Metamorphic Rocks Flashcard

Front

What is regional metamorphism?

Back

Regional metamorphism occurs when rock formations in the crust collide and build pressure, leading to changes in the rock's structure and mineral composition.

Front

What primarily causes changes in rocks during contact metamorphism?

Back

Heat from magma primarily causes changes in rocks during contact metamorphism.

Front

What are foliated metamorphic rocks?

Back

Foliated metamorphic rocks are those that have visible layers or bands of minerals within them.

Front

Which metamorphic rock is the most changed?

Back

Gneiss is the metamorphic rock that has been changed the most.

Front

What is the rock family composed of rocks changed by heat, pressure, or chemicals?

Back

The rock family composed of rocks that have been changed by heat, pressure, or chemicals is called metamorphic rocks.

Front

What is contact metamorphism?

Back

Contact metamorphism is the process where rocks are altered by the heat and fluids from nearby magma.

Front

What is the difference between foliated and unfoliated metamorphic rocks?

Back

Foliated metamorphic rocks have a layered or banded appearance, while unfoliated metamorphic rocks do not have distinct layers.

Front

What is the role of pressure in metamorphism?

Back

Pressure plays a crucial role in metamorphism by causing changes in the mineral structure and texture of rocks.

Front

What type of metamorphism occurs at tectonic plate boundaries?

Back

Regional metamorphism often occurs at tectonic plate boundaries due to the immense pressure and heat generated.

Front

What is the significance of heat in metamorphic processes?

Back

Heat is significant in metamorphic processes as it facilitates the recrystallization of minerals and the formation of new minerals.