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7 Written questions

6 Multiple choice questions

  1. solidification of magma or lava
  2. magnetic differentiation
  3. cracks
  4. silicic and mafic
  5. >50% SiO2, gooey, highly viscous, becomes explosive, convergent system associated with continental crust formation.
  6. 15

6 True/False questions

  1. Mafic rocks are generated at __ (divergent plate boundaries).ridges


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


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


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


  5. What is divergent?plates moving toward one another


  6. Mafic rocks are also generated within the __ crust.ridges