Zusammenfassung der Ressource
Plate Tectonics
- lithosphere consists of large, rigid sections called plates
- Convection Currents
- Continental Drift
- Alfred Wegner
- rocks in N. America same as those in Irl. and Scot.
- Pangaea
- Convergent
- 2 plates collide
- heavier plate is subducted
- 2 Oceanic Plates
- long deep trench formed
- Oceanic Continental
- uplift - fold mountains
- Andres fold mts.
- Divergent
- 2 plates separate
- magma rises
- cools on crust
- Mid-Ocean ridge
- Volcanic Island
- Eurasian and N. American