Subduction Essays

  • Subduction Zones Essay

    915 Words  | 4 Pages

    Subduction zones can create beautiful landscapes such as mountains; however, they are also dangerous regions. Subduction zones occur because one of the plates that collide with other, in convergent plate boundaries, is of higher density. Hence it sinks into the earth back to the mantle (lecture 3, slide 24-26). When such phenomenon occurs, natural hazards such as earthquakes or tsunamis would occur, making these regions dangerous. Nevertheless, it does not limit traveling. Buying an insurance policy

  • How Does Plate Tectonics Affect The Earth

    1026 Words  | 5 Pages

    different velocities over the mantle, with much of the Earth’s seismic and volcanic activity occurring when these different plates interact at plate boundaries. Volcanic activity, therefore, occurs at two types of plate boundaries: mid-ocean ridges and subduction zones. Plate tectonics also influence the evolution of the

  • Samoan Tsunami Essay

    1485 Words  | 6 Pages

    The Samoan earthquake was located around the northern terminus of the Tonga volcanic arc where the trench has a sharp bend going west. The earthquake happened just east of this trench. The Pacific plate entered the subduction zone and made a steep descent downward, as the subduction is quite dense and old. This then resulted in faults near the Tongan Trench

  • Plate Tectonic Plates Research Paper

    708 Words  | 3 Pages

    volcanoes are responsible for every bit of land on this planet. Tsunamis A tsunami is also another natural disaster that can cause a lot of damage. It can be caused by an earthquake, landslide or a volcano. Tsunamis are mainly found in subduction zones. In a subduction zone the two plates meet and build pressure eventually the oceanic plate which is the heavier plate slides under the continental plate causing an earthquake. The earthquake shifts part of the ocean floor creating waves, however, gravity

  • Plate Tectonics Essay

    980 Words  | 4 Pages

    PLATES TECTONICS Plate tectonics is the scientific theory that attempts to explain the motion of the Earth’s lithosphere that have formed the landscape the landscape features we see cross the globe. The theory of the plates tectonics state that the lithosphere of the earth is build up from single plates that are broken down into dozen massive and tiny particles of solid rock. These pieces of plates move near each other on the peak of the earth more fluid lower mantle to produce various type of plates

  • Plate Tectonics Research Paper

    888 Words  | 4 Pages

    Subduction is the process when in which one tectonic plate moves under the other, sinking into the mantle as the plates converge. Regions where subduction takes place are known as subduction zones. Subduction zones tend to have very high rates of earthquakes, volcanism, and mountain building. Some examples of volcanoes that are located above subduction zones would be Mount St. Helens, Mount Etna, and Mount Fuji. Furthermore

  • Discuss The Causes Of Earthquake In Miami

    1269 Words  | 6 Pages

    On September 29 2009, a devastating natural disaster hit the islands of Samoa, American Samoa, and Tonga. An earthquake of magnitude 8.3 caused a massive tsunami to damage the surrounding islands. Key Stage 1 What was the cause of the tsunami? A tsunami is a set of waves that is triggered by the displacement of water on the ocean floor [1]. On September 29th 2009, two particularly strong earthquakes caused a massive tsunami to hit the islands of Samoa, American Samoa, and Tonga [2]. An earthquake

  • Essay On Aerial Volcano

    1085 Words  | 5 Pages

    the process of subduction. When the two plates converge, the denser and thinner oceanic plate gets bent, or subducted, beneath the lighter and thicker continental plate. The magma rises, becoming lava when it reaches the Earth’s surface. When the lava cools, it forms rock. Over time, after several eruptions in which magma explodes to the surface when pressure in the Earth is released, the rock builds up and Aerial volcano is formed. The area where this happens is called the subduction zone. The crust

  • Theories Of Plate Tectonics

    1141 Words  | 5 Pages

    2015). Volcanism is prominent at two types of plate boundaries, convergent and divergent. At convergent plate boundaries, two plates move towards each other, causing a slab of oceanic crust to descend below the continental plate into the mantle (Subduction), which will create a deep ocean trench. As shown in figure 2.1, this slab of crust drives deeper into the mantle, there will be an increase in temperature and pressure causing the material (water and carbon dioxide) within the slab to reach melting

  • Wegener's Theory Of The Earth Essay

    1000 Words  | 4 Pages

    2. Literature Review 2.1 Theoretical Background 2.1.1 The Earth and its Atmosphere In the early twentieth century, a young German scientist named Alfred Wegener, His theory was motivated by the observation that the continents, particularly South America and Africa, seemed to be pieces of a global jig-saw puzzle that had somehow been pulled apart (Asrat, 2006). He reasoned that all land masses were once connected in a gigantic supercontinent he named "Pangaea". The northern part of Pangea is commonly

