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Icebergs
in Lake
Michigan 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 lake, a layer of water
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 lake.
The
water froze the instant the wave broke through the
ice. That's
what it is like in Lake Michigan where it is the
coldest weather in
decades. Water freezes the instant
it comes in contact with
the air. The temperature of the
water is already some
degrees below freezing.
Just look at how the wave
froze in mid-air!!!
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