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Is lava with a high viscosity hotter than lava with a low viscosity?
Wiki User
∙ 12y ago
Higher viscosity (felsic) lava is typically less hot than the lower viscosity (mafic) lava. Felsic magmas can erupt at temperatures as low as 650 to 750 °C. Poorer in aluminum and silica than felsic lavas, and also commonly hotter, intermediate lava (in the range of 750 to 950 °C), tends to be less viscous. Mafic to ultramafic lavas are believed to erupt up to 1600°C in the past.
Wiki User
∙ 12y ago
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Does High viscosity lava flows faster than low viscosity lava?
No. Viscosity is a liquid's resistance to flow. So higher viscosity means a slower flow.
How does heat affect lava flow?
Heat effects the flow rate of lava because the hotter the lava is, the less viscous it is which allows it to flow faster than if it had a slow flow rate. If it has a low temperature, then the flow rate will be much slower because it has a high viscosity.
How thick is the lava from a cinder volcano?
The thickness of lava is generally dependent on the eruption rate of the volcano. The flow rate of lava is measured by the lava's viscosity. Highly viscous lava does not flow well or travel great distances. Low viscosity lava can flow for great distances.
Is pahoehoe fast or slow?
Pahoehoe is hotter than other lavas. It is basaltic lava, which is hotter than the other compositional varieties found on earth today. It is also generally hotter than a'a, another common variety of basaltic lava.
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.
Does High viscosity lava flows faster than low viscosity lava?
No. Viscosity is a liquid's resistance to flow. So higher viscosity means a slower flow.
How does heat affect lava flow?
Heat effects the flow rate of lava because the hotter the lava is, the less viscous it is which allows it to flow faster than if it had a slow flow rate. If it has a low temperature, then the flow rate will be much slower because it has a high viscosity.
Is the sun hotter than molton lava?
Yes. The sun is much hotter and even the hottest lava.
How thick is the lava from a cinder volcano?
The thickness of lava is generally dependent on the eruption rate of the volcano. The flow rate of lava is measured by the lava's viscosity. Highly viscous lava does not flow well or travel great distances. Low viscosity lava can flow for great distances.
Is pahoehoe fast or slow?
Pahoehoe is hotter than other lavas. It is basaltic lava, which is hotter than the other compositional varieties found on earth today. It is also generally hotter than a'a, another common variety of basaltic lava.
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.
Why is orange the fast flowing flow volcano?
The orand lavayou see is basaltic lava. One important aspect of a liquid is a property called viscosity, or the resistance to flow. For example, maple syrup has a higher viscosity than water. Compared to other types of lava, basaltic lava does not have a lot of silica in it. The low silica content makes the lava less viscous. Basalt also has a migher melting point than other types of rock, so the lava is hotter, so hot that it glows orange or red. The higher temperature also lowers viscosity, as it does for nearly all liquids.
Are hawaiian volcanoes low or high in viscosity?
A lava dome indicates lava with a very high viscosity. A low viscosity lava would flows away rather than build into a dome.
Is white lava hotter than red?
yes
What is the diffference between magna and lava?
the diffenence is tht manga is hotter than lava
Between mafic lava and felsic lava which flowsfaster?
Mafic lava is hotter than felsic lava and therefore flows faster.
Is magma hotter than fire?
Many will assume that lava is hotter. It may be hard to believe, but fire can generally get hotter. I guess that lava may be seen as wore due to the fact that it can smother.
