Jun 14, 2024 · The three factors that control the viscosity of lava are temperature, composition and dissolved gases. When the temperature is hotter, there will be less viscous. When the composition has a higher ...

Jun 14, 2024 · Higher silica content leads to higher viscosity due to the formation of stronger bonds between silica molecules, which hinders flow and increases resistance to deformation.

May 21, 2024 · Three main factors affect the viscosity of magma. They are composition, temperature of the magma and the amount of dissolved gases the magma contains.

May 30, 2024 · In explosive eruptions, magma has higher viscosity, creating a thicker, more pasty consistency. This leads to violent explosions and the ejection of ash, gases, and volcanic rocks.

Jun 9, 2024 · It is quite viscous with a high silica content.

Jun 24, 2024 · Krakatoa's magma viscosity was estimated to be relatively low, indicating it was more fluid-like. This low viscosity contributed to the violent explosive eruption in 1883, producing devastating ...

Jun 9, 2024 · Andesitic magma is in between basaltic and rhyolitic magma, with a moderate amount of silica. It has an intermediate density, cooling point, and viscosity compared with other types of magma.

Jun 11, 2024 · Silica is the mineral that determines magma viscosity. Magma with high silica content tends to be more viscous, leading to slower flow and potentially more explosive volcanic eruptions.

May 31, 2024 · The amount of viscosity present in magma depends on the amount of silica it has. A composite volcano produces rhyolitic lava which is very thick. A shield volcano produces a basaltic lava with ...

Aug 9, 2023 · It relates to viscosity because it is a measure of resistance of fluid and technically its magma's hardness.