1.2B Flashcards
1
Q
What is Sea Floor Spreading?
A
This is a continuous input of magma forming convection currents which spread the plates apart from each other. It occurs at divergent plate boundaries under the oceans and forms mid-ocean ridges.
2
Q
What is Slab Pull?
A
This is the pulling force exerted by the denser oceanic plate plunging into the mantle due to its weight.
3
Q
What is Ridge Push?
A
Ridge push is the result of gravitational forces acting on the young, raised oceanic lithosphere around mid-ocean ridges, causing it to slide down the similarly raised but weaker asthenosphere and push on lithospheric material farther from the ridges.
