标题:
Amazing striped iceberg
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作者:
中为
时间:
2008-9-13 18:25
标题:
Amazing striped iceberg
<table cellspacing="0" class="t_table" style="width:98%" bgcolor="white"><tr><td><strong><strong>奇特有??的巨大冰??片 </strong></strong>
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</strong><strong><strong>Amazing striped icebergs</strong></strong>
</td></tr></table><i>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 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, black and yellow lines are caused by sediment, picked up when the ice sheet grinds downhill towards the sea...</i>
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