- Magma erupts and cools so quickly that crystallization does not occur - Solidifies into a glass - Massive‚ Dark – Osideon - Bubbly‚ light – Pumice 3. Pyroclastic Materials - fragments of all sizes that are erupted explosively out of a volcano - Ash (<2mm) - Lapilli (2-64mm) - Blocks and Bombs (>64mm) 4. Gaseous Products - compounds bubble out of magma D. Explosivity of Magma 1. Factors Affecting Explosivity a. Gas Content – higher gas content have more explosive eruptions 2. Viscosity
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activity. This option open to the Italians is not an option for LEDC who don’t have the wealth or public education to set up these stations. In Montserrat their where no levels of monitoring at all due to Before 1995 there was no record of the volcano on Montserrat erupting so they thought their was no need so it was an unnecessary cost. In 1995 the eruptions of the Soufriere hills began it eruption which berried a town and eventually killed 20 people in an unexpected pyroclastic flow. Before
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twentieth century? The purpose of this report is to examine the cataclysmic eruption of Mount Pinatubo in June 1991. This volcano is located on the island of Luzon in the Philippines; a mere 90 kilometers (55 miles) northwest of the capital city of Manila (Rosenbu‚ 2010) (see Figure 1). Specifically‚ this report will give a vivid description and information about the volcano. It will discuss a variety of factors related to the eruption such as the consequences and aftermath of the phenomenon. It
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What makes Steven Kutcher and Carsten Peter so unique? They both are very intelligent people who live different lives than the “typical man”. Steven is an entomologist and bug trainer‚ and Carsten is a volcano enthusiast who lives for taking pictures of volcanoes. You currently may be asking yourself what the heck do these two men have in common? But they actually have a lot more in common than what you would think. Both of Steven and Carsten’s jobs are what they are very passionate about‚ and have
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changes from wet and cold during the winter months to dry and hot during the summer months. The coast of Seattle is responsible for the growth of its economy‚ due to the large number of commercial ports. Seattle is in the destructive range of several volcanos within Washington‚ most prominently‚ Mt. Rainier. Topography Seattle is surrounded by large bodies of water and mountainous terrain. The city itself lies on top of several hills‚ which include; Capitol Hill‚ Second Hill‚ Denny Hill‚ Beacon
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________________________ Lab 1. Volcanic Hazards VOLCANOES INTRODUCTION Few things excite the imagination as much as a volcanic eruption‚ one of nature’s magnificent spectacles‚ which can result in devastating consequences. The very word “volcano” brings to mind thunderous explosions‚ rivers of fiery orange lava‚ and images of smoking destruction. The actual capacity for destruction is not overrated -- volcanic eruptions are one of the most devastating of all geologic hazards. There are
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go away when the temperature gets warmer. Solar radiation received by the Earth also causes global warming. When the atmosphere gets polluted from carbon dioxide more radiation comes through and harms people. Earthquakes and volcanos affect the climate change. When the volcano erupts‚ the ashes from the cone come out and poisonous gases explode through the environment. Human influences also contribute to climate change by increasing in the CO2 levels. Carbon dioxide is greenhouse gas. That means
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The area of the shield volcanos approximately covers 35.02 sq. miles or approximately 90.69 sq. kilometers. The reason this geological activity occurs is because the African and Aegean plates collide and the African plate subducts under the Aegean Plate (“Santorini‚ Greece”).
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After Port-Louis‚ the capital city of Mauritius‚ Curepipe is the second most important city of our island both in terms of size and significance. The name Curepipe is gleaned from an eponymous town in France and today it is found only 18 km or 11 miles to the South of the Capital city of Port Louis. Mauritius is an eye-catching island‚ floating in the Western corner of Indian Ocean. The history of Curepipe being settled with its residents deals with the malaria epidemic that had broken out in 1867
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attempted to escape. "Pompeii‚ which was on the other side of Vesuvius‚ did not suffer from pyroclastic flows ( avalanches of hot ash‚ pumice and gas) like Herculaneum. Instead it was showered with lapilli (debris of rock fragments formed in the volcano). At first the situation did not seem as serious as it was in Herculaneum‚ and people tended to seek protection from the falling lapilli by taking shelter in their houses. It was not long before the weight of the lapilli on the roofs became so heavy
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