Metamorphism

easy

100

The process of forming metamorphic rocks

Metamorphism

200

MAKES ROCKS MORE COMPACT AND MAY ARRANGE MINERALS INTO LAYERS.

high pressure

300

In the chart, which two minerals remain stable throughout the entire metamorphic range from low to high grade?

Quartz and Feldspar

kaya niyo

100

The two main agents of metamorphism

Heat and Pressure

200

^{METAMORPHIC ROCKS ARE GROUPED INTO 2}

FOLIATED & NON FOLIATED

300

Which metamorphic rock forms just before melting occurs at the highest grade?

Gneiss

yan

100

type of rock that begin from a previous rock type.

METAMORPHIC ROCKS

200

Give an example of foliated rocks

SLATE, SCHISS, GNEISS

300

If a shale undergoes metamorphism to ~750°C, which two minerals dominate its mineral composition?

Garnet and Sillimanite

madali

100

is the pervasive planar structure that results from the nearly parallel alignment of sheet silicate minerals and/or compositional and mineralogical layering in the rock.

Foliation

200

Give an example of non foliated

QUARTZITE, MARBLE, ANTHRACITE COAL

300

At approximately what temperature range does muscovite (mica) become unstable, giving way to sillimanite?

~700–800°C

lang

100

_{CAUSES MINERALS TO CHANGE, CRYSTALS TO GROW BIGGER, AND ROCKS TO BECOME EASIER TO BEND.}

high temperature

200

_{PERTAINS TO THE TEMPERATURE AND/OR PRESSURE CONDITION(S) TO WHICH A ROCK HAS BEEN SUBJECTED DURING METAMORPHISM.}

Metamorphic Grade

300

Which mineral is stable across both low- and intermediate-grade metamorphism but disappears before high-grade conditions?

Chlorite