asked 59.3k views
4 votes
What conditions cause sedimentary or igneous rock to change into metamorphic rock?

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User Bmahf
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1 Answer

4 votes
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.
answered
User Just For Fun
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