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Rockhound. Oceanic crust is predominately made of basaltic rock with a thin layer of sedimentary rock on top. Continental crust is predominately made of granitic rock, with a thin layer of sedimentary rock covering much of the visible surface. Best Pre-made Pizza Crust Brands While homemade pizza crust is always best, it is not always the easiest or most practical option for your busy life. 2  If you do not want to spend tons of time kneading dough aâ¦. 3  Easy Vegan Desserts Following a vegan lifestyle does not mean you have to deprive yourself of sweets.
The continental crust is made mostly of rocks with a composition similar to granite (a light-colored rock you would expect to find in the Sierra Nevada), whereas the oceanic crust is made mostly of rocks with a composition of basalt (a dark-colored rock, like the rocks that make up the Hawaiian volcanoes).oth 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.