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  2. Mariana Trench - Wikipedia

    en.wikipedia.org/wiki/Mariana_Trench

    The Mariana Trench is an oceanic trench located in the western Pacific Ocean, about 200 kilometres (124 mi) east of the Mariana Islands; it is the deepest oceanic trench on Earth. It is crescent-shaped and measures about 2,550 km (1,580 mi) in length and 69 km (43 mi) in width. The maximum known depth is 10,984 ± 25 metres (36,037 ± 82 ft ...

  3. Abyssal zone - Wikipedia

    en.wikipedia.org/wiki/Abyssal_zone

    The abyssal zone or abyssopelagic zone is a layer of the pelagic zone of the ocean. The word abyss comes from the Greek word ἄβυσσος (ábussos), meaning "bottomless". [1] At depths of 4,000–6,000 m (13,000–20,000 ft), [2] this zone remains in perpetual darkness. [3] [4] It covers 83% of the total area of the ocean and 60% of Earth's ...

  4. Deep sea - Wikipedia

    en.wikipedia.org/wiki/Deep_sea

    Schematic representation of pelagic and benthic zones. The deep sea is broadly defined as the ocean depth where light begins to fade, at an approximate depth of 200 m (660 ft) or the point of transition from continental shelves to continental slopes. [ 1 ][ 2 ] Conditions within the deep sea are a combination of low temperatures, darkness, and ...

  5. Aphotic zone - Wikipedia

    en.wikipedia.org/wiki/Aphotic_zone

    Depending on how it is defined, the aphotic zone of the ocean begins between depths of about 200 m (660 ft) to 800 m (2,600 ft) and extends to the ocean floor. [ 1 ] [ 2 ] [ 3 ] The majority of the ocean is aphotic, with the average depth of the sea being 4,267 m (13,999 ft) deep; the deepest part of the sea, the Challenger Deep in the Mariana ...

  6. Hadal zone - Wikipedia

    en.wikipedia.org/wiki/Hadal_zone

    The hadal zone, also known as the hadopelagic zone, is the deepest region of the ocean, lying within oceanic trenches. The hadal zone ranges from around 6 to 11 km (3.7 to 6.8 mi; 20,000 to 36,000 ft) below sea level, and exists in long, narrow, topographic V-shaped depressions. [1][2] The cumulative area occupied by the 46 individual hadal ...

  7. Milwaukee Deep - Wikipedia

    en.wikipedia.org/wiki/Milwaukee_Deep

    Location map Puerto Rico trench - USGS Perspective view of the sea floor of the Atlantic Ocean and the Caribbean Sea. The Lesser Antilles are on the lower left side of the view and Florida is on the upper right. The purple sea floor at the center of the view is the Puerto Rico trench, the deepest part of the Atlantic Ocean and the Caribbean Sea.

  8. Puerto Rico Trench - Wikipedia

    en.wikipedia.org/wiki/Puerto_Rico_Trench

    The purple sea floor at the center of the view is the Puerto Rico Trench, the deepest part of the Atlantic Ocean and the Caribbean Sea. The Puerto Rico Trench is located on the boundary between the Caribbean Sea and the Atlantic Ocean, parallel to and north of Puerto Rico and the Virgin Islands. The oceanic trench, the deepest in the Atlantic ...

  9. Bathypelagic zone - Wikipedia

    en.wikipedia.org/wiki/Bathypelagic_zone

    The bathypelagic zone or bathyal zone (from Greek βαθύς (bathýs), deep) is the part of the open ocean that extends from a depth of 1,000 to 4,000 m (3,300 to 13,000 ft) below the ocean surface. It lies between the mesopelagic above and the abyssopelagic below. The bathypelagic is also known as the midnight zone because of the lack of ...