Deep Ocean Hydrothermal Vents - John Seach

Submarine hydrothermal vents are the exit points for the convection of seawater within the crust.
They are driven by the interaction of seawater and submarine volcanoes.

The systems have 3 parts
Recharge Zone - seawater percolates down through the crust and is slowly heated.
Reaction Zone - high-temperature zone where fluid equilibrates with hot rock.
Upflow Zone - where buoyant fluids ascend rapidly to the seafloor.

Locations of Active Submarine Hydrothermal Vents
More than 35 active submarine hydrothermal vent sites have been located and sampled.
Mid Atlantic, Eastern Pacific, Hawaii, Western Pacific, Society islands, Red Sea.
 

Deep Ocean Hydrothermal Vents
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