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Unformatted text preview: (intermediary slope, magma type is very silicic w/ a high viscosity, alternating layers of rock and magma, eventually central vent of volcano gets capped by material and the volcano goes dormant for a time period as magma chambers reload, location is at convergent margins), large caldera (super volcanoes, caldera is huge pit that remains when composite volcano blows its top, often a lake forms on top of caldera; an example is Yellowstone where an explosion occurred 700000 years ago, 100 times greater than Mt. St. Helens)-volcanism in Western US: caused by movement of North American plate southwest over a hot spot-volcanic hazards-lava flow, ash fall, explosive blast (powerful winds), lahars (mud flows)...
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This note was uploaded on 05/13/2011 for the course GEOG 110 taught by Professor Konrad during the Spring '08 term at UNC.
- Spring '08