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The term composite volcano is used because strata are usually mixed and uneven instead of neat layers. [6] They are among the most common types of volcanoes; [7] more than 700 stratovolcanoes have erupted lava during the Holocene Epoch (the last 11,700 years), [8] and many older, now extinct, stratovolcanoes erupted lava as far back as Archean ...
Nevado Sajama ([neˈβaðo saˈxama]; Aymara: Chak Xaña) is an extinct volcano and the highest peak in Bolivia. The mountain is located in Sajama Province, in Oruro Department. It is situated in Sajama National Park and is a composite volcano consisting of a stratovolcano on top of several lava domes.
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] They may form due to changes in eruptive habit or in the location of the principal vent area on a particular volcano. [ 2 ]
Block flows, lava flows, lava domes and some ignimbrites of pumiceous composition form this composite volcano. [3] More than six lava domes and two major cones are part of this system and surrounded by a pyroclastic apron, [ 4 ] which covers a surface area of 300 square kilometres (120 sq mi) and is formed from many pyroclastic flows with a ...
Osorno volcano in Chile is an example of a well-developed stratocone.. Stratocones are large cone-shaped volcanoes made up of lava flows, explosively erupted pyroclastic rocks, and igneous intrusives that are typically centered around a cylindrical vent.
[10]: 3–4 It is usually described as a composite volcano which is the same as a stratovolcano. [1] [11] It is separate from the present potentially active fissure swarms and central volcanoes nearby and is believed to be inactive. Its original magma reservoirs are believed to have been at 9–11 km (5.6–6.8 mi), and 15–18 km (9.3–11.2 ...
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Socompa is a 6,051-metre-high (19,852 ft) [b] [c] [27] composite volcano [4] consisting of a central cone and several lava domes; [28] it is the most voluminous conical volcano of the Central Volcanic Zone [29] and one of the highest edifices there, rising more than 2 kilometres (1.2 mi) above the surrounding terrain. [30]