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| continents drift to current location (from Pangaea) Proposed by Wagener (1912) Problems 1) no proof 2) no explanation how it happened. |
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| similar plants and animals fossils found on both sides of the Atlnatic Ocean |
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a) glacial evidence in warmer climates
b) fossils of ferns in cold climates |
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| similar rock types found on both sides of the Atlantic Ocean |
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| molten rock pushed thru at mid-Altantic Ridge proposed by Hess (1960's) proof 1) newer rocks near mid Atlantic ridge 2) magnetic clues in rocks |
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