Volcano

Question 1

What is a Shield Volcano?

Answer 1

• Basaltic lava (hot)
• Silica poor
• Very runny
• Non explosive

Question 2

What is a Volcanic Dome?

Answer 2

• Silica rich (cool lava)
• Rhyolitic/Andesitic
• Not runny
• High peak
• Very explosive
• eg; mount st helens

Question 3

What is a Cinder-Cone Volcano?

Answer 3

• Pyroclastic materials
• Silica rich
• Steep sides
• explosive eruptions
• Very little lava is erupted

Question 4

What is a Stratovolcano?

Answer 4

• Has lava flows and pyroclastic eruptions.
• Intermediate between the shield volcano and the dome volcano
• Rhyolitic

Question 5

Caldera

Answer 5

• What is left after an eruption

- Volcano is not resupplied with more magma

Question 6

Mass extinction event

Answer 6

250 million years ago

Question 7

Pyroclastic Flows

Answer 7

Deadly ones

Question 8

Fissure eruptions

Answer 8

• Highly fluid
• Basaltic Lava
• Erupt from multiple spots