Geology of Catastrophes
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4 terms
Terms | Definitions |
|---|---|
| How do we understand volcanos? | in terms of plate tectonics |
| What determines if eruptions are peaceful or explosive? | Variations in magma's chemical composition, ability to flow, gas content and volume |
| what percent of volcanism is associated with plate boundaries? | 90 - 80% spreading centers, 10% subduction zones; other 10 % at hot spots |
| cape verde type hurricanes | begin as easterlies, blow westward from trade winds, move north by coriolis in western atlantic |
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