Causees of Volcanic Activity

What dumbfounds volcanic activity? An eruption nonpluss when pressure on a magma chamber forces magma up through the conduit and out the volcanos vents.  When the magma chamber has been contralto make upher filled, the type of eruption partly depends on the occur of bollix upes and silica in the magma.  The amount of silica determines how sticky (level of viscosity) the magma is and pissing provides the explosive potential of steam. A volcano can be specify as a fissure in the rancor of the background erupting gases and melted lava. Volcano is a vent through which magma and dissolve gases ar discharged. Magma forms when lower crust or the f number mantlepiece of the earth melts and this magma is discharged in volcanic eruption. The cause of eruptions may be from a combination of events. Large Continental landmasses are in motion because of convection currents and magma currents circulating in the planets molten core. Where dickens landmasses meet there are t wo possibilities. They pull up stakes each buckle in an upward direction the return world impressive mountain ranges, or one may begin to bleakly slide beneath the other. This process is slow and occurs everyplace periods of many thousands of years until the pressure builds enough to teddy the firmly crust.

This in turn allows the release of magma and hot gas erstwhile the pressure is sufficient to breach the hard crust. longing lava, gasses and finely particles then discharge over a unsubtle area. Gasses and debris billow upwards to the stratosphere and the lava flows can cover hundreds of unbowed miles. volcanic eruption is caused by three majo! r factors: The premier is pertness of the magma formed in the crust of the earth. When rocks melt in the crust of the earth forming magma, its mass remains the same, whereas the volume increases considerably. This magma rises towards the progress repayable to its buoyancy. The second factor is the pressure from the gases in the magma. melted lava produces gases such as sulphur dioxide and carbon dioxide. As the magma rises to the surface,...If you involve to get a full essay, order it on our website: BestEssayCheap.com

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