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Methane
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∙ 12y ago
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What melts to form rhyolitic magma?
Rhyolitic magma is a gas. The rhyolitic magma usually has to largest gas contents.
What is the most abundant dissolved gas in magma?
The most common dissolved gas in magma is water vapor, or H2O. Other important gases that may be present in magma and released during volcanic eruptions are carbon dioxide, sulfur dioxide, and hydrogen sulfide.
What gas is produced when hot magma rises?
Various gasses escape from magma. Water vapor is the most abundant, but other common gasses include carbon dioxide and sulfur dioxide.
What Gas Content does a Shield Volcano have?
Magma in a shield volcano usually has a low gas content.
How does gas affect a volcano eruption?
Volcanoes vary a lot in how they erupt. The most important factor is the gas content of the magma. All magmas have gases dissolved in them, in the same way that soft drinks have carbon dioxide dissolved in to make them fizzy. As the magma gets close to the surface, the pressure on the magma decreases. That causes some of the gas to bubble out of the magma. Magma with low gas content comes out of the volcano without violent explosions and then flows peacefully down the sides of the volcano.
What gas is found in magma?
Magma contains a variety of gasses, the most common of which are water vapor, carbon dioxide, and sulfur dioxide.
What melts to form rhyolitic magma?
Rhyolitic magma is a gas. The rhyolitic magma usually has to largest gas contents.
What is the most abundant dissolved gas in magma?
The most common dissolved gas in magma is water vapor, or H2O. Other important gases that may be present in magma and released during volcanic eruptions are carbon dioxide, sulfur dioxide, and hydrogen sulfide.
How is gas stored in a volcano?
Gas is stored in the Magma chamber at the bottom of the volcano, along with the magma.
What gas is produced when hot magma rises?
Various gasses escape from magma. Water vapor is the most abundant, but other common gasses include carbon dioxide and sulfur dioxide.
Is magma made of 50-70 percent oxygen?
It could be, but magma differs depending on its gas percentage. The lower gas percentage it has, the smoother the magma flows. if it has a high gas percentage, it is usually explosive.
Where was the gas before it shot out of the volcano?
The gas was trapped in the magma.
What gas is formed in magma?
steam
What Gas Content does a Shield Volcano have?
Magma in a shield volcano usually has a low gas content.
How does gas affect a volcano eruption?
Volcanoes vary a lot in how they erupt. The most important factor is the gas content of the magma. All magmas have gases dissolved in them, in the same way that soft drinks have carbon dioxide dissolved in to make them fizzy. As the magma gets close to the surface, the pressure on the magma decreases. That causes some of the gas to bubble out of the magma. Magma with low gas content comes out of the volcano without violent explosions and then flows peacefully down the sides of the volcano.
If the magma of a volcano has a high amount of dissolved gas what type of eruption will the volcano have?
Typically, high viscosity, high gas magma results in a Plinian (explosive) eruption. The gas pulverizes the magma into ash and may form lateral pyroclastic flows.
How does does gas behave at different depths in a magma and how does it influence eruptive style?
At most depths, gas is dissolved in the magma under pressure. When the magma gets close to the surface the gas comes out of solution, forming bubbles which expand rapidly. If enough gas is present in the magma, this expansion results in eruptions that take the form of violent explosions and generate large clouds of ash.
