metamorphic rocks Flashcards
1
Q
what are metamorphic rocks?
A
parent rocks that has been altered/deformed by increases in temperature and/or pressure
2
Q
what is a parent rock?
A
preexisting rock from which metamorphic rocks are formed
3
Q
what is foliation?
A
minerals rearrange in flat layers due to extreme pressure
4
Q
what is banding?
A
type of foliation where pressure separates minerals into alternating light and dark layers
5
Q
what is non-foliated?
A
minerals rearrange & change form, but don’t form layers
6
Q
heat from geothermal/magma causes minerals to flow[not break] &..
A
cause minerals to rearrange, realign and become elongated
