ERSC181-Week 5 Exam Questions and Correct Answers Latest Update 2024 (Graded A+)
The result of differential stress (pressure) on rocks can - Answers cause mineral crystals to align parallel to each other.
The core of a mountain range that formed during regional metamorphism would contain a _____ ...
The result of differential stress (pressure) on rocks can - Answers cause mineral crystals to align parallel
to each other.
The core of a mountain range that formed during regional metamorphism would contain a _____
metamorphic facies - Answers high-grade
Which metamorphic facies is associated with subduction zones?
Question 3 options - Answers lawsonite-blueschist
A foliated texture means what? - Answers layers or banding.
Which of the following is true of metamorphic rocks? - Answers They form as a result of intense heat
and pressure.
What are the textures of metamorphic rocks? - Answers foliated or nonfoliated
Heat promotes recrystallization by - Answers increasing atomic vibration
The parent rock of a metamorphic rock is what? - Answers The rock before it was subjected to
metamorphism.
Which type of metamorphism is responsible for the greatest amount of deformation? - Answers regional
At what temperature does diagenesis end and metamorphism begin? - Answers 200 degrees Celsius
What are the three agents of metamorphism? - Answers temperature, pressure, and chemically reactive
fluids
Tension stress is primarily associated with which type of faults? - Answers normal
If a rock layer has a dip of 90 degrees, how is that rock layer oriented relative to a horizontal plane. -
Answers Vertical (perpendicular to level ground)
Imagine you are making a pizza, you start off with the dough for the crust in a large ball. You then begin
to roll out the pizza dough with a roller. The result is flattened out dough. In this scenario, what
simulates the STRAIN found in some rocks - Answers NOT the shape of the dough grains
If you snap a green stick into two pieces, it will first undergo __________ deformation, then __________
deformation. - Answers Elastic; Brittle
What type of fault results from compression? - Answers reverse
Imagine you are making a pizza, you start off with the dough for the crust in a large ball. You then begin
to roll out the pizza dough with a roller. The result is flattened out dough. In this scenario, what
simulates the STRESS that can be applied to rocks? - Answers the force exerted on the dough
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