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What forms when the lava ejected is too thick to flow?
When the lava ejected is too thick to flow, it solidifies near the vent and can form a dome-shaped feature called a lava dome. Lava domes are typically made of highly viscous lava, which does not flow easily. They can grow slowly over time as more lava is added to the dome from the eruption.
What type of lava does Arenal have?
Arenal Volcano in Costa Rica mainly produces basaltic andesite lava. This type of lava is characterized by its intermediate silica content, which results in a thick, slow-moving lava flow.
Lava that is low in silica tends to?
Lava that is low in silica tends to have lighter rocks come out of it.
What is lava's resistance to flow?
The resistance to flow of lava depends on its viscosity, which is influenced by factors such as temperature, composition, and gas content. Lava with low viscosity (more fluid) flows more easily, while lava with high viscosity (more sticky) flows less easily. The resistance to flow can also be affected by topography and the presence of obstacles in the lava's path.
What is the relationship with silica viscosity and lava flow?
An increase in the silica content of a lava increases it's viscosity. Viscosity can be thought of as a fluids resistance during deformation to shear or tensile stress, or in more simple terms, how easy or difficult it is to make a fluid flow. As viscosity increases, a fluid will flow less easily, so a lava with a high silica content will be more viscous and will flow less easily / more slowly than a low silica lava.
This type of lava is thick stiff and does not flow easily.?
Aa
What forms when the lava ejected is too thick to flow?
When the lava ejected is too thick to flow, it solidifies near the vent and can form a dome-shaped feature called a lava dome. Lava domes are typically made of highly viscous lava, which does not flow easily. They can grow slowly over time as more lava is added to the dome from the eruption.
How many types of lava flow?
2. Thick or runny lava. Thick flows slowly, runny flows faster.
How does the temperature of lava affect how far the lava will flow?
The temperature of lava affects its viscosity, or how easily it flows. Hotter lava has lower viscosity and can flow more easily, often traveling further than cooler, more viscous lava. Cooler lava tends to be more sluggish and may not flow as far before solidifying.
What type of lava does Arenal have?
Arenal Volcano in Costa Rica mainly produces basaltic andesite lava. This type of lava is characterized by its intermediate silica content, which results in a thick, slow-moving lava flow.
Lava that is low in silica tends to?
Lava that is low in silica tends to have lighter rocks come out of it.
What is lava's resistance to flow?
The resistance to flow of lava depends on its viscosity, which is influenced by factors such as temperature, composition, and gas content. Lava with low viscosity (more fluid) flows more easily, while lava with high viscosity (more sticky) flows less easily. The resistance to flow can also be affected by topography and the presence of obstacles in the lava's path.
Area of rock that flows like a thick liquid?
The area of rock that flows like a thick liquid is called lava. Lava is molten rock that erupts from a volcano and can flow slowly downhill, resembling the movement of a thick liquid.
What is the relationship with silica viscosity and lava flow?
An increase in the silica content of a lava increases it's viscosity. Viscosity can be thought of as a fluids resistance during deformation to shear or tensile stress, or in more simple terms, how easy or difficult it is to make a fluid flow. As viscosity increases, a fluid will flow less easily, so a lava with a high silica content will be more viscous and will flow less easily / more slowly than a low silica lava.
What type of eruption produces a gentle flow of lava?
A type of eruption that produces a gentle flow of lava is called an effusive eruption. In these eruptions, lava flows steadily and slowly, typically without explosive activity. The lava tends to have low viscosity, allowing it to flow easily across the surface of the volcano.
What causes lava to flow easily?
the shelter of surrounding rock, allowing it to stretch out its particles
Is the lava from a shield volcano thick or thin?
silica content
