Plate Boundaries
- Created by: misterhutson
- Created on: 05-03-17 14:33
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- Plate Tectonics
- Plate boundaries
- Constructive Plate Boundary
- Plates moving apart
- Both plates oceanic crust
- Magma rises to the surface through the vent
- Forms shield volcanoes
- Wide base and flat
- Made up of lava (basalt)
- Single vent
- Destructive Plate Boundary
- Plates moving together
- More dense oceanic plate moves beneath less dense continental plate
- Oceanic plate melts in the subduction zone
- Hot magma rises to the surface
- Increase in pressure
- Forms composite volcanoes
- Steep sides and narrow base
- Made up of layers of lava and ash
- Explosive
- Has a main vent and secondary vents
- Forms composite volcanoes
- Increase in pressure
- Hot magma rises to the surface
- Oceanic plate melts in the subduction zone
- Oceanic plate melts in the subduction zone
- Hot magma rises to the surface
- Increase in pressure
- Forms composite volcanoes
- Steep sides and narrow base
- Made up of layers of lava and ash
- Explosive
- Has a main vent and secondary vents
- Forms composite volcanoes
- Increase in pressure
- Hot magma rises to the surface
- Tsunamis
- Continental plates rises suddenly during earthquake
- Plate displaces the water forming a large wave
- Continental plates rises suddenly during earthquake
- Conservative Plate Boundary
- Plates slide past each other in opposite directions or in the same direction as different speeds
- Causes destructive earthquakes
- Friction between plates when they move
- Build up of tension
- Sudden release of tension/jerk causes earthquake
- Build up of tension
- Friction between plates when they move
- Causes destructive earthquakes
- Plates slide past each other in opposite directions or in the same direction as different speeds
- Constructive Plate Boundary
- Plate boundaries
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