Black smokers release acidic,  carbon-dioxide-rich water, heated to hundreds of degrees Celsius and packed with sulphur, iron, copper, and other metals essential to life.
As fumarolas negras libertam água ácida e rica de anidrido carbónico, aquecida a centenas de graus Celsius e repleta de enxofre, ferro, cobre e outros metais essenciais para a vida.