submarine canyon


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submarine canyon

[¦səb·mə′rēn ′kan·yən]
(geology)
Steep-sided valleys winding across the continental shelf or continental slope, probably originally produced by Pleistocene stream erosion, but presently the site of turbidity flows.
References in periodicals archive ?
ENPNewswire-July 30, 2019--University College Cork: Study finds plastics at bottom of deep submarine canyon
MONDAY, BBC4, 9PM Deep Ocean: Lights in the Abyss The world's first quest to film bioluminescent creatures in a huge submarine canyon in California's Monterey Bay using ultra-high sensitivity 4K cameras.
2016) with particular consideration for the La Jolla submarine canyon complex (Paull et al.
Our hypothesis suggests that mesoscale physical structures (e.g., eddies, fronts and upwelling shadows) occurring during upwelling events and the presence of two bathymetric structures (e.g., seamount and submarine canyon) may favour larval fish retention into Mejillones Bay.
The bay's most dramatic feature is not visible from shore: Monterey Bay Submarine Canyon, a chasm that in depth and complexity is the undersea equivalent of the Grand Canyon.
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.
Further south, and only a few kilometres off the Perth coast, is our largest submarine canyon and one of only three blue whale feeding areas in Australia.
A prickly shark has been captured for just the second time in history, in a submarine canyon off the coast of California.
In 2005, while conducting fish surveys using a manned submersible over natural reefs in the Santa Barbara Channel, southern California, we found an area of high skate egg density, located on the edge of Hueneme Submarine Canyon. Until that date, we had rarely observed skate eggs in our southern California surveys.
Seismic records indicate that the Wenonah J-75 well on the Scotian Shelf was the location, during the mid Cenozoic, of a tributary of a major submarine canyon incised into the shelf, debouching onto the lower slope.
In Monterey Bay's submarine canyon, for example, clumps of clams and tube worms cluster around sulfide-emitting "cold seeps," gathering energy thanks to sulfide-eating bacteria housed within their bodies.
One experiment provided eight settlement substrates to larvae: (1) carbonate rock, (2) frosted microscope slide, (3) unidentified sedimentary rock collected from the Monterey Submarine Canyon, (4) clam shell (Tresus nuttallii), (5) dead, air-dried ([greater than]1 month) L.

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