CCCD Plate Tectonics
CCCD-Conservative, Colllision, Constructive and Destructive
- Created by: Melody14
- Created on: 14-10-15 21:24
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- CCCD
- Constructive
- divergent plate margin
- two plates move apart
- magma rises to fill the gap between the two plates that have moved apart
- the magma dries and becomes new crust
- Destructive
- convergent/ tensional plate margin
- oceanic and continental crust move together
- oceanic plate is forced under continental plate (lighter)
- friction causes oceanic plate to melt-may trigger earthquakes
- magma rises through the cracks and erupts to the surface
- Collision
- two continental plates collide
- neither is forced down
- they are both pushed upwards
- creates fold mountains
- Conservative
- transform plate margin
- plates slide past each other in different directions
- or in the same direction but at a different speed
- friction is eventually overcome
- sudden movement causes earthquake
- e.g. San Andreas Fault
- Constructive
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