Tectonic plate essay
This causes the formation of volcanoes, and triggers earthquakes of both large and small magnitudes.
After having better understanding the activities of volcanoes, earthquakes and terrestrial magnetism, the theory of plate tectonics was introduced about 30 years ago.
It is significance for engineer to predict the damage of earthquake, and engineers also improve the techniques and theories to make structures safer.
Most of the time, scientists cannot predict when these disasters will strike, but they have learned how to prepare for them. Before the Twentieth Century, scientists and geologists thought that mountain structures were due to the massive tightening of the earth caused by the gradual cooling of molten rocks.
Plate tectonics essay conclusion
Underwater, oceanic plates moving apart form ocean trenches, while continental plates moving apart form rift valleys. These fragments are suspended on the asthenosphere, which is molten hence offering good medium of movement. Particularly stark examples are; the city of Pompeii that was engulfed in a matter of moments by a pyroclastic flow from Mount Vesuvius a stratovolcano and the barren landscape left behind in the wilderness around Mount Saint Helens in the aftermath of its violent eruption the force of which ca Unlike most earthquakes the after effects of a volcanic eruption can leave behind starkly different moonscapes that differ greatly from the green forests and villages that stood there before. As a result, a subduction zone or a continental collision is formed depending upon the nature of the plates in action. In school we did not participate in earthquake drills, and we were not informed on how to handle such a catastrophe Drumlins were also created through the process of glaciation. Earth is a rich planet containing things such as icy mountain peaks, steep canyons, lava, and towering waterfalls. It is also gives scientists the ability to understand how mountains were formed between two tectonic plates. The most reasonable way is the movements of the Earth 's crust. Oceanic-Continental convergent boundaries: It is a type of a Convergent Boundary which takes place when plates move toward each other.
The theory explains the present-day tectonic behavior of the Earth, particularly the global distribution of mountain building, earthquake activity, and volcanism in a series of linear belt.
This theory did not seem credible until it was connected with the plate tectonic theory in the mid 's. Photographs show the dry, pounded surface of the moon in the foreground, dead as an old bone.
On the other hand, lateral slipping occurs when two plates move in opposite direction slipping over each other at a transform boundary. The most reasonable way is the movements of the Earth 's crust.
Plate tectonic theory summary
The theory was proposed in by Alfred Wegener, a German scientist. The earthquake and tsunami together have caused approximately 20, deaths, injuries and people missing Copyright by Wiley. As tectonic plates move, there is building up of pressure along the fault lines, and when this pressure exceeds the strength of lithosphere, earthquakes result to relieve the pressure mounting in the lithosphere. The movement is caused by convection in the asthenosphere. Subduction is when an oceanic and a continental plate collide, and the oceanic plate is pushed below the continental plate. Transform boundaries are where two tectonic plates are either sliding past each other, or moving in the same direction at different rates.
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