metamorphic rock retest

Front

What is a metamorphic rock?

Back

A metamorphic rock is a type of rock that has been changed from its original form (igneous or sedimentary) through heat, pressure, and/or chemically active fluids.

Front

What are the two main types of metamorphism?

Back

The two main types of metamorphism are regional metamorphism and contact metamorphism.

Front

What is regional metamorphism?

Back

Regional metamorphism occurs over large areas under high pressure and temperature, typically associated with tectonic plate movements.

Front

What is contact metamorphism?

Back

Contact metamorphism occurs when rocks are heated by nearby molten magma or lava, resulting in localized changes.

Front

What is foliation in metamorphic rocks?

Back

Foliation is the alignment of mineral grains in a metamorphic rock, resulting in a layered or banded appearance.

Front

What is a non-foliated metamorphic rock?

Back

A non-foliated metamorphic rock does not have a layered or banded appearance and is typically composed of minerals that do not exhibit foliation.

Front

Give an example of a foliated metamorphic rock.

Back

An example of a foliated metamorphic rock is schist.

Front

Give an example of a non-foliated metamorphic rock.

Back

An example of a non-foliated metamorphic rock is marble.

Front

What is the role of heat in the formation of metamorphic rocks?

Back

Heat provides the energy needed to drive chemical reactions and recrystallization of minerals in the rock.

Front

What is the role of pressure in the formation of metamorphic rocks?

Back

Pressure compacts the minerals in the rock, causing them to realign and form new structures.