Stratovolcano - Wikipedia
WEBExposed internal structure of alternating layers of lava and pyroclastic rock in the eroded Broken Top stratovolcano in Oregon. A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. [1]
Stratovolcano | Shape, Examples, & Facts | Britannica
WEBStratovolcano, volcanic landform characterized by a conical shape formed by layers of volcanic material deposited during successive volcanic eruptions. Stratovolcanoes tend to slope gently at the base but rise quickly near the summit to form tall mountain peaks.
What is a Stratovolcano (Composite Cone)? - Earth How
WEBWhat is a stratovolcano? The stratovolcano is a type of volcano that rises above the Earth’s surface in a conical or cylindrical shape. They are constructed by many layers of hardened lava, volcanic ash, and volcanic bombs called tephra.
Stratovolcanoes | Volcano World | Oregon State University
WEBStrato Volcanoes comprise the largest percentage (~60%) of the Earth's individual volcanoes and most are characterized by eruptions of andesite and dacite - lavas that are cooler and more viscous than basalt.
Stratovolcano or Composite Volcano – Definition and Examples
WEBJun 30, 2024 · A stratovolcano or composite volcano is a large, steep-sided volcano that consists of multiple layers of hardened lava, tephra, pumice, and volcanic ash. These volcanoes have a conical shape and produce periodic, often explosive eruptions.
What Is a Stratovolcano? - WorldAtlas
WEBJun 13, 2018 · A stratovolcano is a tall volcano shaped like a cone, formed by various layers of materials such as volcanic ash, hardened lava, pumice, and tephra. Stratovolcanoes are steep and have periodic explosive and effusive eruptions, although some have calderas, which are collapsed craters.
Volcano - Eruptions, Cone, Magma | Britannica
WEBAug 27, 2024 · Stratovolcanoes are composed of volcanic rock types that vary from basalt to rhyolite, but their composition is generally andesite. They may erupt many thousands of times over life spans of millions of years. A typical eruption begins with ash explosions and ends with extrusion of thick, viscous lava flows.
Introduction - Guide to Stratovolcanoes - National Oceanic and ...
WEBFeb 24, 2016 · Stratovolcanoes, also called composite volcanoes, are typically steep-sided, symmetrical cones built of alternating layers of lava flows, volcanic ash, and other eruptive products (see animation courtesy of Exploring the Environment).
How Volcanoes Work - Stratovolcanoes
WEBStratovolcanoes, also known as composite cones, are the most picturesque and the most deadly of the volcano types. Their lower slopes are gentle, but they rise steeply near the summit to produce an overall morphology that is concave in an upward direction.
Composite Volcanoes (Stratovolcanoes) - U.S. National Park Service
WEBApr 17, 2023 · Composite volcanoes are also called stratovolcanoes. Some geologists avoid the use of the term “stratovolcano” because these volcanoes typically are not stratified and do not consist of orderly layers of lava flows and pyroclastic deposits.
Skip to content