Lava domes in Arizona are primarily found in the San Francisco Volcanic Field, located near Flagstaff. The region features several notable lava domes, such as Sunset Crater and the surrounding formations. These domes were created by the slow extrusion of viscous lava, resulting in steep, mound-like structures. The area is significant for studying volcanic activity and geology in the southwestern United States.
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A lava domes is a structure that forms when a volcano extrudes very viscous lava that builds into a dome-shaped pile rather than flow downhill.
Lava domes usually consist of rhyolite or dacite lava.
Near subduction zones
Lava domes are generally composed of felsic, highly viscous lava, usually dacite or rhyolite.
Not exactly. Some volcanoes do consist of simply a lava dome, but most lava domes are found in or on stratovolcanoes.
pancake domes
bulbous masses are associated with lava domes
Lava Domes,CompositeShield
Acid Lava Dome is a type of volcano that forms when viscous acid lava solidifies quickly to form a volcano with steep convex sides.
from lava domes from previous eruptions
Mount St. Augustine is a stratovolcano and lava domes