  • Essay On Christchurch Earthquake

    2138 Words  | 9 Pages

    ABSTRACT The purpose of this article is to discuss 2010-2011 New Zealand earthquakes and the aftershocks, geological reasons of earthquake and various terminologies related to earthquake. The article also describes the Geology of New Zealand and how the geographical location makes the country Vulnerable to such disasters. Majorly the article discuss, the 2010 Canterbury earthquake and 2011 Christchurch earthquake, its Impact on Social and Economic structures of the country and its impact on the

  • Japan Tectonic Earthquakes

    1626 Words  | 7 Pages

    EARTHQUAKES AND SEISMIC ZONES Japan has always had a history of experiencing tectonic movements and volcanic activities. The movements that were taking place during the Paleozoic, Mesozoic, and even during the Tertiary times are still proceeding today. Earthquakes are too felt across the country at each and every part, as they accompany movements along the fault lines and volcanic activities. The conditions of seismicity in the Japanese Arc System are very intricately linked to the Plate Boundary

  • Alfred Wegener And Continental Drift Essay

    866 Words  | 4 Pages

    Alfred Wegener and Continental drift It was 1912, and one man named Alfred Wegener was studying a map. He believed that the world looked as though it were one big puzzle, and that the continents could fit together. Then he thought that maybe, a very long time ago, they did. He hatched up a hypothesis. Simply put, his hypothesis proposed that the continents had once been joined, and over time had drifted apart. When the continents were together, he called the supercontinent Pangea. In order

  • Uniformitarianism Vs Catastrophism Essay

    746 Words  | 3 Pages

    I. Introduction I will discuss the geologic paradigms of uniformitarianism and catastrophism. Both theories shape the Earth’s surface, but are compared in different ways. Uniformitarianism theory details how things happen on and to the earth. Catastrophism theory believed that all things happen and change on earth due to major catastrophes such as meteorites impacting earth. The main question I will answer is how and when these two theories came about, and what makes these two theories different

  • Alaska Earthquake Research Paper

    352 Words  | 2 Pages

    Convection Currents The Alaskan Way Viaduct will collapse if an earthquake happens. Tectonic plates rubbing together causes an earthquake. What causes them to rub together? An earthquake happens through a sequence of cause and effect. Altogether, temperature, density, and convection currents work together to cause an earthquake. The layer of the Earth are made up of the lithosphere, asthenosphere, mesosphere, and the core. In the lithosphere, there is the upper rigid mantle, oceanic crust, and continental

  • Essay On Martian Geology

    947 Words  | 4 Pages

    Geologic features. The martian geology is different than Earth in many ways when it comes to the soil and the plate tectonics. Red soil. Mars is called the red planet for a reason. The soil on Mars is rich in magnetic iron oxides which is rust. Scientists took a soil sample that mimics that of Mars and tested it to see if it would rust the way it looks like on Mars. The iron was unchanged after a year in a dry atmosphere and finally changed when the sample was put in a wet atmosphere. (R., 2005)

  • Plate Tectonics Research Paper

    1378 Words  | 6 Pages

    Millie Newton Miss Amiat 22 February 2018 Plate Tectonics definition of plate tectonics Plate tectonics is the study of the structure of the earths crust & mantle with reference to the theory that the earths lithosphere is divided into large rigid blocks that are floating on semi fluid rock and are thus able to interact with each other at their boundaries and to the associated theories of continental drift and sea floor spreading. There are a few handfuls of major plates and dozens of minor

  • Oceanic Dispersal Essay

    1234 Words  | 5 Pages

    The resurrection of oceanic dispersal in historical biodiversity. by Alan de Queiroz. The distribution of many taxa that are separated by oceans can be explained by either vicariance or oceanic dispersal. At first oceanic dispersal was the explanation used for the distribution of taxa separated by oceans. Since the 1930s till the 1960s time oceanic dispersal was the most common explanation because there were many plausible dispersal mechanisms that would make oceanic dispersal possible. Support

  • The Hawaiian Island Chain

    889 Words  | 4 Pages

    Geology of the Hawaiian Island Chain The chain of Hawaiian Islands formed as the Pacific plate moved over a hot spot in the mantle of the Earth. The plate slowly moves northwestward at a rate of about 32 miles per million years. The northwestern islands are older and generally smaller due to prolonged exposure and erosion. Plate tectonics, types of volcanoes, hot spots, and sea mounts, are all an important part of the geology of the hawaiian island chain. Plate tectonics is a theory that Earth’s

  • Persuasive Speech: Mutations And Space Exploration

    940 Words  | 4 Pages

    • I want you to stop for your second and look at the person sitting next to you. What you are looking at is the fine result of over 200 thousand years of evolution; the master piece of natural selection, and a perfectly adapted organism to life on earth. • But with exponential grow in technological advances, unpredictable climate change or even space exploration. Have you ever stopped for a minute and tried to imagine how Humans will look like in 1000 years? Central Idea/Preview Statement: •