Ch. 4 Lesson 4 Quick Vocabulary

What is contact metamorphism?

• Occurs when magma comes in contact with existing rock

• Formation of rock layers

• Erosion of rocks by water

• Cooling of lava on the surface

What does the term "expose" mean?

• To hide

• To appear visible

• To break apart

• To melt

What is a characteristic of foliated rock?

• Contains parallel layers of flat and elongated minerals

• Has a smooth surface

• Is made of volcanic ash

• Contains round mineral grains

What does metamorphism affect?

• The color of rocks

• The structure or composition of rocks

• The size of rocks

• The weight of rocks

What is a feature of nonfoliated rock?

• Has mineral grains with a random interlocking texture

• Contains layers of minerals

• Is formed by volcanic activity

• Is always found underwater

What is plastic deformation?

• Temporary change in rock shape

• Permanent change in rock shape caused by bending and folding

• Melting of rocks

• Erosion by wind

What is regional metamorphism?

• Formation of small rock particles

• Formation of metamorphic rock bodies that are hundreds of square kilometers in size

• Erosion of large rock formations

• Cooling of magma in small areas

Tags

NGSS.HS-ESS2-3