Metamorphic rock 2.4 Flashcards
The effect of heat on a rock that naturally decreases as the distance from the magma increases and as temperature decreases.
Contact Metamorphism
Pressure builds up in a rock that is buried deep below other rock formations or when large pieces of earths crust collide with each other.
Regainal Metamorphism
Minerals used to estimate temperature pressure and
depth.
Index minerals
Minerals grains are arranged in stripes or bands
Foliated
Shale hat becomes foliated metamorphic rock.
Slate
Slate exposed to extreme heat and pressure.
Phyillite
When phyillite is exposed to heat and pressure
Shcist
More heat and pressure cause minerals to separate into distinct bands in metamorphic rock.
Gneiss
Rocks that grains are not arranged into distinct stripes or bands
Nonfoliated rocks
The process in which Quartz sandstone is exposed to heat and pressure and the spaces of sand grains
dissipear
Recrystallizeation
A change of the shape of a rock caused by squeezed or stretched into folds or bands
Deformation