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Super Volcanoes

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Introduction

Essay on Super Volcanoes There is no exact definition for a super volcano, but the expression is often used to refer to volcanoes that have produced extraordinarily large eruptions in the past. When one of these large eruptions occurs, a huge amount of material is blasted out of the super volcano, leaving a massive crater or caldera. A caldera can be as much as forty or fifty miles wide. At Yellowstone, the caldera is so big that it includes a fair amount of the entire park. In effect, it is so big that at first scientists didn't see the state a caldera had until it was photographed from space. Super volcanoes are formed when magma rises from the mantle to create a scorching reservoir in the Earth's crust and they start to form in layers. This chamber increases to a gigantic size, building up huge pressure until it finally erupts. After it finally erupts, the calderas collapses. When the reservoir has formed, a substance is collected that will trap the volcanic gases. They form depressions in the ground and it is very hard to imagine the eruptions, explosions, car atrophic proportions that they cause. ...read more.

Middle

The last super volcano to erupt was Toba 74,000 years ago in Sumatra. It was ten thousand times bigger than Mt St Helens; it created a worldwide devastation dramatically affecting life on Earth. Three quarters of all plants in the northern hemisphere were killed. It is known however that lying underneath one of America's areas of great natural beauty, Yellowstone Park, lays one of the largest super volcanoes in the world. Scientists have discovered that it has been on a regular eruption cycle of 600,000 years. The last eruption was 640,000 years ago, therefore this shows the next eruption is late and could erupt at any moment. Scientists know that the collision of a Yellowstone eruption is terrifying to understand. Vast areas of the USA would be destroyed, the US economy would most likely collapse, and thousands of people might die. If these super volcanoes do exist, they would have many other effects in the world. For example, once the part of Yellowstone erupts, if it were to rise up to 30, 40, 50 km we would instantly be distinct. ...read more.

Conclusion

Magma floors kill ten thousands of people in an area every time and there is at least 1000 km of ash spread over the land, which affects a lot of things such as animals, plants etc. Overall, in my personal opinion, I believe that super volcanoes do exist as there are many pieces of evidence which has been proven to have been caused by those super volcanoes, such as the erupt death to animals millions of years ago and the last eruption at Yellowstone park. I think in the future, if anything were to happen, I would be worried, as many people would be, because it would be life changing for any few survivors who were lucky to actually survive. However, I feel that it is really scary and unimaginable to believe that one day we could all be distinct in a matter of time from these forces. It could be an end to animals, crops and human nature. From this evidence it is a possibility that a super volcano will erupt and cause mass destruction to everything on earth. The Yellowstone Volcano could erupt with 10,000 times the force of the explosion at Mount. St. Helens in 1980. ...read more.

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