Learning Objectives                                                                                                       G 101/201

Weeks 10:  Metamorphic rocks                                                                                     

1)  What is solid state transformation and how does this concept relate to metamorphic rocks?

2)  What is a polymorphic transition?

3)  What is recombination?

4)  The three “agents” of metamorphism are heat, fluid and pressure. Be able to explain what role each play in the process of metamorphism

5)  What are two sources of heat that drive metamorphism?

6)  Where do the fluids come from during the metamorphic processes?

7)  What is foliation and what is the relationship between foliation and pressure?

8)  What are strain ellipsoids and boudins and what type of stress creates these features?

9)  What is contact metamorphism, what environment does it occur in and what is a hornsfel?

10)  What is hydrothermal metamorphism, what environment is it associated with and what type of deposits does it form?

11)  Where does burial metamorphism primarily occur and what rock is associated with it?

12)  What is dynamic metamorphism?

13)  What is a mylonite and how can they be used to tell fault motion?

14)  Explain what regional metamorphism is, where it occurs and the “zones” of metamorphism associated with it.

15)  What is a tektite?

16)  What is meant by metamorphic grade?

17)  Be able to list the following rocks in order of grade relative to each other.

            Slate, phyllite, schist, gneiss, migmatite

18)  What is a migmatite?

19)  What are index minerals and why are they important?

20)  What are metamorphic facies (you don’t need to be able to list them but you should understand the concept of them)?