1. Plate Tectonic Theory……. Why Alfred Wegener thought of it……

2. Continental Fit……

3. Glacial Deposits……

5. Matching Geology

6. Matching fossils

7. Alfred Wegener needed a mechanism to move the continents………. Sea Floor Spreading

8. Discovery of mid-oceanic ridge……

9. Symmetric magnetic anomalies adjacent to mid-ocean ridge axis…..

10. Figure A-5a and b Paleomagnetism – magnetic signature locked in rocks

11. Magnetic Reversals

12. Age of ocean crust……

13. Figure 4-5 Global pattern of earthquakes

14. Figure 9.14 Global pattern of volcanoes – Ring of Fire