The extensive iron-dominated venting at Healy volcano was a surprise. Large
areas (acre size) on several young volcanic cones were covered with actively
forming or recently active bacterial mat.
Image ID: expl1831, Voyage To Inner Space - Exploring the Seas With NOAA Collect Location: New Zealand, Kermadec Arc Photo Date: 2005 April Credit: New Zealand-American Submarine Ring of Fire 2005 Exploration; NOAA Vents Program