Black smokers
image of a black smoker
A seafloor hot spring called a black smoker. Click to play a Quicktime
movie (you will need the Quicktime Plug-in for your browser).
At high-temperature hydrothermal vents, called black smokers, sulfide chimneys form which are made out of minerals deposited directly from the vent fluid. The vent fluid looks like smoke because tiny mineral grains form when the hot vent fluid mixes with cold seawater.
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