Across
- 1. a type of fault boundry
- 2. a sliding plate
- 4. a process that occurs at middle ocean ridges
- 5. the change in a planets magnetic field
- 7. super continent
- 8. the destructive plate boundry
- 10. a technique of radiometric dating
- 12. a process that takes place at convergent boundries
- 13. the record of earths magnetic field in rocks
Down
- 1. earths outer shell is divided into pieces
- 3. a motion of a tectonic plate
- 5. a device used to calculate the depth of the ocean floor
- 6. the movement of earths continents
- 9. a constructive or extentional boundry
- 11. a linear shaped lowland between highlands