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Generally, Yes, but not necessarily.

Plateaus are generally created by an upwards thrust of the crust, pushing a flat rock bed further up than the surrounding area. The rock beds closest to the surface are usually either sedimentary rock layers (which are created by compacted sediment deposits) or sedimentary rock layers with intrusive igneous rocks. There are some plateaus that have metamorphic rock beds because the crust has been significantly eroded, warped, or overturned, but metamorphic rocks can be altered sedimentary or igneous rocks.

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9y ago

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