EESA06H3 Chapter 2: Chapter 2 Notes (Beginning)

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12 Apr 2011
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What is plate tectonics: plate tectonic theory suggests that the surface of the earth is divided into several large plates that change in position and size. Intense geologic activity, such as volcanic eruptions and earthquakes occurs at plate boundaries. The two sides of the ridge are moving in opposite directions like slow conveyor belts. Gonwanaland was the southern supercontinent, composed of all the present-day southern hemisphere continents and india (which drifted north). Late paleozoic glaciations strongly supports the idea of pangea: paleoclimatology the study of ancient climates. www. notesolution. com, wegener reconstructed old climate zones. He discovered that paleoclimatic reconstructions suggested that polar positions very different to those at present. This could be interpreted as evidence for changes in the position of the poles over time. However, hypothesized that this indicated the continents had moved and gave strong support to this concept of continental drift.

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