Plate Boundaries Flashcards
Constructive plate movements
Also known as divergent
Plates move away from each other
Can be broken by transform faults and move sideways
Hazards found at constructive plate margin
Volcanoes
Gentle earthquakes
Extreme earthquakes at transform faults
Landforms found at constructive plate margin
Mountain chains
Rift valleys
Black smokers
Example of constructive plate margin:
Mid Atlantic Ridge
Destructive plate movements (both)
Oceanic subducts under continental -> continental crust melts
Or
2 x Oceanic crusts meet to create ocean trench
Hazards found at destructive plate margin
Volcanoes
Huge earthquakes
Landforms found at destructive plate margin
Ocean trenches form
Magma plutons
Fold mountains
Example of destructive plate margin
Andes Mountain Range (South America)
Conservative plate movement
Also known as transform fault
Plates slide past each other
Hazards found at conservative plate margin
No volcanoes
Huge earthquakes
Landforms found at conservative plate margin
No major landforms
Looks like giant tear in the ground
Example of conservative plate margin
San Andreas (Pacific & North American)
Collision Zone movement
2 of the same plate move towards each other
No subduction
Hazards found at collision zones
No volcanoes
Huge earthquakes
Landforms at collision zone
Fold mountains (land crumples together and folds upwards)
