GEOL 101 CHAPTER 8 EXAM
QUESTIONS WITH COMPLETE
SOLUTIONS
What do we call a metamorphic rock that has microscopic to very fine-grained texture,
breaks into slabs or sheets and is dull on the surface? - Answer- Slate
What do we call a metamorphic rock that has a coarse-grained texture, is dominated by
mica, and contains no other notable minerals? - Answer- Mica schist
What do we call a metamorphic rock that has coarse-grained texture, minimal amounts
of mica, and contains minerals that are segregated into bands? - Answer- Gneiss
Working in the field, you encounter a metamorphic rock that lacks foliation and reacts to
hydrochloric acid. How should this rock be classified? - Answer- Marble
Working in the field, you encounter a metamorphic rock that lacks foliation and is
composed primarily of interlocking sand-sized grains that will scratch glass. How should
this rock be classified? - Answer- Quartzite
Which of the following factors describe the metamorphic conditions at a mid-ocean
ridge? - Answer- -low temperature
-low pressure
-hot, watery fluids
Which of the following factors describe the metamorphic conditions in a subduction
zone? - Answer- -low temperature
-high pressure
Which of the following is a metamorphic rock? - Answer- Gneiss
Which of the following is a temperature associated with metamorphism? - Answer- 400
degrees Celsius
Which of the following metamorphic rocks could have a parent rock(protolith) of shale? -
Answer- -gneiss
-slate
-phyllite
-schist
QUESTIONS WITH COMPLETE
SOLUTIONS
What do we call a metamorphic rock that has microscopic to very fine-grained texture,
breaks into slabs or sheets and is dull on the surface? - Answer- Slate
What do we call a metamorphic rock that has a coarse-grained texture, is dominated by
mica, and contains no other notable minerals? - Answer- Mica schist
What do we call a metamorphic rock that has coarse-grained texture, minimal amounts
of mica, and contains minerals that are segregated into bands? - Answer- Gneiss
Working in the field, you encounter a metamorphic rock that lacks foliation and reacts to
hydrochloric acid. How should this rock be classified? - Answer- Marble
Working in the field, you encounter a metamorphic rock that lacks foliation and is
composed primarily of interlocking sand-sized grains that will scratch glass. How should
this rock be classified? - Answer- Quartzite
Which of the following factors describe the metamorphic conditions at a mid-ocean
ridge? - Answer- -low temperature
-low pressure
-hot, watery fluids
Which of the following factors describe the metamorphic conditions in a subduction
zone? - Answer- -low temperature
-high pressure
Which of the following is a metamorphic rock? - Answer- Gneiss
Which of the following is a temperature associated with metamorphism? - Answer- 400
degrees Celsius
Which of the following metamorphic rocks could have a parent rock(protolith) of shale? -
Answer- -gneiss
-slate
-phyllite
-schist
