As for ocean basins, the Pacific Ocean is the world's largest, covering 63 million square miles, with deep depths averaging 13,000 feet. Drainage, structural and ocean are the major types of basins.

Located in the Pacific Ocean 900 miles (1,448 kilometers) off the coast of Chile, the seamount is 1.9 miles (3,109 meters) tall and part of an underwater mountain range that is home to sponge ...

Located in the Pacific Ocean 900 miles (1,448 kilometers) off the coast of Chile, the seamount is 1.9 miles (3,109 meters) tall and part of an underwater mountain range that is home to sponge ...