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The SiO4 tetrahedra continuously form bonds with adjacent ions and atoms, essentially causing the liquid to strik to itself.
What else can I help you with?
What is the cleavage of diorite?
Diorite is formed by the cooling of intermediate magmas underground.
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
Does the increase in silica increase the viscosity of a magma?
it is normally intermediate flow because of the silica content.
Explain how the presence of silica and water in magma increases the chances of an explosive eruption?
The higher the silica content of the magma, the more explosive the eruption. Magma enriched in silica has a higher viscosity (resistance to flow). Pressures are more likely to build up behind the thicker, high silica content magma and result in potentially more explosive eruptions.
What are the magma types in order of decreasing viscosity?
Most viscous Felsic magma i.e. rhyolite Intermediate magma i.e. andersite Mafic magma i.e. Basalt Ultramafic magma i.e. Komatiite Least viscous
Why are granitic magmas thicker than basaltic magmas?
Granitic magmas are thicker than basaltic magmas because they have higher silica content, which increases viscosity. The higher silica content leads to stronger bonding between the silica tetrahedra, making it more difficult for the magma to flow. Basaltic magmas, on the other hand, have lower silica content and are less viscous, allowing them to flow more easily.
What kind of magmas produce violent volcanic eruptions?
Magmas with high viscosity and gas content tend to produce violent volcanic eruptions. High viscosity magmas are thicker and have more difficulty releasing gas, leading to pressure build-up and explosive eruptions. This often occurs with felsic or rhyolitic magmas.
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.
Will rhyolitic magmas erupt at lower temperatures than basaltic magmas?
Yes, rhyolitic magmas are several hundred °C colder than basaltic magmas. This is because the melting point of a rhyolitic magma is much lower than that of basaltic magma. Instead of heating up rhyolitic magma much above its melting point it will ascend and either crystallize in the Earth's interior as a pluton or erupt.
How hot does magma have to be to explode?
The explosive potential of magma depends more on viscosity gas content than on temperature. Most magmas are at temperature of at least 700 degrees Celcius. Interestingly, the most explosive magmas are the high-silica magmas, which have lower melting temperatures.
Is basaltic magma wet or dry?
Basaltic magma is considered "dry" because it has relatively low water content compared to other types of magma. This is why basaltic eruptions tend to be less explosive compared to more water-rich magmas like andesitic or rhyolitic magmas.
Where is team magmas last hideout?
After you got the magma emblem, go to jagged pass. It will be there...
What do basaltic and granitic magmas have in common?
Basalt and Granite are both made from the same magma.
Why do mafic magmas tend to reach the surface much more often than silicic magmas?
Mafic magma is less viscous or more fluid than silicic magma in much the same way that water is less viscous than molasses. Mafic magma reaches the surface more often because it flows more easily.
How do you get the magma amblem on Pokemon Emerald?
you have to go to team magmas base and deafeat there leader in a battle.
What is the cleavage of diorite?
Diorite is formed by the cooling of intermediate magmas underground.
Does mafic magma explode?
Mafic magmas generally have lower viscosity and gas content compared to felsic magmas, so they tend to flow more easily rather than explode. However, in certain conditions where gas build-up is high and pressure is released rapidly, mafic magma may still explode, but it is less common than with felsic magmas.
