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If a volcano's magma is high in silica, the volcano will probably erupt explosively. If the magma is not high in silica, the volcano will probably erupt quietly.
silica-rich magma
It depends on how much silica is in the magma. If there is low-silica in the magma then the volcano will erupt quietly. If there is high-silica in the magma then the volcano will erupt explosively.
They feature magma with very high silica content.
The most explosive type of volcano, which is the type that has water, is called a boiler volcano. All active volcanoes have magma, and emit carbon dioxide. Magma can contain silica.
The more silica the volcano has, the more the pressure is occurring and eventually it becomes so strong that the volcano erupts .
well in volcanoes is magma, which when it is no longer in the volcano, is lava. and when a volcano is explosive, in the magma is silica. and silica makes the magma really sticky and thick. in a volcano, the magma comes out of vents at the top. and when magma with silica tries to comes out, it gunks up the vents to where they are clogged and nothing can get out of them. so when this happens, pressures pushes hard to try and get the magma out. then it pushes REALLY hard and it comes out even bigger and destructively! but when there is no silica in the magma, the magma just drizzles out of a volcano but its nonexplosive. hope this helps. and i know this is true. we just learned it in science class. I'm 11 years old but i am certain this is the correct accusation.
Magma needs a some sort of level of silica and gas.
a volcanoes magma chamber is at the bottom of the inside of the volcano, just at the botton of the tunnel shooting lava
magma and high silica content
the conduit feeds the magma to the surface and the volcano eruptes because of the weather or the volcanos figure was trapped.
The concentration of silica and water content in magma influence the force with which it is ejected from a volcano. The higher the levels of water and other gasses as well as the more silica it contains, the more explosive the eruption will be.