Learn how alfred wegener developed the theory of continental drift includes a discussion wegener's work and modern advancements that have led to our understanding of plate tectonics. Today continental drift theory is accepted widely, in large part owing to the development of plate tectonics, the unifying theory in geology we examine the evidence for continental drift, the arguments against it, and the eventual triumph of plate tectonics in the course of this essay before going on, however, let us consider. Plate tectonics is the understanding of how the planets differing oceanic and continental crust fit together and indeed how our earth works plate tectonics are an essential condition in order to have life - without it the world would be a flat marshland with little or no chance for complex life after alfred weigner. In this lecture ms rajtanil covers plate tectonic theory: plates of the earth, property of interior rocks and how they affect interaction among the plates. Conclusion plate tectonics is the grand, unifying theory of earth sciences, combining the concepts of continental drift and sea-floor spreading into one holistic theory that explains many of the major structural features of the earth's surface it explains why the oceanic lithosphere is never older than about 180 ma and why.
The theory of plate tectonics states that the crust (lithosphere) is broken into 16 big slabs called plates these plates are floating on magma and moving around as a result the earth's core generates huge convection currents, the plates move because of this the convection currents in the upper mantle drag the plates. Plate tectonic theory revolutionised the study of earth science as soon as maps of the atlantic ocean were produced, people noticed that the continents either side seemed to fit togther remarkably well - the bulge of souht america fitting into the indent below west africa fracis bacon had noted this fit as early as the 17th. Plate tectonics first proposed by alfred wegener the meteorologist, the theory of continental drift supports the belief that the earth's continents once were a single land mass this land mass, which was named 'pangaea', broke up, and its various parts drifted away from one another known as the jigsaw fit, where countries.
It can therefore be understood that seismic and volcanic activity will occur at plate margins this essay will evaluate the extent to which this is true, and thus how far the theory of plate tectonics is supported by such phenomena volcanoes are openings in the earth's crust through which lava, ash and gases erupt lava is. Plate tectonics - development of tectonic theory: the outlines of the continents flanking the atlantic ocean are so similar that their correspondence was apparent as soon as accurate maps became available the earliest references to this similarity were made in 1596 by flemish cartographer abraham ortelius and later in. The theory of plate tectonics, only recently introduced to the world, transforms the thought that the earth has been the same since its beginning the theory alters the view of the average person almost in the way that columbus showed the world was round the theory of plate tectonics was developed from the theories of.
Continental drift and plate tectonics essay 2643 words apr 25th, 2013 11 pages show more continental drift and plate tectonics theory (part 1a) introduction: the beginning of the “continental drift theory” in the middle of the eighteenth century, james hutton proposed a theory, uniformitarianism “the present is the. Tectonic plates when alfred wegener first proposed the idea of continental drift ( the precursor idea to plate tectonic theory), it didn't quite explain the full story while he correctly showed that africa and south america fitted together, his model wasn't able to explain the violent forces that occur around the. It is known that the crust of the earth consists essentially of about 35 km thick layer of solid rock matter, which varies in thickness from about 5 km in the oceanic areas to even such thickness as.