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Why are some volcanic eruptions gentle and others violent and why do scientist make a distinction?
Wiki User
∙ 15y ago
Because it all depends on what type of volcano it is, if it is a shield volcano low and flat it's eruptions will be gentle. But if it is a cone volcano tall and steep it's eruptions will be very violent.
Wiki User
∙ 15y ago
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The most violent volcanic activity is associated with?
The most violent volcanic explosions are usually generated from composite volcanoes and andesitic lava flows. These types of eruptions can throw lava and other debris several miles into the atmosphere.
What is the difference between viscosity and volcanic erutions?
Viscosity is a measure of resistance to flow in a fluid. A volcanic eruption is a violent discharge of molten rock and ash.
What conditions make for a violent volcanic eruption?
Magma with high silica content
How was archean eon environment like?
The Archean Eon was a period of time where the Earth was very hot and wet. The oceans were also very warm. Thousands of volcanic eruptions ejected volcanic ash that bombarded the earth and dust into the atmosphere causing violent lightning storms and continual rain. During this timeline the Earth atmosphere was polluted with enormous amount of Carbon and Sulfur dioxide concentration. Such levels of chemical content in the atmosphere would be very dreadful to the majority of living beings in the Earth today.
Volcanic eruption types is the most violent?
Pelean
Only the most violent volcanic eruption feature?
Only the most violent volcanic eruptions feature a pyroclastic flow.
What shape is built up from numerous violent volcanic eruptions?
cone
What do only the most violent volcanic eruptions feature?
The most violent volcanic eruptions are found in destructive/convergent plate boundaries. 80% of the world's active volcanoes are found occur along destructive boundaries. Acid-lava and composite volcanoes also cause the most violent eruptions as the lava is viscous and the opening of the volcano is sometimes blocked by hardened lava, causing a huge massive explosion during the eruption.
Why are some volcanic eruptions gentle and others violent and why do scientists make a distinction?
It's because of the silica content. Some with high silica are explosive and violent. The ones with lower silica are gentle, and leak out. (might have it backwards. need to brush up on my volcano facts)
Can scientists predict volcanic eruptions?
Yes, scientists can predict volcanic eruptions, but only to a certain extent of accuracy. One method is to use earthquakes. Earthquakes usually increase and become more violent before a volcanic eruption
Are volcanic eruptions in the ring of fire generally quiet or violent?
Volcanic eruptions in the Ring of Fire are generally violent, though not all eruptions are. Kilauea is an example of a volcano that has relatively quiet eruptions, but it is a deep mantle hotspot volcano not part of the ring of fire system and its lava is low in water content. In general the volcanoes in the Ring of Fire that have violent eruptions including Mt. St. Helens, Mt. Pinatubo, Krakatoa, and Mt. Mazama because their lava is high in water content which increases the possibility of steam explosions during an eruption.
These volcanic eruption types is the least violent?
Which of these volcanic eruption types is the least violent? B. Hawaiian A. Pelean B. Hawaiian C. Strombolian D. Plinian
Moderate to violent eruptions throwing volcanic ash cinders and lava high in to the air?
Cinder Cone Volcano
Do volcanoes have a scale magnitude?
Volcanoes don't, but volcanic eruptions do. Volcanic eruptions are rated by Colcanic Explosivity Index or VEI based on the volcume of material ejected. It ranges from VEI-0 for the non-explosive eruption of lava to VEI-8 for the most violent eruptions of supervolcanoes.
What type of magma causes violent erpuptions?
Highly viscous felsic magma causes the most violent volcanic eruptions.
What kind of magmas produce violent volcanic eruptions?
Those that are rich in iron and magnesium.
Which of the volcanic gases can help to destroy the ozone layer?
Volcanic gases also destroy ozone. Mt. Pinatubo was one of the most violent eruptions that caused ozone depletion.
