Geology- Metamorphism
Using separate pieces of paper, answer the following questions:
Overview of the Chapter:
1. Before reading the chapter, write down what you know about rocks changing into
different types of rocks
2. Write down 3 questions of your own that you want to know about metamorphism of
rocks.
3. Look through the chapter and find 5 figures that capture your interest, and briefly
describe each figure.
Chapter Vocabulary Words:
It is extremely crucial that you understand the meaning of various vocabulary words to gain
full comprehension of the chapter’s content. Briefly define each vocabulary term IN YOUR
OWN WORDS below.
metamorphism
phyllite
high-grade
foliation
slaty cleavage
schistosity
slate
low-grade
schist
gneiss
quartzite
marble
contact metamorphism
burial metamorphism
regional metamorphism
metamorphism
metamorphic facies
Chapter Questions:
1. How is temperature involved in metamorphism?
2. What dies the presence of vein in a rock reveal about the way the formed?
3. Why are some metamorphic rocks foliated, while others are not?
4. How do the grain sizes in a metamorphic rock change as the grade of metamorphism
increases?
5. What happens during metamorphism to produce a migmatite?
6. How can an underground magma body cause metamorphism in the surrounding rocks?
7. What rare kind of very high-pressure metamorphism happens extremely rapidly?
8. What distinguishes burial metamorphism from regional metamorphism?
9. What process changes the chemical composition of a rock, rather than just its texture or
mineral assemblage?
10. How does regional metamorphism in a subduction zone differ from regional
metamorphism in a collision zone?
11. How are index minerals used to interpret metamorphic conditions?
12. What is the metamorphic facies concept?
13. What does an isograd indicate about mineral assemblages and metamorphic conditions?
14. What temperature and pressure conditions characterize each of the following facies:
hornfles, blueschist, amphibolite, granulite?