Images from underwater video footage of the seafloor, modified after publication in the journal Eos. (a) View of the pustular white mat covering approximately 75 percent of the seafloor. The yellow circles indicate ascending gas bubbles of unknown composition. Water depth is 2,756 feet (840 meters). (b) View of a small boulder dropstone resting on the white mat. (c) Close-up view of the white mat with recent, gray-colored silt and clay. (d) View of mudflow channels and suspended particulate near the vent opening.
Credit: Eugene Domack, Hamilton College, et al., 2005