Metamorphic Rock Identification (Page 4 of 4) in pdf

Metamorphic Rock Identification Page 4

Mini Glossary

contact metamorphism:

nonfoliated rock:

a process in which magma comes

a metamorphic rock that has mineral

in contact with existing rock, and its thermal energy and

grains with a random, interlocking texture

gases interact with the surrounding rock to make new

plastic deformation:

a permanent change in shape by

metamorphic rock

bending and folding

foliated rock:

a rock that contains parallel layers of flat and

regional metamorphism:

the formation of metamorphic

elongated minerals

rock bodies that are hundreds of square kilometers in size

metamorphism:

any process that affects the structure or

composition of a rock in a solid state as a result of changes

in temperature, pressure, or the addition of chemical fluids

Review the terms and their definitions in the Mini Glossary. Write two sentences that

describe the difference between a foliated rock and a nonfoliated rock.

Identify three forces that can change rock into new metamorphic rock.

Metamorphic

Rock

Why is the pressure greater on a rock that is deep underground than on a rock that is

close to Earth’s surface?

What do you think

onnect

Reread the statements at the beginning of the

lesson. Fill in the After column with an A if you

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agree with the statement or a D if you disagree.

END OF

LESSON

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Rocks

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