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What happens to the gases in it as magma rises toward the surface?
As magma rises, the gases contained within expand due to the decrease in pressure on them as they rise. This creates bubbles that float through the magma, Like the sudden decrease in pressure on the gas in a carbonated beverage when opening, it's container releases a mass of rising bubbles.
Do the gases trapped in the magma cause the magma to erupt to the surface?
No, the fact that the magma has such a low density is why it rises. However, gasses do effect the manner in which it erupts.
What happens to the dissolved gases in magma as the magma ascends towards the surface of earth?
As magma rises, the gases contained within expand due to the decrease in pressure on them as they rise. This creates bubbles that float through the magma, Like the sudden decrease in pressure on the gas in a carbonated beverage when opening, it's container releases a mass of rising bubbles.
When magma reaches the surface what happens to the gases?
The gasses bubble out of the magma, sometimes explosively.
What happens when magma rises to the surface?
It cools and solidifies into a sedimentary rock.
What happens to magma that rises though cracks on the seafloor?
It makes a volcano because as it rises it pushes up the sea floor and it rises.
What causes the gases in magma to expand?
When magma is underground it is under enormous pressure, which causes the gasses to dissolve in the magma. As the magma rises pressure decreases and the gasses come out of solution. All gasses expand when decompressed.
What happens when Magma with a large amount of dissolved gases tends to be?
very explosive.
What happens when temperatures of rock rises above its melting point?
The rock melts to form magma.
How is volcano eruption occur?
There are hot gases mixed with magma. Sometimes the pressure of the magma and hot gases increased a great deal when this happens the rocks deep inside the earth have melted on molten rocks which is called magma. This is how a magma occurs.
How does the release of trapped gases in magma cause a volcano to erupt?
Some of the trapped gas in a magma will be water vapour, but at very high temperature. As the magma rises in the volcanic pipe, the pressure will lower, and the entrained vapour will expand rapidly = an explosion.
Why does Magma tends to rise toward the Earth's surface?
Magma rises from the asthenosphere to the surface of the Earth. After it reaches temperature upward to 1000 degrees Fahrenheit, the magma starts to rise. Gases also aid in pushing the magma toward the surface, along with the tremendous pressure from the depth at which it originates.
