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  2. List of tectonic plates - Wikipedia

    en.wikipedia.org/wiki/List_of_tectonic_plates

    Map showing Earth's principal tectonic plates and their boundaries in detail. These plates comprise the bulk of the continents and the Pacific Ocean.For purposes of this list, a major plate is any plate with an area greater than 20 million km 2 (7.7 million sq mi)

  3. Seabed - Wikipedia

    en.wikipedia.org/wiki/Seabed

    The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as 'seabeds'. The structure of the seabed of the global ocean is governed by plate tectonics. Most of the ocean is very deep, where the seabed is known as the abyssal plain. Seafloor spreading creates ...

  4. Oceanic plateau - Wikipedia

    en.wikipedia.org/wiki/Oceanic_plateau

    An oceanic or submarine plateau is a large, relatively flat elevation that is higher than the surrounding relief with one or more relatively steep sides. [ 1 ] There are 184 oceanic plateaus in the world, covering an area of 18,486,600 km 2 (7,137,700 sq mi) or about 5.11% of the oceans. [ 2 ]

  5. List of tectonic plate interactions - Wikipedia

    en.wikipedia.org/wiki/List_of_tectonic_plate...

    It is also called the "Tethyan" Zone, as it constitutes the zone along which the ancient Tethys Ocean was deformed and disappeared. The following mountain belts can be distinguished: The European Alps; The Carpathians; The Pyrenees; The Apennines; The Dinarides; The North African mountain belts such as the Atlas Mountains

  6. Mid-ocean ridge - Wikipedia

    en.wikipedia.org/wiki/Mid-ocean_ridge

    The first discovered mid-ocean ridge was the Mid-Atlantic Ridge, which is a spreading center that bisects the North and South Atlantic basins; hence the origin of the name 'mid-ocean ridge'. Most oceanic spreading centers are not in the middle of their hosting ocean basis but regardless, are traditionally called mid-ocean ridges.

  7. Nazca plate - Wikipedia

    en.wikipedia.org/wiki/Nazca_Plate

    The Carnegie Ridge is a 1,350-kilometre-long (840 mi) and up to 300-kilometre-wide (190 mi) feature on the ocean floor of the northern Nazca plate that includes the Galápagos archipelago at its western end. It is being subducted under South America with the rest of the Nazca plate.

  8. Marine geology - Wikipedia

    en.wikipedia.org/wiki/Marine_geology

    Marine geology or geological oceanography is the study of the history and structure of the ocean floor. It involves geophysical, geochemical, sedimentological and paleontological investigations of the ocean floor and coastal zone. Marine geology has strong ties to geophysics and to physical oceanography.

  9. Oceanic crust - Wikipedia

    en.wikipedia.org/wiki/Oceanic_crust

    The oceanic crust displays a pattern of magnetic lines, parallel to the ocean ridges, frozen in the basalt. A symmetrical pattern of positive and negative magnetic lines emanates from the mid-ocean ridge. [24] New rock is formed by magma at the mid-ocean ridges, and the ocean floor spreads out from this point.