Seismic Snapshots Case Study

Improved Essays
1) Describe the two technological advances that have made it possible to better understand the dynamics of the Earth 's mantle.
Two technological advances that have made it possible for scientists to better understand the dynamics of the Earth’s mantle are seismic snapshots and computer modeling. Seismic snapshots enable scientists to determine the temperature and density of the mantle. When an earthquake occurs vibrations are put into motion which create waves that can be detected by apparatuses, seismic waves. Using the instruments that are set up around the world, Geologists and Geophysics determine the amount of time it takes for the seismic wave to travel from the epicenter of an earthquake to a particular station, enabling them to
…show more content…
Climate and erosion both contribute to the shape of landscapes by making certain process occur. For example, the local climate of an area affects which type of erosion that a mountain will experience. When there is a wetter climate, the erosion rates are faster; However the increase in moister yields more vegetation on the mountain which acts as a barrier to erosion. When a mountain is located in a dry area, the erosion rates are slower than those of wet climates. There is also little to no vegetation to serve as a shield to the surface of the mountain, making it erode faster. In addition, mountains that experience windy climates tend to erode more steadily than mountains in calmer climates. This is because the winds that flow over the mountains create more rain, which in turn, creates more erosion. The elevation of a mountain also effects the amount of erosion that it experiences. The higher the mountain is the lower the temperature becomes, making it difficult for vegetation to grow. The absence of vegetation makes the peeks of mountains more suitable to erosion. 4. What are some of the points that argue in favor of the view that intensified mountain building over the last 40 million years has caused the climate to cool? Conversely, what points argue that it was global cooling that caused the intensification of mountain building? (This is the "chicken and egg" question discussed in the

Related Documents

  • Decent Essays

    Rock Cycle Dbq

    • 207 Words
    • 1 Pages

    For example, geology shows what the climates were like a long time ago (Doc. 2). Also, in the 19th century, most of the geology was focused on finding out how old the Earth was (Doc. 2). Other things that the rock cycle can tell you about is what happens if you erode, melt, or compact and cement a rock. Furthermore, if magma cools and crystallizes, it forms an igneous rock.…

    • 207 Words
    • 1 Pages
    Decent Essays
  • Decent Essays

    Where Did Agriculture Originate? a. Began before recorded history. A. Origins of Agriculture. a. Agriculture – Modification of Earth’s surface through cultivation of plants and rearing of animals for sustenance or economic gain.…

    • 357 Words
    • 2 Pages
    Decent Essays
  • Improved Essays

    he movement of the tectonic plates causing a shaking of the Earth’s surface, is an earthquake. Seismographs are instruments that can measure the size of an earthquake, from a tremor to a major event, as they are happening almost unceasingly. Some earthquakes can cause major events like broken dams, landslides, volcanic eruptions, tsunamis and destruction of cities. (Encyclopedia Britannica, 2015) The densest areas of the map – appendix 2 – is around Indonesia and New Zealand.…

    • 850 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Earthquakes In Caascadia

    • 401 Words
    • 2 Pages

    Studies of past subduction earthquakes are inexact things, based on finding their geologic signs: sudden changes of elevation that drown coastal forests, disturbances in ancient tree rings, buried beds of beach sand washed far inland and so on. Twenty-five years of research has determined that Big Ones affect Cascadia, or large parts of it, every few centuries. Times between events range from 200 to about 1000 years, and the average is around 500 years. The most recent Big One is rather well dated, although no one in Cascadia at the time could write. It occurred around 9 p.m. on 26 January 1700.…

    • 401 Words
    • 2 Pages
    Improved Essays
  • Superior Essays

    Climate Seasonal Temperatures Modoc Plateau features moderately extreme weather, with warm summers and cold winters. In the summers, average temperatures can reach 30°C (85°F) during the day and 8°C (47°F) during the night. On the other hand, winters have daytime temperatures of 5°C (42°F) and nighttime temperatures of -6°C (20°F). Temperatures in the Modoc Plateau are generally similar from region to region, with the exception of nearby mountains such as Mount Shasta. Precipitation Unlike temperatures, average rainfall in the Modoc County (and Modoc Plateau) is quite dry and varies from region to region.…

