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Q: What type of volcano is formed by a fluid and low viscosity magma?
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How viscosity affect volcanic eruptions?

Viscosity is how thick the magma is and this can impact on how much a volcano erupts and how it flows.


A volcano with a magma supply which is felsic and has a high viscosity will tend to have what type of eruption?

A volcano fed by felsic magma will tend to have explosive eruptions.


What is the viscosity of lava flow from a cinder cone volcano?

Viscosity refers to the amount of internal friction in a substance which affects the ease with which it flows. Magma has a wide range of viscosity depending on the composition of the magma. The viscosity increases as the silica content changes from basalt to rhyolite. The more viscous a magma is, the slower it flows.


How far can Kilauea the volcano erupt?

That depends on the forc of the eruption and the viscosity of the magma.


Why do shield volcano have weak eruptions?

They feature magma with very low viscosity


What are the two factors control the explosiveness of a volcano?

The viscosity of the magma and its gas content.


Would the typemagma mean the Eyjafjallajokull Volcano has high medium or low in viscosity?

And what was the type magma from the eyjafjell volcano? It was BASALTIC and baslatic magma is a LOW viscosity, which means when erupted the lava flows easily on very gentle slopes.


What two things does the appearance of a volcano depend on?

One factor that influences a volcanic eruption is the composition of the lava; the thicker the lava, the more explosive the eruption. Another factor is the level of pressure that forces magma up a pipe or vent; the higher the pressure, the more violent the eruption.


What is a volkano?

a volcano is formed by tectonic boundaries. when the magma in Earth's interior gets hotter, it rises out of a volcano which is like an opening. the magma goes out of the volcano.


What factors determine the force of a volcano eruption?

Factors that determine the force of an eruption are magma viscosity and gas content.


Does an increase in silica increase the viscosity of magma?

Yes. Viscosity is the resistance of a fluid to flowing. A high viscosity means low flowing (I specifically mention this because this is a huge pitfall) When silica content increases, and when temperature decreases, the viscosity of a magma increases along with it.


Correct order of decreasing magma viscosity?

The amount of viscosity present in magma depends on the amount of silica it has. A composite volcano produces rhyolitic lava which is very thick. A shield volcano produces a basaltic lava with less silica and significantly less viscosity.