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Low or high viscosity in mount saint Helen's?

The magma beneath Mount St. Helens is typically of low viscosity due to its composition, which is rich in silica and gas. This low viscosity magma allows for gases to escape easily, resulting in explosive eruptions.


What magma composition of mt Saint Helen?

it was 2000 digrees faren height


How did mt st Helen happen?

It happened because of an overflow of magma.


How can the composition of magma affect the way volcano erupts?

If the composition of the magma is high in silica, the eruption will be explosive. The Eruption of Mt. St. Helens was an explosive eruption. If the composition of the magma is low in silica, it will produce a quiet eruption. The eruption(s) of Mt. Kilauea are quiet eruptions.


What is the type of magma does mt st helen have?

it is basaltic, granitic i dont know which one but one of them i think


Why do eruptions in Hawaii differ from the Mt. St. Helen's eruption?

The magma of the Hawaiian volcanoes has a basaltic composition, which means it has a low viscosity (it flows easily) and so can erupt easily without needing too much force behind it. This low viscosity magma cannot hold very much gas and so erupts effusively By contrast, the magma involved in the 1980 eruption of Mount St Helens had a dacitic composition, which has an extremely high viscosity. The high viscosity allows large mounts of gas to be stored in the magma under pressure. When the magma was exposed to lower pressure near the surface, the gas was released and expanded explosively, blasting the magma into ash and pumice.


What is the volume of magma Mt St Helens could hold?

Mount St. Helens could possibly hold up to 0.3 cubic kilometers of magma in its magma chamber. However, the exact volume can fluctuate based on various factors such as temperature, pressure, and composition of the magma.


How much magma can mt st Helen hold?

Mount St. Helens has a magma chamber that can hold approximately 2 to 5 cubic kilometers of magma. However, the exact capacity can vary due to geological processes and the dynamics of volcanic activity. Since its major eruption in 1980, the volcano has continued to evolve, affecting the size and characteristics of its magma reservoir.


How do you think the location of a volcano affects the magma composition?

The location of a volcano can affect the magma composition by influencing the source of the magma. Magma composition can vary based on factors like the depth of the magma source, the presence of subducted materials, and the amount of water and gases present. Different locations can have different geological conditions that influence the composition of the magma erupted by a volcano.


How does magma composition and the resulting eruption affect the form of a volcano?

If the composition of the magma is high in silica, the eruption will be explosive. The Eruption of Mt. St. Helens was an explosive eruption. If the composition of the magma is low in silica, it will produce a quiet eruption. The eruption(s) of Mt. Kilauea are quiet eruptions.


Why is magma not a mineral?

Magma is not a mineral becauseIt is liquid.It does not have a definite chemical composition.


What is Sunset Crater's magma composition?

Sunset Crater was fed by basaltic magma.