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chapter6 study guide - GLG111.D Study Guide Spring 2009...

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GLG111.D Study Guide Spring 2009 Chapter 6: Volcanoes and Volcanic Hazards, p. 136-167 Volcanic Landforms Volcano: is a vent where magma and other volcanic products have erupted onto the surface. Shield Volcano: have broad, gently curved slopes and can be less than a kilometer across or form huge mountains tens of kilometers wide and thousands of meters high. (largest volcano) (lava flows) (basaltic) Scoria Cones: are cone-shaped hills several hundred meters high, or higher, usually with a small crater at their summit. Emit pyroclastic material. (Cinder) (basaltic) Composite Volcano (Stratovolcano): commonly are fairly symmetrical mountains thousands of meters high and with moderately steep slopes. (pyroclastic deposits, AND volcanic mudflows) Lava Dome: dome shaped volcanoes that are hundreds of meters high. They consist of solidified lava, which can be highly fractured or intact and dense. (felsic or intermediate magma erupts and is so viscous that it piles up around a vent) many are within craters of composite volcanoes.
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  • Spring '05
  • kuentz
  • Volcano, volcanic landforms, ash Lava, volcanic ash Lava, Volcanic Landforms Volcano, Volcanic Products Pyroclastic

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