Evaluate how plate tectonics theory helps our understanding of the distribution of seismic and volcanic events. Plate tectonics is a relatively new science. It’s partially explained in the sense that we still don’t know fully about how the plates came together‚ what they were before they were the seven continents we know today. We already know‚ or have a theory‚ about what our world was like a long time ago and so if we already know that the plates can pull and push against each other‚ then surely
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Thera‚ the volcanic caldera in Greece that violently erupted 3500 years ago spawning the myth of Atlantis‚ and wiping out most of the Minoan civilization‚ is deforming. Scientists suggest that this caldera‚ a crater-like volcano that has collapsed in the past‚ may erupt again‚ making the people of the island vulnerable. The deformation could cause many disasters such as tsunamis‚ earthquakes‚ and obviously eruptions. Scientists argue whether the volcanic caldera unrest is actually a threat to the
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birds. This shows that biological isolation is a major point of the uniqueness of the Australian environment. The Australian environment also has relative geological stability. The last volcanoes were active many years ago‚ and the last of the glaciers shrank and melted many years ago. We only had volcanoes and glaciers because of the separation of Pangaea therefore making the Continental Drift Theory. There is little geological activity to create or refresh fertile soils. The majority of Australia
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Pat I. Volcanoes and Volcanic Hazards (Chapter 4) 1. Between 2001 and 2012‚ 41 volcanic events occurred worldwide. 2. 11 eruptions with VEI>=3 erupted from 2001-2012 3. Some volcanoes that were erupted and associated with tsunamis are: * Name: Stramboli Eruption type: stratovolcano Location: Italy * Name: Soufriefe hills (2003) Eruption type: stratovolcano Location: W indies * Name: Soufriefe hills (2006) Eruption type: stratovolcano
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PHYSICAL ENVIRONMENT Philippines: Pearl of Orient “The Philippines is a country of many names. Maniolas - named by Claudius Ptolemy Ma-I or Mayi – Chinese Traders Archipelago of Saint Lazarus – Ferdinand Magellan Islands of East‚ Islands of the west – European Writers Philippine – Given by Rey Lopez De Villalobos in Honor of Prince Philip II : King of Spain Pearl of Orient Seas – the most romantic named given by the Spanish Jesuit Origin of the Philippines Location: The Philippines lies in Southeast
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The island of Oahu and the Big Island are formed from volcanoes with hot spots in the middle of the Pacific plates‚ as to why both islands have the same landscape such as mountains‚ and volcanoes. Another likeness is the location of the islands‚ both islands are part of the state Hawai’i and are two of the eight major Hawaiian islands. Furthermore‚ the two islands also share
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Geo Midterm – Review The Geographical Approach Geography = Only discipline that examines patterns of phenomena on Earth. Geographers are interested in locational aspects of Earth phenomena (can it be mapped?) * Physical geography involves natural phenomena * Human/cultural geography involves phenomena caused by inhabitants Many different fields of geography overlap one another. All geographers are interested in: * A focus on spatial relationships (terrestrial) * Geographic
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between true extinction and extirpation. Extirpation is the loss of a population‚ or loss of a species from a particular geographic region. A famous twentieth-century example is the extirpation of wolves from the Yellowstone region of Wyoming. The park service reintroduced wolves to Yellowstone in the 1990s‚ and these predators appear to be adapting well to their new home. True extinction must also be differentiated from pseudoextinction. Biologists studying the changes that take place in a lineage over
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it ranks 16th in the most important elements in the earth crust. Sulfur is a native element that is found commonly in salt domes in the gulf region of the U.S states not only is the element found their but is found also in active and extinctive volcanoes. It able to be extract commercially from pyrite once it mined. For domestic production about ninety percent is converted to Sulfuric acid. Our human body even needs sulfur to survive. It an important element because it contains amino acids that
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Helens the day before the 18 May 1980 eruption Post‚ north of Mount St. Helens‚ on the clear Sunday morning of May 18‚ 1980. Seconds later‚ Mount Pinatubo is part of a chain of composite volcanoes along the Luzon arc on the west coast of the island (area map). The arc of volcanoes is due to the subduction of the Manila The volcano experienced major eruptions approximately 500‚ 3000‚ and 5500 years ago. The events of the 1991 Mount Pinatubo eruption began in July 1990‚ when
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