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The Tectonic Cycle

  1. The internal structure of the earth
    • Crust. Mantle. Outer core. Inner core.
    • Crust:
    • Solid rock
    • Mantle:
    • Molten and semi-molten rock
    • Outer Core:
    • Mainly iron, molten state
    • Inner Core:
    • Iron and nickel, solid state 5000+c
  2. Continental crust?
    • Thick
    • 30-70km thick
    • Silica and granite SIAL
  3. Oceanic crust?
    • Thinner than continental
    • 3-10km thick
    • Heavy rocks eg basalt
    • Silica and magnesium SIMA
Author
Anonymous
ID
252986
Card Set
The Tectonic Cycle
Description
Geography notes
Updated

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