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Is it true that the more sycila magma contains the thicker the magma is?
no, it's silica
What do both silica and water do to magma?
Silica is silicon dioxide. Is is perhaps the most common compound on earth. In magma the amount of silica is key in determining the viscosity. More silica leads to a more viscous magma.
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
Why is silica rich magma explosive?
This is because silica-rich magma is thicker. The thicker the magma, the chance for the dissolved gas in there to escape is less likely. This causes an explosion. When the gases do escape, they cause an even bigger explosion
What mineral that affects magma thickness?
The mineral that affects magma thickness is silica. Magma with high silica content tends to be more viscous, resulting in thicker magma. Conversely, magma with low silica content is less viscous and flows more easily.
Does the increase in silica increase the viscosity of a magma?
it is normally intermediate flow because of the silica content.
Which flows easier high silica magna or low silica magna?
Low silica magma typically flows easier than high silica magma because low silica magma has lower viscosity, meaning it is less resistant to flow. High silica magma is more viscous due to the presence of more silica tetrahedra in its composition, making it thicker and more difficult to flow.
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.
What is a magma's viscosity directly related to?
A magma's viscosity is directly related to its temperature and silica content. Higher temperature and lower silica content typically result in lower viscosity, making the magma more fluid and runny. Conversely, lower temperature and higher silica content lead to higher viscosity, resulting in a thicker, more sticky magma.
Is the following sentence true or false high - silica magma has high viscosity?
True. High-silica magma, such as that found in rhyolitic compositions, has a high viscosity due to the increased bonding between silica molecules. This results in a thicker, more resistant flow compared to low-silica magma, which is more fluid and has lower viscosity.
How does silica affect the shape of a volcano?
High silica content in magma can lead to explosive eruptions and the formation of steep-sided volcanoes, such as stratovolcanoes. This is because high silica magma is thicker and more viscous, which traps gases and builds up pressure before erupting violently. The high viscosity of silicic magma prevents it from easily flowing, resulting in the steep shape of the volcano.
What three things indicate the thickness of magma?
Silica content: Magma with high silica content tends to be more viscous and therefore thicker. Temperature: Hotter magma is usually less viscous and flows more easily. Gas content: The presence of dissolved gases, such as water vapor and carbon dioxide, can affect the viscosity of magma, making it thicker.
