Summary:
- Plates experience stress when they collide, move apart, or slide past each other.
- There are four types of stresses that affect rocks: confining, compression, tension, or shear.
- Rocks under stress may show strain or deformation.
- Deformation can be elastic or plastic, or the rock may fracture.
- The amount of stress on a rock may be greater than the rock's strength.
- If more stress is applied to the rock, it bends and flows.
- Near the surface, if the stress continues, the rock will fracture and break.