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How was the Grand Canyon form?

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Anonymous

13y ago
Updated: 8/16/2019

The Grand Canyon was formed by the processes of weathering and erosion.

The Colorado River and its tributaries formed the canyon as the Colorado Plateau was being geologically uplifted. The erosion occurred fairly recently, starting around 17 million years ago, but the geologic record exposed covers around 1.8 billion years. Erosion is the moving of material from one place to another. From the size of the Grand Canyon, you can see that a lot of material was moved. No one is 100% sure how all this erosion took place, but with the help of repeated periods of flooding during previous periods of glaciation, dams formed by volcanism and their eventual breach, the susceptibility of certain rock layers in the canyon to be undercut by layers below them, and the ability of the Colorado River to transport the sediments, it did occur.
Erosion
ersion

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