* Oceanic crust: Predominantly made of basalt and gabbro, which are igneous rocks formed from the cooling and solidification of magma.
* Continental crust: Made of a mix of igneous, metamorphic, and sedimentary rocks.
* Igneous rocks like granite and diorite are common.
* Metamorphic rocks like gneiss and schist are formed by the transformation of existing rocks under high pressure and heat.
* Sedimentary rocks like limestone, sandstone, and shale are formed from the accumulation and cementation of sediments.
The specific rock type found in a tectonic plate depends on its location and formation process. For example, oceanic crust is primarily composed of basalt because it is formed from volcanic eruptions at mid-ocean ridges. Continental crust is more varied because it has been subjected to a wide range of geological processes over time.
