How can deformation only change a portion of a rock?

What is pressure indicator? Male reproductive system step by step? What plate boundary is turrialba volcano on? What best describes a substance that has ductility? What form is carbon in its most reduced state? What is a rat carnivore or a herbivore? Can you use a 19volt output adpater for a 12 volt output? Is the charge of a electron always equal to the charge on a neutron? What is the most important line of latitude called that circles the earth at its middle from east to west? Why do offspring that are a result of a cross of two different purebred organisms appear to have only one of the traits? How do you Make a Water Breathing Potion in minecraft 1.7.2? Do victims struck by lightning carry an electrical charge and should not be touched? Is a dead animal living or nonliving? What countries are not located along the equator Paraguay Angola Kenya Indonesia japan? Who does the best rug cleaning? What could you do to demagnetize a permanent magnet? What founding father had red hair? How would the view on the spheroidal of the earth change if the north star was extremely far away What about a Few thousand miles away? Is it possible for the eardrum to disintegrate? What are important facts about the dark tide by Stephen puleo?

How can deformation only change a portion of a rock?