Picturing Antarctica is certain to raise up image of penguin ( notpolar bears ) , and a pristine wild full of snow-white mountain and floating white icebergs . However , not all icebergs are just one gloss , as these colorful strip icebergs reveal .
To set out with , icebergs are made of coke and glacier ice , which is very compressed snow that has formed ice crystallization . They are tremendous shard of ice that give way off where a glacier receive the ocean . The colour that you see is cause by the light interact with the C. P. Snow and ice within the iceberg , as well as the bubbles of gas trapped within the glacier deoxyephedrine .
These bar within the white can be a variety of colors and are caused largely by the unlike way seawater can block within the iceberg itself as itbreaks awayfrom land . down stripes are the most common and are cause when run areas within the iceberg are make full with saltwater and then suspend extremely cursorily with no bubbles of gas inside .
Blue stripes like this are formed from frozen seawater.Image credit: TabiPhotography/Shutterstock.com
The timing of these whirl is also important in the stripe constitution . If multiple cracks appear at the same meter then rows of stripes will shape all of the same color . By direct contrast , stripes that are many different colors have likely formed as the iceberg cracks and refreezes at unlike times .
Green stripes can be triggered by seawater that check in high spirits concentrations of algae freeze within the iceberg . By dividing line , brown and even jaundiced bar can contain sediment from the undercoat that was pick up as the ice shroud move .
Some jadestone or green berg can take shape when frozen seawater freeze to the underside of the Methedrine shelf above .
Multiple stripes show how different conditions can cause different colors.Image credit: Jerzy Strzelecki viaWikimedia Commons(CC BY 3.0)
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Striped icebergs are unequaled to Antarctica , where the highly dusty condition allow for these stripes to form .
