Theory of Plate Tectonics as a Paradigm Shift Essay examples

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Theory of Plate Tectonics as a Paradigm Shift

When Albert Einstein proposed his Theory of Relativity it was not accepted immediately but eventually over time and after some debate it became a replacement for the idea of physical mechanics formulated by Isaac Newton to explain the motion of large bodies in the presence of gravity. Relativity did not totally discredit Newtonian Mechanics but it did raise new questions and could prove certain things that Newton could not. There were questions, critics, and proponents of the new idea but it came in time and after much debate. Shifting from one theory to another after the original idea has existed and been accepted for so long never sits well with scientists. This same shift of ideas is
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The theory explains the how and why behind mountains, volcanoes, and earthquakes, as well as how, long ago, similar animals could have lived at the same time on what are now widely separated continents. Perhaps initiated by heat building up underneath the vast continent, Pangaea began to rift, or split apart, around 200 million years ago. Oceans filled the areas between these new sub-continents. The landmasses continued to move apart, riding on separate plates, until they reached the positions they currently occupy. One theory is that convection within the Earth's mantle pushes the plates causing them to rift moving the continents and hitting other plates causing mountains to form and earthquakes to occur. Exploration of the ocean floor was the proof Wegener needed to prove his theory about plate tectonics and how it affected the movement of the continents.
The original theory for the presence of organisms on two separate continents was huge land bridges that connected one continent to the other. These bridges disappeared after huge amounts of ice melted and filled the ocean with more water. The land bridges sunk under the water and the higher elevated areas are what can be seen today. Wegener concluded that the land bridges were not the cause for organisms to be present on two continents separated by an ocean. He believed that the Earth and all its

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