Pacific Ring of Fire Expedition. Sampling hydrothermal vent fluids at Cavevent, using the Hot Fluid Sampler (HFS). The white coating on the rocks isbacterial mat. The sampling nozzel is 25 cm (10 in).
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