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Typically, yes. Larger volcanoes such as shield volcanoes erupt more frequently than smaller ones. However, the speed of eruption depends on the type of volcano and lava. If the volcano is an acid-lava volcano or a composite volcano, the eruption may be slow and noisy and the acidic lava is viscous, which means it flows slowly, and that it solidifies up the vent and block the lava from flowing out easily, creating a huge "BANG" during eruptions.
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∙ 15y ago
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∙ 12y agoit doesn't matter about the size it is how much pressure is in the volcanoe.
Wiki User
∙ 13y agoit would most likely be explosive eruptions because the lava formed by an explosive eruption is very slow, it is more likely to harden at the top of the volcano.
Wiki User
∙ 13y agoQuiet eruptions.
Wiki User
∙ 13y agoWhen the gas in magma is high in silica
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Which conditions make for a violent volcanic eruption?
Magma with low viscosity
What is the relationship between the viscosity of a magma and its temperature?
Material that forms magma contains a lot of dissolved gas. When this dissolved gas expands it forms small gas bubbles called vesicles. The more gas bubbles contained in the magma, the more violent the eruption. In magmas with a higher temperate gases remain dissolved, lowering its viscosity. A higher temperature also means a lower density - lava will be runny (less viscous). When temperatures are lower crystallisation occurs, forming a more solid magma with a much higher viscosity. In viscous magmas the gases have a more difficult time escaping, causing a more violent eruption.
What causes the most violent eruptions in volcanoes?
high viscosity in magma composition.
What does viscosity have to do with eruptions?
The viscosity of magma or lava will determine whether or not the eruption is explosive or quiet. Higher viscosity magma can result in explosive eruptions. Lower viscosity magmas tend to flow more freely.
How does the viscosity of the magma influence the type of eruption?
The viscosity of magma affects whether or not magma flows away or piles up during an eruption. Viscosity, along with volatiles (dissolved gases) and volume determine whether you have a peaceful eruption or a very violent one.
Which conditions make for a violent volcanic eruption?
Magma with low viscosity
What conditions make for a violent volcanic eruption?
Magma with high silica content
What is the relationship between the viscosity of a magma and its temperature?
Material that forms magma contains a lot of dissolved gas. When this dissolved gas expands it forms small gas bubbles called vesicles. The more gas bubbles contained in the magma, the more violent the eruption. In magmas with a higher temperate gases remain dissolved, lowering its viscosity. A higher temperature also means a lower density - lava will be runny (less viscous). When temperatures are lower crystallisation occurs, forming a more solid magma with a much higher viscosity. In viscous magmas the gases have a more difficult time escaping, causing a more violent eruption.
What causes the most violent eruptions in volcanoes?
high viscosity in magma composition.
What 3 factors determine magma viscosity?
The three elements that determine viscosity in magma are:TemperatureSilicaOxides (gases)Viscosity changes the way in which magma will flow. Magma with low viscosity will flow much more easily than high viscosity magma.
What does viscosity have to do with eruptions?
The viscosity of magma or lava will determine whether or not the eruption is explosive or quiet. Higher viscosity magma can result in explosive eruptions. Lower viscosity magmas tend to flow more freely.
How does the viscosity of the magma influence the type of eruption?
The viscosity of magma affects whether or not magma flows away or piles up during an eruption. Viscosity, along with volatiles (dissolved gases) and volume determine whether you have a peaceful eruption or a very violent one.
What mineral determines magma viscosity?
A magma's viscosity is directly related to its degree of silica content.
What factors affect magma's viscosity?
The two main factors that affect viscosity are temperature and silica content. Higher temperatures lower viscosity while higher silica content increases viscosity.
Does high viscosity and dissolved gases increase volcano explosions?
Yes.High viscosity magmas are thick whereas lower viscosity ones are thin and runny. Therefore higher the viscosity or the resistant to flow property , more violent will be the explosions. As the magma rises up the mantle the confining pressure reduces which results in the release of potential dissolved gases from the melt.More the dissolved gases more violent will be the explosion.
What type of magma do highly explosive volcanoes have?
Many have rhyolitic magma, which is high in silica. Magma with higher viscosity and higher gas content is the most explosive when released.
What is meant by the term viscosity when used in describing magma?
The ease with which it flows or how thin or thick it is. the more solid it is the higher the viscosity. As in Oil the thicker it is the higher the viscosity machine oil low viscosity, gearbox oil high viscosity.
