lecture 3- metamorphic rock Flashcards
1
Q
what is metamorphic rock?
A
what heat and pressure act on existing rock changing its properties
2
Q
what is re-cystalisation?
A
when atoms of rock and reorganised by diffusion or dislocation glides
3
Q
what is foliation?
A
the repetition of layering
4
Q
what are the three types if metamorphism?
A
regional, dynamic and contact/thermal
5
Q
what is regional metamorphism
A
heat and pressure caused by tectonic plates that affect large areas
6
Q
what is dynamic metamorphism
A
small areas near faults that are in intense pressure
7
Q
what is contact/ thermal metamorphism
A
effect of temperature due to the intrusion of magma
