Vocabulary Terms

You should be able to define the following terms.
 

Foliation	Primary Foliation	Secondary Foliation	Slaty cleavage
Phyllitic structure	Schistosity	Gneissic Structure	Mylonitic foliations
Lineation	Mylonite series	Boudins	Tectonites
Pencil Structure	Mullion	Rodding	Comminution

Concepts

You should be able to give short answers to the following questions:

1.) Describe the difference between primary and secondary foliations and list a few example of each type.

2.) Describe the difference between primary and secondary lineations and list a few example of each type.

3.) Define the three types of lineation and list a few examples of each.

4.) Recognize and identify the basic types of foliation and lineation in hand sample of rocks.

5.) Describe the basic characteristics of rocks of the mylonite series.

6.) Describe the basic characteristics of S-, L-, and LS-Tectonites. What is the strain significance of these rock types?

7.) Describe the basic components and fields of the logarithmic Flinn Diagram (Fig. 8.82, 8.84, 8.85)

8.) Describe the "competition" between grain growth via recrystallization and grain size reduction in determining the final fabric of a rock. (pp. 485-487) What can rock fabrics tell us about the tectonic evolution of the Earth?