Icebergs Comes In Stripes.

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The Norwegian sailor Oyvind Tangen when on a research in the Antartic, came across unusual black lines striped through an iceberg.

(Image: credit.)
(Image: credit.)
(Image credit: credit.)
(Image: credit.)
Most of them appear white due to the tiny bubbles within them that scatter light in all directions. When a crevice in the ice sheet or a part of an iceberg melts and quickly refreezes, then bubbles are not formed and it can appear blue.

(Image: credit.)
(Image: credit.)
(Image: credit.)
(Image: credit.)
When an iceberg falls into the sea, a layer of salty seawater can form ice on its underside. If that is rich in algae, it can form a green stripes. Brown, black and yellow lines are formed by sediments, that might be picked up when the ice sheet is on its way downhill towards the sea.

(Image: credit.)
(Image: credit.)
(Image: credit.)