West Scotia Basin

West Scotia Basin, submarine trough of the Scotia Sea, an arm of the South Atlantic Ocean, about 500 miles (800 km) southeast of Tierra del Fuego, South America. Its mean depth is about 9,800 feet (3,000 m), and it is some 700 miles (1,130 km) long and 300 miles (480 km) wide. The submerged Scotia Ridge rises to the north of it and the South Shetland Islands to its south. The West Scotia Basin parallels...