Plate boundaries
- Created by: Anya
- Created on: 07-05-14 19:31
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- Plate boundaries
- Constructive
- Two plates moving apart from eachother
- Convection currents move in opposite directions
- Cracks form and magma escapes
- Magma fills gaps and cools to form new land
- Can result in both volcanoes and earthquakes
- Magma fills gaps and cools to form new land
- Cracks form and magma escapes
- Destructive
- Two plates move together
- Oceanic plate is pushed towards continental by convection currents
- Oceanic sinks due to it being denser
- Plate melts as it descends
- Magma gets through cracks
- Forms ocean trenches, mountains and volcanoes
- Magma gets through cracks
- Plate melts as it descends
- Oceanic sinks due to it being denser
- Conservative
- Two plates slide in opposite directions
- Stress builds as plates snag and grind
- Stress is released and causes earthquakes
- Constructive
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