Contact metamorphism
1.) is caused by high temperatures
2.) usually affects a very large area
3.)happens when mountains are formed
4.)occurs along fault lines

the answer is in this

[diagram of location where contact metamorphism occurs] contact metamorphism also happens at low pressure, but at high temperature. magma from an intrusion contacts preexisting rock. it seeps into tiny spaces and heats the rock. contact metamorphism affects a small area and forms fine-grained, non-foliated rock.