How Did the Layers of the Grand Canyon Form?
ES2906  Faulting, Metamorphosis, and Erosion

 !  Click the Grand Canyon Supergroup on the diagram to see what happened to the rocks after they were deposited. Move your cursor over the photograph to highlight the tilted layers of the Supergroup.

Adapted from National Park Service
5. Describe the events necessary to produce the observed rock sequence of horizontal layers on top of the tilted layers of the Grand Canyon Supergroup.

6. Is it possible to estimate how much material was eroded away? Explain your answer.

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