plate boundarys

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  • Created by: egreen01
  • Created on: 16-10-15 10:20
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  • plate boundary
    • destructive
      • oceanic plate is sub ducted under the continental plate
      • oceanic is thinner and denser, continental plate is lighter and thicker
      • convection currents in mantle move them
      • tension is made a sudden movement sends out shock waves
      • this causes an earthquake
    • conservative
      • plates move past each other but at different speeds
      • they sang and tension builds up
      • a sudden movement sends out shockwaves
      • causes an earthquake e.g. San Andreas Fault
    • constructive
      • plates move away from each other
      • magma rises in the middle
      • a sudden movement sends our shockwaves
      • causes an earthquake

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