Term
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Definition
| theory that continents drifted to current location from Pangaea |
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Term
| Who proposed the theory of continental drift and when? |
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Definition
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Term
| What were the problems with Wegener's theory? |
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Definition
| There was no proof and no explanation. |
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Term
| Proof of continental drift |
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Definition
| fossil clues, climate clues and rock clues |
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Term
| Proof of continental drift using fossil clues |
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Definition
| similar plant and animal fossils found on both sides of the Atlantic Ocean |
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Term
| Proof of continental drift using climate clues |
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Definition
| glacial evidence in warmer climates and fossils of ferns in cold climates |
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Term
| Proof of continental drift using rock clues |
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Definition
| similar rock types found on both sides of the Atlantic Ocean |
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Term
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Definition
| molten rock pushed though at mid-Atlantic Ridge |
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Term
| Who proposed the theory of seafloor spreading and when? |
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Definition
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Term
| proof of seafloor spreading |
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Definition
| newer rocks are closer to the mid-Atlantic ridge and the magnetic clues in rocks |
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Term
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Definition
| crustal sections (plates) move around on the mantle |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| convergent, divergent, transform |
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Term
| Two types of convergent boundaries |
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Definition
| continental collision and subduction |
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Term
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Definition
| two continental (less dense) plates collide (e.x- India and Asia) |
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Term
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Definition
| denser oceanic plate goes under a less dense continental plate (e.x- California plate) |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| two oceanic plates move apart (e.x- mid Atlantic ridge) |
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Term
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Definition
| two continental plates move apart (e.x- Eastern rift valley) |
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Term
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Definition
| plates slide by each other |
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Term
| example of transform boundary |
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Definition
| San Andreas fault- California |
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