Question

3. Describe the process of formation of metamorphic rocks with examples.


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Answer 1

Answer:

Metamorphic rocks are created by the physical or chemical alteration by heat and pressure of an existing igneous or sedimentary material into a denser form. ... As the Earth's plates move over geologic time, a plate containing igneous or sedimentary rock may become subducted under another plate.

Answer 2

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Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock. The parent rock can be either sedimentary, igneous, or even another metamorphic rock. The word "metamorphic" comes from Greek and means "To Change Form".