What directions do the plates move?
Opposite direction OR same at different speeds.
What causes them to move?
Convection currents, distant slab pull
Name an example
San Andreas Fault
Are there earthquakes? Why?
Yes - plates don’t pass each other smoothly, they stick, pressure builds, pressure exceeds friction, they jolt.
Is there volcanism? Why?
No - no subduction, reduction in pressure or gap
What happens at transform boundaries
Some areas in a constructive are conservative