2. Plate movements is a
scientific theory describing
the large-scale motion of
seven large plates and the
movements of a larger
number of smaller plates of
3. Due to the extreme
temperatures inside the Earth,
hot magma rises from the
mantle at mid-ocean ridgesus
pushing the plates apart.
As a result,earthquakes occur
along the fractures that appear
5. 1. THERMAL CONVECTION
produced by the heat from the Earth’s
Interior causing currents of hot rising
magma and cooler sinking magma to flow,
moving plates of the crust along with them
6.
7.
8. 2. Ridge push
gravitational sliding or sliding plate
force.This is a proposed driving force for
plate motion in plate tectonics that occurs
at mid-ocean ridges as the result of the
rigid lithosphere sliding down the hot ,
raised asthenosphere below mid-ocean
ridges
9.
10.
11. 3. Slab pull
driving force caused by subduction.
Plate motion is partly driven by the weight
of cold, dense plates sinking into the
mantle at oceanic trenches. This force and
slab suction account for almost all of the
force driving plate tectonics.
