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Over the Edge: Continental Margins
The continental margin is the submerged outer edge of a continent. Comprised of granitic crust, the continental margin includes the continental shelf and continental slope.
00:56
Over the Edge: Submarine Canyons
A submarine canyon is a steep, V-shaped valley that cuts across the edge of the continental shelf and slope. It acts as a funnel, carrying sediment down to the abyssal plain.