Continental Slope

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continental slope

[¦känt·ən¦ent·əl ′slōp]
(geology)
The part of the continental margin consisting of the declivity from the edge of the continental shelf extending down to the continental rise.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Continental Slope

 

one of the principal elements of the continental margin; it is located between the shelf and the continental rise. The continental slope has a steeper gradient than do the shelf and the ocean floor (an average of about 4°, but often 15°-20° and as much as 40°) and very rugged relief. Typical forms of rugged relief are terraces parallel to the lip and base of the slope and transverse hollows, or submarine canyons that usually begin on the shelf and extend to the base of the slope or the continental rise.

Through seismic research, dredging, and deep-water drilling it has been established that in terms of geological structure the continental slope is a direct continuation of the structures developed in adjacent areas of the continent. Because of the steepness of its surface the processes taking place in the upper part of the continental slope result in the movement of large masses of sedimentary material that take the form of subaqueous slumping and turbidity currents. Accumulation processes are more typical for the lower part of the continental slope. The types of deposits on the continental slopes include terrigenous sediments that are usually of silt composition, carbonaceous biogenic silts in the warm seas, and iceberg deposits and diatomaceous silts in the antarctic zone of the world ocean. The continental slope is a zone that is highly productive of organic matter and is singled out as a special bathyal zone.

O. K. LEONT’EV

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
(2016) found that about 12% of these low modes reach the continental slopes, compared to 31% found by Waterhouse et al.
A scheme for partial reflection at continental slopes uses the reflection coefficients of Kelly et al.
continental slope is a steep section of the seabed that borders the
continental slope is the transition zone between continental and oceanic
It covered the eastern Bering Sea upper continental slope (200 m to >1200 m depth) from just north of Unalaska Island north to the U.S.-Russian border, and was conducted with a Poly Nor'eastern bottom trawl equipped with mud-sweep roller gear on the footrope.
maculata also begin to appear near the shelf break in the eastern Bering Sea, although they are much more common on the continental slope. The presence of these species near the shelf break accounts for the high mean species richness values in the deep depth strata in this region.
It appears to be common along upper continental slopes at depths ranging from 200 to 1,000 m.
It is mesopelagic and benthopelagic over continental slopes at depths ranging from 39 to 2,200 m, but usually at depths between 400 m and 900 m (Yano and Tanaka, 1984; Wetherbee and Crow, 1996).
Risso's dolphins were encountered over the steeper sections of the upper continental slope (200-1000 m), whereas the Kogia spp.
[Part 3 of 4] Location Habitat Type Tiksi(2) Dry and wet continental slopes IBS(3,4) Wet continental slopes Sokol Station(3) Dry continental slopes Samoilovsky Island(4) Wet polygonal tundra Bykovskij(2) Wet polygonal tundra Yugos-Dje(3) Wet polygonal tundra Dallalaakh Island(2) Wet polygonal tundra Arga Muora Sise(3) Wet polygonal tundra Sagastyr Island(4) Wet polygonal tundra Tumatskaya Channel(3) Wet polygonal tundra Tit-Ary Island(4) Wet polygonal tundra/ Scattered alder bushes and larch thickets Belaya Skala(3,4) Dry continental slopes/ Scattered alder bushes and larch thickets Bulkurka(4) Lena River shore Sokol south(3) Dry continental slopes/ Scattered alder bushes and larch thickets TABLE 1.
It showed a preference for deep areas at the mouths of Royal Society Fiord (400-550 m; north of Bergesen Island), Clark Fiord (500-700 m), and Sam Ford Fiord (550-660 m), as well as for the continental slope (500-1000 m) east of Home Bay and Kangeeak Point, all of which are deeper than the shallow ([less than]200 m) banks on the continental shelf (Figs.
Overall, if large male Dover sole undertake seasonal movements less frequently than females, their growth rates may be expected to be less heterogeneous than those of females that move from the continental slope to the more productive waters of the continental shelf during spring.

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