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7 Written Questions

6 Multiple Choice Questions

  1. solidification of magma or lava
  2. Canadian Shield, Rocky Mtns, Appalachian Mtns, Central TX
  3. batholith
  4. <50% SiO2, very fluid, non-explosive, quiet, low viscosity, divergent associated with oceanic crust.
  5. mafic
  6. ridges

6 True/False Questions

  1. what is convergent?plates moving toward one another


  2. What is extrusive?lava


  3. Mafic rocks are also generated within the __ crust.oceanic


  4. Silicic rocks are generated with __ zones at __ plate boundaries as magma chambers.subduction, convergent


  5. Caldera formation from collapsed craters are like?cracks


  6. Stratovolcanoes form by alternating __ of pyroclastic material (ash) and thick __ flows.eruptions, lava


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