    • 1734 Words
    • 7 Pages
    Superior Essays
  • Decent Essays

    Each tribe from each region must adjust and adapt their ways of life based on geography and climate. Weather conditions and terrain within the regions affect every aspect of life including food sources, shelter, transportation, and clothing. Seasonal changes are major factors that each tribe must adapt to. Climate affects the amount and type of clothing they wear as well as the types of homes they build. Climate can also affect how well crops thrives and the types of animals in each region.…

    • 802 Words
    • 4 Pages
    Decent Essays
  • Improved Essays

    The earthquake itself affected earth in several ways whether that be environmentally, or even by providing knowledge and concepts that are still relevant and important today. During this time in 1906 a seismograph was recently invented but there were very few at that time. One seismograph was put in an underground room beneath the Weather Bureaus main office in order to be removed from the noise and movements of the streets. It only took eight minutes for the initial waves to travel over 2,500 miles to where the seismograph was held in Washington DC (Potter,2008).…

    • 1043 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Unlike the East coast, the natural disaster that is most common in the West coast is earthquakes. As common as earthquakes are, there are only so much we know about the elements involved; such as fault lines. The topics discussed are what and where earthquakes occur, its history, and earthquake preparation in California. Earthquakes are known worldwide as a shaking of the ground. However, this just how people see the phenomenon where destruction follows.…

    • 684 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    Feldspar Under Pressure

    • 123 Words
    • 1 Pages

    In 1909, The seismic discontinuity was located when a seismograph found a wave on the crust and the other wave on the upper mantle. Scientists wanted to learn more about the seismic discontinuity by drilling holes, but the project fell short.…

    • 123 Words
    • 1 Pages
    Decent Essays
  • Decent Essays

    A significant tool for predicting a future earthquake is preseismic deformation of the ground surface. Preseismic deformation of the ground surface can be described as the ground uplifting or subsiding from its original location. With that being said, preseismic deformation of the ground surface has been a great indicator for impending earthquakes. For example, the Earth’s crust uplifted several centimeters, on the coast near the Sea of Japan, for more than 10 years prior to the 1964 earthquake near Niigata Japan. In addition, extensive slow uplift, of the Earth’s crust, several centimeters to be exact, occurred in a 5 year period before the 1983 Sea of Japan earthquake.…

    • 207 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Earth's Crust

    • 254 Words
    • 2 Pages

    The Earth's crust is constantly moving in all directions. The movement of the crust is called plate tectonics. Plate tectonics hasn't been developed very long, only about fifty years. It was founded by geophysicists in the 1960's.…

    • 254 Words
    • 2 Pages
    Improved Essays
  • Decent Essays

    The earthquake happens when two plates slip past each other. The surface where they slip is called the fault plane. After the earthquake, if it is a major one, there are aftershocks. The aftershocks are like “mini earthquakes” that happen after the earthquake.…

    • 231 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Ever since I was a little kid, earthquakes have mesmerized me. I have always just been absolutely amazed about the amount of destruction they cause and how powerful they are. Although I have never thought of becoming a seismologist, it something I would want to learn more about. A seismologist studies seismic waves, energy waves caused by rock suddenly breaking apart within the earth or slipping of tectonic plates. There are many ways that scientists are able to study seismic ways and earthquakes.…

    • 506 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    1960 Valdivia Earthquake

    • 297 Words
    • 2 Pages

    An earthquake is the phenomenon that a huge energy suddenly released and appeared in the Earth’s crust when two moved plates slip past one another. The earthquakes usually happen in the convergent boundaries, divergent boundaries and transform boundaries. In the three kinds of boundaries, the convergent boundary often produces the largest magnitude earthquakes. Because when the two plates collide strongly in the convergent boundary, the extreme pressure and the great friction will appear. So the convergent boundary is more likely to have a large magnitude earthquake.…

    • 297 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Triangulation is a way of determining something 's location using different locations. The four different types of earthquake waves are P and S wave, Surface wave and the Rayleigh wave. The faster of the waves is known as the primary wave (P…

    • 701 Words
    • 3 Pages
    Improved Essays