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What is the relationship between the viscosity of a magma and its temperature?
Wiki User
∙ 14y ago
Material that forms magma contains a lot of dissolved gas. When this dissolved gas expands it forms small gas bubbles called vesicles.
The more gas bubbles contained in the magma, the more violent the eruption. In magmas with a higher temperate gases remain dissolved, lowering its viscosity. A higher temperature also means a lower density - lava will be runny (less viscous).
When temperatures are lower crystallisation occurs, forming a more solid magma with a much higher viscosity. In viscous magmas the gases have a more difficult time escaping, causing a more violent eruption.
Wiki User
∙ 11y ago
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What is the relationship between silicon content and the viscosity of magma?
Although other factors such as temperature and water content also affect the viscosity of magma, silica-rich magmas tend to be more viscous than silica-poor magmas in similar situations.
Does temperature does temperature affect viscosity of magma?
High temperature=low viscosityLow temperature=high viscosity
What is the relationship in the silicon content and the viscosity of magma?
There is an inverse relationship between magma viscosity and silicon content. Lavas erupting from basaltic volcanoes (like Hawaii) have a much lower viscosity and are much hotter than those erupted by volcanoes whose magmas are rich in silicon. There may be up to 8 orders of magnitude viscosity difference between basaltic magmas (SiO2 contents or about 45 %) and rhyolitic magmas (SiO2 > 70 %).
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.
The viscosity of magma depends upon its silica content and its?
The viscosity is also dependent on temperature. Higher Temperature results in lower viscosities typically, i.e more runny.
What is the relationship between silicon content and the viscosity of magma?
Although other factors such as temperature and water content also affect the viscosity of magma, silica-rich magmas tend to be more viscous than silica-poor magmas in similar situations.
What is the relationship between silica content and viscosity?
magma that has more silica is more viscous
What is relationship between silica content and viscosity?
magma that has more silica is more viscous
How does temperature affect viscosity magma?
High temperature=low viscosityLow temperature=high viscosity
Does temperature affect viscosity of magma?
High temperature=low viscosityLow temperature=high viscosity
Does temperature does temperature affect viscosity of magma?
High temperature=low viscosityLow temperature=high viscosity
What 3 factors determine magma viscosity?
The three elements that determine viscosity in magma are:TemperatureSilicaOxides (gases)Viscosity changes the way in which magma will flow. Magma with low viscosity will flow much more easily than high viscosity magma.
What mainly determines the viscosity of a magma?
Viscosity is the measure of a liquids resistance to flow. In the case of magma, the hotter it is, the lower the viscosity.
What is the relationship in the silicon content and the viscosity of magma?
There is an inverse relationship between magma viscosity and silicon content. Lavas erupting from basaltic volcanoes (like Hawaii) have a much lower viscosity and are much hotter than those erupted by volcanoes whose magmas are rich in silicon. There may be up to 8 orders of magnitude viscosity difference between basaltic magmas (SiO2 contents or about 45 %) and rhyolitic magmas (SiO2 > 70 %).
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.
What determines the viscosity of magama?
temperature, silica content, and the amount of dissolved gases determine the viscosity of magma. For instance, if the magma is cold, has a high amount of silica and has lots of dissolved gases in it the viscosity will be very high.
The viscosity of magma depends upon its silica content and its?
The viscosity is also dependent on temperature. Higher Temperature results in lower viscosities typically, i.e more runny.
