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.
Felsic magma
rhyolitic magma has a lot of silica and water vapors... thanks for asking answers.com ;)
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.
Rhyolitic magma typically contains a high amount of silica and water vapor. It is known for its high viscosity and tendency to produce explosive eruptions due to the buildup of gas pressure within the magma chamber.
Basaltic magma is low in silica compared to andesitic or granitic magma.
Felsic magma
The three types of magma, named for the rock they form are basaltic, rhyolitic and andesitic. Rhyolitic magma is rich in silica and water vapor.
Silica in natural form can be both particles or thick on fusion as in felsic magma origin
Silica, Water and carbon dioxide.
rhyolitic magma has a lot of silica and water vapors... thanks for asking answers.com ;)
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.
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.
Rhyolitic magma typically contains a high amount of silica and water vapor. It is known for its high viscosity and tendency to produce explosive eruptions due to the buildup of gas pressure within the magma chamber.
Basaltic magma is low in silica compared to andesitic or granitic magma.
The amount of silica and water affect the viscosity of the magma. The more viscous the magma, the slower the flow rate and the shorter and the thicker the flows. Silica makes for a more viscous magma.
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.
it is normally intermediate flow because of the silica content.