Pacific Ring of Fire Expedition. Active "smoker" chimneys precipitating iron, copper and zinc sulfides from 230øC fluid. 9 meters tall from the base to the top of the chimneys seen in the photograph. Dark beehive-type chimneys, here about 30 cm tall, commonly sit on top of these structures.

Image ID: expl0074, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Location: Mariana Arc region, Western Pacific Ocean
Photo Date: 2004 April
Credit: Pacific Ring of Fire 2004 Expedition. NOAA Office of Ocean Exploration; Dr. Bob Embley, NOAA PMEL, Chief Scientist

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