The Earth's crust has two main types: oceanic crust and continental crust. Continental crust is thicker than oceanic crust. Oceanic crust is typically around 5 kilometers thick, while continental crust can reach up to 50 kilometers thick.
- The thickness of the crust can vary based on its location and tectonic activity.
- Continental crust is composed primarily of granite, which is less dense than the basalt that makes up oceanic crust.
