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What are the three factors that influence the explosive nature of volcanic eruption?
Wiki User
∙ 13y ago
following are the three factors affecting volcanic eruption or volcanic activity
1. temperature rise in interior which will cause rocks to melt
2. reduction in pressure which has already increased the melting temperature of rocks.
3. addition of fluids like water which helps in decreasing melting temperature of rocks
Wiki User
∙ 13y ago
Wiki User
∙ 11y agogas, water, and the viscosity of lava. This is the answer I got from Yahoo.answers but this is what I read from my schools science book: magma controls the lava flow and the way the volcano erupts. But that's only one factor so I wasn't sure if mine was right. I would suggest going with gas, water, and the viscosity of the lava or research it.
Wiki User
∙ 14y agoThe viscosity of the magma is the major factor. A more viscous (thick) magma will produce a more violent eruption This is controlled in part by the concentration of silica in the magma. A magma with low silica (<45%) will be runny and so the eruption will not be explosive. A magma with high silica (>60%) will be quite viscous and so the eruption will be violent.
The temperature of the magma is also a factor. A hotter magma will be less viscous, and I'm sure you've sensed a pattern by now.
One other factor is the amount of dissolved volatiles in the magma (chlorine gas, water and other gases). A magma with a lot of dissolved gases will form a lot of large bubbles. It is the bursting of these bubbles that causes an eruption to be explosive, so the more volatiles in the magma, the more violent the eruption.
Related to this is the presence of external water. When a magma interacts with water, the water is super heated and rapidly evaporates. This evaporation is explosive and creates a phreatomagmatic eruption Look up "fuel-coolant interactions" for more information.
Wiki User
∙ 13y agoViscosity, composition, and temperature
Wiki User
∙ 11y agocomposition temperature dissolved gases
Wiki User
∙ 11y agoheat
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What two things does the appearance of a volcano depend on?
One factor that influences a volcanic eruption is the composition of the lava; the thicker the lava, the more explosive the eruption. Another factor is the level of pressure that forces magma up a pipe or vent; the higher the pressure, the more violent the eruption.
How do bicarbonates influence biotic factors?
They buffer cells from extremes of pH
What are two of the four factors that can influence the rate of a reaction?
The concentration of the substances that react is one. The temperature is another.
The non living factors that influence an ecosystem?
they are abiotic factors, and they include temperature, water, air, soil, rocks and minerals, weather, etc.... the living organisms are biotic factors which includes, pretty much anything that is living.
Which factors affect water potential in living cells?
Some factors which influence water potential include gravity, pressure, and solute concentration. Adding solute lowers the water potential. An increase of pressure will increase the water potential.
What two principal factors determine the nature or explosive potential of a volcanic eruption?
The two principal factors that can determine the nature or explosiveness of a volcanic eruption is Temperature and Composition in terms of its water content, mineralogy and volatility.
What are the two factors that affect the explosiveness of a a volcanic eruption?
There are two factors that determine how explosive a volcano is. The two factors are the amount of gas that is present in the lava and how easy or difficult that gas can be released into the atmosphere.
Which factors help determine whether a volcanic eruption will be explosive or relatively quiet?
The volatile content of the magma. Weather water or Ice has ingres to the volcanic vent. The physical stability of the volcano.
What two factors control whether an eruption will be explosive or quiet?
Water vapor and silica
Two factors control whether an eruption will be explosive or quiet?
Water vapor and silica.
What are the two important factors that affect the explosiveness of a volcanic eruption?
Pressure and magma
What are the factors affecting volcanic eruption?
How full the magma chamber is and the amount of gas that is in the volcano.
What are the two factors the control whether a volcano eruption will be explosive or quiet?
water vapor and high in silica
How might a volcanic eruption affect the abiotic factors in an organism's habitat?
By destroying the homes of animals etc...
What factors determine the force of a volcano eruption?
Factors that determine the force of an eruption are magma viscosity and gas content.
What combinations is most likely to result in a violent volcanic eruption?
The most likely combination to result in a violent volcanic eruption is the presence of highly viscous magma (such as rhyolitic or andesitic magma) and a large amount of dissolved gas (particularly water vapor and carbon dioxide). These conditions can lead to a buildup of pressure within the magma chamber, causing a violent and explosive eruption. Other factors such as the presence of a vent or conduit for the magma to reach the surface and the structural weakness or faults in the volcano can also contribute to the severity of the eruption.
Identify and explain the 3 factors that effect the force of a volcanic eruption?
The silica content effects the force of a volcanic eruption because magma with a lot of silica is thicker and magma with less silica is thinner. The amount of dissolved gases in magma effects the force of a volcanic eruption because the less gas in the magma, the less pressure will be inside the volcano. The temperature of the magma effects the force of a volcanic eruption because the hotter the magma, the more runny it is.
