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Which geologic event was responsible for adding the Grenville Province to North America approximately 1.2 billion years ago?

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The formation of Rodinia was the geologic event responsible for adding the Grenville Province to North America approximately 1.2 billion years ago. Rodinia is the name given to a super continent that contained all the Earth's landmass at one point in history. It was formed around 1.2 billion years ago, and broke up 750 millions years ago.

User Kevinoid
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