mantle convection
Explanation:
The mechanism that drives plate tectonics as proposed by scientists the mantle convection. The mantle convection is a very slow heat transfer process.
- It is believed that convection cells are located in the region of the mantle in which materials interact.
- The mantle is made up of a part called the asthenosphere which is weak and moves slowly.
- The lithosphere above is brittle and rigid and cold.
- The cold lithosphere sinks into the mantle and the asthenosphere that is lighter and more buoyant rises to the surface.
- This process provides the thermal energy that drives plates.
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