Ways plates move Flashcards
1
Q
3 ways that plates move
A
Convection currents
Slab pull
Ridge push
2
Q
Convection currents
A
In the mantle
Movement of particles from an area of high temp. to an area of low
Circular action from outer core to crust to outer core again
Drives movement of plates
3
Q
Slab pull
A
Only at destructive plates
Subducting plate pulls the rest of the plate with it
Frictional resistance causes earthquakes
OCCURS AT DESTRUCTIVE BOUNDARIES
4
Q
Ridge Push// Gravitational sliding
A
Upwelling of new magma pushes the middle of the ocean ridge
Slopes away from the ridge
Gravitational sliding from there
Also some frictional resistance causing earthquakes
OCCURS AT CONSTRUCTIVE BOUNDARIES