Word of the Day
Hydrothermal vents! are a pervasive phenomenon associated with the generation of new oceanic crust! at mid-ocean ridges. After formation, the crust cools as it moves away from the ridge axis. Cracks that form during cooling allow seawater to percolate into the crust resulting in the development of hydrothermal circulation systems. Hydrothermal circulation can be divided into three zones: recharge, reaction zone, and discharge.