it is actually called continental crust
The name of the crust beneath the oceans is called "oceanic crust." It is thinner and younger than continental crust and primarily composed of basaltic rocks.
When heavier oceanic crust converges with lighter crust at a deep ocean trench, the heavier oceanic crust is usually forced under the lighter crust in a process known as subduction. This can create deep ocean trenches and volcanic arcs on the overriding plate. The subducting plate can also melt and cause volcanic activity.
The Earth's crust is thinner than the ocean floor because the oceanic crust is formed at mid-ocean ridges where heat from the mantle creates new crust through volcanic activity. This process creates younger, hotter, and thinner crust in the ocean compared to the older and thicker continental crust.
Oceanic crust is created at mid-ocean ridges and (through the creation of new oceanic crust) is pushed toward a convergent plate boundary where it is subducted. So the oldest oceanic crust would be located at a convergent plate boundary where the oceanic crust is being subducted under continental crust.
Oceanic crust
Crust under the oceans is called oceanic crust.
oceanic crust
The crust under the ocean is typically about 3 to 5 miles (5 to 8 kilometers) deep.
oceanic crust
Earth's crust is far thicker under the continents.
You would be under the Earth's crust, which is the outermost layer of the Earth. The crust is typically between 5-70 km thick beneath the continents and around 5-10 km thick beneath the ocean basins.
mountains
Oceanic crust is thinner and denser than continental crust.
Jupiter's moons - Europa and Ganymede possibly have oceans of liquid water under their crust. Saturn's moon - Enceladus also has a possible ocean of water under it's crust.
the continental crust is the plate crust formed under the continent (less density) as opposed to oceanic crustformed under the ocean(higher density)
the continental crust is the plate crust formed under the continent (less density) as opposed to oceanic crustformed under the ocean(higher density)
Because the oceanic crust is under water in the ocean and a continental crust is land such as the continents