Bathymetry In 4 editions of 36.

• more than one quarter of the Arctic sea floor;
• the Eurasian shelf is very wide, extending out 1,500 km (930 mi), and is the largest continental shelf in the world

the following are examples of continental-shelf features in the Arctic Ocean (see Figure 2):

Barents Shelf

Beaufort Shelf

Davis Sill

Chukchi Shelf

East Siberian Shelf

Kara Shelf

Laptev Shelf

Lincoln Shelf

the following are examples of continental-slope features in the Arctic Ocean (see Figure 2):

Litke Trough

Novaya Zemlya Trough

Svyataya Anna Trough (Saint Anna Trough)

Voronin Trough

the following are examples of abyssal-plain features in the Arctic Ocean (see Figure 2):

Baffin Basin

Canada Basin

Fram/Amundsen Basin

Greenland Abyssal Plain

Iceland Basin

Makarov Basin

Molloy Deep (deepest point in the Arctic Ocean)

Nansen Basin

Norwegian Basin

the following are examples of mid-ocean ridges in the Arctic Ocean (see Figure 2):

Gakkel Ridge

Mohns Ridge

the following are examples of undersea terrain features on the floor of the Arctic Ocean (see Figure 2):

Lomonosov Ridge

Gakkel Ridge

Alpha Ridge

Mendeleev Rise

Chukchi Plateau

the passive margins of the Atlantic Ocean provide for wide continental shelves in North America, Northwest Europe, and the southern coast of South America

the following are examples of features on the continental shelf of the Atlantic Ocean:

Blake Plateau (Figure 5)

Celtic Shelf (Figure 2)

Dogger Bank (Figure 2)

Flemish Cap (Figure 2)

Falkland Plateau (Figure 3)

Grand Banks of Newfoundland (Figure 2)

Great Bahama Bank (Figure 5)

Little Bahama Bank (Figure 5)

Tunisian Plateau (Figure 4)

Yucatán Shelf (Figure 5)

the following are examples of features on the continental slope of the Atlantic Ocean:

Amazon Cone (Figure 3)

Congo Fan (Figure 3)

Hudson Canyon (Figure 5)

Mississippi Fan (Figure 5)

the following are examples of features on the abyssal plains of the Atlantic Ocean:

Angola Basin (Figure 3)

Agulhas Basin (Figure 3)

Argentine Basin (Figure 3)

Brazil Basin (Figure 3)

Canary Basin (Figure 2)

Cape Basin (Figure 3)

Colombia Basin (Figure 2)

Labrador Basin (Figure 2)

Mexico Basin (Figure 2)

Newfoundland Basin (Figure 2)

North American Basin (Figure 2)

Venezuela Basin (Figure 2)

West European Basin (Figure 2)

• the Charlie-Gibbs Fracture Zone displaces the mid-ocean ridge 350 km to the west, separating the Mid-Atlantic Ridge from the Reykjanes Ridge;
• the Romanche Fracture Zone, located near the equator, offsets the Mid-Atlantic Ridge 900 km and is considered the dividing line between the North and South Atlantic Oceans

the following are examples of mid-ocean ridges on the floor of the Atlantic Ocean:

East Mediterranean Ridge (Figure 4)

Mid-Atlantic Ridge (Figures 2, 3)

Reykjanes Ridge (Figure 2)

the following are examples of undersea terrain features on the floor of the Atlantic Ocean:

Bermuda Rise (Figure 2)

Cape Verde Plateau (Figure 2)

New England Seamounts (Figure 2)

Rio Grande Plateau (Figure 3)

Rockall Plateau (Figure 2)

the following are examples of ocean trenches on the floor of the Atlantic Ocean:

Cayman Trench (Caribbean Sea) (Figure 2)

Hellenic Trench (Mediterranean Sea) (Figure 4)

Puerto Rico Trench (Figure 2) - deepest point in the Atlantic

South Sandwich Trench (South Atlantic) (Figure 3)

the following are examples of features on the continental shelf of the Indian Ocean (see Figure 2):

Exmouth Plateau

Indus Canyon

The Swatch of No Ground/Ganges Canyon (Bay of Bengal)

Sunda Shelf

the following are examples of features on the continental slope of the Indian Ocean (see Figure 2):

Bengal Fan

Indus Fan

the following are examples of features on the abyssal plains of the Indian Ocean (see Figure 2):

Arabian Basin

Crozet Basin

Madagascar Basin

Mid-Indian Basin

Mozambique Basin

Wharton Basin

the following are examples of mid-ocean ridges on the floor of the Indian Ocean (see Figure 2):

Central Indian Ridge

Davie Ridge

Southeast Indian Ridge

Southwest Indian Ridge

the following are examples of undersea terrain features on the floor of the Indian Ocean (see Figure 2):

