• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Knowledge of plate tectonics helps us to understand geomorphological processes but has not significantly increased our ability to manage geomorphological hazards. Discuss this view.

Extracts from this document...

Introduction

Knowledge of plate tectonics helps us to understand geomorphological processes but has not significantly increased our ability to manage geomorphological hazards. Discuss this view. Having knowledge does not necessarily mean you can solve a problem, having the resources and facilities, however does. Our knowledge has changed to in the recent years of plate tectonics, where in the early 20th century, there as the continental drift theory published saying that a single continent existed about 300 million years ago. This continent was called Pangaea, and later he said it split into to smaller continents. This theory was then developed on from the mid 20th century, when ocean ridges (such as the mid Atlantic ridge) were discovered. The magnetic striping showing how the rocks are much older and were erupted in times when the earth had a different polarity. The sea floor spreading also led to our knowledge of plate boundaries, as if there is some spreading of plates then at some point there must be a plate being destroyed. Evidence for this was then found afterwards with big oceanic trenches where part of the oceanic floor as being destroyed. ...read more.

Middle

Protection is the other way to manage a hazard, where the aim is to protect property from the impact of the hazard, but this can also happen with insuring against losses (in MEDCs) and the supply of aid (in LEDCs). Our success of managing hazards can be summed up in their success, for example on Mt Etna, diverting the flow of lava with dynamite was more successful than the Japanese where they thought they were prepared for earthquakes but the Kobe earthquake had a large detrimental effect on their society. With earthquakes there has also been many developments in the more economically developed world where there is suitable capitol for modifying the vulnerability. Building design is a vital element in protecting against earthquakes. There can be large concrete weights in a building to act as a pendulum, shock absorbers built into the foundations of the building and cross bracing to hold the building together when it shakes. The difference in construction technologies and their effectiveness to protect against earthquakes can easily be seen in a comparison between an MEDC and an LEDC. For example in California in the 1989 earthquake (7 on the Richter scale) ...read more.

Conclusion

We can also involve land use planning in areas that we believe to be in a danger zone due to our knowledge of plate tectonics, slopes and climate, by not allowing construction in areas that are designated high risk. In conclusion, I believe that to some extent, our improved knowledge of plate tectonics has increased our ability to manage geomorphological hazards, but not significantly enough to be a huge advantage to us. Our predictions are much better than they used to be, as we know the areas we should monitor due to our knowledge of plate boundaries and hot spots. Also we know how certain aspects of our geology are effected and therefore we can protect against them, for example we know how P,S and L waves work in Earthquakes and therefore we can build infrastructure that will be able to with last these. However manageing the event itself is largely unsuccessful, with people getting injures due to failed attempts. There have only been a few attempts of successful modification of the event such as Etna. Therefore I come to the conclusion that our ability to modify vulnerability has improved from our knowledge, but our ability to modify the event has not to a large extent due to resources. ?? ?? ?? ?? Rachael Burden ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Hazardous Environments section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Hazardous Environments essays

  1. Marked by a teacher

    Discuss the degree to which the theory of plate tectonics is supported by seismic ...

    5 star(s)

    most powerful earthquakes, including almost all of those of magnitude 8 or more. Strike-slip faults are found at conservative plate margins and it is common for a series of faults to mark where the crust had failed. An example of this is the St Andres Fault; it is a broad shatter zone of interrelated faults.

  2. Marked by a teacher

    The extent to which volcanic processes represent hazards depends on where and when they ...

    3 star(s)

    One of the factors that does significantly evidence that due to volcanic eruption is when it occurs will surely have an impact on the aftermath. Volcanoes on a constructive plate margin frequency of eruption usually regular and can be continuous whilst on a destructive plate margin it's from time to time, long dormant of periods.

  1. A knowledge of plate tectonics does not just help in understanding many geographical processes ...

    The doming up of the crust, as a result of the intense pressure from the convection currents within the mantle, leads to rocks splitting at their weakest point. Rift valleys occur where two parallel down- faults have produced a trough.

  2. "What are the physical processes that cause geomorphic hazards? What problems do they cause ...

    ROCK SLIDE, FRANK, ALBERTA, 1903 1. When did the Frank Slide take place? On April 29, 1903 at 4:10 AM, 30 million cubic meters (90 million tons, 82 million tonnes)

  1. Plate Tectonics Project.

    As it does so volcanoes are produced all along the Andes some of which are still active to this day. Here are two examples of diverging plates. Where rising convection currents spread sideways beneath the crust they pull the plates apart and the molten basalt is forced upwards from the

  2. Earthquakes and Plate Tectonics

    The interiors of continental plates are very complex, much more so than island arcs. For instance, we do not yet know the full relationship of the Alps or the East African rift system to the broad picture of plate tectonics.

  1. Plate tectonics

    the trench, the deepest part of the subducting plate breaks into smaller pieces that become locked in place for long periods of time before suddenly moving to generate large earthquakes. Such earthquakes are often accompanied by uplift of the land by as much as a few meters The convergence of

  2. Volcanic and seismic events are major pieces of evidence towards proving that plate-tectonics theory ...

    Furthermore, analysis of lava ï¬ows from all continents indicated that each continent seemingly had its own series of magnetic poles. Does this really mean there were different north magnetic poles for each continent? That would be highly unlikely and difï¬cult to reconcile with the theory accounting for Earth’s magnetic ï¬eld.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work