abyssal plain


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Related to abyssal plain: Continental Rise

abyssal plain:

see oceanocean,
interconnected mass of saltwater covering 70.78% of the surface of the earth, often called the world ocean. It is subdivided into four (or five) major units that are separated from each other in most cases by the continental masses. See also oceanography.
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abyssal plain

[ə′bis·əl ′plān]
(geology)
A flat, almost level area occupying the deepest parts of many of the ocean basins.
References in periodicals archive ?
Scientists know little about the benthic (deep-sea) species residing in the abyssal plains, but what they're learning shows them to be highly adapted to an extreme environment, where temperatures hover just above freezing and pressures become crushing.
2003), is parallel to the regional trend and trench axis, which is characteristic of trenches where abyssal plains are incorporated into the accretionary wedges (Dickinson, 1982; Nilsen and Zuffa, 1982; De Roza et al.
The flat abyssal plains of soft silt haven't managed to avoid cable troubles either.
In 2007, a total of 6900 km of seismic data were collected over the Sohm Abyssal Plain (see Fig.
Ocean-continent boundary in the Iberia Abyssal Plain from multichannel seismic data.
The results show that cyclonic features are depicted in the Tyrrhenian Sea, the Abyssal Plain and the Ligurian Sea, and anticyclonic in the Algiers Basin and the Sardiniono-Balearic Pass.
There are just five manned submarines in the world that can reach the abyssal plain and less than one per cent of it has been explored.
The northern Newfoundland Basin (NB) is the conjugate to the Iberia Abyssal Plain.
As a result, the observatory network spans both continental and oceanic crust, extending from the coast across the shelf, down the continental slope (including a submarine canyon), across the abyssal plain, to span the mid-ocean ridge (Fig.
Therefore, ODP Leg 173 enlarged the information on the sediment cover of the continental and oceanic basement in the Iberian Abyssal Plain (IAP) by recording the depositional sequences from the late Jurassic (Tithonian) to early Tertiary (Eocene), the most important stratigraphic interval in the structural development of the Iberian plate.
3 mm, taken by a 25-foot otter trawl on an abyssal plain off Baja California, Mexico (31[degrees]20'N, 120[degrees]8'W), 3707-3806 m, 23 March 1970, R/V Melville, SIO sta.