1. Volcanoes Chapter 10 - mountains created by rising magma Types
1. Shield volcano
- large, dome-shaped volcano
- ex. – Hawaiian Islands
2. Cinder volcano
- small volcanoes caused by a single eruption
3. Composite Cones
- steep volcanoes along Earth’s “ring of fire”

2. Shield Volcano

3. Cinder Cone Volcano

4. Composite Volcano

5. Mount St. Helens

6. Volcano Profiles

7. Volcanic Material
1. Lava
- basaltic lava – fast flowing
- silica-rich lava – very slow moving
2. Gases
- Water vapor, carbon dioxide,
nitrogen, and sulfur.
3. Pyroclastic Materials
- solid fragments erupted from
volcanoes

8. Basaltic Lava (fast)

9. Silica-rich Lava (slow)

10. Volcanic Landforms
1. Crater
- the top of a volcano
2. Pipes(Conduits)
- underground tunnels that magma
flows through
3. Neck
- cooled magma in pipes that break
Earth’s surface (look like rock towers)

11. Parts of a Volcano