ALEX MUSTARD / NATURE PICTURE LIBRARY / SCIENCE PHOTO LIBRARY ALEX MUSTARD / NATURE PICTURE LIBRARY / SCIENCE PHOTO LIBRARY
A diver and a hydrothermal chimney. Note that he is obscured by the different temperature waters (from the chimney and the surrounding water) which are unable to mix. The sea water was 4 degrees Celsius and the chimney gives out water at close to 100 degrees Celsius . The Arnarnes Strytur chimney, Eyjafjordur, Iceland. North Atlantic Ocean.
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