Volatiles

Question 1

defined as molten rock material produced by partial melting of the mantle and crust

Answer 1

Magma

Question 2

Formation of Magma

Answer 2

Temperature
Pressure
Volatiles

Question 3

Increases with depth, which is called geothermal gradient. This increase will obviously induce melting

Answer 3

Temperature

Question 4

Decrease in pressure causes adiabatic decompression

Answer 4

Pressure

Question 5

are substances that evaporate easily and can exist in gaseous form in the surface of earth

Answer 5

Volatiles

Question 6

occurs along plate boundaries or margins and sometimes within the plate.

Answer 6

Magmatism

Question 7

Plate Boundaries can be classifies as

Answer 7

Convergent, Divergent, Transform

Question 8

Classification of Magma

Answer 8

Tholeiitic magmas or tholeiites
Calc-alkaline basalts
Alkaline basalts
Carbonatites

Question 9

produced by large degree of melting

Answer 9

Tholeiitic magmas or tholeiites

Question 10

form along convergent plate boundaries above subduction zones

Answer 10

Calc-alkaline basalts

Question 11

form from smaller degree of partial melting

Answer 11

Alkaline basalts

Question 12

the only magmas that are not produced by silicate source rocks

Answer 12

Carbonatites

Question 13

Magmas are classifies according to the ratio between the??

Answer 13

Alkalis and silica content