what are two important factors that affect the explosiveness of a volcanic eruption
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- The two main factors are the viscosity and the gas content of the magma. explosive eruptions usually occur when magma approaches the surface and dissolved gasses bubble out so rapidly that it escapes explosively, creating clouds of ash and pumice.If there isn't enough gas this can't happen.onfidence votes 83.6K. The two main factors are the viscosity and the gas content of the magma. explosive eruptions usually occur when magma approaches the surface and dissolved gasses bubble out so rapidly that it escapes explosively, creating clouds of ash and pumice. If there isn't enough gas this can't happen.
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- It's not possible to prevent earthquakes and volcanic eruptions. However, careful management of these hazards can minimise the damage that they cause. Prediction is the most important aspect of this, as this gives people time to evacuate the area and make preparations for the event.he higher the sulfur content of these gases, the closer the volcano is to erupting. Gas samples may be taken and chemical sensors used to measure sulfur levels. The techniques available for predicting and monitoring volcanic activity are becoming increasingly accurate.
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Volcanic Eruption: Gases Released & Their Effects Volcanic eruptions emit water vapor and toxic gases into the atmosphere. Learn about the gases emitted from an erupting volcano, such as carbon dioxide, sulfur dioxide, hydrogen sulfide, hydrochloric acid and carbon monoxide and their effects in this video lesson.f significant amounts of these compounds are emitted from a volcanic eruption, they can irritate eyes and respiratory systems. Carbon monoxide can also be released during a volcanic eruption. Carbon monoxide is a gas you may have heard of as a dangerous gas that can come from a faulty heater or appliance in your home.
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Submarine volcano Effect of water on volcanoes. The presence of water can greatly alter the characteristics of a volcanic eruption and the explosions of underwater volcanoes in comparison to those on land. For instance, water causes magma to cool and solidify much more quickly than in a terrestrial eruption, often turning it into a volcanic glass.
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Volcano One such hazard is that volcanic ash can be a threat to aircraft, in particular those with jet engines where ash particles can be melted by the high operating temperature; the melted particles then adhere to the turbine blades and alter their shape, disrupting the operation of the turbine.
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Volcanic hazards The risk that can be associated with a volcanic hazard depends on the proximity and vulnerability of an asset or a population of people near to where a volcanic event might occur.arthquakes can occur due to volcanic activity. These earthquakes could produce topographical deformation and/or destruction of buildings, homes, cars, etc. There are two different types of these earthquakes: volcano-tectonic earthquakes and long period earthquakes.
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- There are both primary and secondary hazards which can be caused by volcanic eruptions. The primary hazards include pyroclastic flows, air-fall tephra, lava flows and volcanic gases. The secondary hazards include ground deformation, lahars (mudflows), landslides and possibly tsunamis in ocean floor volcanic eruptions. volcano is a landform created by magma from the earth's interior which penetrates through weaknesses in the Earths surface. Most volcanoes are formed at plate boundaries. They are classed in one of three categories of activity: active, dormant or extinct.
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Investigation into the Factors that affect the Viscosity of Magma There are two factors that affect the viscosity of glycerol, which means there are probably two factors that affect the viscosity of magma. The higher the temperature of the glycerol the less viscous it is. Granitic magma is hotter than basaltic so it is likely that it basaltic will be thicker. ...read more.
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- Many times people think that volcanic eruptions affect the economy through the destruction inflicted upon the landscape during an eruption: lahars and pyroclastic flows destroying bridges and homes, ash ruining crops and water, lava flows overunning communities.
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Chapter 13 â Sizes of Volcanic Eruptions Volcanic eruptions, like many geophysical phenomena, span a vast range of scales of size, rate, and duration. The mass of magma ejected during an eruption, the quantities of gas released, and the eruptive flux all vary by many orders of magnitude.
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What Causes Volcanic Eruptions? Eventually, it becomes enough to force the heavier magma through the volcano's vent, causing an explosive eruption. An eruption can also occur due to a collapse of the cinder cone of the volcano. Over time, lava flowing out of a volcano builds up more and more rock around the vent, and in some cases, that rock may become unstable.
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- Frequent readers of this column have learned that the explosivity of a volcanic eruption depends primarily on the type of lava being erupted. Hot, fluid lava (basalt), like that typical of Hawaiʻi, allows the easy release of volcanic gases, and hence, is not usually explosive.
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What factors determine the viscosity of a magma? What kinds of landcapes are produced by volcanoes whose lavas Best Answer: There are several factors: Higher temperature creates lower viscosity (more flow-able) Higher silica content creates higher viscosity (more sticky) Higher dissolved gas content creates higher viscosity Landscapes are affected by lava viscosity greatly.
