A fissure vent, also known as a volcanic fissure or simply fissure, is a linear volcanic vent through which lava erupts, usually without any explosive activity. Plate tectonics and hotspots Divergent plate boundaries At the Lava is molten rock expelled by a Volcano during an eruption When first expelled from a volcanic vent it is a Liquid at Temperatures An explosive eruption is a Volcanic term to describe a violent explosive type of Eruption. The vent is usually a few meters wide and may be many kilometers long. Fissure vents can cause large flood basalts and lava channels. A flood basalt or trap basalt is the result of a giant Volcanic eruption or series of Eruptions that coats large stretches of land or the Ocean floor This type of volcano is usually hard to recognize from the ground and from outer space because it has no central caldera and the surface is mostly flat. Outer space, often simply called space, comprises the relatively empty regions of the Universe outside the escape velocities of Celestial bodies. A caldera is a cauldron-like volcanic feature formed by the collapse of land following a volcanic eruption The volcano can usually be seen as a crack in the ground or on the ocean floor. "Ocean Floor" redirects here For the 2001 song by Audio Adrenaline, see Lift (Audio Adrenaline album. Narrow fissures can be filled in with lava that hardens. As erosion removes its surroundings, the lava mass could stand above the surface as a dyke. Erosion is the carrying away or displacement of solids ( Sediment, Soil, rock and other particles usually by the agents of currents such as wind A dike or dyke in Geology is a type of Sheet intrusion referring to any geologic body that cuts Discordantly ' across planar The dykes that feed fissures reach the suface from depths of a few kilometers. Fissures are usually found in or along rifts and rift zones, such as Iceland and the Great Rift Valley in Africa. In Geology, a rift is a place where the Earth 's crust and Lithosphere are being pulled apart and is an example of Extensional tectonics A rift zone is a feature of some Volcanoes especially the Shield volcanoes of Hawaii, in which a linear series of fissures in the volcanic Iceland, officially the Republic of Iceland ( ( Ísland or Lýðveldið Ísland ( The Great Rift Valley is a name given in the late 19th century by English explorer John Walter Gregory to the continuous geographic trough approximately in length that runs
In Iceland, volcanic vents are often long fissures parallel to the rift zone where lithospheric plates are diverging. The lithosphere (IPA, from the Greek λίθος for "rocky" + σφαίρα for "sphere" is the solid outermost shell of a rocky Planet. Plate tectonics (from Greek τέκτων tektōn "builder" or "mason" describes the large scale motions of Earth 's Lithosphere Renewed eruptions generally occur from new parallel fractures offset by a few hundred to thousands of metres from the earlier fissures. This distribution of vents and voluminous eruptions of fluid basaltic lava usually build up a thick lava plateau rather than a single volcanic edifice. The Laki fissure system produced the biggest eruption on earth in historical times, in the form of a flood basalt, during the Eldgjá eruption A. Laki or Lakagígar ( Craters of Laki) is a volcanic fissure situated in the south of Iceland, not far from the canyon of Eldgjá and Eldgjá is a volcanic canyon in Iceland. Eldgjá and the nearby Laki craters are part of the same volcanic system as Katla in the south of the country D. 934, which released 19. 6 km³ (4. 7 mi³) of lava.
The radial fissure vents of Hawaiian volcanoes produce “curtains of fire” as lava fountains erupt along a portion of a fissure. Hawaii Volcanoes National Park, established in 1916 is a United States National Park located in the U A lava fountain is a volcanic phenomenon in which Lava is forcefully but non-explosively ejected from a crater, vent or fissure. These vents produce low ramparts of basaltic spatter on both sides of the fissure. Basalt (bəˈsɔːlt ˈbeisɔːlt ˈbæsɔːlt is a common Extrusive Volcanic rock. More isolated lava fountains along the fissure produce crater rows of small spatter and cinder cones. A cinder cone or scoria cone is a steep conical Hill of volcanic fragments that accumulate around and downwind from a Volcanic vent. The fragments that form a spatter cone are hot and plastic enough to weld together, while the fragments that form a cinder cone remain separate because of their lower temperature.
List of fissure vents
| Name | Elevation | Location | Last eruption | |
| metres | feet | Coordinates | ||
| Laki | 1725 | 5659 | 1783 | |
| Lanzarote | 670 | 2198 | 1824 | |
| Cordon Caulle | 1798 | 5899 | 1960 | |
| São Jorge Island | 1053 | 3455 | 1907 | |
| Vatnafjöll | 1235 | 4052 | 1200 BP | |
| Quetena | 5730 | 18799 | Unknown | |
| Nejapa Miraflores | 360 | 1181 | Unknown | |
| Manda-Inakir | 600+ | 1968 | 1928 | |
| Hertali | 900? | 2953 | Unknown | |
| Gran Canaria | 1950 | 6350 | less than 1000 BP | |
| Fuerteventura | 529 | 1736 | Unknown | |
| Estelí | 899 | 2949 | Unknown | |
| Butajiri Silti Field | 2281 | 7484 | Unknown | |
| Bishoftu Volcanic Field | 1850+ | 6069 | Unknown | |
| Alu | 429 | 1407 | Unknown | |
| Singu Plateau | 507 | 1663 | Unknown | |
| Ray Mountain | 2050 | - | Pleistocene | |
External links
A geographic coordinate system enables every location on the Earth to be specified in three coordinates using mainly a spherical coordinate system. Laki or Lakagígar ( Craters of Laki) is a volcanic fissure situated in the south of Iceland, not far from the canyon of Eldgjá and Lanzarote, a Spanish Island, is the easternmost of the Canary Islands, in the Atlantic Ocean, approximately 125 km off the coast of Africa Cordón Caulle is a Fissure vents system located in Los Lagos Region of Chile. São Jorge ( pron sɐ̃ũ 'ʒɔɾʒ(ɨ also known in English as San Jorge) is a Portuguese island in the central part of the Azores Vatnafjöll is a long wide Basaltic Fissure vent system that is located southeast of Hekla, Iceland. Manda-Inakir is a system of Fissure vents and Cinder cones located along the Ethiopia - Djibouti border Hertali is a Fissure vent in Ethiopia. The fissure vent was believed to have been active through the late Pleistocene to Holocene. Gran Canaria (in English " Grand Canary " is an island of the Canary Islands, an Archipelago located in the Atlantic Ocean 210 km from Fuerteventura, a Spanish Island, is one of the Canary Islands, in the Atlantic Ocean off the coast of Africa. Estelí is a city and Municipality within the Estelí department. Alu is a system of volcanic fissures, located in Ethiopia. The fissures have produced Silicic Lava flows and other fissures south of the The Singu Plateau is a Volcanic plateau located in central Burma. Ray Mountain is a Subglacial mound in Wells Gray Provincial Park, British Columbia, Canada.Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic