Metamorphic Rock Quiz Prep

If a rock totally melts while it is changing, what type of rock does it become?

Igneous

When pressure causes foliation, which way do the bands go?

Sideways to the pressure, just like if you squash a ball of clay

BEFORE AFTER

What is Contact metamorphosis?

Metamorphosis caused by contact with heat, such as rock near a volcano

Where is contact metamorphism most likely to cause metamorphic rocks to form?

In Small areas, like near the volcano

Metamorphic Rocks that have bands of crystals OR many layers are what class of metamorphic Rock?

FOLIATED metamorphic rock

What type of foliation ( Banding) does Gneiss have?

NICE easy to see bands of color

Schist, gneiss, mica, slate and phylite are all what class of metamorphic rocks?

FOLIATED

Foliation occurs when pressure causes what to happen to the crystals in the rock?

The crystals flatten and fuse together

What is regional metamorphosis?

Metamorphosis caused across a large region

What could cause regional metamorphosis ?

Continental collision

Regional metamorphism is most likely to cause what type of metamorphic rocks to form?

Rocks that need high pressure to form such as all of the foliated rocks.

Melting heat must occur for what type of rock to form?

Igneous rock

Pressurized hot water can cause what type of rock to form?

Metamorphic, like Quartzite

Pressure can cause what type of rock to form?

Metamorphic

Weathering must occur for what type of rock to form?

SEDIMENTARY

Marble, amphibolite and quartzite are all what class of metamorphic rocks?

NON-FOLIATED

Limestone becomes what metamorphic rock?

Marble

Basalt becomes what metamorphic rock?

Amphibolite

Claystone becomes what metamorphic rock?

Slate

becomes what metamorphic rock?

Phylite

Phylite becomes what metamorphic rock?

Schist or Mica

What kind of foliation does schist have?

Often very fine hard to see foliation