Earth & Life Science_ Magmatism

Conduction in mantle happens when heat is transferred from hotter molten rocks to the Earth’s cold crust. What process is being described?

• flux melting

• heat transfer

• partial melting

• decompression melting

What term should be used to describe a semi-liquid hot molten rocks located beneath the Earth?

• lava

• sand

• rocks

• magma

In what part of the earth does magmatism happen?

• Asthenosphere

• Earth’s crust

• Earth’s core

•  Lithosphere

What do you call the semi-liquid hot molten rocks found on the surface of earth once the volcano erupts?

•  lava

• sand

• rocks

•  magma

Which of the following is NOT a factor of partial melting?

• addition of volatiles

• decrease in pressure

• an increase in pressure

• an increase in temperature

During partial melting, which of the following minerals melt last?

• biotite

• quartz

•  feldspar

• none of the above

What are the two most abundant elements in magma?

• oxygen and magnesium

• silicon and aluminum

• silicon and oxygen

• oxygen and iron

During partial melting of magma, where does heat transfer take place?

• convergent boundary

• mid-ocean ridge

• subduction zone

• all of the above

During partial melting, which of the following minerals melt first?

• biotite

• quartz

• feldspar

• both b and c

During partial melting of magma, where does flux melting take place?

• convergent boundary

• mid-ocean ridge

• subduction zone

• all of the above