http://web.archive.org/web/20130709175142/http://www.oceanlab.abdn.ac.uk/esonet/black.php
one thread leads to another - here’s a link to the archive article on the Black Sea.
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Sea floor features in Black Sea. Bacterial mats, encrustaceans and gas bubbles streaming upwards from vents. Images courtesy GHOSTDABS - Hamburg University.
:’)