Metamorphism and metamorphic rocks Flashcards
What is metamorphism?
Alteration of rocks due to heat, pressure, and fluids
What principle explains why mineral assemblages change during metamorphism?
Le Chatelier’s principle
Which is NOT an agent of metamorphism?
Wind
What kind of metamorphism is caused by heat from nearby magma?
Contact metamorphism
Which type of metamorphism occurs during mountain building and affects large volumes of crust?
Regional
Which rock is formed by the metamorphism of limestone?
Marble
What is the term for the layered or banded appearance in some metamorphic rocks caused by differential stress?
Foliation
Which rock typically does not develop foliation?
Quartzite
What is the parent rock of schist, in most cases?
Shale
What is the significance of chemically active fluids in metamorphism?
They speed up chemical reactions and mineral changes
