The Appalachian Mountains of the eastern United States and Canada contain outcrops of a lot of metamorphic rocks

These mountains are the result of a convergent plate boundary off eastern North America during the Paleozoic Era (542 to 251 million years ago). Based on this information, you could hypothesize that the metamorphic rocks in the Appalachians were formed by:
a. contact metamorphism
b. hydrothermal metamorphism
c. regional metamorphism


C

Environmental & Atmospheric Sciences

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Fill in the blank(s) with correct word

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What will be an ideal response?

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