1. Volcanic Landforms

2. Words you need to know: Accumulate – gather Explosive – explode
Broad – very wide

3. Remember this?

4. Shield Volcano Slow, gentle eruption Formed from layers of cooled lava
Low, gently sloped side
Ex: Mauna Loa, Mauna Kea in Hawaii

5. Mauna Loa in Hawaii is a Shield Volcano

6. Cinder Cone Sudden, violent eruption
Formed from ash, cinders, and dust
Cone-shaped mound
Examples: Mount Capalan, New Mexico

7. Capulin Cinder Cone in New Mexico

8. Composite Volcano Both violent and gentle eruptions
Formed from alternating layers of ash and lava
Cone-shaped mound, steep sides
Examples: Mount Shasta, California; Mount St. Helen’s in Washington State

9. Mount Shasta in California is an example of a Composite Volcano

10. Caldera
Sometimes magma beneath a volcano is released after the top of the volcano collapses, forming a large crater-shaped basin.
Steps in forming a caldera. 3. 1. 4. 2.

11. Lake Atitlan in Guatemala is an example of a Caldera

12. Lava Plateau
Lava that is released through a crack onto land forms a lava plateau as it builds up over time.