States that, in an undisturbed succession of sedimentary rock layers, the oldest layer is at the bottom and the youngest
Posted: Mon Jul 11, 2022 2:33 pm
States that, in an undisturbed succession of sedimentary rock layers, the oldest layer is at the bottom and the youngest layer is at the top. States that sedimentary layers extend sideways in all directions until it thins and pinches out, or terminates against the edge of the depositional basin. States that an igneous intrusion must be younger than the country rock it intrudes. States that rock fragments found within a rock must be older than the rock surrounding the fragments. < > < <