HKDSE Geography/M1/Plate Boundaries

The narrow zone between two adjacent plates is called a plate boundary.

Three Types of Plate Boundaries

Let's review the three types:

	Constructive/divergent plate boundaries	Destructive/convergent plate boundaries	Conservative plate boundaries
Convection currents which are	Rising/Diverging	Sinking/Converging	/
cause plates to	Diverge from each other	Converge/collide into each other	Slide past each other
and create	Tensional force	Compressional force	Shear/lateral force

This diagram shows the three types of boundaries (transform plate boundaries = conservative plate boundaries, but that term is not accepted in Hong Kong):

The World's Plate Boundaries

This diagram shows all of the earth's plate boundaries:

You should be able to identify the boundary types by looking at the directions of the arrows, which indicate compression, tension or lateral force.