Across
- 2. hanging wall goes down the footwall
- 4. the center of the earth
- 6. surfaces in rocks become curved
- 7. third layer of the earth
- 8. 2 lithospheric plates come together
- 10. upper layer of Earth's mantle
- 11. an explosion filled with hot lava
- 12. lithosphere under ocean basins
- 16. 2 tectonic plates move away
- 18. can't travel through solids
- 19. records details of earthquakes
- 20. two opposite pulling forces
Down
- 1. plates move sideways past each other
- 3. between the core and crust
- 5. famous theory in geology
- 9. record produced by seismograph
- 13. solid outer part of the Earth
- 14. introduced continental drift theory
- 15. travels through all layers
- 17. fracture in between 2 blocks of rock