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How are volcanic eruptions affected by the type of lava?
The more silaceous the lava, (higher silica content), the more explosive the eruption.
What factor determaine the type of volcanic eruption?
The type of volcanic eruption is primarily determined by the composition of the magma beneath the volcano. Magma high in silica tends to be more viscous and leads to explosive eruptions, while lower silica magma tends to flow more easily, resulting in effusive eruptions. Other factors such as the presence of gas, the amount of pressure, and the shape of the volcano can also influence the type of eruption.
In a strombolian eruption the percent of silica changes?
Silica content in strombolian eruptions is typically low (around 50-52%), as they are characterized by the eruption of basaltic magma. This type of magma has a lower silica content compared to other types such as andesitic or rhyolitic magmas, which are associated with different types of volcanic eruptions like explosive ones.
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.
The type of magma that often produces a violent eruption can be described as?
felsic magma, which has high viscosity due to its high silica content. This high viscosity can lead to the build-up of pressure and gas bubbles, resulting in explosive eruptions.
How are volcanic eruptions affected by the type of lava?
The more silaceous the lava, (higher silica content), the more explosive the eruption.
What do lava flow made of pahoehoe and AA indicate about the type of volcanic eruptions that occured?
It was a quiet eruption and it was low in silica
What properties of magma help determine the type of eruption?
The properties of magma that help to determine the type of eruption are the magma's viscosity and its silica content. Those volcanoes that exhibit massive eruptions have a high viscosity and high silica content.
What factor determaine the type of volcanic eruption?
The type of volcanic eruption is primarily determined by the composition of the magma beneath the volcano. Magma high in silica tends to be more viscous and leads to explosive eruptions, while lower silica magma tends to flow more easily, resulting in effusive eruptions. Other factors such as the presence of gas, the amount of pressure, and the shape of the volcano can also influence the type of eruption.
Volcanic eruption types is the most violent?
Pelean
In a strombolian eruption the percent of silica changes?
Silica content in strombolian eruptions is typically low (around 50-52%), as they are characterized by the eruption of basaltic magma. This type of magma has a lower silica content compared to other types such as andesitic or rhyolitic magmas, which are associated with different types of volcanic eruptions like explosive ones.
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.
Scientists measure which element in order to classify magma?
Scientists measure the silica content in magma to classify it into different types based on its composition. The silica content determines the magma's viscosity, which impacts how easily gases can escape and influences the type of volcanic eruption that may occur.
What are two type of volcanic vents?
magma or lava dried after a volcanic eruption.
The type of magma that often produces a violent eruption can be described as?
felsic magma, which has high viscosity due to its high silica content. This high viscosity can lead to the build-up of pressure and gas bubbles, resulting in explosive eruptions.
What volcanic eruption type the most violent?
Pelean
What type of igneous rock has high amounts of silica?
Igneous rocks with high amounts of silica are classified as felsic rocks. Common examples include granite and rhyolite. These rocks typically have a lighter color and are less dense than mafic rocks, which have lower silica content. The high silica content contributes to their viscosity during magma formation and eruption.
