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Bubbles coming from seafloor seep

By Coastal and Marine Hazards and Resources Program 2013 (approx.)
Underwater photo of rocks and bubbles coming out of a gap between them.
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Detailed Description

Bubbles being emitted from a seafloor seep. A methane hydrate deposit (white icelike crystals) has formed beneath an overhanging rock above the seep. Red dots on the laser scale are separated by 10 centimeters (nearly 4 inches). Image courtesy of NOAA Okeanos Explorer Program, Northeast U.S. Canyons Expedition 2013.

Sources/Usage

Public Domain.