glaciers - Amazing Ice Amazing Glaciers and the Glaciers...

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Amazing Ice: Amazing Ice: Glaciers and the Glaciers and the Ice Ages Ice Ages
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Streams or sheets of recrystallized ice that survive through summer to last from one year to next. Glaciers : What are they?
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Also includes snow, water, rock and sediment. Moves under influence of gravity. At least 100 ft thick. Glaciers : What are they?
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They’re found where: a) it’s cold all year long b) there’s adequate snowfall Glaciers : Where are they ?
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Glaciers : Where are they? Antarctica = 94% of all land-based ice Greenland = 6% All others << 1%
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Firn Firn ~ sedimentary rock Compacted granular ice Glacial ice Glacial ice ~ metamorphic rock Snow Snow ~ sediment Glaciers : What are they made of? 250 m 2000 m
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Glaciers : How do they form ? More snow and ice accumulate in winter than melts in summer.
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Glaciers : How do they form ? + glacier advances - glacier retreats
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Glacier National Park, Montana - Glacier National Park, Montana - Documenting Glacial Retreat and Loss Documenting Glacial Retreat and Loss As climate warms and drought becomes more persistent, climate models predict that by 2030 GNP will have lost all of its glaciers.
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This note was uploaded on 12/01/2011 for the course SCIENCE 460:100 taught by Professor Staff during the Fall '10 term at Rutgers.

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glaciers - Amazing Ice Amazing Glaciers and the Glaciers...

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