How Did the Layers of the Grand Canyon Form?
ES2906  Deposition of the Grand Canyon Supergroup

A thick group of rocks known as the Grand Canyon Supergroup was deposited on top of the schist and granite. Though the group includes several rock types, it is considered as a single unit that experienced a similar history following deposition.

  !   Click the Grand Canyon Supergroup in the diagram to see the steps that resulted in formation of the rocks.

Adapted from National Park Service

 


 Step:   1   2   3   4   5   6   7   8   9   10   11   12