Term
| Who proposed the continental drift |
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Definition
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Term
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Definition
| similar plants and animal fossils were found on both sides of the Atlantic |
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Term
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Definition
| There is glacial evidence in warmer climates, and fossils of ferns in the cold climates |
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Term
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Definition
| similar rock types found on both sides of the Atlantic |
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Term
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Definition
| molten rock pushed through the mid- Atlantic Ridge |
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Term
| When was seafloor spreading proposed |
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Definition
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Term
| Who proposed seafloor spreading |
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Definition
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Term
| what happens in seafloor spreading |
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Definition
| molten rock pushed through at the mid- Atlantic Ridge |
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Term
| what 3 clues helped back up the continental drift theory |
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Definition
| fossil clues, climate clues, rock clues |
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Term
| What were problems with his Continental drift theory |
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Definition
| no proof, no explanation on how it happened |
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Term
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Definition
| crustal sections or plates move around on mantle |
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Term
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Definition
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Term
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Definition
| two continents (less dense) plates collide (ex. - India and Asia) |
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Term
| what kind of physical feature does a continental collision form |
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Definition
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Term
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Definition
| denser oceanic plate goes under less dense continental plates (ex. continental coast) |
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Term
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Definition
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Term
| two oceanic plates move apart (ex. mid- Atlantic ridge) |
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Definition
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Term
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Definition
| two continental plates move apart (ex. Africa rift valley) |
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Term
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Definition
| when plates slide by each other |
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Term
| What was the explanation about the plate tectonic theory |
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Definition
| plates move by convection currents and plate boundaries are were they meet |
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