What parts does the submarine edge of the continents consist of?

The continents rise on lithospheric or continental plates that are much thicker than the ocean’s crust. And this part, which is located between the coast and the bottom of the ocean, is usually divided into several parts. The first and shallowest shelf zone. On average, the depth of this zone does not exceed two hundred meters. Then comes the continental slope, which goes under water at a steep angle (up to 3-4 thousand meters). And the mainland ends under water with a foot, which smoothly turns into an oceanic bed.