Why Earth has a supercontinent cycle

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It’s been estimated that in all of Earth’s history, there have been 7 supercontinents, with the most recent one being Pangaea.

The next supercontinent (Pangaea Ultima) is expected to form in around 250 million years.

Why is this the case? What phenomenon causes these giant landmasses to coalesce, break apart, then coalesce again?

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23 Answers

Anonymous 0 Comments

Well, the first ever supercontinent was considered one by default because it was the only continent

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