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Mount Nyiragongo

2019-08-09 来源: 51due教员组 类别: Essay范文

下面为大家整理一篇优秀的essay代写范文- Mount Nyiragongo,供大家参考学习,这篇论文讨论了尼拉贡戈火山。尼拉贡戈火山位于戈马以北18公里,位于非洲中东部,人口60万。尼拉贡戈火山有世界上最大的持续熔岩湖,直径200米。它的直径是1.3千米,是一个山顶火山口。尼拉贡戈火山是由地壳断裂引起的,非洲板块的两部分正在断裂,尼拉贡戈火山是一个复合火山。尼拉贡戈火山的活动非常活跃,因为那里是热点地区。尼拉贡戈火山喷发时喷出的熔岩是由美利石浊石制成的不寻常的液体。它是一种富含碱的火山岩。其中不寻常的化学成分可能是导致熔岩不寻常流动性的一个因素。

Mount Nyiragongo,尼拉贡戈火山,essay代写,作业代写,代写

Mount Nyiragongo, which is 18 km north of Goma, locates on east-central Africa with population of 600,000. Mount Nyiragongo has the largest persistent lava lake in the world which is 200 m diameter. The diameter is 1.3 km, which is a summit crater. It is 1.5 km higher than Goma’s altitude.

Mount nyiragongo is caused by the rifting from the crust of earth, in which two parts of the African Plate are breaking apart(Demant, Lestrade et al., 1994), Mount nyiragongo is a composite volcano. There is great activity at Nyiragongo because of the hot spot. The lava emitted in eruptions at Mount Nyiragongo is unusually fluid which are made of melilite nephelinite. It is an alkali-rich type of volcanic rock. the unusual chemical composition of which might be a factor causing the unusual fluidity of lavas.

Despite the potentially dangerous dangers, there is still a great attraction to the people because of its fertile volcanic soil and close to the lake. What’s more, the destruction gave them the opportunity to build bigger houses.

The prime advantage of mount Nyiragongo is tourism(Erfurt-Cooper and Cooper, 2010). Mount Nyiragongo attracts visitors from worldwide every year. Erupting volcano is much easier to see and is blow red hot ash because of the wilder side of nature. Even the less active ones with steam and smoke have become impressive sights. Such sights have attracted many tourists from worldwide. Around mount Nyiragongo, many interesting places such as warm bathing lake, steam vents, and bubbling pools locate there. Jobs in markes, restaurants, hotels and parks are also created by tourism. Mount Nyiragongo is much important in the process of transforming eastern Congo into a tourist attraction for optimistic businessmen. Operators of tour also hire porters to carry tents as well as hiring tourism guides and teaching English.

There are precursory signals for eruption of Nyiragongo. The observatory staff is also preparing plans for risk mitigation and evacuation for when Nyiragongo next erupts. There is a system of colors and sirens to advise the population if they need to evacuate Goma. Outside the observatory, a tattered flag hangs above a faded billboard warning residents of the different levels of alerts.

Is it worth living near volcano? The localized carbon dioxide, which is also known as mazuku, has killed many children. Without the wind’s dispersing effects, its effects can be deadly in places where the gas spread from high levels. For most people, Nyiragongo with a vast lake of fire is in the state of slumbering menace. According to local reports, however, a new vent in the northeast crater edge had been discovered on March 8th, 2016. Following by are rumblings from the volcano. More specifically, this could lead to a flank eruption in the near future. That’s mean people in such region are under great dangerous every day. Considering so many drawbacks from eruption, it is better not to live near volcano.

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