Describe the type of tectonic and seismic activity which occurs at each plate boundary (25 mark) In the theory of plate tectonics, the earth's crust is broken into plates that move around relative to each other. As a result of this movement, three types of plate boundaries are formed: Divergent, Convergent- Oceanic/Continental & Continental/Continental, and Transform boundaries. Not all plate boundaries fit into the main groups shown above. In some parts of the world the boundaries are not
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molten rock are both extruded and intruded during an eruption. The plate tectonic theory was developed by Alfred Wegener in 1912, however initially his theory of how the plates all ‘fit together’ was ignored as there was simply not enough evidence. After technology had significantly advanced later in the 20th Century, the theory was developed further by several scientists. This theory suggests that the crust is split into a number of plates, all of which float on molten mantle rock and are constantly moving
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According to the plate tectonic theory, the earths crust is made up of 8 main plates, as well as a number of smaller ones. These plates float on top of the asthenosphere and move around quite regularly. This movement causes interaction between the plates which is thought to bring about seismic and volcanic events at its margins. Therefore the plate tectonics theory is a key concept in understanding the distribution of seismic and volcanic events. Plate tectonic theory was first suggested by Alfred
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proving that plate tectonics is valid' Discuss the extent to which you agree with this statement. The theory of plate tectonics states that the Earth's lithosphere is fragmented into a dozen or more large and small rigid sections called plates that are moving relative to one another as they float on top of the underlying semi-molten mantle. If we map out the divisions between these plates, it would correlate significantly with the distribution of volcanoes around the world. These plates are either
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towards proving that plate tectonics theory is valid” Discuss the extent to which you agree with this statement. (40 Marks) The theory of plate tectonics is a relatively new idea – only conceived and developed within the last 100 years and is now generally accepted as the explanation for the causation of earthquakes and volcanoes and where they occur. It has now replaced the theory that tectonic events are caused by god in most western countries. The theory of plate tectonics was first developed
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towards proving that plate tectonics theory is valid”. Discuss the extent to which you agree with this statement. Plate tectonics is the theory that suggests that the Lithosphere is separated up into approximately twelve plates that can be moved around via convection currents, changing the land and sea formations across the globe. Since interest began during the early 20th century a variety of propositions have been put forward to suggest the existence of plate tectonics. The most prominent of
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Seismic and volcanic events are major pieces of evidence towards proving that plate tectonic theory is valid. Discuss the extent to which you agree with this view. (40) Plate tectonics is the theory that explains the structure and motion of the Earth’s lithosphere. The theory states that the Earth’s crust is split into large sections called tectonic plates, and these move relative to one another creating boundaries at which plates converge, diverge and move past each other. Alfred Wegener pioneered the
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Plate tectonics is the theory that explains the structure and motion of the Earth’s lithosphere. The theory states that the Earth’s crust is split into large sections called tectonic plates, and these move relative to one another creating boundaries at which plates converge, diverge and move past each other. Alfred Wegener pioneered the theory of continental drift in the early 1900s which he supported with multiple pieces of evidence. Perhaps the earliest indicator of the theory was the apparent
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Plate Tectonics General Purpose: To inform Specific Purpose: To inform the audience about the Earth’s plate tectonics. I. Introduction A. Attention getter: Have you ever wondered what is the reason why there are earthquakes on Earth? B. Thesis statement: I know I have because I’m always hearing about earthquakes happening all around the globe. C. Personal Credibility: Well I did some research and I found out a lot of interesting information. D. Audience motivation/reason to listen: I found
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University of Phoenix Material Effects of the Motions of Tectonic Plates Worksheet From Visualizing Earth Science, by Merali, Z., and Skinner, B. J, 2009, Hoboken, NJ: Wiley. Copyright 2009 by Wiley. Adapted with permission. Part 1 This diagram was similar to one Alfred Wegener drew to show the distribution of continents 300 million years ago. His theory of continental drift was met with skepticism in the scientific community. [pic] 1. Describe three forms of evidence Wegener
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