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7 Written questions

6 Multiple choice questions

  1. batholith
  2. cracks
  3. subduction, convergent
  4. mafic
  5. ridges
  6. >50% SiO2, gooey, highly viscous, becomes explosive, convergent system associated with continental crust formation.

6 True/False questions

  1. What is divergent?plates moving toward one another

          

  2. Igneous rocks distribution?solidification of magma or lava

          

  3. What is mafic lava/magma?<50% SiO2, very fluid, non-explosive, quiet, low viscosity, divergent associated with oceanic crust.

          

  4. Importance of igneous rocks?building materials, ores

          

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

          

  6. Igneous rocks compose __% of basement rock. 85% is metamorphic.solidification of magma or lava