180 million years ago Earth's continents were amalgamated into one supercontinent called Pangaea. Analysis of oceanic crust formed since that time suggests that the cooling rate of Earth was enhanced in the wake of Pangaea's dispersal.
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Lenardic, A. A supercontinental boost. Nature Geosci 10, 4–5 (2017). https://doi.org/10.1038/ngeo2862
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DOI: https://doi.org/10.1038/ngeo2862
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