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13 Cards in this Set
- Front
- Back
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Who is Alfred Wegener? |
He hypothesized continental drift and Pangea. |
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What is the super continent we believe to have existed called? |
Pangea |
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Where does sea floor spreading occur? |
Mid-ocean ridges |
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what happens at deep ocean trenches? |
subduction. |
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What is a divergent boundary? |
A boundary where plates move away from each other |
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What is a convergent boundary? |
A boundary where plates move towards each other. |
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What is a transform boundary? |
A boundary where the plates slide against each other. |
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What is the theory or plate tectonics? |
The Theory says plates are in constant motion, driven by the convection current |
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What are plate boundaries called? |
Faults |
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What do faults create as they move? |
Volcanoes, Mountain Ranges, & Deep Ocean Trenches. |
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What is a rift valley? |
mid-ocean ridges that rise above sea level. |
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Where do most volcanoes form? |
Convergent boundaries. |
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Where do most earthquakes happen, and why? |
Transform boundaries because when they slide against each other it makes seismic waves. |
