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7 Written questions

6 Multiple choice questions

  1. lava
  2. oceanic
  3. ridges
  4. silicic and mafic
  5. plates moving away from eachother
  6. magnetic differentiation

6 True/False questions

  1. What is silicic magma/lava?>50% SiO2, gooey, highly viscous, becomes explosive, convergent system associated with continental crust formation.


  2. Caldera formation from collapsed craters are like?magnetic differentiation


  3. What is intrusive?magma


  4. Igneous rocks distribution?Canadian Shield, Rocky Mtns, Appalachian Mtns, Central TX


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


  6. Igneous rocks form by the?solidification of magma or lava