Volcanic vocab 4/23

Question 0

Any activity that includes the movement of magma toward or onto earths surface

Answer 0

Volcanism

Question 1

Liquid rock produced under earths surface

Answer 1

Magma

Question 2

Magma that flows onto earths surface; the rock that forms when lava cools and solidifies

Answer 2

Lava

Question 3

A vent or fissure in earths surface through which magma and gases are expelled

Answer 3

Volcano

Question 4

A volcanically active area of earths surface commonly found far from a tectonic plate boundary

Answer 4

Hot spot

Question 5

Describes magma or igneous rock, rich in MAGNESIUM and IRON-dark in color

Answer 5

Mafic

Question 6

Describes magma/rock that is rich in FELDSPAR and SILICIA-light in color

Answer 6

Felsic

Question 7

Pyroclastic Material

Answer 7

Fragments of rock that form during a volcanic eruption

Question 8

Caldera

Answer 8

Large, circular depression that forms when the magma chamber below a volcano partially empties and causes ground above to sink