Pacific Ring of Fire Expedition. A contact between the lower basaltic andupper felsic ash units in the wall of the West Rota caldera.The outcrop is approximately 2 meters 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