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Volcanic Eruption: Gases Released & Their Effects The gases associated with a volcanic eruption are initially dissolved in magma, which is hot molten rock found in the deeper layers of earth. During a volcanic eruption these gases are released into the atmosphere. The most abundant gas expelled during a volcanic eruption is water vapor.Water vapor can benefit the planet by adding water to the water cycle. However, it could also impact climate change.olcanic eruptions emit water vapor and toxic gases into the atmosphere. Learn about the gases emitted from an erupting volcano, such as carbon dioxide, sulfur dioxide, hydrogen sulfide, hydrochloric acid and carbon monoxide and their effects in this video lesson.
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- Volcanoes form when magma reaches the Earth's surface, causing eruptions of lava and ash. They occur at destructive (compressional) and constructive (tensional) plate boundaries. The immediate effects of volcanic eruptions can be devastating, but they may be beneficial in the long term. When this pressure is released, eg as a result of plate movement, magma explodes to the surface causing a volcanic eruption. 2  The lava from the eruption cools to form new crust. 3  Over time, after several eruptions, the rock builds up and a volcano forms.
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- Use Back to return here. 1  The property of a magma that determines whether or not it has high viscosity: density. silica content. 2  Most stratovolcanoes tend to erupt: rhyolite. basalt. 3  This rock is so porous it often floats on water: gabbro. obsidian.  After steam, the most abundant component of volcanic gases: argon. carbon dioxide.
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How do volcanoes affect world climate? There is no doubt that volcanic eruptions add CO 2 to the atmosphere, but compared to the quantity produced by human activities, their impact is virtually trivial: volcanic eruptions produce about 110 million tons of CO 2 each year, whereas human activities contribute almost 10,000 times that quantity.
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Types of Volcanic Eruptions The most common type of volcanic eruption occurs when magma (the term for lava when it is below the Earth's surface) is released from a volcanic vent. Eruptions can be effusive, where lava flows like a thick, sticky liquid, or explosive, where fragmented lava explodes out of a vent.olcanologists classify eruptions into several different types. Some are named for particular volcanoes where the type of eruption is common; others concern the resulting shape of the eruptive products or the place where the eruptions occur.
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Volcanoes and Related Hazards cause of volcanic eruptions. molten rock gathers in magma chamber. The weight of the overlying rock creates overburden pressure, which is offset by the magma's fluid pressure. As magma rises and encounters less overburden, the fluid pressure is able to open fractures, creating possible pathways to the surface.
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- There are two main types of volcanic eruptions: Explosive and Nonexplosive eruptions. 2 people found this useful. Edit. Share to: 1  The Geological Significance and History of Tuff Rock Tuff is an igneous rock made from volcanoes.he types of volcanic eruptions are magmatic, phreatomagmatic, and phreatic. For a description of each type and different styles of each, refer to the link below.
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Trump drops 220 spots on the Forbes Billionaires List As a result, his position on the Forbes' ranking dropped 220 spots, leaving him tied with 19 others as the 544th richest person in the world. Forbes said that much of the decline in Trump's net worth is due to softness in the midtown Manhattan real estate market. Related: Trump to meet with Bill Gates, harsh critics of many of his policies Forty percent of Donald Trump's fortune is tied up in Trump Tower and eight buildings within one mile of it, according to the magazine. What happens in that micromarket does more to affect the net worth of Donald Trump than anything else in the world.
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- Molten rock (either magma or lava) near the atmosphere releases high-temperature volcanic gas (>400 °C). In explosive volcanic eruptions, sudden release of gases from magma may cause rapid movements of the molten rock. When the magma encounters water, seawater, lake water or groundwater, it can be rapidly fragmented. The rapid expansion of gases is the driving mechanism of most explosive volcanic eruptions. However, a significant portion of volcanic gas release occurs during quasi-continuous quiescent phases of active volcanism.
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Atom Explosive Volcanoes. Some kinds of volcanoes just sort of ooze out lava over time. This is generally when the lava is thin. Other volcanoes have thicker lava that can plug up the vent of the of the volcano. When this happens pressure can build up over a long period of time. When the pressure gets high enough, the volcano can erupt with a huge explosion. Huge amounts of lava and ash can spew from the volcano.
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Volcanic eruptions and environment VOLCANO EFFECT ON ENVIRONMENT. Volcanoes that have not erupted for some time are dormant, and volcanoes that have not erupted even in the distant past are called extinct. Volcanic activity and volcanic eruption is usually triggered by alterations of tectonic plates, resulting in landslides or earthquakes.
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- 1 On the atomic scale, the property that governs magma viscosity, type of volcano formed, and eruptive violence is: 2  average size of ions. 3  average charge of ions. 4  linkage of silica tetrahedra.
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Volcanic Pollution Background. A volcanic eruption is caused by the ascent of molten rock from the mantle through the asnethophere up to Earth’s crust. Figure 1 is a diagram of a volcanic eruption event; it illustrates all the processes and byproducts that occur during an eruption event (USGS, 2010).uring a volcanic eruption a mixture of gases and particulates are expelled. The discharge of gases can also occur between major eruption events; volatile gases such as hydrogen fluorine(HF) and carbon monoxide(CO) trickle out of cracks and fissure along the surface of the volcano (SDSU, 2000).