Metamorphic Rock

Question 1

Metamorphic Rocks

Answer 1

A rock that is the result of a transformation of pre-existing rock

Question 2

How do Metamorphic Rocks form

Answer 2

They are formed through the mineralogical and structural adjustment of solid rocks. This adjustment occurs via heat and pressure

Question 3

What Role does Heat and Pressure have on the creation of Metamorphic rocks

Answer 3

Heat and pressure are what allow a parent rock to metamorphize into a metamorphic rock. It changes the rocks composition and appearance

Question 4

What are the two types of Metamorphic Rock

Answer 4

Contact metamorphism and regional metamorphism

Question 5

Contact Metamorphism

Answer 5

This occurs when magma breaks through into existing rock. This change is relatively small and is said to be low-grade metamorphism.

Question 6

Regional Metamorphism

Answer 6

This occurs due to changes in pressure and temperature over a large region of the crust. This is said to be high-grade metamorphism.

Question 7

Explain the rock cycle

Answer 7

Igneous rocks are formed from magma or lava, then this igneous rock is weathered and undergoes the process of becoming a sedimentary rock. The sedimentary rock is then buried and changes into a metamorphic rock via heat and pressure. The metamorphic rock is then melted and turned back into magma which cools and forms an igneous rock.