Continental Drift

In: Science

Submitted By Bigoltom
Words 636
Pages 3
Introduction to the Sciences
Thomas Hays
SCI101
Phase One Individual Project
15 September 2013

The world as we know it may or may not have always existed. The formations of land masses and, the joining of the waters and ice caps that we recognize as earth in aerial photographs likely looked very different in the past. In this paper I hope to shed some light on the theory of continental drift and explain the various ideologies that attempt to explain these theories.
The first term that must be understood in order to grasp the theory of continental drift is plate tectonics. The idea of plate tectonics dates back to the 1600’s, but was not given much credibility until 1915. It was at this time that meteorologist Alfred Wegner released a book based on his study of the continents. He proposed that the continents of the earth were once connected. This idea was based not only on the fact that the continents fit together like a jigsaw puzzle, but also the fact that there are similar fossils of both plants and animals found in the areas which would be connected if the continents were put back together. Wegener called this one continent world Pangaea.. Although Wegener offered the most credible evidence of continental drift to date, only a few others were confident in his theory. Most geologists ridiculed him for his ideas. The major flaw with Wegener’s theory was that he could not explain how the continents moved. His idea was that the continents simply drifted, forcing their way through the ocean floor. This simply was not enough to convince skeptics.
It wasn’t until 1928 that a more credible explanation of how continents could be moved was introduced. Arthur Holmes presented a theory that proposed that not only were the continents moving, but that they were moving because the ocean floor itself was moving. His theory was that…...

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