1792 Mount Unzen erupted which devastated Japan. Mount Unzen is a group of active overlapping stratovolcanoes. They are located on the island of Kyushu which is Japan’s most southern main island. Not only was the Eruption deadly but the Mayu-Yama Lava domes collapsed which triggered a Mega-Tsunami that killed nearly 15‚000 people. This was one of Japans worst volcanic disasters. The Volcano has been dormant for 198 years until the early 1990’s when the volcano became active and erupted again in
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Nyiragongo; it is very much more than that though. Mt. Nyiragongo is a stratovolcano‚ a composite-cone volcano. It is on the African plate‚ where it is splitting in the middle at a divergent plate boundary. The type of lava in the enormous lava lake is melilite nephelinite‚ mafic lava‚ with low viscosity due to the low silica content. The magma is olivine melilititic formed by small-fraction partial melting at the base of the lithosphere. The rock that comes from Mt. Nyiragongo is melilite nephelinite
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whereby the flow of superheated lava over the area surrounding an erupted volcano changes the form of some of the existing rock from both sedimentary and igneous rocks into a metamorphic rock such as is the case with some forms of granite. PARTS OF A VOLCANO cross-section through a stratovolcano(vertical scale is exaggerated): 1. Large magma chamber2. Bedrock3. Conduit (pipe)4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank 9. Layers of lava emitted by the volcano10. Throat11
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A volcano is an opening in the earth ’s surface through which lava‚ hot gases‚ and rock fragments erupt. These openings are formed when melted rock from deep in the earth build up around the opening‚ and form mountains. When these openings erupt they shoot out huge fiery clouds over the mountain‚ and spew glowing rivers of melted lava down their sides. In some eruptions‚ red-hot ash and cinders shoot out the mountaintop‚ and large chunks of hot rock are blasted high into the air. Only a few spectacular
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offerings. Now let us ponder on the wonders of indie cafes to understand their phenomenal allure. Coffee…not for the faint hearted With a wide variety of painstakingly sourced beans‚ heavy duty equipments and an arduous process of brewing a single cup of coffee‚ it is clear that a majority of these cafés are targeted at coffee aficionados. Café’s such as Toby Estate‚ Forty Hands‚ The Broers Café‚ Jimmy Monkey Café‚ Loysel’s Toy and Smitten Coffee & Tea Bar produce coffee that rivals those of their
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of its summit changes with each eruption‚ and over the centuries a few lava flows have reached the coast. Over 1200 square meters of Etna ’s surface is covered with solidified lava. Etna offers skiing in the Winter months and breathtaking hikes in the woods during the Summer. There are also a number of smaller peaks on the slopes of Etna‚ and some interesting caverns. Since Etna is a strato volcano‚ with relatively cool lava temperatures and numerous openings (vents)‚ nobody ever knows precisely
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Disadvantages: Sea - during a volcanic eruption earthquakes happen‚ and tsunamis may be created. Also‚ if it is a volcanic island‚ the island may be destroyed‚ and there is no escape. Lava flow - these are very slow moving‚ but destructive as they cannot be stopped and they set fire to everything in their path. Pyroclastic flow - these are impossible to outrun‚ travelling at about 300 km/h‚ and are extremely destructive Mudflow/lahar - these are mud rivers that have the consistency of cement
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steam and then there are other types of eruptions where they quietly dispel large amounts of lava and then there are altogether violent explosions where large clouds of gas-laden debris is blown in the atmosphere. There are six types of eruptions: the “Strombolean” type eruption where huge blobs of molten lava fly from the summit crater to form arcs through he sky and collecting on the sides of the cone lava clots combined to stream down the slopes in fiery rivulets. the “Visuvian” type of eruption
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reaches the earth’s surface it is called lava. An eruption is caused by lava escaping from below the earth’s crust. This has many effects on the universe‚ explosive eruptions can change the surface areas around a volcano and disrupt drainage patterns‚ leading to long-term flooding. When volcanoes erupt they release a huge quantity of polluted clouds which make acid rain and acid rain can destroy small buildings‚ forests‚ and even living organisms. When lava and magma spreads they destroy nearly nine
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Mauna Loa is the biggest mountain in the world and one of the most active. It rises over 4 kilometers above sea level. Its coordinates are 19.4721 longatude and 155.5922 latitude. It is located in Hawaii. The 74.5 mile long volcano covers half of Hawaii. The massive volcano rises almost 2.5 miles above sea level. The volcano measures 56‚000 feet from its ocean floor base. One of the legends say that the goddess Pele was driven from her home by her sister. Every time Pele would thrust her digging
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