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An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3,000 and 6,000 metres (9,800 and 19,700 ft). Lying generally between the foot of a continental rise and a mid-ocean ridge , abyssal plains cover more than 50% of the Earth 's surface.
It was also known [when?] as the Argo Plain; another suggested [by whom?] name is the Argo Abyssal Plain. It was discovered by the U.S. research vessel "Argo" of the Scripps Institution of Oceanography in 1960. [1] It should be distinguished from an Australian sedimentary basin with the same name. [2] [3]
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 ...
Porcupine Abyssal Plain. The Porcupine Abyssal Plain (PAP) is located in international waters, adjacent to the Irish continental margin. [1] The PAP lies beyond the Porcupine Bank's deepest point and is southwest of it. It has a muddy seabed, with scattered abyssal hills that covers an area approximately half the size of Europe's landmass. Its ...
The Argentine Abyssal Plain forms part of the Argentine Basin off the east coast of Argentina. It comprises the deepest sections of the basin on the western and south-western margins, reaching a depth of 6,212m (20,381 feet).
For research purposes, the Madeira Abyssal Plain can be divided into three sub-basins. They are a southern sub-basin, which lies at a water depth of about 5,350 meters (17,550 ft), a central sub-basin which lies at a deeper water depth of about 5,440 meters (17,850 ft), and the northern sub-basin which lies at an intermediate water depth of about 5,420 meters (17,780 ft).
Profile of the Arctic Ocean from the Barents Sea towards the (geographic) North Pole. The Nansen Basin (also Central Basin, [1] formerly Fram Basin) is an abyssal plain with water-depths of around 3 km in the Arctic Ocean and (together with the deeper Amundsen Basin) part of the Eurasian Basin.
The Euxine abyssal plain is a physiographic province of the Black Sea, an abyssal plain in its central parts. Its name comes from the Ancient Greek name Euxeinos Pontos ( Εὔξεινος Πόντος ) of the Black Sea.