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What determines the frequency and types of eruptions you can expect from a volcano?
The crystal and gas content and temperature of a magma help determine a volcano's eruption style. • Crystals in magma make it more viscous, so magma with a high crystal content is more likely to explode than flow. • Gases create explosions if they cannot easily escape from viscous magma, but they can also be released without explosions (or with only minor ones) from fluid magma. • High-temperature magmas usually erupt effusively, while low-temperature magmas cannot flow easily and are more likely to erupt explosively.
Do these hot spot volanoes tend to erupt more explosively than other volcanoes?
no they do not erupt more explosively. It depends on its gas and on its viscosity. an example is Kilauea in Hawaii it does not erupt explosively.
What is the source of materials for volcanoes that erupt in both ways How do we know?
The source of materials for volcanoes that erupt explosively and effusively primarily comes from the Earth's mantle and crust, specifically magma generated by the melting of these layers due to tectonic processes. We know this through geological studies, seismic data, and the analysis of volcanic rocks, which reveal the composition and behavior of the magma. Additionally, the characteristics of different eruptions can be linked to the gas content and viscosity of the magma, helping to explain why some volcanoes erupt violently while others produce gentle lava flows.
What does the amount of silica in a volcanos magma determine about its eruption?
If a volcano's magma is high in silica, the volcano will probably erupt explosively. If the magma is not high in silica, the volcano will probably erupt quietly.
What causes the difference between quiet and exploses eruptions?
It depends on how much silica is in the magma. If there is low-silica in the magma then the volcano will erupt quietly. If there is high-silica in the magma then the volcano will erupt explosively.
What has to happen for arenal volcano to erupt?
Magma has to enter the magma chamber beneath Arenal.
How does volcanoes from and erupt?
Volcanoes erupt when pressure from inside the earth pushes magma through a weakness in the earth's surface. As more and more magma erupts, the volcano is formed and grows.
Reservoir from which volcanic materials erupt?
Magma chamber? Or the lithosphere or a mantle plume, depending on where the volcano is.
Why did the Yellowstone volcano erupt?
It will erupt for the same reason that all volcanoes erupt: magma is collecting in the magma chamber and pressure is increasing. This will eventually reach a breaking point and result in an eruption. The chances of that occuring in our lifetimes however, are very small.
What is the hottest volcno to ever erupt?
What is the definition for volcano and magma
The force that cuases magma to erupt at the surface is provided by?
heat
What can erupt to bring a lava flow to earths surface?
magma
