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Plate Tectonics
- Plate Movement
- heat from the core causes convection currents in the mantle
- these currents slowly move the crust around
- some places crust is destroyed
- other places new crust is formed
- some places crust is destroyed
- these currents slowly move the crust around
- heat from the core causes convection currents in the mantle
- Plate Boundries
- Movement is driven by convection crusts in the mantle
- Plates are like giant rafts that slowly move around
- Earthquakes and Volcanoes are primilary found at plate boundries
- Mantle is much hotter than the crust - its rock is molten
- at the boundries between plates, molten magma is able to force its way to the surface and escape as lava
- Movement is driven by convection crusts in the mantle
- Plate Boundries
- Collision zones
- Form when two continental plates collide
- Neither plate is forced uner the other so both are forced up and form fold mountains
- Form when two continental plates collide
- Conservative plate margins
- occurs when plates slide past eachother in opposite directions or same direction at different speeds
- friction is eventually overcome + plates slip past in a sudden movement
- the shock waves created produce and earthquake
- the shock waves created produce and earthquake
- occurs when plates slide past eachother in opposite directions or same direction at different speeds
- Collision zones
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