Sulfide chimneys coated with iron-based microbial mat at the Urashima vent site.
Sulfide Chimneys
Image courtesy of Submarine Ring of Fire 2014 - Ironman, NSF/NOAA, Jason, Copyright WHOI. Download larger version (jpg, 1.8 MB).

Sulfide chimneys coated with iron-based microbial mat at the Urashima vent site.

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