Yellowstone_Caldera.svg
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Summary
| Description |
English:
"At Yellowstone and some other volcanoes, some scientists theorize that the earth's crust fractures and cracks in a concentric or ring-fracture pattern. At some point these cracks reach the magma “reservoir,” release the pressure, and the volcano explodes. The huge amount of material released causes the volcano to collapse into a huge crater—a caldera."
From nps.gov
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| Date | |
| Source | File:Yellowstone_Caldera.gif which is from http://www.nps.gov/archive/yell/tours/fountainpaint/hotspot_yell.htm |
| Author | Kbh3rd |
| Other versions |
Derivative works of this file: Yellowstone Caldera fr.svg : 
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