Lecture 5 Flashcards
1
Q
What is the name used to refer to a rock before it undergoes metamorphism?
A
Protolith.
2
Q
What is the name of the type of rock that was a mix of metamorphic and igneous parts?
A
Migmatites.
3
Q
What are the agents of metamorphism?
A
Temperature and pressure/stress
4
Q
Strain is a result of stress
A
True
5
Q
What is lithostatic stress?
A
Stress that is caused by overlying layers of rock.
6
Q
What is differential stress?
A
Stress that acts in different amount in different directions.
7
Q
What type of stress gives rocks fabric?
A
Differential stress.
8
Q
What are the 4 types of metamorphism?
A
Thermal, dynamic, regional, and shock metamorphism.
9
Q
What is metamorphism?
A
Solid state recrystalization of the protolith.
10
Q
What temperature does metamorphism occur?
A
250-650 dc
