Chapter 8 Reading Quiz (Metamorphic
Rocks)100% Accurate!!
Identify the False statement. Hydrothermal fluids...(D) - ANSWERSA) May consist of hot water, steam,
and supercritical fluid.
B) Are chemically active solutions, not pure water
C) Can be derived from groundwater or magma, or can be the product of metamorphic reactions
D) Change a rock's chemical composition, a process known as exhumation.
Which of the following statements is False? A metamorphic rock...(B) - ANSWERSA) May develop a
texture of interlocking grains
B) Cannot be formed below 1,200C
C) May have preferred mineral orientation caused by the differential stress
D) May be composed of different minerals than its protolith.
Which is Not a common process by which metamorphic rocks are formed? (B) - ANSWERSA)
Recrystallization
B) Schistosity
C) Pressure solution
D) Plastic deformation
Normal stress... - ANSWERSis a push (compression) or pull (tension) perpendicular to a surface
Identify the False statement. Recrystalization...(A) - ANSWERSA) Changes the mineralogical composition
of the protolith
B) Occurs because thermal energy causes atoms to vibrate rapidly, breaking existing chemical bonds
C) Occurs when atoms migrate to new positions on the crystal lattice where they are more stable under
the hotter conditions
D) Changes the texture (shape and size) of the grains
Rocks)100% Accurate!!
Identify the False statement. Hydrothermal fluids...(D) - ANSWERSA) May consist of hot water, steam,
and supercritical fluid.
B) Are chemically active solutions, not pure water
C) Can be derived from groundwater or magma, or can be the product of metamorphic reactions
D) Change a rock's chemical composition, a process known as exhumation.
Which of the following statements is False? A metamorphic rock...(B) - ANSWERSA) May develop a
texture of interlocking grains
B) Cannot be formed below 1,200C
C) May have preferred mineral orientation caused by the differential stress
D) May be composed of different minerals than its protolith.
Which is Not a common process by which metamorphic rocks are formed? (B) - ANSWERSA)
Recrystallization
B) Schistosity
C) Pressure solution
D) Plastic deformation
Normal stress... - ANSWERSis a push (compression) or pull (tension) perpendicular to a surface
Identify the False statement. Recrystalization...(A) - ANSWERSA) Changes the mineralogical composition
of the protolith
B) Occurs because thermal energy causes atoms to vibrate rapidly, breaking existing chemical bonds
C) Occurs when atoms migrate to new positions on the crystal lattice where they are more stable under
the hotter conditions
D) Changes the texture (shape and size) of the grains
