Exercise
Dissolved Gases in Magma and Eruption Pressure
Investigate the role of dissolved gases in building pressure within magma chambers. Learn how trapped gases influence the violence and timing of volcanic eruptions.
Questions
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MultiChoice
What is the most abundant gas dissolved in magma?
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MultiChoice
Besides water vapor, which two gases are common in volcanic emissions?
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MultiChoice
What happens to dissolved gases as magma rises toward Earth's surface?
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MultiChoice
Soda bottle opening is often used as an analogy for what volcanic process?
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MultiChoice
If magma has high viscosity and lots of trapped gas, what will result?
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MultiChoice
Why do gas bubbles get trapped easily in rhyolitic magma?
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MultiChoice
What instrument or method do scientists use to monitor volcanic gas emissions?
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MultiChoice
An increase in sulfur dioxide gas emissions from a volcano usually indicates what?
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MultiChoice
How do volcanic gases affect global climate after massive eruptions?
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MultiChoice
Which term describes small cavities in volcanic rocks left by trapped gas bubbles?
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MultiChoice
Pumice floats on water because of which physical property?
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MultiChoice
What drives the force of a volcanic blast?