A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava, tephra, pumice and ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit craters called calderas.
Left: This is a schematic diagram of a strato volcano, intended to illustrate the different layers of different materials that comprise them. The purple colors are meant to represent ash layers, either the products of fall-out from big eruption clouds or the products of pyroclastic flows. Notice that these ash layers tend to be thin but widespread.
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Stratovolcano . Strato Volcanoes comprise the largest percentage (~60%) of the ... This is a schematic diagram of a strato volcano, intended to illustrate the different layers of different materials that comprise them. The purple colors are meant to represent ash layers, either the products of fall-out from big eruption clouds or the products ...
A stratovolcano is a tall, conical volcano composed of one layer of hardened lava, tephra, and volcanic ash. These volcanoes are characterized by a steep profile and periodic, explosive eruptions.
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This stratovolcano is most well-known for its eruption in 1980 which killed 57 people in addition to destroying 185 miles of highway, 15 miles of railways, 47 bridges and 250 homes. This eruption was triggered by a 5.1 earthquake and created an avalanche of debris that had a volume of around 0.7 cubic miles.
Stratovolcanoes form when a conduit grows out from a pocket of magma and eventually reaches the surface. Over millions of years and countless eruptions, the magma and ash cool and settle, forming the large, summit-like volcano. Stratovolcanoes grow larger than any of the other types of volcano and some reach more than a mile in height.
Shield Volcano: Interesting Facts, Examples, And Diagrams. By: Daniel Nelson | November 17, 2017. A shield volcano is the largest type of volcano on Earth, with low viscosity lava flows and a wide broad shape. The low viscosity, runny, nature of the lava means it travels in streams far from the source and covers many square miles.
A list of stratovolcanoes follows below. Africa. Mount Kenya in 1972. Lava lake inside Mount Nyiragongo. Cameroon ... a dormant stratovolcano. It is the highest point of Africa. Mount Meru; Mid-Atlantic Ridge ... Mount Banahaw in Quezon is one of the active volcanoes in the Philippines.