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The Theory of Continental Drift. Continental Drift Theory Proposed by Alfred Wegener in 1912 250 million years ago, all of the continents were combined.

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Presentation on theme: "The Theory of Continental Drift. Continental Drift Theory Proposed by Alfred Wegener in 1912 250 million years ago, all of the continents were combined."— Presentation transcript:

1 The Theory of Continental Drift

2 Continental Drift Theory Proposed by Alfred Wegener in 1912 250 million years ago, all of the continents were combined into one super-continent called “Pangaea” The continents gradually drifted apart to where they are today

3 Evidence to Support the Theory

4 “Puzzle Pieces” Continents look like they could be part of a giant jigsaw puzzle

5 Distribution of Fossils Plant and animal fossils found on the coastlines of different continents

6 Sequence of Rocks Same rock patterns found in South America, India, Africa, Antarctica and Australia

7 Ancient Climates Tropical plant remains (coal deposits) found in Antarctica Glaciation in Africa, South America, India, and Australia during the same time

8 Problems With The Theory No mechanism for movement of continents Wind and currents could possibly move fossils Theory was not accepted by scientists

9 Exit-Slip Who came up with Continental Drift? Give at least 2 types of observational evidence he used. Was the theory accepted of rejected by other scientists?


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