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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 (low viscosity ) lava , which travels farther and forms thinner flows than the more viscous lava erupted from a stratovolcano .
Unlike monogenetic volcanoes, polygenetic volcanoes reach massive sizes, such as Mauna Loa, which is the world's largest active volcano. Polygenetic volcanoes include stratovolcanoes , complex volcanoes , somma volcanoes , shield volcanoes and calderas .
A stratovolcano, also known as a composite volcano, is a typically conical volcano built up by many alternating layers of hardened lava and tephra. [1] Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and explosive eruptions. [2] Some have collapsed summit craters called calderas. [3]
Largest volcano in Europe by area, [18] and includes the peaks Plomb du Cantal and Puy Mary. Most recent eruption occurred 2-3 MYA. Puy de Sancy, in Auvergne-Rhône-Alpes. Both the tallest mountain in the Massif Central and volcano in France. [19] Most recent eruption occurred 200 thousand years ago. Monts Dore; Mont Ross; Gallieni Massif
The Cascade Arc includes nearly 20 major volcanoes, among a total of over 4,000 separate volcanic vents including numerous stratovolcanoes, shield volcanoes, lava domes, and cinder cones, along with a few isolated examples of rarer volcanic forms such as tuyas. Volcanism in the arc began about 37 million years ago; however, most of the present ...
Rustler Peak is considered a shield volcano, [2] as well as a stratovolcano. [3] It is an extinct volcano. References
Formed of a complex of stratovolcanoes and shield volcanoes, [1] there are about 35 known satellite vents in the Mazama complex. [6] Mazama is surrounded by monogenetic cinder cones, lava fields, and shield volcanoes made up of calc-alkaline basalt and andesite, tholeiite, and shoshonitic andesite. Varying in age from 600,000 to 40,000 years ...
This list of shield volcanoes includes active, dormant and extinct shield volcanoes. Shield volcanoes are one of the three types [ specify ] of volcanoes. They have a short cone shape, and have basaltic lava which means the lava has low viscosity (viscosity is a measure of the ability for a liquid to flow)