Alfred Wegener

Topics: Plate tectonics, Geology, Earth Pages: 2 (801 words) Published: April 12, 2013
Alfred Wegener
Alfred Wegener was a German polar researcher, geophysicist and meteorologist. During his lifetime he was most famously known for his work and research on the theory of continental drift, and meteorology. Wegener was born on November 1st 1880, in Berlin, Germany and unfortunately died on his 4th expedition in Greenland, November 1930. He was aged 50 when he passed. Wegener believed that millions of years ago the world was just one large land mass, that all the continents were joined together. But over time they had drifted apart. The world is made up of many different layers; the inner core, made up of nickel, radioactive uranium and iron. The outer core which is liquid rock, the mantle which is liquid rock at a temperature of 3000 degrees and then the crust, which is made up of hard, solid rock. The crust sits on top of a lot of hot liquid rock called magma; it’s a thick layer and so all the heat at the bottom rises up to the edge of the mantle. This makes a lot of pressure on the crust and it causes it to crack into pieces called tectonic plates and move around. This process is called continental drift, and Wegener discovered it. Of course this was all just a theory; he needed to find hard evidence to support his ideas. He found that at one time all of the continents fitted together to form one super continent called Pangaea, a Greek word meaning ‘all the earth’. He based this on the fact that the east coast of South America, fitted with the west coast of Africa. He also, noticed that the same types of fossils were being found in South America and also Africa, the only assumption was that at one time they were right next to each other, surely? Finally he found matching mountain and rock formations in South America and Africa. The evidence was clear; at one time all of the continents were joined together. Before Wegener proposed his theory about continental drift it was believed quite simply that mountains were created, because the earth was...
Continue Reading

Please join StudyMode to read the full document

You May Also Find These Documents Helpful

  • Alfred Wegener Essay
  • Alfred writer Essay
  • Alfred Sisley Essay
  • Alfred Nobel Essay
  • Alfred Adler Essay
  • Essay about Alfred Nobel
  • Alfred Kinsey Essay
  • Alfred Hitchcock Essay

Become a StudyMode Member

Sign Up - It's Free