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![The Mid-Atlantic Ridge hosts numerous hydrothermal vent fields map00324.jpg The Mid-Atlantic Ridge hosts numerous hydrothermal vent fields](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_map00324.jpg?itok=UICfqiPY)
Description
The Mid-Atlantic Ridge hosts numerous hydrothermal vent fields. Logatchev,Rainbow, and Saldahna are underlain by variable mixtures of deeper crustal rocks (gabbro and peridotite) and both Logatchev and Rainbow host high-temp blacksmokers. The other fields are also black smokers but are hosted on volcanicrocks. Lost City is the only known field composed of carbonate chimneys. (Image credit: Courtesy of University of Washington)