Pacific Ring of Fire Expedition. Columnar jointing in pumice boulder on the top of West Rota volcano. Note crinoid growing on the surface. The image is approximately 0.5 meters [18 in] high.

Image ID: expl0044, 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

Category: Ocean exploration/

• High Resolution Photo Available