Pacific Ring of Fire Expedition. Bacteria Balls forming on the leftand and rolling down hill on the right. These microbial mats are similarin composition to those as seen at the Yellow Top Vent site.The balls range from 1 to 5 cm (~1 in) in diameter.
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