Iron and silica rich chimneys on the summit of Giggenbach volcano are evidence of warm springs that were active at this site in the past.

Iron and silica rich chimneys on the summit of Giggenbach volcano are evidence of warm springs that were active at this site in the past. Image courtesy of New Zealand-American Submarine Ring of Fire 2005 Exploration, NOAA Vents Program.

Related Links

New Zealand American Submarine Ring of Fire 2005

New Zealand American Submarine Ring of Fire 2005: April 18 Log

NOAA Ocean Explorer Gallery

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