Plate Margins

Constructive, Destructive and Conservative plate margins

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  • Oceanic plate collides with (meets) Continental plate
  • The Oceanic plate is denser than the continental plate so it sink under the continental plate (Subduction)
    • Creates volcanoes and Ocean Trenches
      • Trenches: very deep sections of the ocean floor where the oceanic plate goes down
      • Crust is DESTROYED
    • Creates friction which then causes earthquakes
  • PLATE MARGINS
    • Destructive
      • Where two plates are moving TOWARDS each other
      • Oceanic plate collides with (meets) Continental plate
      • The Oceanic plate is denser than the continental plate so it sink under the continental plate (Subduction)
        • Creates volcanoes and Ocean Trenches
          • Trenches: very deep sections of the ocean floor where the oceanic plate goes down
          • Crust is DESTROYED
        • Creates friction which then causes earthquakes
    • Conservative
      • Where two plates are moving PAST each other
        • OR moving the same direction but at different speeds
      • Occur close to the Earth's surface and when occur can be very destructive
      • Crust is never CREATED or DESTROYED
    • Constructive
      • Where two plates are moving AWAY from each other
        • Magma rises up from the mantle to fill the gap and cools
          • New crust is CREATED
      • Happens under the Atlantic Ocean along the Mid-Atlantic Ridge

Comments

Erinba

what about collision?

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