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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.
Continental and Oceanic Crust? Oceanic and continental crust are made up of different rocks (granite and basalt). Is the fact that the continental crust is thicker than the oceanic crust the only reason why the oceanic crust has water on it and the continental crust is the land we live on? Also, these crusts both sit on top of tectonic...