Unit Four - Types of Volcanoes

Question 1

What are the three types of Volcanoes?

Answer 1

1. Composite (stratovolcanoes)
2. Shield Volcanoes
3. Cinder Cone Volcanoes

Question 2

What are Composite (Strato) Volcanoes formed from?

Answer 2

They are formed from alternating layers of lava and rock fragments

Mt St. Helens, Mt Rainier, Vesuvius

Question 3

How do Composite (Strato) Volcanoes erupt? Why?

Answer 3

They erupt in an explosive way because the viscous magma creates a lot of pressure.

Mt St. Helens, Mt Rainier, Vesuvius

Question 4

Where are Composite Stratovolcanoes located?

Answer 4

They are located at a convergent boundary (oceanic and continental collision).

Mt St. Helens, Mt Rainier, Vesuvius

Question 5

How do Shield Volcanoes erupt?

Where erupt from, type of lava , size of mount, how and why it flows,

Answer 5

The BASALTIC lava slowly oozes out of the LARGE mountain, since the BASALTIC lava is runny. This BASALTIC lava flows from a vent or several vents.

Hawaii (Kilauea)

Question 6

Where are Shield Volcanoes located?

Answer 6

Found at hotspots or divergent boundaries (mid ocean ridge)

Hawaii (Kilauea)

Question 7

Where are Cinder Cone Volcanoes located?

Can grow very rapidly
Ex: Paricutin (in Mexico, grew 300 ft in 5 days)

Answer 7

Cinder Cone Volcanoes are usually located above vents of strato or shield volcanoes.

Can grow very rapidly
Ex: Paricutin (in Mexico, grew 300 ft in 5 days)

Question 8

What are Cinder Cone Volcanoes made of?

Answer 8

Cinder Cone Volcanoes are built from lava fragments called cinders

Can grow very rapidly
Ex: Paricutin (in Mexico, grew 300 ft in 5 days)

Question 9

All about Hot Spots

Answer 9

A hot spot is a fixed area of high temperatures within the mantle. It burns through the plate that is located above it.