L2. MAGMA AND METAMORPHISM

Question 1

This forms from partial melting of mantle rocks.

Answer 1

Magma

Question 2

When temperature rises, magma’s viscosity _________. Therefore, we can say that temperature and viscosity are ___________ related.

Answer 2

decreases; inversely

Question 3

When silica content increases, magma’s viscosity _________. Therefore, we can say that silica content and viscosity are ___________ related.

Answer 3

increases as well; directly

Question 4

When dissolved water increases, magma’s viscosity _________. Therefore, we can say that dissolved water and viscosity are ___________ related.

Answer 4

decreases; inversely

Question 5

Which is thicker; mafic magma or silicic (felsic) magma?

Answer 5

Silicic (Felsic) Magma

Question 6

Why is mafic magma less thick than silicic magma?

Answer 6

Since it is more hotter and contains less silica. Additionally, the volatiles in magma decreases viscosity

Question 7

It is the series of sequence of mineral crystallization in a cooling magma.

Answer 7

Bowen’s reaction

Question 8

It is the process of creating one or more secondary magmas from single parent magma.

Answer 8

Magmatic Differentiation

Question 9

The process through which pre-existing rocks are
transformed into metamorphic rocks

Answer 9

Metamorphism

Question 10

This pertains to the temperature and/or pressure condition(s) to which a rock has been subjected during metamorphism.

Answer 10

Metamorphic grade