12 Facts About Atlantic Ocean

1. Atlantic Ocean is bounded on the west by North and South America.

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2. Bathymetry of the Atlantic Ocean is dominated by a submarine mountain range called the Mid-Atlantic Ocean Ridge.

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3. Continental shelves in the Atlantic Ocean are wide off Newfoundland, southernmost South America, and north-eastern Europe.

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4. The south tides in the Atlantic Ocean are semi-diurnal; that is, two high tides occur every 24 lunar hours.

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5. The wide range of salinities in the North Atlantic Ocean is caused by the asymmetry of the northern subtropical gyre and the large number of contributions from a wide range of sources: Labrador Sea, Norwegian-Greenland Sea, Mediterranean, and South Atlantic Ocean Intermediate Water.

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6. South Atlantic Ocean is dominated by the anti-cyclonic southern subtropical gyre.

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7. Atlantic Ocean is underlain mostly by dense mafic oceanic crust made up of basalt and gabbro and overlain by fine clay, silt and siliceous ooze on the abyssal plain.

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8. Opening of the Atlantic Ocean coincided with the initial break-up of the supercontinent Pangaea, both of which were initiated by the eruption of the Central Atlantic Magmatic Province, one of the most extensive and voluminous large igneous provinces in Earth's history associated with the Triassic–Jurassic extinction event, one of Earth's major extinction events.

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9. Geologically, the Northern Atlantic Ocean is the area delimited to the south by two conjugate margins, Newfoundland and Iberia, and to the north by the Arctic Eurasian Basin.

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10. The opening of the North Atlantic Ocean caused significant uplift of continental crust along the coast.

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11. North Atlantic Ocean contains about 810 seamounts, most of them situated along the Mid-Atlantic Ridge.

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12. Atlantic Ocean became the scene of one of the longest continuous naval military camapaigns throughout World War II, from 1939 to 1945.

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