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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.
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]
The Sohm Abyssal Plain is in the North Atlantic and has an area of around 900,000 square kilometres (350,000 sq mi). [1] It is located off the coast of the Canadian Maritime provinces and New England in the United States. [2] The region was named for Rudolf von Willemoes-Suhm, a German naturalist on the Challenger expedition in the late-19th ...
The Laurentian Fan plays a geographic role in the plotline of the 1990 film The Hunt for Red October.; The Laurentian Fan appears at the end of the 2007 film Transformers, with the United States government depicted dumping the remains of Megatron, the other defeated Decepticons, and the deceased Autobot Jazz into the fan, in hopes that the crushing depths and low temperature will destroy the ...
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]
The Porcupine Abyssal Plain is a vast, relatively level stretch of seabed with a depth range of 4,000 to 4,850 m (13,120 to 15,910 ft). It has a muddy floor in the abyssopelagic zone and scattered rocky abyssal hills that rise into the bathypelagic zone forming seamounts and knolls. [ 2 ]
The South Atlantic Bight is a bight in the United States coastline extending from Cape Hatteras, North Carolina to the Upper Florida Keys. [1] The Bight forms the western boundary of the Sargasso Sea and the Gulf Stream ocean current forms the eastern boundary of the ecosystem of the bight.
The Atlantic Ocean is underlain mostly by dense mafic oceanic crust made up of basalt and gabbro and overlain by fine clay, silt and siliceous ooze on the abyssal plain. The continental margins and continental shelf mark lower density, but greater thickness felsic continental rock that is often much older than that of the seafloor.