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The magma that can produce a violent eruptions is those rich in silica,fluid,iron, and forming shield volcano.
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What kind of magmas produce violent volcanic eruptions?
Magmas with high viscosity and gas content tend to produce violent volcanic eruptions. High viscosity magmas are thicker and have more difficulty releasing gas, leading to pressure build-up and explosive eruptions. This often occurs with felsic or rhyolitic magmas.
What kind of magma produce violent volcanoes eruptions?
Rhyolitic magma. This type of magma is found where the gases can't escape like in volcanic eruptions. Because the gas can not escape, the magma becomes viscous, resulting in the explosions being violent and unpredictable. The other type of magma is Basaltic magma. This can be found where continent plates are pulling away from each other and the magma is nearer the surface. This allows the gas to escape and therefore the magma is less viscous and doesn't result in explosive volcanoes, here eruptions are gentle and 'rifts' are more likely, where lava is persistent. I hope this helps! :)
What kind of eruption is caused by Magmas with high silica content that is felsic magma?
Eruptions caused by magmas with high silica content, specifically felsic magma, are typically explosive in nature. This is due to the high viscosity of felsic magma, which traps gases until pressure builds up sufficiently to cause a violent release. As a result, these eruptions can produce pyroclastic flows and ash clouds, significantly impacting the surrounding environment. Examples include eruptions from volcanoes like Mount St. Helens and Mount Pinatubo.
What kind of volcano has a steep sides and a violent eruptions?
A stratovolcano, also known as a composite volcano, has steep sides and is known for its explosive eruptions due to the high viscosity of its magma. These eruptions are often characterized by the ejection of pyroclastic material, lava flows, and volcanic ash. Mt. St. Helens in Washington State is a famous example of a stratovolcano with violent eruptions.
What kind of eruptions do Kilauea?
they are slow eruptions that aren't really violent. Very rarely does a Hawaiian volcano throw out mountains of ash.
What kind of of volcanic eruption occurs when basaltic magma is present?
Basaltic magma usually produces a Hawaiian or Stombolian style of eruption.
Plinian eruptions are the most powerful type of eruption They are usually caused by what kind of magma?
Plinian eruptions are caused by highly viscous magma with high eruptive column heights, explosive fragmentation of magma, and high gas content, often derived from silica-rich (silicic) magma. This type of magma tends to trap gases leading to highly explosive eruptions characteristic of Plinian events.
What kind of lava do caldera volcanoes produce?
Caldera-forming eruptions do not involce lava flows but massive plumes of ash and pumice. The material produced is usually rhyolite. After a caldera-forming eruption, however, the composition can shift, especially since eruptions can be triggered by the mixing of different types of magma.
How can volcanoes sometimes have more then one kind of eruption?
Well, the magma reservoir or chamber beneath every volcano gets it's fuel from the Earth's mantle (a layer of seething magma). So every time a volcano erupts, emptying or lowering the level of magma in the chamber, some magma from the mantle will rise (over time) to fill the gap.
What type of eruption does MtFuji produce?
It is a composite volcano, so the kind of eruptions it has is explosive.
How does the viscosity of magma contrast in quiet and explosive eruptions?
Effusive eruptions occur when hot basalt magmas reach the surface allowing gases to escape easily as the magma erupts. Explosive eruptions occur where cooler, more viscous magmas reach the surface. The gases cannot escape as easily, so pressure builds up until the gasses violently blast out rock and lava.
Which factors determine how violent an eruption will be?
· It is determined by the primary factors of the magma's Temperature, its Composition, and the amount of Dissolved Gases it contains.
