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Definition
Continents drifted to their current location (from Pangaea) |
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Who was the continental drift theory proposed by? |
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Definition
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What were problems with Wegner's theory? |
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Definition
1) No proof 2) No explanation how it happend |
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Definition
Similar plant and animal fossils found on both sides of the Atlantic Ocean |
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Definition
1) Glacial evidence in warmer climates 2) Fossils of ferns in cold climates |
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Definition
Similar rock types found on both sides of the Atlantic Ocean |
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Molten rock pushed through at mid-Atlantic ridge |
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Who proposed seafloor spreading? |
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Definition
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What was some proof of seafloor spreading? |
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Definition
1) Newer rocks near mid-Atlantic ridge 2) Magnetic clues in rocks |
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Term
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Definition
Crustal sections (plates) move around on mantle |
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Two continental (less dense) plates collide- Forms mountains |
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Definition
Denser oceanic plate goes under less dense continental plate |
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Definition
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Two oceanic plates move apart |
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Definition
Two continental plates move apart |
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Definition
Plates slide by each other |
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Term
An example of a transform boundary is? |
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Definition
San Andreas fault (California) |
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