Exposed methane hydrate, a translucent white, smooth ice-like substance, attached to a carbonate overhang was seen at a depth of 2,018 meters (1.25 miles) during the fourth Seascape Alaska 3 expedition dive. The overhang was home to tubeworms, clams, anemones, and crabs. This was one of three areas where exposed hydrates were observed during the dive.
Methane Hydrate
Image courtesy of NOAA Ocean Exploration, Seascape Alaska. Download larger version (jpg, 1.9 MB).

Exposed methane hydrate, a translucent white, smooth ice-like substance, attached to a carbonate overhang was seen at a depth of 2,018 meters (1.25 miles) during the fourth Seascape Alaska 3 expedition dive. The overhang was home to tubeworms, clams, anemones, and crabs. This was one of three areas where exposed hydrates were observed during the dive.