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  2. Continental rise - Wikipedia

    en.wikipedia.org/wiki/Continental_rise

    Alluvial or sedimentary fans are shallow cone-shaped reliefs at the base of the continental slope that merge together, forming the continental rise. [2] Erosional submarine canyons slope downward and lead to alluvial fan valleys with increasing depth. [2] It is in this zone that sediment is deposited, forming the continental rise.

  3. Continental margin - Wikipedia

    en.wikipedia.org/wiki/Continental_margin

    The continental shelf is the relatively shallow water area found in proximity to continents; it is the portion of the continental margin that transitions from the shore out towards to ocean. Continental shelves are believed to make up 7% of the sea floor. [3] The width of continental shelves worldwide varies in the range of 0.03–1500 km. [4]

  4. Continental shelf - Wikipedia

    en.wikipedia.org/wiki/Continental_shelf

    The shelf usually ends at a point of increasing slope [3] (called the shelf break).The sea floor below the break is the continental slope. [4] Below the slope is the continental rise, which finally merges into the deep ocean floor, the abyssal plain. [5]

  5. List of submarine topographical features - Wikipedia

    en.wikipedia.org/wiki/List_of_submarine...

    An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3,000 meters (9,800 ft) and 6,000 meters (20,000 ft).Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains are among the flattest, smoothest and least explored regions on Earth. [1]

  6. Continental shelf of Brazil - Wikipedia

    en.wikipedia.org/wiki/Continental_shelf_of_Brazil

    Geologically, Brazil's legal continental shelf mostly corresponds to a divergent continental margin formed by the split between South America and Africa, with a well-defined shelf, slope and rise. It is at its widest off the Northern coast, where the Amazon River forms one of the world's largest submarine fans .

  7. Seabed - Wikipedia

    en.wikipedia.org/wiki/Seabed

    From the abyssal plain, the seabed slopes upward toward the continents and becomes, in order from deep to shallow, the continental rise, slope, and shelf. The depth within the seabed itself, such as the depth down through a sediment core, is known as the "depth below seafloor".

  8. Gulf of Mexico - Wikipedia

    en.wikipedia.org/wiki/Gulf_of_Mexico

    The Gulf of Mexico is 41% continental slope, 32% continental shelf, and 24% abyssal plain with the greatest depth of 12,467 feet in the Sigsbee Deep. [52] Seven main areas are given as: [citation needed] Gulf of Mexico basin contains the Sigsbee Deep and can be further divided into the continental rise, the Sigsbee Abyssal Plain, and the ...

  9. Benthic zone - Wikipedia

    en.wikipedia.org/wiki/Benthic_zone

    The continental shelf is a gently sloping benthic region that extends away from the land mass. At the continental shelf edge, usually about 200 metres (660 ft) deep, the gradient greatly increases and is known as the continental slope. The continental slope drops down to the deep sea floor.