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Mount Ruiz's lava typically contains around 60% to 70% silica. The exact percentage can vary depending on the specific type of eruption and the composition of the lava flow. This high silica content contributes to the lava's viscosity and the explosive nature of eruptions associated with the volcano.
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Is mount st Helens high in silica or low in silica?
Mount St Helens produces mostly dacite lava, which is relatively high in silica.
What type of lava does mt hood have high silica or low silica?
Mt. Hood has lava with high silica content, resulting in a more viscous and explosive eruption compared to lavas with lower silica content. High silica lava tends to form more explosive eruptions due to its increased resistance to flow.
Does mount erebus have high silica or low silica?
Mount Erebus has high silica content in its magma, which makes it more viscous and prone to explosive eruptions. This high silica content contributes to the formation of ash clouds and lava bombs during eruptions.
What type of lava does mount usu have?
Mount Usu in Japan typically erupts with andesitic lava, which is a type of intermediate lava with a higher silica content compared to basaltic lava. Andesitic lava flows tend to be slower-moving and more viscous than basaltic lava.
Does mt.st.helens have a high or low silica content?
Because Mount Rainier is a Strato Volcano it has both quiet and explosive eruptions. Explosive(pyroclastic) flows have a high silica level. Quiet have low silica levels. The more silica the thicker the magma.
What is a mineral that effects the thickness of magama?
The more silica in lava, the more viscous the lava is. Silica (SiO2) content varies from 50 percent to 70 percent. Basaltic lava, which is 50 percent silica, is runny and contains relatively little gas. Granitic lava, typically around 70 percent silica, is 70 percent silica. It is much thicker and contains much more gas. As a result when granitic lava flows, it tends to release gasses (water and carbon dioxide) explosively. The lava on the Hawaiian Islands in basaltic, and flows easily. The lava in Mount St Helens is very thick, so when it finally reaches the surface it causes a much more violent and dangerous eruption.
Is mount st Helens high in silica or low in silica?
Mount St Helens produces mostly dacite lava, which is relatively high in silica.
What type of lava does mt hood have high silica or low silica?
Mt. Hood has lava with high silica content, resulting in a more viscous and explosive eruption compared to lavas with lower silica content. High silica lava tends to form more explosive eruptions due to its increased resistance to flow.
Was krakatau's erupted by lava rich in silica or lava low in silica?
lava rich in silica
What kind of lava does Mount Etna have?
stratovolcano
Which type of lava does mount Eyjafjallajokull have?
probably basaltic lava because the 2010 eruption was very explosive
Does mount erebus have high silica or low silica?
Mount Erebus has high silica content in its magma, which makes it more viscous and prone to explosive eruptions. This high silica content contributes to the formation of ash clouds and lava bombs during eruptions.
What type of lava does mount usu have?
Mount Usu in Japan typically erupts with andesitic lava, which is a type of intermediate lava with a higher silica content compared to basaltic lava. Andesitic lava flows tend to be slower-moving and more viscous than basaltic lava.
Does mt.st.helens have a high or low silica content?
Because Mount Rainier is a Strato Volcano it has both quiet and explosive eruptions. Explosive(pyroclastic) flows have a high silica level. Quiet have low silica levels. The more silica the thicker the magma.
What kind of viscosity lava does Mount Tambora have?
Mount Tambora typically produces highly viscous lava due to its high silica content. This results in the lava being thick and slow-moving, leading to more explosive eruptions.
Why does more silica make lava flow slow?
Silica-rich lava has higher viscosity, which means it is thicker and flows more slowly. The high silica content causes the lava to be more resistant to flow, leading to a slower movement. This can result in the formation of more explosive eruptions, like those seen with volcanoes such as Mount St. Helens.
What is the silica content of Mount Fuji?
Mount Fuji is primarily composed of andesitic to dacitic volcanic rocks, which typically have a silica content ranging from about 52% to 63%. This intermediate level of silica contributes to the volcano's stratovolcano structure, characterized by steep slopes and explosive eruptions. The varying silica content also influences the type of volcanic activity and lava flows associated with Mount Fuji.
