“Volcanic and seismic events are major pieces of evidence towards proving that plate tectonics theory is valid’ Discuss the extent to which you agree with this statement (40 marks) The plate tectonics theory was made by a German named Alfred Wegener. He stated that a single continent existed about 300 million years ago named Pangaea and that it split into two continents of Laurasia in the north and Gondwanaland in the south. Today’s continents were formed by further splitting of the two masses
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3. Transform Boundary (San Andreas Fault‚ J. Tuzo Wilson) (slide 21) Faults (slides 22-24) and Folds (slide 25) Plate movement over Geologic Time (slides 26-29) Creation and change of Landforms (slides 30-33) Standard 8-3.7 Volcanic eruptions (Mt. St. Helens) (slide 32) Mountain building events (Appalachian vs. Himalayas) (slide 33) Tectonics and the Ocean Floor (slide 34) Standard 5-3.2 Continental margins (slide 35) Passive (slide 36) Active (slide 37) South Carolina Standards (slides
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preparation and planning can decrease effects can only be done by prediction. There are numerous ways in which volcanoes can be monitored but it does mean expense. The technology needed and the expertise in which to predict a volcanic hazard can only be generated by a good economy. Therefore some of the poorer countries cannot afford planning and such things. The impact that is experienced
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eruptions. Volcanic eruptions affect the climate of the earth in many ways (Zielinski et al 1997). Volcanic ash ejected during eruptions effect climate by reflecting solar rays back into space‚ and thus cooling the surface of the Earth. Another way volcanoes affect the Earth’s climate‚ is the emission of many different types of volcanic gasses. Volcanic gasses including CO2‚ H2O vapour‚ and different kinds of sulfur gasses such SO2 and H2S‚ affect the climate in very different ways (Robock 2000). CO2
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Analyse the factors that causes differences in the hazards posed by volcanoes around the world (40 marks) A hazard can be define as something which poses a level of threat the life‚ health‚ property or environment‚ a volcano can compromise all these things through the many hazards volcanoes presents. Such as lahars‚ flash flooding‚ landslides‚ pyroclastic flows‚ ash clouds and many others. There are factors which can influence the severity of the hazard and cause differences in them and can be classified
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One of Maui’s most visible attractions is the Haleakala National Park. It is one of the most outstanding places to watch a sunrise. It’s a two hour drive up the very curvy and steep road to the top of Mt. Haleakala. It gets very cold and often gusty at the summit. The temperature drops 3º for every 1000 feet of elevation‚ so at the Haleakala Visitor Center’s 9‚740-foot elevation (where most people watch the sunrise) it’s about 30º colder than at sea level‚ temperatures are often in the 40-degree
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Mount Etna 10‚922Ft (3329 meters) LOCATED IN ITALY : 37.73°N 15.00°E LAST ERRUPTED IN January 12‚ 2011 Mount Etna is one of the most active volcanoes in the world and is in an almost constant state of activity. Due to its history of recent activity and nearby population‚ Mount Etna has been designated a Decade Volcano by the United Nations. From about 35‚000 to 15‚000 years ago‚ Etna experienced some highly explosive eruptions‚ generating large pyroclastic
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Chapter 1: An Introduction to Geology What is geology‚ and what is the difference between physical and historical geology? Geology is the scientific study of the Earth and its major systems Physical Geology is the Study of the Earth’s composition. structure‚ and the processing that shape it Historical Geology is the Study of Earth’s history and the history of life With respect to why we study geology‚ in class I cited three areas of benefit to humanity where geologic knowledge is needed. What
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from Mt. Olympus. Zeus was the deemed the king of the Gods and Hera his queen. This pantheon of twelve Gods and Goddesses are considered the Olympians‚ representing primary aspects of life such as war‚ love and death. Six male gods exist in the pantheon‚ two (Zeus and Poseidon) were born of Titan Gods themselves and overthrew their father to rule the universe. Hades‚ their brother‚ also fought by their side‚ but after the victory he was given rule of the Underworld‚ so did not sit atop Mt. Olympus
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EOSC 114: Volcanoes Notes from Web Notes Lesson 1: Why Do Volcanoes Have Different Characteristics? A. Formation of Lava Magma is formed by melting preexisting rock in Earth’s interior For magma to rise through crust it must be: (1)less dense than the crust (2) runny enough to flow (3) hot enough to stay liquid Magma that cools to form solid rock = lava B. Composition of Magma/Lava Magma is composed of various proportions of: Oxygen‚ Silicon‚ Aluminum‚ Iron‚ Calcium and Potassium Mineral –
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