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Does the increase in silica increase the viscosity of a magma?
it is normally intermediate flow because of the silica content.
What three things determine how thick or thin magma is?
The three things that determine how thick or thin magma is temperature, silica content, and gas content.
How do temperature pressure and fluid content affect the formation of magma?
The air affects magma. Once magma is released above ground, called lava, the air hardens it. While it is underground, the higher the temperature and pressure, the runnier the magma.
What does magma with high silica content form?
When it cools and crystallizes into rock, the rock will be described as felsic igneous rock. Examples of felsic igneous rocks are granite, rhyolite, and pumice.
Explain how the presence of silica and water in magma increases the chances of an explosive eruption?
The higher the silica content of the magma, the more explosive the eruption. Magma enriched in silica has a higher viscosity (resistance to flow). Pressures are more likely to build up behind the thicker, high silica content magma and result in potentially more explosive eruptions.
What element has the greatest effect on magma characteristics?
The silica content in magma has the greatest effect on its characteristics. High silica content makes magma more viscous and results in explosive volcanic eruptions, while low silica content produces runny magma and less explosive eruptions.
What effect does silica content on the characteristics of magma?
Silica is something in the magma, so it is a pretty important part of magma because it pretty much a part that makes magma!
Does Pinatubo have silicia?
The magma of all volcanoes contains silica. The 1991 eruption of Mount Pinatubo involved dacite magma, which has a high silica composition.
What is silicia and how does it affect how well magma will flow?
The more silica, the slower the lava flows and the more viscous it is.
What effect does silica content have on the charactersitics of magma?
The silica can make the magma flow slower and also can make the magma's color lighter.
Which is the most abundant in magma and has the greatest effect on its characteristics?
Silica is the most abundant component in magma and has the greatest effect on its characteristics. The amount of silica present determines the magma's viscosity, which in turn influences the explosiveness of volcanic eruptions.
What effect does silica content have on the magma?
Silica content makes the magma thicker which can cause a more explosive eruption, and also make it so more gases aer open to be trapped
What is silica content of magma that has a low viscosity?
low silica content (basaltic magma)
What is the silica content of magma that has low viscosity?
low silica content (basaltic magma)
Does magma having a silica content of 50 percent is more mafic than one having a silica content of 70 percent?
No, magma with a silica content of 50 percent is more felsic, while magma with a silica content of 70 percent is more mafic. Silica content is inversely proportional to magma's mafic or felsic classification.
Does the increase in silica increase the viscosity of a magma?
it is normally intermediate flow because of the silica content.
What causes the quiet erupt and loud erupt?
Loud Erupt: The magma is really thick It is cooler lava More silicia Quiet Erupt: Thin Hotter lava low silica
