Metamorphic rock Flashcards
1
Q
foliated
A
texture in which the grains are aligned in bands
2
Q
Metamorphism
A
the process in which one type of rock forms into a metamorphic rock because of chemical processes or changes in temperature and pressure.
3
Q
non foliated
A
texture in which the grains are not arranged in bands or planes.
4
Q
regoinal meta
A
occurs when changes in temp and pressure affects large regions of earths crust. very common. formed by tectonic plates moving towards eachtoher.
5
Q
contact metaism
A
a local change in rock that occurs due to contact with magma.
6
Q
hydrothermal metaism
A
occurs when very hot water reacts with rocks and alters tc chemical and mineral composioton. valuable ore deposits form this way.
7
Q
A
