contestada

As a geologist-in-training you observe the rock outcrop pictured above on a field trip. You notice that a lower sandstone layer is tilted at an angle of 85 degrees to the east. Immediately overlaying the sandstone is a siltstone layer that is tilted 25 degrees to the west. What can you conclude from this stratigraphic relationship?

Respuesta :

Answer:

Angular unconformity

Explanation:

An angular unconformity is the contact that separates a younger, gently dipping rock unit from older underlying rocks that are tilted or deformed layered rock. The contact is more obvious than a disconformity because the rock units are not parallel and at first appear cross‐cutting. Angular unconformities generally represent a longer time hiatus than do disconformities because the underlying rock had usually been metamorphosed, uplifted, and eroded before the upper rock unit was deposited

ACCESS MORE
ACCESS MORE
ACCESS MORE
ACCESS MORE