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The rocks in the Grand Canyon record a ______ portion of geologic time, as there are multiple unconformities and the oldest rocks are 1.7 billion years old.

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The rock located in Grand Canyon recorded a small portion of geologic time, due to multiple unconformities.

What is the type of rock that can be seen in the Grand Canyon?

The Grand Canyon presents one of the most amazing geologic narratives on the planet. The Grand Canyon layer is made of mostly sand and mudstone in the middle, some volcanic rock, and does not contain many fossils.

There are obvious horizontal strata of various rocks in the Grand Canyon that reveal evidence and clues on where, when, and how the rocks were being deposited prior to the canyon was even formed. Thus, this emphasizes how the rock located in Grand Canyon recorded a small portion of geologic time, due to multiple unconformities.

Learn more about rocks here:

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