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Beau
RossThe composition of magma plays a significant role in determining its viscosity. Magma with a higher silica content will have higher viscosity, making it thicker and more resistant to flow. Temperature also affects viscosity, with higher temperatures leading to lower viscosity.
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Is ultramafic magma high in viscosity?
No. Ultramafic magma would have a low viscosity.
Which conditions make for a violent volcanic eruption?
Magma with low viscosity
Is thick and sticky a physical property of magma from an explosive eruption?
Yes, magma viscosity (thickness) and stickiness can be physical properties of magma from explosive eruptions. Higher viscosity and stickiness can lead to explosive eruptions because gas bubbles are trapped in the magma, building up pressure until a violent release occurs.
What is meant by the term viscosity when used in describing magma?
Viscosity in magma refers to its resistance to flow. Magma with high viscosity is thick and sticky, flowing slowly, while magma with low viscosity is more runny and flows more easily. Viscosity is influenced by factors like temperature, silica content, and gas content in the magma.
What does viscosity have to do with eruptions?
Viscosity of magma affects the explosiveness of volcanic eruptions. Magma with high viscosity traps gas bubbles, increasing pressure, leading to more explosive eruptions. In contrast, low viscosity magma allows gas to escape easily, resulting in less explosive eruptions.
