Yes.High viscosity magmas are thick whereas lower viscosity ones are thin and runny. Therefore higher the viscosity or the resistant to flow property , more violent will be the explosions.
As the magma rises up the mantle the confining pressure reduces which results in the release of potential dissolved gases from the melt.More the dissolved gases more violent will be the explosion.
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Yes, high viscosity and dissolved gases in magma can increase the explosivity of a volcano. High viscosity traps gases in the magma, building pressure until it's released explosively during an eruption. Dissolved gases, like water vapor and carbon dioxide, can create a more volatile and explosive eruption when they are suddenly released.
high viscosity and dissolved gas
Typically, high viscosity, high gas magma results in a Plinian (explosive) eruption. The gas pulverizes the magma into ash and may form lateral pyroclastic flows.
The two main factors that control whether a volcano eruption will be explosive or quiet are the viscosity of the magma and the presence of dissolved gases. High viscosity magma (thick and sticky) and high gas content tend to result in explosive eruptions, whereas low viscosity magma (thin and runny) and low gas content lead to quiet eruptions.
The viscosity of lava flow from a cinder cone volcano is typically high, leading to slower-moving lava flows. This is due to the higher silica content of the lava, which increases its viscosity. As a result, cinder cone volcanoes often produce short, thick flows that can cool and solidify quickly.
Factors that determine the force of an eruption are magma viscosity and gas content.