How Did the Layers of the Grand Canyon Form?
ES2906  Reading the Rocks

Bryan L. Aivazian
The view from the top of the Bright Angel Trail, a popular hiking trail into the canyon.
In the Grand Canyon, each rock layer can be thought of as a chapter in a book. Just as you read sequential chapters of a book to get the whole story, examining rock layers in the canyon from the oldest to the youngest will tell a story as well. The "book" offered by the Grand Canyon tells the long and surprisingly varied natural history of this part of the world.
1. What are some of the ways the sedimentary rock layers may have formed?

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