Browse the world map will show you the seven continents of the Earth, namely Asia, Africa, Europe, North America, South America, Australia and Antarctica. Australia and the Antarctic continent is far from other continents. But continents like Asia and Europe has a mass of earth, which is why it is also known as Eurasia. Until recently, Africa was connected to the Eurasian landmass to the north-east of Egypt. Africa was broken by Eurasia with the completion of the famous Suez Canal in 1869. On the other side of the world, continents of North and South America a land mass separate Siamese before the Panama Canal in 1914. Does this mean that all continents to date, only one massive landmass?
Proponents of the theory
Globe (photo) courtesy of the U.S. Geological Survey
One of the first proponents of this theory is to be Abraham Ortelius. The 16th Flemish geographer explains that the continents were North and South America “from Europe and Africa … torn apart by earthquakes and floods. “He suggested that reveal traces of this faction, if someone gives us a map of the world and explore the coastline of three continents.
A similar hypothesis was proposed by German physicist Alfred Wegener Lothar in 1912. Wegener’s theory was initially rejected, but in the late 1950s, there were major supporters of the theory of continental drift.
Heard the other supporters of this theory, Theodor Christoph Lilienthal, Coxworthy Franklin, William Henry Pickering, Antonio Snider-Pellegrini, Eduard Suess, Alexander Freiherr von Humboldt, Frank Bursley Taylor and Roberto Mantovani.
An overview of the theory
The theory is based on the movement and the gradual separation of the Earth to the continental drift hypothesis of a Sixth Wed Done in January 2012, Wegener proposed. A land mass on earth, before continental drift single supercontinent called it “Pangaea” for future reference. Interestingly, the formation and propagation of supercontinents a cyclical process that has changed. Surface of the Earth for over 4.6 billion years, this fusion cycles and distribution have a profound impact on the sea level, tectonics and global climate. It is interesting to note that the earth’s climate Icehouse when merging continents and climate greenhouse during supercontinent break. It is estimated that a number of cycles of collection and delivery before the formation of Pangaea it. According to some forecasts, a part of the first supercontinent Vaalbara (3.6 billion years), Ur (3 billion years) and Kenorland (2.7 billion years) followed. The theory says that a supercontinent Nuna or Columbia, about 2 Gya (Gt) was formed years. Nuna separated and reassembled, Rodinia formed about 1.1 billion years back. The following are Pannotia supercontinent Pangea and later. It is difficult to predict the exact shape and contours of the previous supercontinent. However, because the super continent Pangaea like the right figure.