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Submarine canyon, any of a class of narrow steep-sided valleys that cut into continental slopes and continental rises of the oceans. Submarine canyons originate either within continental slopes or on a continental shelf. They are rare on continental margins that have extremely steep continental.
Submarine canyons are deep, large-scale incisions that occur on the continental shelf and slope of all ocean margins. These landforms serve as preferential particle-transport conduits that connect the coastal zone with the deep-sea. Canyons have been studied for decades and are among the most iconic submarine geomorphic features.
A submarine canyon is a steep-sided valley cut into the seabed of the continental slope, sometimes extending well onto the continental shelf, having nearly vertical walls, and occasionally having canyon wall heights of up to 5 km (3 mi), from canyon floor to canyon rim, as with the Great Bahama Canyon. [1]
Submarine canyons are major geologic features of continental margins that link the upper continental shelf to the abyssal plain. Results of the most recent surveys estimate approximately 9,000 canyons worldwide. Even with increased research activities in recent years, most canyons remain poorly known.
Submarine canyons are conduits delivering vast amounts of sediment, nutrients, and pollutants to deep-sea submarine fans, the largest accumulations of sediment in the world.
Submarine canyons are found throughout the world, representing complex seafloor features that link the upper continental shelf to the abyssal plain. They punctuate the margin by incising the shelf, creating scenic seascapes reminiscent of their terrestrial counterparts.
Submarine canyons are just what they sound like – channels incised into the seafloor, with shapes varying from straight, narrow cuts to meandering valleys.
Jul 19, 2017 · Submarine canyons are deep incisions observed along most of the world’s continental margins. Their topographic relief is as dramatic as that of any canyon or river valley on land but is hidden beneath the surface of the ocean.
The sediment-transfer zone between terrestrial source area and deep-sea depositional sink can include submarine canyon-channel systems, which generally pass from erosional V-shaped canyons...
5 days ago · A dye-release experiment within a sloping submarine canyon provides direct evidence that vigorous mixing at topographic features, such as canyons, leads to rapid diapycnal upwelling of deep water.
