Across
- 3. another word for a divergent plate margin
- 5. Era of the oldest rocks in Europe
- 8. the theory that preceded plate tectonics
- 9. another word for the Hercynian mountain building
- 10. mountain building
- 11. upland made at a collision zone
- 12. moulten rock that is extruded through a volcano
Down
- 1. another word for destructive plate margin
- 2. ____ fault or conservative plate boundary
- 4. the expansion of the sea floor along a plate boundary
- 6. The remains of this form the Mediterranean
- 7. large area of oldest rocks in Europe
- 8. plate boundary where there are earthquakes but not volcanoes