Thursday, March 20, 2008

Fabulous Rainbow Iceberg

clipped from
Resembling a strange creature from the deep, this rare marbled iceberg was spotted in the waters of the Antarctic by a Norwegian sailor
Rainbow iceberg in the Antarctic
Oyvind Tangen, 62, was on board the research ship G O Sars when he photographed the unusual ice formation, floating a few miles off the coast of the frozen continent
While most icebergs are white due to tiny bubbles trapped inside, which scatter the light in every direction, some pick up a multitude of colours due to various natural phenomena

Green stripes are the result of algae growing in the ice, while brown, black and yellow lines form as the ice sheets from which bergs are formed pick up layers of sediment
Deep blue lines can also appear when the air bubbles are squeezed out due to rapid melting and re-freezing of the ice.
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