Methane bubbling through seafloor creates undersea hills
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.