Ocean basins, the largest depressions on earth, have continental shelves forming their sides. ocean-basin floor The ocean floor in those parts of the oceans that are more than 2000 m deep. Ocean Area (106 km2) Volume (106 km3) Mean Depth (m) Maximum Depth (m) Pacific 181.3 714.4 3940 11022 Atlantic 94.3 337.2 3575 8605 Indian 74.1 284.6 3840 7450 There are five major ocean basins: the Pacific basin, the Atlantic basin, the Indian Basin, the Arctic basin and the Southern basin. Source for information on ocean-basin floor: A Dictionary of Earth Sciences dictionary. The ocean basins contain many extraordinary geological features, including deep trenches and vast mountain ranges. It includes the continental shelf, a sloping section of … The ocean basins are partially bounded by the continents, but they are interconnected which is why marine scientists refer to a single “world ocean.” The world ocean is divided into the North and South Pacific, North and South Atlantic, Indian, and Arctic Oceans. Ocean basin that will experience the evolution is the one that has an active tectonic margin. A continental margin is a part of the ocean basin that is adjacent to a continent. Ocean Basins Ocean basins are the largest depressions on Earth. 22 Table Areas, volumes, mean depths and maximum depths of the four major ocean basins. Panthalassa Panthalassa (Greek, meaning 'all sea‘) was existing during the late Paleozoic and the early Mesozoic years. You have probably guessed by now that the castle in this mental exercise is Earth, and the North Wing is the vast, ice-covered Arctic Ocean Basin.If the old adage is true that we know more about the surface of our neighboring planets than we do about Earth's ocean basins (and it is), then nowhere is it more true than the Arctic Basin. These basins are constantly changing due to tectonic activity, such as seafloor spreading and subduction. An ocean basin is one of several structures formed by the oceanic crust. The average depth of the basin is 12,881 feet and the deepest point is the Puerto Rico Trench at 28,231 feet below the water. There are five major ocean basins, coordinating with the major oceans of the world: the Pacific basin, the Atlantic basin, the Indian basin, the Arctic basin, and the Southern basin. The Atlantic Ocean Basin covers approximately 29 million square miles of the Earth’s surface, extending from the Arctic Ocean in the north, to the Southern Ocean above Antarctica. More specifically, it is a saucer-shaped depression under sea level, allowing the seawater to flow into it.It is bordered by continental margins, which extend seaward in varying degrees of inclination; this inclination determines the amount of water flowing into the basins. Continental Margins. The existence of the active tectonic margin is being marked by the tectonic activity for sure. Taking an example of the west coast of South Africa, you can see so many active tectonic margin there. Edges of the continents, called continental shelves, form the sides of ocean basins. 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