Tectonics

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Across
  1. 4. large slabs of rock that divide Earth's crust
  2. 7. is a planar fracture or discontinuity in a volume of rock across
  3. 9. layer of granitic, sedimentary, and metamorphic rocks
  4. 11. upper layer of the earth's mantle
  5. 12. hundreds to thousands of miles long, that forms above a subduction zone
  6. 13. rigid outer part of the earth, consisting of the crust and upper mantle.
Down
  1. 1. largest layer of Earth's interior
  2. 2. coming closer together
  3. 3. part of the Earth's crust that makes up the seafloor
  4. 5. make a thorough or dramatic change in the form
  5. 6. a line that marks the limits of an area
  6. 8. steep depressions
  7. 10. moving or extending in different directions from a common point