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7 Written Questions

6 Multiple Choice Questions

  1. ridges
  2. subduction, convergent
  3. solidification of magma or lava
  4. Canadian Shield, Rocky Mtns, Appalachian Mtns, Central TX
  5. plates moving away from eachother
  6. magma

6 True/False Questions

  1. When solidified, magma chamber becomes a __ composed of granite and/or diorite.cracks


  2. Shield volcanoes due to extensive outpouring of __/basaltic lava with little pyroclastic material.eruptions, lava


  3. Importance of igneous rocks?building materials, ores


  4. Igneous rocks compose __% of basement rock. 85% is metamorphic.15


  5. what is convergent?plates moving away from eachother


  6. What are the two types of magma/lava?>50% SiO2, gooey, highly viscous, becomes explosive, convergent system associated with continental crust formation.


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