tourism are the major sources of income on this island. How it was formed‚ the Tectonic Plates Involved and What Type of Volcano is it? Mt Etna is a stratovolcano ( another name is a composite cone) which means that multiple layers of ash and solidified lava have formed this volcano. Mount Etna is formed on a convergent plate boundary‚ on two of the world’s active continental plates- the African and The Eurasian Plate. The Eurasian and African plates are moving past each other along most of the boundary
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volcano? Vents‚ lava‚ magma chamber‚ and ash 6. What is the difference between an explosive and a non-explosive eruption? Nonexplosive Eruptions * Most common type * Laval flows from them calmly. (can be huge amount) Explosive Eruptions * Rarer than nonexplosive eruptions * Are very destructive as pyroclastic materials are flung into the air. 7. What materials erupt from a volcano? Pyroclastic materials and lava. Types of lava: Aa * Lava pours out quickly
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eras they grew up in‚ different times associated with different tastes‚ each expressing a particular aesthetic. The parents generation is characterised by familiar 50s and 60s icons; theconformist‚ consumer-led boom of those years represented by lava lamps‚ functional interiors and social rituals like the barbecue. The younger generation wears the insignia of the 80s: jeans‚ T-shirts and the dream of fast money symbolised by a Landrover decorated with flames‚ all very reminiscent of the familiar
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Pompeii could have guessed what would follow. Around 1:00 Pm a firestorm of fatal gasses and molten lava erupted from Vesuvius‚ spreading fear and terror into the hearts of Pompeiians as they thought that the gods had abandoned them and the world was coming to an end. The destruction was maximized because of the weather conditions‚ it was so windy that lava and debris would cool mid-air‚ sending rock hard lava shards showering down on Pompeii.
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A stratovolcano is a tall‚ steep-sloped‚ nearly symmetrical volcanic structure. Its andesitic lava is mainly deposited from one enormous central vent. Typically‚ stratovolcanoes are the most violent type of volcano. Mount Nyiragongo is no exception. Raging fires‚ fierce tremors‚ plumes of smoke‚ and viscous lava flows that can range from one to one-hundred feet wide are all traits of a Mount Nyiragongo eruption. The volcano often spews dust and ash. It
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Factors that Affect the Rate of Reaction of Peroxidase Purpose: To determine the effect of various factors on the rate of reaction between an enzyme and its substrate‚ and also to determine the optimal ranges under which the enzyme activity is maximized. Also to determine whether saline and alcohol are inhibitors or activators Hypothesis: PH factor prediction: I predict that as the pH increases so the activity of the enzyme will increase until it reaches optimum pH range (pH 7) because the
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surrounding and supportive information. In the war ridden country of Africa’s Democratic Republic of the Congo lays Nyiragongo. Nyiragongo‚ one of the world’s most active volcanoes‚ is classified as a stratovolcano. It is composed of alternate layers of lava and ash. A group of scientists repelled into the crater to get a better examination and understanding of the volcano. Their intentions in examining it were to determine‚ or at least attempt to determine‚ when the next eruption could occur. Nyiragongo
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in the magma. These factors produce 2 main types of magma called acid and basic. The acid lava is the more viscous (66%+ rich silica) and so this is the more hazardous lava as it has more potential for explosion. The other‚ less viscous lava is the basic lava which has a 44-52% silica content and has a higher temperature of 1000-2000 degrees compared to the 600-1000 of the acid lava which allows the basic lava to run more smoothly and more fluid like. Most volcanoes occur at a plate margin because
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observed in organic materials exposed to high temperatures. It is one of the processes involved in charring wood‚ starting at 200–300 °C (390–570 °F)‚. It also occurs in fires where solid fuels are burning or when vegetation comes into contact with lava in volcanic eruptions. In general‚ pyrolysis of organic substances produces gas and liquid products and leaves a solid residue richer in carbon content‚ char. Extreme pyrolysis‚ which leaves mostly carbon as the residue‚ is called carbonization. The
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and hornblende with some quartz or biotite d. particles of volcanic ash welded together 4. When mafic lava breaks through fissures in the continental crust‚ which of the following often results? a. lava plateaus b. composite volcanoes c. lava domes d. pyroclastic sheets 5. Which scenario is associated with mafic magma? a. hot‚ fluid lava that forms a shield volcano b. hot‚ fluid lava that forms a stratovolcano c. an explosive eruption that ejects pyroclastic materials d. cool‚ viscous
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