Plate tectonics Essays

  • 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 Tectonic Plates Research Paper

    708 Words  | 3 Pages

    The World Beneath Our Feet Beneath our feet, a dozen plates are moving, creating more and more damage to human life. Millions of years ago our continents were compiled into one big block called Pangea. Plate tectonics is a theory that answers most of our questions about the earth’s surface. For example it tells us where and why most volcanoes occur, how mountains are formed and so many more questions. Plate tectonics affects our planets in many ways. They are the cause of most natural disaster such

  • Theories Of Plate Tectonics

    1141 Words  | 5 Pages

    The theory of plate tectonics was formulated in the 1960’s, to provide a realistic and complete idea of the processes that produce the Earth’s surface. These plates make up the Earth’s strong outer layer, the lithosphere. “This layer is about 100km thick, which includes the crust and the uppermost part of the mantle.” (Rafferty, 2010) Before the late 1960’s, geologists held the perspective that all the continents and ocean basins were in fixed positions. However this view was quickly dismissed, as

  • Plate Tectonics Movement

    341 Words  | 2 Pages

    The Movement of Plate Tectonics Many scientists have done research on all continents being combined into one. This super continent is known as Pangea. Pangea existed 175 million years ago. But as time went on the continents slowly drifted apart. Underneath the earth are plate tectonics, and when the earth drifts apart the plate tectonics move and cause many things to happen. Many of our landforms were created because of this. Three examples are volcanos, earthquakes, and mountains. To begin, volcanos

  • Essay On Plate Tectonics

    866 Words  | 4 Pages

    Plate tectonics, the cause of many, many natural disasters and landforms. The shifting of tectonic plates can cause earthquakes, mountains, volcanoes, mid-oceanic ridges, and oceanic trenches, depending on the direction the plates move. Though it seems they have such a large effect on Earth itself, the most affected thing being Earth’s organisms. These organisms have evolved to be able to live in these conditions, be it on top of mountains or deep below the surface of the ocean. These creatures

  • Plate Tectonics Research Paper

    1378 Words  | 6 Pages

    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 plates. Seven of the major plates are named

  • Plate Tectonics Research Paper

    888 Words  | 4 Pages

    Birth of Plate Tectonics Plate tectonics is a scientific theory, coined in the 1950s, to explain the large-scale motion of Earth’s lithosphere (the outermost shell of planet Earth). This theory is based on the idea that Earth’s lithosphere is divided into several “plates” that move across the Earth’s surface, relative to each other, gliding over the mantle. The theory of plate tectonics was developed between the 1950s through the 1970s. It is basically the modern version of the theory of continental

  • Why Do Plate Tectonics Exist

    659 Words  | 3 Pages

    variety of igneous metamorphic and sedimentary rocks. The tectonic plates are always colliding or pulling apart, creating mountains. Earthquakes and volcanoes occur at the edge of these tectonic plates because of the impact of the plate movements are greatest there. What would be interesting is what if plate tectonics never existed? What would be the social, economic, climatic impact of living without plate tectonics? Without tectonic forces that push and pull apart our lives would be different

  • Harry Hess's Plate Tectonic Theory

    559 Words  | 3 Pages

    Harry H. contribution on the plate tectonic theory in 1945 when he was actually commander of the U.S.S. Cape Johnson. He informs and studies plate tectonics in his work he used equipment that would take measurements of the sea floor. Hess discovered features on the ocean floor that appeared to be mountains with the tops flattened. Hess described in hot magma would rise out of the crust at the Great Global Rift. But Hess did have many situations in this of may people did question his theory. He was

  • How Does Plate Tectonics Affect The Earth

    1026 Words  | 5 Pages

    Throughout geologic history, tectonic plate boundaries have diverged, converged and transformed the Earth, causing the surface of the Earth to be in a constant state of change. Plate tectonics, at present, is observed only on the Earth and “refers to a particular mode of convection in a planetary mantle, which is made of silicate rocks” (Korenaga 2012, p. 87). The lithosphere of the Earth is divided into plates which move at different velocities over the mantle, with much of the Earth’s seismic and

  • The Plate Tectonic Theory

    1101 Words  | 5 Pages

    broke the surface into plates that float on a sea of magma below. These plates are constantly moving, drifting apart creating divergence boundaries and crashing together creating convergence boundaries, colliding with the power to forge mountains, and splitting solid rock like it was paper. The discovery of these plates didn’t happen over night, the theory has been developed over centuries and finally we understand how mountains are built and canyons are formed. The plate tectonic theory hasn’t been

