Composite Volcano Diagram
Steep-sided volcanoes composed of many layers of volcanic rocks, usually made from high-viscosity (thick like honey) lava, ash and rock debris (broken pieces).
Mt. Rainier, Mount St. Helens and Mt. Shasta in California
Caused by a volcano collapsing into itself. Commonly circular or elliptical when seen from above
Cinder Cone Diagram
Mt. Haleakala on Maui, Hawaii
Formed when erupting lava is too thick to flow and makes a steep-sided mound as the lava piles up near the volcanic vent.
Dome Volcano Diagram
Crater Lake in southern Oregon
Shaped like a bowl or shield in the middle with long gentle slopes made by basaltic lava flows.
Shield Volcano Diagram
Kilauea in Hawaii, Olympus Mons on Mars