The foundation of our unit, literally, is the structure of volcanoes. It is imperative to be able to distinguish the four main types of volcanoes. Here I have them grouped by the different subcategories, which makes it easier to compare volcanoes
STRUCTURE:
Shield-quietly sloping, domeshaped mountain
Cinder Cone-narrow base and steep sides
Stratovolcano-large coneshaped mountain
Caldera-composite with a collapsed crater
ERUPTION:
Shield-quiet lava flows
Cinder Cone-explosive eruptions
Stratovolcano-explosive eruptions
Caldera-most explosive
COMPOSITION:
Shield-basaltic
Cinder Cone-pyroclastic material
Stratovolcano-layers of rock particles
Caldera-layers of rock particles
EXAMPLE:
Shield-Mauna Loa, Hawaii
Cinder Cone-Paracutin, Mexico
Stratovolcano-Mt. Vesuvius, Italy
Caldera-Yellowstone Caldera, Wyoming
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