crust features for continental oceanic
Continental crust is also less dense than oceanic crust, whose density is about 2.9 g/cm 3. Continental crust is considerably thicker than oceanic crust, mostly 25 to 70 km versus the average thickness of the oceanic crust of around 7â10 km.About 40% of Earth's surface is now overlaid by continental crust.Continental crust makes up about 70% of the volume of Earth's crust.ontinental crust is considerably thicker than oceanic crust, mostly 25 to 70 km versus the average thickness of the oceanic crust of around 7â10 km.