Rocky outcrops standing above the sediment like you see here contain brightly colored areas, altered from past hydrothermal activity.
Rocky Outcrop
Image courtesy of the NOAA Office of Ocean Exploration and Research, INDEX-SATAL 2010. Download larger version (jpg, 2.4 MB).
Rocky outcrops standing above the sediment like you see here contain brightly colored areas, altered from past hydrothermal activity.
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