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The continental shelf and the slope are part of the continental margin. [6] The shelf area is commonly subdivided into the inner continental shelf, mid continental shelf, and outer continental shelf, [7] each with their specific geomorphology [8] [9] and marine biology. [10]
Detailed relief map of the United States continental shelf in south Alaska, including US extended continental shelf claims. In the Bering Sea, the large Bering Shelf dominates the area, stretching over 300 nautical miles from southwest mainland Alaska, at a depth of around 500 metres. [3]
Microplastic pollution is a widespread problem in the North Atlantic Ocean; in 2018, samples of pelagic fish species native to the NEUS Continental Shelf sampled from Portugal found microplastic contamination in 49% of the fish. [11] Ocean acidification is also a threat to the NEUS ecosystem, particularly organisms with carbonate shells.
The continental shelf is the relatively shallow water area found in proximity to continents; it is the portion of the continental margin that transitions from the shore out towards to ocean. Continental shelves are believed to make up 7% of the sea floor. [3] The width of continental shelves worldwide varies in the range of 0.03–1500 km. [4]
The regional geology of North America usually encompasses the geographic regions of Alaska, Canada, Greenland, the continental United States, Mexico, Central America, and the Caribbean. [1] The parts of the North American Plate that are not occupied by North American countries are usually not discussed as part of the regional geology.
Pages in category "Continental shelves of North America" The following 5 pages are in this category, out of 5 total. ... Continental shelf of the United States
Outer Continental Shelf limits greater than 200 nautical miles but less than either the 2,500-meter isobath plus 100 nmi or 350 nmi are defined by a line 60 nautical miles (111.1 km; 69.0 mi) seaward of the foot of the continental slope or by a line seaward of the foot of the continental slope connecting points where the sediment thickness ...
Extent of the Atlantic Plain Continental Shelf province as indicated by the 1928 work by Fenneman. The Atlantic Ocean has a broad, flat continental shelf that reaches a depth of 100 meters. [3] The continental shelf off the Atlantic Ocean ranges in width from less than 1 km off Florida to more than 420 km off Maine.