Podcast
Questions and Answers
Foliation is the repetition of planar surfaces or layers in a metamorphic rock. True or False?
Foliation is the repetition of planar surfaces or layers in a metamorphic rock. True or False?
True (A)
Foliated rock has been not been subjected to differential stress.
Foliated rock has been not been subjected to differential stress.
False (B)
What is an example of foliated rock?
What is an example of foliated rock?
- slate
- gneiss
- schist
- all of the above (correct)
Non-foliated rock is crystallized without differential stress.
Non-foliated rock is crystallized without differential stress.
Non-foliated rock is made up of
Non-foliated rock is made up of
Foliation is possible if
Foliation is possible if
Metamorphic grade is the amount/degree of metamorphic change of the ___________.
Metamorphic grade is the amount/degree of metamorphic change of the ___________.
Prograde refers to
Prograde refers to
Which does not happen when increasing metamorphic grade?
Which does not happen when increasing metamorphic grade?
Index minerals are minerals that have limited temperature-pressure range.
Index minerals are minerals that have limited temperature-pressure range.
Which of the following can be used to determine the degree of metamorphism that a rock has experienced?
Which of the following can be used to determine the degree of metamorphism that a rock has experienced?
Metamorphic facies are mineral assemblages from a specific protolith at specific temperature-pressure conditions.
Metamorphic facies are mineral assemblages from a specific protolith at specific temperature-pressure conditions.
In a thermal setting, metamorphism happens due to
In a thermal setting, metamorphism happens due to
Bands of alteration created in the host rock during plutonic intrusion are zoned from
Bands of alteration created in the host rock during plutonic intrusion are zoned from
Metamorphosis that occurs during burial happens because
Metamorphosis that occurs during burial happens because
Burial metamorphism requires burial below diagenetic effects, happening around 8-15km, depending on the geothermal gradient.
Burial metamorphism requires burial below diagenetic effects, happening around 8-15km, depending on the geothermal gradient.
Dynamic metamorphism occurs in which setting
Dynamic metamorphism occurs in which setting
When dynamic metamorphism occurs in shallow crust, rocks behave in a ______ manner.
When dynamic metamorphism occurs in deeper crust, rocks behave in a ______ manner.
When dynamic metamorphism occurs in shallow crust, rocks behave in a ______ manner. When dynamic metamorphism occurs in deeper crust, rocks behave in a ______ manner.
Regional metamorphism occurs when temperatures and pressures are altered due to orogenesis.
Regional metamorphism occurs when temperatures and pressures are altered due to orogenesis.
Regional metamorphism causes which of the following
Regional metamorphism causes which of the following
Where does hydrothermal metamorphism occur?
Where does hydrothermal metamorphism occur?
During subduction, which of the following is true for metamorphism to occur
During subduction, which of the following is true for metamorphism to occur
Shock metamorphism might happen because
Shock metamorphism might happen because
