Term
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Definition
| continents drifted to current location (from Pangaea) |
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Term
| Who proposed continental drift |
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Definition
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Term
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Definition
| 1. no proof 2. no explanation |
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Term
| proof for continental drift |
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Definition
| 1. fossil clues- similar plant and animals, fossils found on both sides. 2. climate clues- glacial in warmer climates. 3. Fossils of ferns in cold climates. 4. Rock clues similar rocks types found on both sides of the Atlantic ocean. |
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Term
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Definition
| molten rock pushed thru mid- Atlantic ridge |
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Term
| Who proposed sea floor spreading |
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Definition
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Term
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Definition
| There were newer rocks near mid ocean ridge and magnetic clues in those rocks. |
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Term
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Definition
| crustal sections (plates) move around on mantle |
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Term
| How many plates are there |
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Definition
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Term
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Definition
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Term
| Types of plate boundaries are |
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Definition
| convergent, continental collision, Subduction, Divergent, Seafloor spreading, Rift Valley, and Transform plates. |
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Term
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Definition
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Term
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Definition
| two continental drifts less dense collide. Example India, Asia form mountains |
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Term
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Definition
denser oceanic plate goes under less dense continental plate.
Example California coast |
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Term
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Definition
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Term
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Definition
| 2 oceanic plates move apart. Example Mid Atlantic Ridge |
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Term
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Definition
| plates that slide by each other. Example San Andreas fault California. |
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Term
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Definition
| divergent boundary of two continental plates. |
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