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HW#17: Metamorphic Rocks

Instructions: Answer the questions below using one to five sentences.

 

7.  Briefly describe three ways in which the mineral grains in a rock develop a preferred orientation (that is, foliation).

 

8.  Distinguish among slaty cleavage, schistosity, and gneissic textures.

 

9.  What is meant by nonfoliated texture? Name one rock that exhibits this texture.

 

10.  Describe slate, phyllite, schist, and gneiss in terms of texture and grain size.

 

11.  Compare and contrast marble and quartzite.

 

12.  In which type of metamorphism does compressional stress play a major role?