Wednesday, November 26, 2008

Did You Know.......

Marbled Icebergs
Normally an iceberg appears White as a result of the tiny bubbles trapped within which scatter light in every direction. Blue stripes are created when a crevice in the ice sheet fills up with meltwater 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 lines are caused by sediment, picked up when the ice sheet grinds downhill towards the sea
So there is nothing very strange about those colored stripes except the fact that it's an incredibly rare coincidence that all those phenomenon have occurred in a relatively small piece of ice
Another striped iceberg with a striking diagonal blue line through it, which towered about 30 meters above the ocean surface, was spotted a few days later

Another unusual ice formation

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