Answer:continental and oceanic crust
Explanation:continental crust is the oldest part of the earth because it is not very active in terms of growing in size the continental crust is approximatly 4.4 billion years old then the moon was newly formed. oceanic crust is constantly renewing itself through divergent boundreis that means the crust is moving apart from one another, the oceanic crust is approximatly 260 million years old but thats the parts farthest away from any fault lines the ones parts choses to the oceanic boundreis are approximatly 200 million in terms of rock this is young compared to the oldest rock which is around 4 billion years old