Practice Questions: Metamorphic Rocks (Page 2 of 4) in pdf

Practice Questions: Metamorphic Rocks Page 2

6. Base your answer to the following question on the graph below, which shows the crustal temperature and

pressure conditions under which three different minerals with the same chemical composition (Al

SiO

)

crystallize.

Under which crustal temperature and pressure conditions will andalusite form?

A) 300°C and 6000 atmospheres

B) 500°C and 2000 atmospheres

C) 600°C and 4000 atmospheres

D) 700°C and 8000 atmospheres

7. Which physical characteristic best describes the rock

10. Which rock is foliated, shows mineral alignment but

phyllite?

not banding, and contains medium-sized grains of

quartz and pyroxene?

A) glassy texture with gas pockets

A) phyllite

B) schist

B) clastic texture with angular fragments

C) gneiss

D) quartzite

C) bioclastic texture with cemented shell fragments

D) foliated texture with microscopic mica crystals

8. During the Permian Period, sedimentary bedrock in the

Appalachian Region was subjected to high temperature

and pressure. Calcite deposits that had existed in this

environment would most likely have formed

A) schist

B) gabbro

C) marble

D) gneiss

9. Which nonfoliated rock forms only in a zone of contact

metamorphism?

A) conglomerate

B) hornfels

C) pegmatite

D) quartzite

Practice Questions: Metamorphic Rocks Page 2