is mount cotopaxi a shield volcano?
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The majestic, snow covered symmetrical stratovolcano is located on the Eastern Cordillera of the Ecuadorian Andes, 60 km south of Quito and 35 km northeast of Latacunga. Cotopaxi's steep cone has nested summit craters, the outer of which measures 550 x 800 m in diameter. Cotopaxi erupted more than 50 times since 1738.
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Stratovolcanoes are usually located on the continental crust above a subducting tectonic plate. The magma feeding the stratovolcanoes of the Andes Mountains, including El Misti, is associated with ongoing subduction of the Nazca Plate beneath the South American Plate.
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Shield Volcanoes. ... Eruptions at shield volcanoes are only explosive if water somehow gets into the vent , otherwise they are characterized by low-explosivity fountaining that forms cinder cones and spatter cones at the vent, however, 90% of the volcano is lava rather than pyroclastic material.
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Formed from clashing of two tectonic plates – the Indo-Australian and Eurasian plates, Mount Everest is not a volcano. ... Mount Everest – the highest mountain in the world stands 8848 meters (29,030 ft) high. It does not have any characteristics of a volcano like magma chamber below or inside it.
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Shield volcano eruptions are less explosive than composite volcanoes. Cinder cone volcanoes are steep, cone-shaped volcanoes built from lava fragments called 'cinders.
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Shield volcanoes. Shield volcanoes are found on divergent plate boundaries , where two plates move away from one another. Shield volcanoes have the following characteristics: Basaltic magma, which is high in temperature, very low on silica and with low gas content.
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El Yunque is a remnant of an ancient supervolcano named Hato Puerco. The volcano was one of the region's largest and most active volcanoes during the Cretaceous period 145-66 million years ago. "El Yunque's hardness and chemical properties came from being 'cooked' in the chamber of the volcano," says Willenbring.
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In marine geology, a guyot (pronounced /ɡiːˈjoʊ/), also known as a tablemount, is an isolated underwater volcanic mountain (seamount) with a flat top more than 200 m (660 ft) below the surface of the sea. The diameters of these flat summits can exceed 10 km (6.2 mi).
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Helens from the convergent plate boundary separating the Juan de Fuca and North American plates? Mount St.
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Mount Hood is a potentially active stratovolcano in the Cascade Volcanic Arc. It was formed by a subduction zone on the Pacific coast and rests in the Pacific Northwest region of the United States.
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Helens from the convergent plate boundary separating the Juan de Fuca and North American plates? Mount St. Helens, like the other volcanoes of the Cascades, is composed of andesitic and rhyolitic pyroclastic materials.
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Shield Volcano. A dome shaped volcano with gently sloping sides and a broad base characteristic of relatively low viscosity, basaltic lava eruptions.
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Mount Hood is a potentially active stratovolcano in the Cascade Volcanic Arc. It was formed by a subduction zone on the Pacific coast and rests in the Pacific Northwest region of the United States. It is located about 50 miles (80 km) east-southeast of Portland, on the border between Clackamas and Hood River counties.
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A dormant volcano, Mount Konocti is said by geologists to be a composite cone of lava that was built up over millions of years of gentle eruptions. The volcano became dormant approximately 10,000 years ago, making it the youngest mountain in all of California's coastal ranges.
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There are three main types of volcano - composite or strato, shield and dome. Composite volcanoes, sometimes known as strato volcanoes, are steep sided cones formed from layers of ash and [lava] flows.
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The area is part of the Adelaide Geosyncline. Despite early amateur theories that it was some kind of ancient volcano, the actual Pound is a synclinal basin, with the fold axis running NNW-SSE through Edeowie Gorge at the northern end and Rawnsley's Bluff at the southern.
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It also is unlikely to erupt again, but the Lassen Volcanic Center is still active. Clynne believes that future eruptions are likely to come in the vicinity of Lassen Peak and Chaos Crags. What is now called Brokeoff Mountain began as Mount Tehama — a volcano for about 200,000 years.