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Panottia – Gondwana End of Proterozoic 500 my ago.

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Presentation on theme: "Panottia – Gondwana End of Proterozoic 500 my ago."— Presentation transcript:

1 Panottia – Gondwana End of Proterozoic 500 my ago

2 Rifting: Gondwana and Laurentia

3 Taconic Island Arc moves toward Laurentia from 510 mya to 450 mya

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10 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

11 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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