Evaluate how Plate Tectonic Theory helps our Understanding of the Distribution of Seismic and Volcanic Events (40 marks) The Plate Tectonic Theory developed in the late 1960’s‚ when people noticed how continents either side of the Atlantic Ocean seemed to almost fit together. Francis Bacon‚ an English Philosopher was aware of this as early as 1620. Topographical and geological evidence built up and allowed Alfred Wegener to publish a theory in 1912‚ suggesting that the continents were once all joined
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which include electronics‚ medicine‚ dentistry‚ computers‚ awards‚ pigments‚ guilding‚ and optics. Typically gold is found in veins of quartz called reefs. These reefs are formed as a result of magma being intruded into solid rock. As the magma solidifies water and other substances separate from the magma as a result of pressure‚ this pressure causes fissures in the surrounding rock and allows mineral deposits to settle and form and they create veins of quartz and this allows the gold to travel though
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Minerals and Rocks Minerals Minerals: Minerals are elements or compounds found in the earth. The elements or compounds are called minerals if they have five features. They are solids. They are formed naturally in the earth. They have the same chemical makeup throughout They are not alive or made of living things. They have definite arrangement of atoms. 3‚000 different minerals are found in the earth. Some are common but most are rare. Aluminum‚ quartz‚ feldspar
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Cited: Carey‚ Steven‚ and Sigurdsson‚ Haraldur‚ 1987‚ "Temporal variations in column height and magma discharge rate during the 79 A.D Casadevall‚ Thomas J.‚ 1994‚ “Volcanic ash and aviation safety: proceedings of the First International Symposium on Volcanic Ash and Aviation Safety”‚ U.S Chester‚ D.K.‚ Degg‚ M. and Duncan‚ A.M‚ 2000‚ "The increasing
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Mantle: The thick layer between earth’s crust and core.Made of igneous rock(iron/magnesium) Has 3 zones 1.Lower:solid 2.Asthenosphere:The part of the mantle that lies below the lithosphere; it behaves plastically&flows slowly. Partial melting creates magma which rises less dense 3.Upper:Surrounds the Asthenosphere and is solid. The mantle take up83% of earths volume. Lithosphere:Earth’s outer‚ rigid part‚ consisting of the upper mantle‚ oceanic crust‚ & continental crust. Plates: The lithosphere broken
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Volcanoes A volcano is an opening‚ or rupture‚ in the surface or crust of the Earth or a planetary mass object‚ which allows hot lava‚ volcanic ash and gases to escape from the magma chamber below the surface. The word volcano is derived from the name of Volcano‚ a volcanic island in the Aeolian Islands of Italy whose name in turn originates from Vulcan‚ the name of a god of fire in Roman mythology. The study of volcanoes is called volcanology. Divergent plate boundaries: At the mid-oceanic ridges
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1. A ________ is a well-tested and widely accepted view that best explains certain scientific observations. Answer | | hypothesis | | | generalization | | | law | | | theory | 2 points Question 2 1. What are the basic differences between the disciplines of physical and historical geology? Answer | | physical geology is the study of fossils and sequences of rock strata; historical geology is the study of how rocks and minerals were used in the past |
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Nearly six hundred and fifty thousand years ago a massive volcano in the western part of North America blew its top in a super-eruption. This tremendous eruption spewed deadly toxins‚ ash and debris into the in huge billowy plumes. Its dust and grime traveled nearly two hundred and fifty miles coving a good portion of the United States. The force of this massive volcano’s explosion was so powerful‚ that it collapsed in upon itself. This was known as the Lava Creek eruption and formed what we now
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Class: SOSE Yr: 9 Name: Fariha Ibnath Khan 1: Hot spot: Hot spot is a place away from the boundary where a trail of super-heated magma that rises up from the mantle and forces its way to the surface of the Earth. Continental drift: Movement of the Earth’s continents comparative to each other by appearing to drift across the ocean bed. Tectonic Plate: Large pieces of the Earth’s crust that float on the mantle. These plates are constantly moving and may
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boundary is associated with __________. a) b) c) d) e) decrease in pressure addition of water increase in pressure increase in temperature none of the above 5) The volcanoes associated with this plate boundary generally erupt ________ magmas. a) b) c) d) mafic intermediate low viscosity ultramafic 6) Which of the following was not a piece of evidence Wegner used to support continental drift? a) b) c) d) e) paleoclimate data geometric fit of continents fossil distributions
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