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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]
A tuff cone, sometimes called an ash cone, is a small monogenetic volcanic cone produced by phreatic (hydrovolcanic) explosions directly associated with magma brought to the surface through a conduit from a deep-seated magma reservoir. They are characterized by high rims that have a maximum relief of 100–800 meters (330–2,620 ft) above the ...
Mount Ararat, Turkey Homa Mountain, Kenya in 1994 An eruption of Pacaya, Guatemala in 1976 Mount Banahaw, Luzon, the Philippines in 1989 Kelimutu, Flores, Indonesia. A complex volcano, also called a compound volcano or a volcanic complex, is a mixed landform consisting of related volcanic centers and their associated lava flows and pyroclastic rock. [1]
The erupted volcanic material (lava and tephra) that is deposited around the vent is known as a volcanic edifice, typically a volcanic cone or mountain. [ 2 ] [ 22 ] The most common perception of a volcano is of a conical mountain, spewing lava and poisonous gases from a crater at its summit; however, this describes just one of the many types ...
Bulusan is classified by volcanologists as a stratovolcano (or a composite cone) and covers the northeast rim of Irosin caldera that was formed about 40,000 years ago. It has a peak elevation of 1,565 m (5,135 ft) above sea level with a base diameter of 15 km (9.3 mi).
Averaging 230 m in height and 710 m in diameter, 7 cinder cones are found on the southern and southwestern lower slopes. Composed of olivine-augite basalt, these cones have an angle of repose of 34%, with Ligñon Hill as an example. [11] [better source needed] Like other volcanoes around the Pacific Ocean, Mayon is a part of the Pacific Ring of ...
Also has the characteristics of a shield volcano. Diamond Peak (Oregon) Usually referred to as a shield volcano. However, it has a stratocone. Cappy Mountain [4] Mount Mazama. Over 7,000 years ago, Mount Mazama erupted, causing its original edifice to be turned into a caldera instead. Mount Scott (Klamath County, Oregon) Hillman Peak
A cinder cone (or scoria cone [1]) is a steep conical hill of loose pyroclastic fragments, such as volcanic clinkers, volcanic ash, or scoria that has been built around a volcanic vent. [ 2 ] [ 3 ] The pyroclastic fragments are formed by explosive eruptions or lava fountains from a single, typically cylindrical, vent.