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
No comments:
Post a Comment