Plate Tectonics Essay

1308 Words 6 Pages
1.0 Topic Definition
Plate Tectonics is a scientific theory which study how the Earth’s plates are driven and shaped by geological forces to keep them in constant movement. 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. (Pitman, W.C., 2007)
Plate Tectonics explains geomagnetic and geothermal phenomena, magma and orogenesis, and it clarify the global mid-ocean ridges and rift system, etc. The theory also analyzes geological issues such as the origin of oceanic crust. Plate Tectonics has a significant effect on all fields of geology because it helps explain many geological phenomenons.
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Geology is a subject which studies the Earth, the materials of it, the structure of those materials and the movement of them. Plate Tectonics studies the movement, evolution, composition, portfolio construction, distribution and mutual relations of the Earth’s lithosphere plates, which is similar to subject of geology.


4.0 Knowledge
In junior high school, I have learned the Continental Drift Theory, and my geography teacher told me there was a new theory based on the Continental Theory, i.e. Plate Tectonics. I accessed to the Internet to find the information about Plate Tectonics.

There are three distinct types of plate boundaries existing, which are supported by geological observation, geophysical data, and theoretical considerations. Their names and categories are based on if adjacent plates move apart from each other (divergent plate margins), toward one another (convergent plate margins), or slip past one another in a direction parallel to their common boundary (transform plate margins) (Pitman, W.C., 2007).

The new volcanic material welling up into the void, which forms a ribbon of new materials and breaks down its center gradually, when the plates move apart from the axis of the mid-oceanic ridge system. Therefore, every separating plate accretes one half a ribbon of new lithosphere, and, thus, a new surface is added (Pitman, W.C, 2007). The process is continuous, and separation is always happening at the…

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