Methane bubbling through seafloor creates undersea hills

From MBARI February 5th
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This conceptual drawing (not to scale) shows Paull’s hypothesis that methane gas from deep hydrate deposits could push sediment up from below the ocean bottom to create a pingo-like feature. The gray lines in the background are from a seismic profile through one of these enigmatic features.
Image: (c) 2007 MBARI



Image credit: (c) 2003 Charlie Paull

This photograph shows a terrestrial pingo rising on the Tuktoyaktuk Peninsula, in far northern Canada. “Pingo-like features” are similar in shape, but form on the floor of the Arctic Ocean.