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Panottia – Gondwana End of Proterozoic 500 my ago
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Rifting: Gondwana and Laurentia
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Taconic Island Arc moves toward Laurentia from 510 mya to 450 mya
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Alleghenian Orogeny Africa collides with Laurentia but does not subduct. Hits Greenland first, then rotates in toward eastern North America. Final collision to form the Present day Appalachians. Sediments uplifted; basement rocks folded and uplifted Iapetus Ocean closed Pangea formed
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PANGAEA - 255 million years ago Yellow = North America Green = South America Light blue = Africa Red = Eurasia Dark blue = Australia Fuchsia = Antarctica
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