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Layers that are less dense, such as the crust, float on layers that are denser, such as the mantle. Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust.This is partly why the continents are at a higher elevation than the ocean floor.ayers that are less dense, such as the crust, float on layers that are denser, such as the mantle. Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust.
The density of the oceanic crust is about 3.0 g/cm3. The continental crust has a lower density. This difference in the average densities allows many natural phenomenon to occur on and below the surface of the Earth. The oceanic crust scarcely floats on the mantle.The oceanic crust undergoes a peculiar phenomenon..The oceanic crust is thinner while the continental crust is much thicker. 3.The oceanic crust is denser than the continental crust. 4.The continental crust has greater buoyancy than the oceanic crust. 5.Recycling is present in the oceanic crust while this procedure is absent in the continental crust.