Lesson 5: Mechanism of plate Movement

Question 1

het is transferred from the core to the crust.

Answer 1

Mantle Convection

Question 2

• the transfer of heat through a fluid motion.

Answer 2

Convection

Question 3

the lithosphere sinks to a great depth, which stirs the mantle.

Answer 3

Whole mantle convection model (plume model)

Question 4

suggests that the mantle has 2 zonesof convection.
Upper mantle’s thin layer
Thicker mantle below the upper part.

Answer 4

Layer Cake model

Question 5

the dense cold slab of the oceanic lithosphere sinks due to the pull of gravity in the mantle, eventually pulling the rest of the plate with it.

Answer 5

Slab Pull

Question 6

an elevated position of the oceanic ridge.

Answer 6

The Ridge push