Accueil > Blossary: Volcano
An article detailing different terms relating to volcanoes and volcanic eruptions.

Catégorie : Geography

22 Terms

Created by: Silentchapel

Number of Blossarys: 95

Mes termes
Collected Terms

Submarine volcanoes are underwater vents or fissures in the Earth's surface from which magma can erupt. They are estimated to account for 75% of annual magma output. The vast majority are located ...

Domain: Natural environment; Catégorie: Volcano

A supervolcano is any volcano capable of producing a volcanic eruption with an ejecta volume greater than 1,000 km3 (240 cu mi). This is thousands of times larger than normal volcanic eruptions. ...

Domain: Natural environment; Catégorie: Volcano

A lahar is a type of mudflow or debris flow composed of a slurry of pyroclastic material, rocky debris, and water. The material flows down from a volcano, typically along a river valley. Lahars are ...

Domain: Natural environment; Catégorie: Volcano

Stratovolcanoes or composite volcanoes are tall conical mountains composed of lava flows and other ejecta in alternate layers, the strata that give rise to the name. Stratovolcanoes are also known as ...

Domain: Natural environment; Catégorie: Volcano

Volcanic cones are among the simplest volcanic formations. They are built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone with a central crater. Volcanic cones are of ...

Domain: Natural environment; Catégorie: Volcano

Shield volcanoes, so named for their broad, shield-like profiles, are formed by the eruption of low-viscosity lava that can flow a great distance from a vent. They generally do not explode ...

Domain: Natural environment; Catégorie: Volcano

In volcanology, a lava dome or volcanic dome is a roughly circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. The geochemistry of lava domes can vary ...

Domain: Natural environment; Catégorie: Volcano

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