Earth's mantle may have been cooler than thought before Pangea's breakup

PHYSorg
Feb 23, 2026, 7:00 am100 pts
When the supercontinent Pangea began to fragment around 200 million years ago during the Early Jurassic, it reshaped the face of the planet. Vast new oceans opened, continents drifted apart and the familiar geography of today slowly emerged. For decades, many geoscientists have suggested that this dramatic…

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