Andaman-Nicobar Ridge

Chagos-Laccadive Ridge

Kerguelen Plateau

Madagascar Plateau

Mascarene Plateau

Mozambique Plateau

Ninetyeast Ridge

the following are examples of ocean trenches on the floor of the Indian Ocean (see Figure 2):

Java/Sunda Trench (deepest point in the Indian Ocean)

the following are examples of atolls in the Indian Ocean (see Figure 2):

Bassas da India

Chagos Archipelago/Diego Garcia

Europa Island

Juan de Nova Island

Lakshadweep Islands

Maldive Islands

Seychelles

the following are examples of features on the continental shelf of the Pacific Ocean:

Arafura Shelf (Figure 5)

Sahul Shelf (Figure 5)

Sunda Shelf (Figure 5)

Taiwan Banks (Figure 5)

the following are examples of features on the continental slope of the Pacific Ocean:

Pribilof Canyon (Figure 2)

Zhemchug Canyon (Figure 2; deepest submarine canyon)

the following are examples of features on the abyssal plains of the Pacific Ocean:

Aleutian Basin (Figure 2)

Central Pacific Basin (Figure 2)

Northeast Pacific Basin (Figure 2)

Northwest Pacific Basin (Figure 2)

Philippine Basin (Figure 4)

Southwest Pacific Basin (Figure 4)

Tasman Basin (Figure 4)

the following are examples of mid-ocean ridges on the floor of the Pacific Ocean:

East Pacific Rise (Figure 3)

Pacific-Antarctic Ridge (Figure 3)

the following are examples of undersea terrain features on the floor of the Pacific Ocean:

Caroline Seamounts (Figure 5)

East Mariana Ridge (Figure 4)

Emperor Seamount Chain (Figure 2)

Hawaiian Ridge (Figure 2)

Lord Howe Seamount Chain (Figure 4)

Louisville Ridge (Figure 4)

Kapingamarangi (Ontong-Java) Rise (Figure 5; largest submarine plateau)

Macclesfield Bank (Figure 5)

Marshall Seamounts (Figure 2)

Magellan Seamounts (Figure 2)

Mid-Pacific Seamounts (Figure 2)

Reed Tablemount (Figure 5)

Shatsky Rise (Figure 2; third-largest submarine plateau)

Tonga-Kermadec Ridge (Figure 4)

the following are examples of ocean trenches on the floor of the Pacific Ocean:

Aleutian Trench (Figure 2)

Chile Trench (Figure 3)

Izu-Ogasawara Trench (Figure 2)

Japan Trench (Figure 2)

Kermadec Trench (Figures 3, 4)

Kuril-Kamchatka Trench (Figure 2)

Manus Trench (Figure 4)

Mariana Trench (Figures 2, 4; deepest ocean trench)

Middle America Trench (Figure 3)

Nansei-Shoto Trench (Figure 5)

Palau Trench (Figures 2, 4)

Philippine Trench (Figure 4)

Peru-Chile Trench (Figure 3)

South New Hebrides Trench (Figure 4)

Tonga Trench (Figures 3, 4)

Yap Trench (Figures 2, 4)

the following are examples of atolls in the Pacific Ocean, and because they are also countries or territories, they have entries in The World Factbook with additional information:

Federated States of Micronesia

French Polynesia

Kiribati

Marshall Islands

Midway Island

Tonga

Tuvalu

Vanuatu

Wake Island

the following are examples of features on the continental shelf of the Southern Ocean (see Figure 2):

Astrid Ridge (see also Figure 4)

Belgrano Bank

Gunnerus Ridge (see also Figure 4)

Hayes Bank

Iselin Bank

the following are examples of features on the continental slope of the Southern Ocean (see Figure 2):

Amery Basin (Figure 4)

Filchner Trough

Hillary Canyon

Pobeda Canyon (Figure 3)

the following are examples of features on the abyssal plains of the Southern Ocean (see Figures 2, 3, and 4):

Amundsen (Abyssal) Plain

Enderby (Abyssal) Plain

South Indian/Australian-Antarctic Basin

Southeast Pacific/Bellinghausen Basin

Weddell (Abyssal) Plain

the following are examples of mid-ocean ridges on the floor of the Southern Ocean (see Figure 2):

Pacific-Antarctic Ridge (Figure 3)

the following are examples of undersea terrain features on the floor of the Southern Ocean (see Figure 2):

Akopov Seamounts (Figure 3)

De Gerlache Seamounts (see also Figure 3, 4)

Endurance Ridge (Figure 4)

Marie Byrd Seamount (see also Figure 3)

Maud Rise (see also Figure 4)

Scott Seamounts (see also Figure 3)

the following are examples of ocean trenches on the floor of the Southern Ocean (see Figure 2):

South Sandwich Trench (Figure 4; the deepest location in the Southern Ocean)