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Earth’s Interior.

Published byPauline Baker Modified over 6 years ago

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Presentation on theme: "Earth’s Interior."— Presentation transcript:

1 Earth’s Interior

2 - Earth is layered - layering is based on:. a) composition or
- Earth is layered - layering is based on: a) composition or b) state (s, l, g)

3 - layering based on composition

4

5 - layering based on state

6

7 upper layers

8 History of Plate Tectonics - Alfred Wegener (1920’s)

9 History of Plate Tectonics - Alfred Wegener (1920’s) - Continental Drift Theory

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11 History of Plate Tectonics - Alfred Wegener (1920’s) - Continental Drift Theory - stated that continents plowed through the ocean floor

12 History of Plate Tectonics - Alfred Wegener (1920’s) - Continental Drift Theory - stated that continents plowed through the ocean floor - quickly disproven

13 History of Plate Tectonics - new technology after WWII allowed for mapping of ocean floor - new discoveries led to the Theory of Plate Tectonics

14

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