The Theory of Continental Drift suggests that a supercontinent named Pangea once existed.  This continent broke apart into smaller continents where they drifted to their present locations.  There is evidence supporting this hypothesis including Fossils, Paleomagnitism, Rock Structures and the Fit of South America and Africa.


Evidence

Fossils- Similar fossilized remains found on the different continents must have had some sort of land bridge in order to be placed there.

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Paleomagnitism- When some rocks, like magnetite, melt and then cool below their Curie point, (~580�C) they become magnetized in the direction of the poles.  Then at the present they continued to point in the direction of where the poles were, showing that the continents had shifted.


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Rock Structures- The Appalachian Mountains end on eastern North America and continue on to the British Isles; they match in structure and age.

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South America and Africa- There are similarities in the coastlines on opposite sides of the Atlantic. The continental shelves of South America and Africa fit together.

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