| http://www.w3.org/ns/prov#value | - The hottest and most vigorous of the vents are black smokers, so called because when the fluids they emit hit the icy cold seawater, minerals in the fluids precipitate out and it looks just like dark, billowing smoke.Because of a paper published 15 years ago, it had been thought the vents were probably playing only the sounds of silence.
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