Across
- 3. A chain of volcanoes formed above a subducting plate
- 5. The magnetic north points towards the geographic north pole
- 7. It is in the opposite direction of the Normal polarity
- 8. A strike-slip fault occurring at the boundary between two plates of the earths crust
- 10. Long,deepvalleys
- 11. A change in Earths magnetic field
- 12. The action of plate tectonic forces
Down
- 1. The site of up-welling from magma
- 2. The formation of new areas of oceanic crust
- 4. The theory that the continents move
- 6. The name of the super continent
- 9. Formed mainly by the effects of folding on layers with in the upper part of the Earths crust