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Metamorphic rock

Metamorphic rock is the result of the transformation of a pre-existing rock type, the protolith, in a process called metamorphism, which means "change in form".

Note:The above text is excerpted from the Wikipedia article "Metamorphic rock", which has been released under theGNU Free Documentation License.

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Earth & Climate News

August 16, 2023

China's Oldest Water Pipes Were a Communal Effort

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