Wednesday, December 23, 2009
Iceberg Stripes
Icebergs in the
Antarctic
area sometimes have stripes, formed by layers of snow that react to different conditions.
Blue stripes are often created when a crevice in the ice sheet fills up with melt water and freezes so quickly that no bubbles form.
When an iceberg falls into the sea, a layer of salty seawater can freeze to the underside. If this is rich in algae, it can form a green stripe.
Brown, black and yellow lines are caused by sediment, picked up when the ice sheet grinds downhill towards the sea.
1 comment:
Melanie's Randomness
said...
Woa this is beautiful!! I didn't know this happened. I like it.
December 23, 2009 at 5:24 PM
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1 comment:
Woa this is beautiful!! I didn't know this happened. I like it.
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