
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glaciers

valley glacier

a mountain glacier whose flow is confined by valley walls.
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glaciers

tributary glacier

a small glacier that flows into a larger glacier.
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glaciers

tongue

a projection of the ice edge up to several km in length caused by wind and current; usually forms when a valley glacier moves very quickly into a lake or ocean.
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glaciers

tidewater glacier

mountain glacier that terminates in the ocean.
Holgate Glacier, Kenai Peninsula, Alaska
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glaciers

tide crack

the fissure at the line of junction between an immovable icefoot or ice wall and fast ice, the latter being subject to the rise and fall of the tide.
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icebergs and ice shelves
glaciers

thomson crystal

a large ice crystal found in deep, stagnant water-filled cavities of a glacier.
Topic: 
glaciers

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