Chapter 4 Lesson 4 - Metamorphic Rocks and Their Properties

Front

What is Contact Metamorphism?

Back

Contact Metamorphism is the process that occurs when magma comes into contact with existing rocks, causing them to change in mineral composition and texture.

Front

What are nonfoliated rocks?

Back

Nonfoliated rocks are metamorphic rocks that do not have a layered or banded appearance. Examples include marble and quartzite, which have interlocking mineral grains.

Front

What is metamorphism?

Back

Metamorphism is the process that alters the structure or composition of rocks in a solid state due to changes in temperature, pressure, or the presence of chemically active fluids.

Front

What does it mean to expose something?

Back

To expose means to make something visible or to reveal it.

Front

True or False: The texture of a metamorphic rock can indicate the temperatures and pressures involved in its formation.

Back

True

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What is the difference between foliated and nonfoliated rocks?

Back

Foliated rocks have a layered or banded appearance due to the alignment of minerals, while nonfoliated rocks do not have this structure.

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What is an example of a foliated metamorphic rock?

Back

An example of a foliated metamorphic rock is schist, which has visible layers of minerals.

Front

What is an example of a nonfoliated metamorphic rock?

Back

An example of a nonfoliated metamorphic rock is marble, which is formed from limestone.

Front

What role does pressure play in metamorphism?

Back

Pressure can cause minerals in rocks to realign and change, leading to the formation of foliated textures.

Front

What is plastic deformation?

Back

Plastic deformation is the process where rocks change shape without breaking, often occurring under high pressure and temperature.