Mt. Vesuvius : The Most Important Part Of History

869 WordsJun 24, 20154 Pages
In 79 AD, the people of Pompeii were oblivious to the fact that Mt. Vesuvius would erupt any second and would destroy the entire city. Because of this, the city of Pompeii as well as Mt. Vesuvius became legendary structure in history. Because Mt. Vesuvius is a geological phenomenon, many researcher wonder how this volcano formed and why the eruption was so big. Although the city of Pompeii is magnificent, Mt. Vesuvius is the most important part about the history of the region. Mt. Vesuvius was formed as a result of the collision of two tectonic plates, the African and the Eurasian. The Eurasian plate was subducted beneath the African plate, deeper into the earth. As the water-saturated sediments of the oceanic African plate were pushed…show more content…
Many of the volcanoes are either extinct or have not erupted for tens of thousands of years. This how the super volcano was formed but that doesn’t explain how the volcano erupted. An eruption of a volcano is one phenomenon that occurs in nature. Deep within the Earth, it is so hot that some rocks slowly melt and become a thick flowing substance called magma. Because it is lighter than the rock around it, magma rises and collects in magma chambers. Eventually some of the magma pushes through vents and fissures in the Earth 's surface. This is how a volcanic eruption occurs. Magma that has erupted is called lava. Some volcanic eruptions are explosive and other are not. The explosiveness of an eruption depends on how runny or sticky the magma is. If magma is thin and runny, gases can escape easily from it. When this type of magma erupts, it flows out of the volcano. Lava flows rarely kill people because they move slowly enough for people to get out of their way. Lava flows can cause considerable destruction to buildings in their path. If magma is thick and sticky, gases cannot escape easily. This causes pressure build up until the gases escape violently and explode. In this type of eruption, the magma blasts into the air and breaks apart into pieces called tephra. Tephra can range in size from tiny particles of ash to house-size boulders. Explosive volcanic eruptions can be dangerous and deadly. They can
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