  • Albert Wedgner's Theory Of Plate Tectonics

    1036 Words  | 5 Pages

    theories and ideas presented thus, not generally accepted. In the 1960s, plate tectonics emerged that explained Earth’s features such as continents, oceans, volcanoes, earthquakes, valleys and mountains. This theory became widely accepted by virtually all Earth scientists. A plate is a solid rock that is large and rigid while the Greek word tectonics means ‘to build’. Plate tectonics is the study of how the surface of the Earth is formed, how the separate pieces of it moves and the effects of this

  • Continental Drift In Australia

    574 Words  | 3 Pages

    continents rest on large slabs of rock called tectonic plates. The pates are constantly moving and interacting in a process called plate tectonics. The movement of Earth's tectonic plates formed Gondwana and broke it apart. The tectonic plates move as a consequence of mid oceanic ridges where adjacent plates are forced apart in different directions. Convection currents, seafloor spreading and rift valleys also drive the movement of the Earth’s plates. When Gondwana drifted apart, Antarctica, South

  • Explain How Does The Composition Of Sea Water Comparison With Fresh Seawater

    1312 Words  | 6 Pages

    Question #1a: Provide a thorough description of the contents of ocean water.            The contents of ocean water is that it is very salty. The salt in the ocean water comes from many different types of rocks on land. How the salt from rocks is that when rain falls down on land the rain will slowly erode the rock. How that is happening is the acid in the rain erodes the rock but it is not dangerous acid to us humans. When the rock gets eroded then it turns into ions which is an atom or molecule

  • The Great Kanto Earthquake

    764 Words  | 4 Pages

    subduction zone created by the intersection of these two plates sits roughly 100 km south of Tokyo virtually bisecting Sagami Bay. Movements associated with these two tectonic plates triggered the 8.2 magnitude approximate Genroku Earthquake of 1703 and the 7.9 magnitude approximate Great Kantō Earthquake of 1923. Recent scholarship suggests that Tokyo is vulnerable to earthquakes triggered by the movement of yet another tectonic plate or “dislodged plate fragment” located directly beneath the Kantō Plain

  • Lithosphere Plates Research Paper

    1127 Words  | 5 Pages

    The other part of the Earth consists of rigid plates which is called the lithosphere plates. They are moving relatively to each other. The moving of lithosphere plates is called plate tectonics. The idea of plate tectonics begin in 1600. Little significance was given to this notion till 1915 when Alfred Wegener, Germany meteorologist and geophysicist wrote a book entitled The Origins of Continents and Oceans. He had read about the similarities in the American and European fossils and become interested

  • Explain How The Continents Moved To Drift Theory

    622 Words  | 3 Pages

    Around 500-600 million years ago a large continent formed by the merging of numerous continents, it was known as Pangaea. The forceful movement of the tectonic plates resulted in Pangaea being split into two smaller land masses. These two smaller land masses were identified as Gondwana and Laurasia. The splitting of Gondwana and Laurasia occurred around 230-280 million years ago. Gondwana or ‘Gondwanaland’ was a primeval supercontinent and was once the southern land mass of Pangaea. Gondwana consisted

  • Cause And Effect Essay On Earthquakes

    1247 Words  | 5 Pages

    ground shake. When two plates are rubbing against each other, they stick a little. Most earthquakes occur along the edge of the oceanic and continental plates. Due to stress they shift and cause the earthquake. that zone is more subject to seismic disasters. Tectonic, volcanic, collapse and explosion, are the four different types of earthquakes. A tectonic earthquake is one that occurs when the earth 's crust breaks due to geological forces on rocks and adjoining plates that cause physical and

  • Mt St Helens Research Paper

    1152 Words  | 5 Pages

    in ash, mud, toxic gases and lava. Mt Saint Helens is one of many active volcanos in the Cascade Mountain Range that runs along the Pacific Coast of the United States of America, a part of the Pacific Ring of Fire, named due to the many active tectonic plates in the region. The blast devastated an area of 20 square km. Within 10km of the summit, were there had previously been dense forest, no trees remained, beyond this area all trees were blown down. A further 600km2 was covered in ash and debris

  • Case Study Of 2009 Samoan Tsunami

    1109 Words  | 5 Pages

    The primary reason/ cause for this tsunami were the two earthquakes and their associated movement of tectonic plates. To explain further; under our earth we have firstly the lithosphere at the surface and the mantle followed by the inner and outer core. (13) Refer to figure 1 below. The lithosphere consists of the crust and the upper mantle and it is divided into 7 major sections called tectonic