Types of Volcanoes

Question 1

• also known as composite volcanoes.

Answer 1

Stratovolcanoes

Question 2

• characterized by their steep, conical shape.
• most iconic volcano shape.
• have explosive eruptions due to the presence of viscous, andesitic or dactic magma.

Answer 2

Stratovolcanoes

Question 3

• have a broad, gently sloping profile that resembles a warrior’s shield or a flatted dome.

Answer 3

Shield Volcanoes

Question 4

• primarily built up by the flow of low viscosity basaltic lava, resulting in non-explosive eruptions.

Answer 4

Shield Volcanoes

Question 5

• small, steep sided mounds formed from the accumulation of volcanic fragments.

Answer 5

Cinder Cone Volcanoes

Question 6

• have short-lived, relatively minor eruptions.
• associated with basaltic magma

Answer 6

Cinder Cone Volcanoes

Question 7

• formed when highly viscous magma accumulates near the volcano’s vent, resulting in a steep-sided, rounded or elongated mound.

Answer 7

Lava Domes

Question 8

• can lead to explosive eruptions when the pressure builds up, but they can also grow quietly.

Answer 8

Lava Domes

Question 9

• massive, basin-like depressions created when a volcano’s summit collapses after a large eruption or a gradual subsidence.
• vary in size, some reaching several kilometers in diameter.

Answer 9

Caldera

Question 10

• located on the ocean floor.
• can create new seafloor features.

Answer 10

Submarine Volcanoes

Question 11

• also known as rift volcanoes.

Answer 11

Fissure Volcanoes

Question 12

• characterized by elongated cracks or fissures from which the lava erupts.
• common in divergent plate boundaries and volcanic regions

Answer 12

Fissure Volcanoes