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Most viscous Felsic magma i.e. rhyolite

Intermediate magma i.e. andersite

Mafic magma i.e. Basalt

Ultramafic magma i.e. Komatiite

Least viscous

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Q: What are the magma types in order of decreasing viscosity?
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What list places the magma What list places the magma types in order of decreasing?

basaltic,andesitic,rhyolitic


What are the three types of magma composition?

The properties of the three types of magma depend with viscosity, density and temperature. This is usually determine by heat and how far the molten rock are far from the surface of the earth.


Where are tree types of magma found?

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What are the two types of magma?

The two main types of magma are mafic and felsic.


If basalt is in lava is the volcano explosive?

No. The more basalt the quieter the eruption. Basalt is deep deep material, from down where there are few volatiles to make lava explosive.


The types of magma?

Felsic, intermediate, mafic and ultra mafic are the four broad types of magma.


Why did Mount Vesuvius have so much ash when it erupted?

There are two major factors in how a volcano will erupt: the viscosity of the magma (underground molten rock) and how much gas is in the magma. Viscosity is the resistance of a liquid to flowing. For example syrup is more viscous than water. Magma varies in viscosity, and the magma that forms glowing red lava flows is of the least viscous type. The magma involved in the eruption that buried Pompeii was far more viscous, so it could not flow easily out of the volcano. Gas is what drives the explosive force of an eruption. The gas is trapped in the magma under pressure and is released as the magma nears the surface. The more viscous types of magma usually have more gas. This holds true at Mount Vesuvius. Even more gas was probably added as seawater seeped into the volcano and turned to water vapor. When the highly viscous, gas-rich magma of Vesuvius came out, the exploding gasses blasted it into tiny fragments, called ash, and which remained suspended in enormous ash clouds.


How do you find absolute viscosity of fluid?

Measuring the viscosity of the liquid with different types of viscosimeters.The more correct word is dynamic viscosity.


Which set of magma conditions produces the most explosive eruptions?

Magma is a hot fluid from deep within the Earth's crust. The set of magma conditions that produce the most explosive eruptions are high viscosity and the presence of dissolved gases.


Why can different types of igneous rock form?

Because there are different types of magma and different pathways for that magma to cool.


How many types of magma are there?

their are many types of magma because when a volcano has soft magma that means it either exploded small or the magma was going really slow and fast magma and big exploding volcano's are hard magma.:)


How do basaltic rhyolitic and andesitic magmas differ?

The difference between basalt lava and andesite lava is the chemical composition. Basalt lava comes from deep in the mantle of the Earth. Andesite's come from shallow sources near the continental plate margin.