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it is normally intermediate flow because of the silica content.

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Devon Smith

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3y ago

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If magma has high silica what will a volcano probably do?

high silica eruptions are generally explosive, giving rise to large abbounts of dust and may even result in pyroclastic flows. This happens because high silica melts are more viscous (thick) than low silica melts. If you see a nice river or fountain of lava, you can bet that it is relatively low in silica, probably a basalt.


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.


A magmas viscosity is directly related to its?

A magma's viscosity is directly related to its temperature and silica content. Higher temperatures and lower silica content result in lower viscosity, making the magma more fluid and able to flow more easily.


Do intermediate contains the least amount of silica?

No, intermediate magma typically contains a moderate amount of silica compared to other magma types. Basaltic magma has the lowest silica content, while rhyolitic magma has the highest silica content.


Why is silica rich magma associated with explosive eruptions?

Silica-rich magma has high viscosity, which can trap gas bubbles. When pressure builds up, the gas can cause explosive eruptions as it tries to escape through the thick magma. The high silica content also promotes the formation of explosive pyroclastic materials during an eruption.

Related Questions

What is the silica of magma that would result in a pyroclastic flow?

it is normally intermediate flow because of the silica content.


If magma has high silica what will a volcano probably do?

high silica eruptions are generally explosive, giving rise to large abbounts of dust and may even result in pyroclastic flows. This happens because high silica melts are more viscous (thick) than low silica melts. If you see a nice river or fountain of lava, you can bet that it is relatively low in silica, probably a basalt.


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.


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.


A magmas viscosity is directly related to its?

A magma's viscosity is directly related to its temperature and silica content. Higher temperatures and lower silica content result in lower viscosity, making the magma more fluid and able to flow more easily.


Do intermediate contains the least amount of silica?

No, intermediate magma typically contains a moderate amount of silica compared to other magma types. Basaltic magma has the lowest silica content, while rhyolitic magma has the highest silica content.


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.


What type of magma does the eyjafjallajokull produce?

Eyjafjallajökull volcano in Iceland produces andesitic magma, which is a type of intermediate magma that has a silica content between basaltic and rhyolitic magmas. This type of magma can lead to explosive eruptions due to its high viscosity, gas content, and tendency to form pyroclastic flows.


Does the increase in silica increase the viscosity of a magma?

it is normally intermediate flow because of the silica content.


Why is silica rich magma associated with explosive eruptions?

Silica-rich magma has high viscosity, which can trap gas bubbles. When pressure builds up, the gas can cause explosive eruptions as it tries to escape through the thick magma. The high silica content also promotes the formation of explosive pyroclastic materials during an eruption.