Metamorphic Rock - Quiz Quiz

Question 1

Assume that scientists are building a 3-D model to show how metamorphic rocks form around the magma body. Which relationship should the model emphasize?

Revolt · Accepted Answer

D: Heat and pressure interact to change solid rock by reorganizing minerals without melting.

Question 2

Which factor would most strongly determine whether the buried rock begins to respond unevenly across its interior?

Revolt · Accepted Answer

A: differences in how far heat can reach across the rock from one side

Question 3

Imagine that the magma chamber slowly cooled and hardened while the weight of the overlying rock layers stayed the same. What would most likely happen to the metamorphic conditions in the surrounding rock?

Revolt · Accepted Answer

A: Heat would decrease while pressure remained constant, reducing the amount of mineral change over time.

Question 4

How does the progression from sample S1 to S-4 demonstrate the relationship between mineral composition and rock structure during metamorphism?

Revolt · Accepted Answer

D: As minerals recrystallize into more stable forms, they align under pressure to create increasingly distinct foliation in the rock.

Question 5

Assume that two regions experienced the same temperature but very different pressures. How would their rock structures most likely differ?

Revolt · Accepted Answer

B: Rocks exposed to higher pressure would develop stronger foliation with aligned minerals, while rocks under lower pressure would remain massive and unlayered.

Question 6

What overall trend is observed in the data as both heat and pressure increase with depth?

Revolt · Accepted Answer

A: Minerals become larger and more stable, and rock texture shifts from fine-grained to foliated.

Question 7

Assume that a sample was collected at 12 km depth where temperature and pressure. What mineral and textural features would most likely appear?

Revolt · Accepted Answer

D: Mica and newly formed biotite with clear mineral alignment and moderate foliation.

Question 8

Why do minerals such as garnet and kyanite only appear in the deepest, hottest sample?

Revolt · Accepted Answer

B: They are stable only under extreme temperature and pressure, where atoms rearrange into new crystal structures.

Question 9

Which process at the Corven site most directly caused the observed structural and compositional change?

Revolt · Accepted Answer

B: Heat and dissolved materials from circulating fluids transferred energy into cracks, forming new mineral veins.

Question 10

Assume that a new site indicates that rocks were briefly heated by a magma pocket but experienced almost no directional pressure. What texture would most likely form?

Revolt · Accepted Answer

A: The rock would develop a nonfoliated texture with coarse, interlocking crystals formed by heat.

Metamorphic Rock - Quiz Quiz Answers

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