A volcano is a vent, or opening, in Earth’s surface through which molten rock, gases, and ash erupt. Volcano Vent is a small shield volcano in northern British Columbia, Canada. vent 1 (vĕnt) n. 1. This breaks the outer surface of the rocks that have cooled since the last eruption. Definition of volcano vent in the Definitions.net dictionary. silicates Silicates are minerals composed of silicon and oxygen with one or more other elements. Definition: Fine fragments (less than 2-4 mm in diameter) of volcanic rock formed by a volcanic explosion or ejection from a volcanic vent. An opening permitting the escape of fumes, a liquid, a gas, or steam. The black area is the lava flows with a forest in places that were not covered with lava. Definition and characteristics Volcanic eruptions happen when lava and gas are discharged from a volcanic vent. Andesite is a common lava on these volcanoes although they may also erupt basalt, dacite and rhyolite at different times in their life cycle. (Physical Geography) an opening in the earth's crust from which molten lava, rock fragments, ashes, … In one dictionary definition, a volcano is a vent or opening in the earth's crust through which rock or lava is ejected. Crater. Term: Ash. The eruptive products have their thickest accumulation around the point source and build up a low-angle shield or higher-angle cone topography constituting the volcanic pile. The term volcano can also refer to the landform created by the accumulation of solidified lava and volcanic debris near the vent. What does volcano vent mean? nos. Their forms and orientations can be used to determine many characteristics of the eruption with which they were associated. Shield volcanoes usually form over hot spots in an ocean floor. Cinder cones (scoria cones) are small volcanoes that erupt basalt lava that is erupted from the vent of a volcano at its summit. Vents, of course, are the locations from which lava flows and pyroclastic material are erupted. Sometimes magma creates a path toward the side of the volcano. volcano rate (Noun) A vent or an opening in the earth's crust through which molten lava, ash, and gases are ejected. The magma erupting from the volcano is very fluid and breaks apart due to expanding gases while the lava is airborne. A volcano’s main vent is the weak point in the Earth’s crust where hot magma has been able to rise from the magma chamber and reach the surface. Definition: Volcanic rock (or lava) characteristically medium dark in color and containing 54 to 62 percent silica and moderate amounts of iron and magnesium. 4. 2012-2017 Ring of Fire Science CompanyAll rights It is one of the three small shield volcanoes in the Tuya Volcanic Field which in turn form part of the Northern Cordilleran Volcanic Province. Most of the rock studied and sampled at Volcano Vent is massive coherent basalt. The vent of the volcano can be located at the summit or on the flanks of the volcano. There are two main endmembers in a spectrum of pyroclastic vents in Hawai'i, spatter vents and cinder cones. The volcano vent is the place on the Earth's surface where molten rock erupts from the volcano. Vents are openings in the Earth's crust from which molten rock and volcanic gases escape onto the ground or into the atmosphere. 3. The main vent of a volcano is the outlet chamber in the Earth's crust that allows hot magma to reach the surface. The word also refers to the form or structure, usually conical, produced by accumulations of erupted material. To a novice eye, this could look just like the cone, when in reality, the peak's mouth is much … This material may flow slowly out of a fissure, or crack, in the ground, or it may explode suddenly into the air. The magma creates a new vent on the volcano which can cause an explosive eruption. Vents may consist of a single circular-shaped structure, a large elongate fissure and fracture, or a tiny ground crack. The throat of the volcano allows magma that is hotter than the surround layers of rocks to break through older rocks into the summit where a lava lake forms. … a vent in the earth's crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. Term: Basalt. . The volcano definition can be put as a generally conical landform like a hill or mountain with a vent (or opening) from where materials like lava, volcanic ashes, and other gases erupt. A volcano is a rupture 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. Silicates make up about 95% of the Earth's crust. The small hole at the breech of a gun through which the charge is ignited. ©Copyright In another, a volcano is a cone-shaped hill or mountain built around a vent. Lava Butte summit crater where volcano vent was located. Volcanic Vents: Magma emerges from the magma chamber of a volcano through openings called vents. The Kids Fun Science Bookstore covers a wide range of earth science topics. Web. In addition to the cone, volcanic activity … Stratovolcano— A conical volcano consist of layers of solid lava flows mixed with layers of other rock. Violent volcanic eruptions can produce calderas when the top of the mountain is blown away. Definitions.net. Cinder cone volcano — Doesn’t have any horizontal layers, and is instead a steep conical hill that gathers around and downwind from the vent. Volcano Vent is a small shield volcano in northern British Columbia, Canada. Caldera. Volcano definition is - a vent in the crust of the earth or another planet or a moon from which usually molten or hot rock and steam issue; also : a hill or mountain composed wholly or in part of the ejected material. We're doing our best to make sure our content is useful, accurate and safe.If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly. Volcano, vent in the crust of Earth or another planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and hot gases. 182 were donated in April This month, we are on track to donate 187. home recent additions webmaster page banners feed a child. Their differences are due mostly to the gas Volcano definition, a vent in the earth's crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. Composite volcanoes usually have their vent at the summit of the mountain. Click here to browse.Â. Get instant definitions for any word that hits you anywhere on the web! 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