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A fissure vent, also known as a volcanic fissure, eruption fissure or simply a fissure, is a linear volcanic vent through which lava erupts, usually without any explosive activity. The vent is often a few metres wide and may be many kilometres long. Fissure vents can cause large flood basalts which run first in lava channels and later in lava ...
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Cryovolcano – Type of volcano that erupts volatiles such as water, ammonia or methane, instead of molten rock; Diatreme – Volcanic pipe associated with a gaseous explosion; Dike – A sheet of rock that is formed in a fracture of a pre-existing rock body; Fissure vent – Linear volcanic vent through which lava erupts
A volcanic fissure and lava channel. A fissure vent, also known as a volcanic fissure or eruption fissure, is a long volcanic vent through which lava erupts. Fissure vents are connected to deep magma reservoirs and are typically found in and along rifts and rift zones. [14] They are commonly associated with shield volcanoes.
The craters were formed during a series of eruptions associated with a basaltic dyke intrusion from the volcanic system of Bárðarbunga around the year 877. [ a ] These eruptions, like those of the neighbouring Veiðivötn , were from about 65 kilometres (40 mi) (or 42 kilometres (26 mi) [ 5 ] ) long volcanic fissures within the area of a lake.
Augustine Volcano (Alaska) during its eruptive phase on January 24, 2006. A volcano is commonly defined as a vent or fissure in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
Volcanoes are not bound to one eruptive style, and frequently display many different types, both passive and explosive, even in the span of a single eruptive cycle. [3] Volcanoes do not always erupt vertically from a single crater near their peak, either. Some volcanoes exhibit lateral and fissure eruptions.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Volcanic_fissure&oldid=155744244"This page was last edited on 5 September 2007, at 00:57 (UTC) (UTC)