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continents drift to current location (Pangaea)Proposed by Wegener (1912)Problems with theory 1) no proof 2)no explanation how it happened |
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Proof of continental drift |
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Fossil clues- similar plant and animal fossils found on both sides of the Atlantic ocean Climate clues- glacial evidence in warmer climates fossils of ferns in cold climates. |
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similar plant animal fossils at both sides of the Atlantic ocean |
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molten rock pushed through the mid-Atlantic ridge. proposed by Hess (1960s) proof new rocks near mid-Atlantic ridge magnetic clues |
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