EARTH: AN INTRODUCTION TO PHYSICAL GEOLOGY

Chapter 2: Plate Tectonics: A Scientific Revolution Unfolds

Concept #3 Quiz

Choose the best possible answer to the following questions about Key Concept 3 "Supporting evidence for the plate tectonics model – effective confirmation of Wegener and Hess."

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1. What has been discovered next to, and parallel to, oceanic volcanic-island chains?  

2. Which of the following is NOT used as evidence for the existence of a supercontinent 200 million years ago?  

3. There were many arguments against both the "continental drift" and "seafloor spreading" hypotheses. One important criticism was that the shorelines of the continents do not fit together perfectly (e.g., S. America and African coasts). What information was discovered that made this criticism no longer a problem? [Hint]

4. Which of the following is direct evidence for plate motion?  

5. Which of the following techniques is/are used in determining plate motion velocity?  

6. Linear, magnetic patterns are recorded in the seafloor crust where alternating high- and low-intensity magnetism is found. These patterns are interpreted to record which of the following?  

7. Which of the following was finally recognized to most completely outline all of the edges of lithospheric plates? [Hint]

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