Stratovolcano


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Related to Stratovolcano: Composite volcano

stratovolcano

[¦strad·ō·väl′kā·nō]
(geology)
A volcano constructed of lava and pyroclastics, deposited in alternating layers. Also known as composite volcano.

Stratovolcano

 

(also composite volcano), a volcano whose cone is composed of alternating flows of hardened lava and lava fragments (blocks, bombs, lapilli) that have become cemented together and turned into tuff.

Stratovolcanoes are formed during the outpouring of lavas and during volcanic eruptions. Many have a conical shape and range in elevation from several hundred meters to several kilometers. The slopes of the cone are relatively steep at the peak and flatten out toward the foot. The crater is in the form of a depression that ranges in diameter from several dozen meters to 2–3 km. Examples of stratovolcanoes include Kliuchevskaia Sopka and Kar-ymskaia Sopka of Kamchatka (USSR) and Mount Fuji (Japan).

References in periodicals archive ?
Mount Lassen (Lassen Peak) grew as a vent on the northern flank of a collapsed volcano originally named Mount Tehama, a stratovolcano that formed some 400,000 to 600,000 years ago with eruptions estimated to have been 50 times greater than Mount Saint Helens in 1980.
The only Canadian city at risk from a volcanic eruption is Vancouver; this threat arises from the Mount Baker stratovolcano 100 km southeast of Vancouver in the state of Washington (Hickson 1994; Fig.
With its three volcanic cones, Kibo, Mawenzi, and Shira, it is an inactive stratovolcano in north-eastern Tanzania.
Mayon is a stratovolcano -- a tall, conical mountain composed of both hardened lava and volcanic ash.
Some of the farms closer to the crater of this 7,811 feet high andesitic-to-basaltic stratovolcano, were covered by a river of rocks, ash and mud water exceeding temperatures of 600[degrees]F.
This lava doesn't "explode" because it contains less dissolved gas than the ash and cinders of a stratovolcano.
The mountain is a stratovolcano, built up with alternating layers of lava, ash, and rock.
The property encompasses a large circular feature and is part of an eroded, extinct stratovolcano.
km around Mount Bandai, a stratovolcano in Fukushima, in a year.
Glacier-cloaked Mount Baker, in northern Washington State, is a stratovolcano formed by numerous eruptions over the past 50 000 years.
Helens is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States.