Volcano Types

1. Fissure

1.1. Lava flows through a fissure

1.2. Gentle basaltic slope of lava

2. Shield

2.1. Top Vent

2.2. Gentle Slope of basaltic lava flow

3. Dome

3.1. Vent

3.2. Steep convex slope from thick, fast cooling lava

4. Ash-Cinder

4.1. Vent

4.2. Fine ash, cinder

5. Composite

5.1. Vent

5.2. Branch pipe

6. Caldera

6.1. New cone

6.2. caldera