Cinder cone
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A cinder cone or scoria cone is a steep, conical landform of loose pyroclastic fragments, such as volcanic ash, clinkers, or scoria that has been built around a volcanic vent. The pyroclastic fragment
Cross-section diagram of a cinder cone or scoria cone
Cinders at a cinder cone in San Bernardino Valley, Arizona
SP Crater, an extinct cinder cone in Arizona
Sunset Crater, a young monogenetic cinder cone in Arizona that began forming around the year 1075 CE
Shield volcano
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A shield volcano is a type of volcano named for its low profile, resembling a shield lying on the ground. It is formed by the eruption of highly fluid lava, which travels farther and forms thinner flo
Mauna Loa, a shield volcano in Hawaii
An Ancient Greek warrior's shield—its circular shape and gently sloping surface, with a central raised area, is a shape shared by many shield volcanoes
ʻAʻa advances over solidified pāhoehoe on Kīlauea, Hawaiʻi
A pāhoehoe lava fountain on Kīlauea erupts