Pangea

Pangea

1. The earth is 6400 million years old

2. Over 200 million years ago all the continents were joined to form a super continent

3. What evidence?

   • Identical rocks and fossils dating from this time have been found in west africa and south america
   • The eastern coast of South America fits almost perfectly with the western coast of Africa.
   • The contunuity of mountain chains
   • A polar ice cap covered the southern end of Pangaea, and glacial deposits of the same age and structure are found throughout the southern continents.
   • The current movements of the continents today

4. These were moved by the continents that are still moving our continents today

5. The lithosphere is split into 15 large plates and 20 small plates