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18 Cards in this Set
- Front
- Back
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the cheif source of glacial ice is
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snow
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zone of accumulation
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when snowfall is greater than melting & sublimation
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glaciers curently cover
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only 11% of land area
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glaciers create more
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pressure than water
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glaciers are the most powerful
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erosional force
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glacers erode by
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scraping and plucking materials off the ground
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glaciers are
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masses of fresh water formed on land
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the cheif source of glacial ice is
|
snow
|
|
|
zone of accumulation
|
when snowfall is greater than melting & sublimation
|
|
|
glaciers curently cover
|
only 11% of land area
|
|
|
glaciers create more
|
pressure than water
|
|
|
glaciers are the most powerful
|
erosional force
|
|
|
glacers erode by
|
scraping and plucking materials off the ground
|
|
|
glaciers are
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masses of fresh water formed on land
|
|
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ice bergs
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large chunks of glaciers
can be up to 1,000 ft thick |
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glaciers are collections of
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till
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Morains
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the tem used to describe collections of till that create mounds or ridges upon glaciers
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glaciers can move
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from 200 feet to as little as centemeters daily
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