Convergent boundary Essays

  • Theories Of Plate Tectonics

    1141 Words  | 5 Pages

    connection between volcanism and plate tectonics is that “plate motions provide the mechanisms by which mantle rocks undergo partial melting to generate magma” (Condle, 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

  • Essay On Aerial Volcano

    1085 Words  | 5 Pages

    Aerial volcano lies at the convergent plate boundary between an oceanic and continental plate. It is believed to have been formed through 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

  • St Helens Research Paper

    1299 Words  | 6 Pages

    Activity of the Cascadia Fault is what had triggered the activity of St Helens in 1980 and in 2004. The Cascadia fault is a convergent plate boundary. The fault is a described as long and slopping, it starts in Northern Vancouver Island and expands down to Northern California. The Cascadia fault line separates the Juan de Fuca plate and the North American plate. Tectonic processes active

  • Plate Tectonics Research Paper

    888 Words  | 4 Pages

    Because in transform boundaries there is no tearing or crunching between the plates like in the case of other boundaries, there is also usually a lack of formation of spectacular features like mountains for example. However this does not mean transform boundaries do not leave a mark at all on the surface. They are sometimes marked by linear valleys along the boundary where rocks and other debris has been ground up by the sliding of the plates. Transform boundaries may also be marked by stream

  • 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

  • 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

  • Explain Wegner's Theory Of The Continental Drift

    844 Words  | 4 Pages

    According to the textbook, Alfred Wegner proposed the idea that the continents were drifting across the globe. He called this idea the continental drift. He had the idea that the continents were once together forming one big landmass named Pangaea. As Pangaea developed it caused the continent to break apart, and drift to their present locations. To be able to prove this idea however, he had to have evidence to show it was true. If I could travel back in time to help Wegner prove his idea to be true

  • Essay On The Periodic Table

    733 Words  | 3 Pages

    What is the periodic table: Our world is composed of many things. And these many things are composed of many other things. Everything on our earth is made of the elements of the periodic table (our earth is immense, imagine how important elements are!). Elements are substances that can’t be broken down or made into anything simpler by chemical reactions. The periodic table and its elements are both vital parts of chemistry and other sciences. The periodic table is basically a table that organizes

  • 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

  • Yosemite Geography

    1233 Words  | 5 Pages

    Yosemite is one of the top ten most visited national parks which was established on October 1, 1890, making it the third national park in the United States. Since then over four million visitors come to the Yosemite Valley annually according to national geographic. Yosemite is sought to be a place for the people because it caters for many different types like hikers, photographers, adventurers and much more. Yosemite went through two geological stages, first off metamorphic rocks went through deformation

  • 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

  • Mount Vesuvius Case Study

    766 Words  | 4 Pages

    Background: Mount Vesuvius, is located on the west coast of Italy. Currently, Mount Vesuvius is the only active volcano in mainland Europe. Vesuvius is part of the Campanian volcanic arc, which is also known as a line of volcanoes that is formed over a subduction zone created by the convergence of the African and Eurasian plates (Bagley, 2017). Mount Vesuvius is 4,000 feet tall. Livescience.com says what separates Mount Vesuvius from other volcanoes is its “slab window” (Bagley, 2017). A slab window

  • 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

  • Ap Environmental Science Chapter 14 Summary

    442 Words  | 2 Pages

    Valerie Beketova Dr. Bennett AP Environmental Science 10 December 2015 Chapter 14 Outline Earth is a very dynamic planet Earth is made up of different layers: - Core - interior made up of dense, extremely hot metal, mostly iron. It is the most inside layer of earth. - Mantle - hot, pliable layer that surrounds the most inner layer, the core. It is less dense than core. - Crust - cool, lightweight, brittle, which floats on top of mantle. It is the outer layer of earth. Tectonic

  • Cambrian Period Research Paper

    660 Words  | 3 Pages

    The Cambrian Period is the first geological time period of the Paleozoic Era. This period lasted about 53 million years and marked a dramatic burst of Evolutionary changes in life on Earth, known as the "Cambrian Explosion. Plant and Animal Life • In the Cambrian period life was in the oceans and some of variety of microscopic plants were in the oceans. Many Early Cambrian invertebrates are known only from "small Shelly fossils". • There were a variety of microscopic marine plants like the Margarita

  • Geography And Environment Essay

    1450 Words  | 6 Pages

    is located in East Asia and lies on the lower half of the Korean Peninsula. West of South Korea lies China, separated by the Yellow Sea, and in the east Japan, separated by the Sea of Japan. The East China Sea and the Korea Strait form a natural boundary in the south. North of South Korea is situated the only directly bordering sovereign state; North Korea. North Korea

  • Explain Why Did The Alaskan Way Viaduct Collapse

    464 Words  | 2 Pages

    Why does the Alaskan Way Viaduct Collapse? The Alaskan Way Viaduct hasn’t really collapsed yet. Even though it hasn’t collapsed yet we know what is going to cause it. It all starts with the layers of the Earth. When the layers of the Earth move it causes the tectonic plates (aka: plate tectonics) to move which causes the Alaskan Way Viaduct to collapse. The layers of the Earth are the inner core, outer core, mesosphere, asthenosphere, upper rigid mantle, oceanic crust, and the continental crust

  • Hotspot Theory Essay

    1487 Words  | 6 Pages

    the Pacific plate rather than on a tectonic boundary. In 1969, “hotspot theory” was purposed by J. Tuzo Wilson to explain this unusual placement. Wilson proposed that the linear geography of the Hawaiian Islands is due to the movement of the Pacific plate over a stationary point of great heat from deep within the Earth. The great heat from this localized hotspot melts the Pacific plate above the hotspot and the spreading seafloor along the plate boundary pushed over the rocky crust. Magma was produced

  • Japan Tectonic Earthquakes

    1626 Words  | 7 Pages

    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 Zones and the Active Fault Systems. The Kuril Trench delineates the loci of the Plate – Boundary earthquakes in Hokkaido. An active seismic zone is located inland, in the Foreland Thrust Zone of the Western Hidaka Mountains. The most active zone for

  • Pangaea And Globalization Analysis

    715 Words  | 3 Pages

    Pangaea is the idea of the continents shifting away from each other. This happened due to plates within the world shifting, and the sea floor changing (Diets & Holden, 1970). Those which were once one solo piece of land mass became individual continents, with invisible borders, independent nations, and complete isolation from the neighboring continents. It is now roughly 250 million years later (NASA, 2010), and the shape that was once Pangaea no longer exists, but there is now a connection with