Continental shelf
The submerged, gently sloping edge of a continent extending from the shoreline to the continental slope. It is usually shallower than the adjacent continental slope and varies greatly in width.
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Continental crustBroader topic: It is a submerged part of the continental margin, not oceanic crust.
Atlantic OceanRelated: Shelves border much of the Atlantic and support productive coastal seas.
East China SeaNarrower topic: A broad shelf makes much of the East China Sea unusually shallow.
OceanBroader topic: It marks the shallow underwater margin where continents meet ocean basins.