Pacific Ring of Fire Expedition.Interlayered basaltic (dark) and felsic (light)ash layers in the east wall of West Rota caldera. This cliff is approximately3 meters [9 ft.] tall.
Date: 2004 April
Credit: Pacific Ring of Fire 2004 Expedition. NOAA Office of Ocean Exploration; Dr. Bob Embley, NOAA PMEL, Chief Scientist
Location: Mariana Arc region, Western Pacific Ocean
Subject: Ocean exploration