Pangea1. What is a Theory?
What is a What is Pangea?
What is Continental Drift?
5. ?
1912: The Theory of Continental Drift
Alfred Wegener
6. land
1912: The Theory of Continental Drift
idea movement
Alfred Wegener
7. 1912: The Theory of Continental Drift
Wegener studied fossils from South American and Africa. He saw some fossils were the same.
8. 1912: The Theory of Continental Drift
Wegener studied fossils from South American and Africa. He saw some fossils were the same.
9. 1912: The Theory of Continental Drift
Wegener studied fossils from South American and Africa. He saw some fossils were the same.
10. 1912: The Theory of Continental Drift
Wegener studied fossils from South American and Africa. He saw some fossils were the same.
11. 1912: The Theory of Continental Drift
Some fossils were the same. How did that happen?
19. Eurasia
Africa
Australia
Antarctica
104. Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
105. Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
106. Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
107. Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
108. Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
109. Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
129. This is a plate.
This is a plate.
Answer: Plate tectonics
130. This is a plate.
This is a plate.
plate = land
tectonics = building or moving
132. This is a plate.
This is a plate.
This is a plate.
This is a plate.
This is a plate.
Answer: Plate tectonics
134. The red areas around the plates (the plate boundaries) are ‘hot zones’ where
earthquakes happen.
135. The red areas around the plates (the plate boundaries) are ‘hot zones’ where
earthquakes happen.
137. Earthquakes
happen between
the plates.
1. Plates slide past each other.
139. Volcanoes erupt
between the plates under
the ocean. The ocean
floor bigger.
2. Plates separate from each other.
141. Crashing plates make
mountains.
3. Plates crash into each other.
http://www.divediscover.whoi.edu/tectonics/tectonics-collide.html
144. Will the continents continue to drift?
What will the earth look like in the future?
http://files.myopera.com/edwardpiercy/blog/6-Future-250AP-2.jpg