A mid-ocean ridge (MOR) is a seafloor mountain system formed by plate tectonics. It typically has a depth of ~ 2,600 meters (8,500 ft) and rises about two kilometers above the deepest portion of an ...
The human-occupied vehicle Alvin, during a dive on the East Pacific Rise, collected samples and recovered instruments placed at the vents during previous expeditions. Woods Hole, Mass (October 13, ...