Tectonic landscaped

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  • Created by: abimoo
  • Created on: 13-06-15 11:17
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  • Tectonic Landscapes
    • Earthquakes
      • Narrow bands in the middle of oceans
      • Along plate boundaries
    • Plates
      • Move because of convection currents in the mantle
      • Earths crust divides to form tectonic plates
      • Moves in direction depending on the type of plate.
    • Volcano's
      • Narrow bands
      • Middle of oceans
      • Edges of plate boundaries
      • Earthquakes
        • Narrow bands in the middle of oceans
        • Along plate boundaries
    • Convergent
      • Very violent volcanos and earthquakes
      • Move together and collide
      • Subduction orrors when oceanic and continental collide because oceanic is dencer.
      • Fold mountains if they push up
    • Measuring Earthquakes
      • Richter scale
        • Measures energy released
        • No upper limit
        • Seismometer used
      • Mercalli scale
        • 1-12 in roman numerals
        • Measures effect and damage
      • Epicentre is above focus
        • Focus is the central point where the earthquakes happens
    • Divergent
      • Mid-atlantic ridge
      • Plates move apart
      • New sea floor created as magma rises
      • Less violent earthquakes and volcanos occur.
    • Conservative
      • Slide past each other
      • No volcanos
      • Very violent earthquakes due to an increase in pressure
    • Bam earthquake 2003
      • 50,000 injured
      • 30,000 people died
      • 100,000 homeless
      • Blind slip fault
    • Hot spots
      • Volcanos only form in the middle of plates when hotspots happen.
      • Forms chains of volcanos when plates move
      • Occor under sea where crust is week and lava can escape
      • Hawaii and Lanzarote

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