techtonic plates
Across
- 4. ocean mountain ranges split down the middle
- 5. a type of fault where the crust sideways past eachother
- 7. the process in which crust pushes downward into the mantle at the fault line
- 9. a super continent
- 10. movement of the ocean crust
- 12. the plate boundry where the plates slowly collide into each other
- 13. first person to build a scientific case to support the theory of the continental drift
Down
- 1. the branch of geology that deals with the movement that shapes earths crust
- 2. v-shaped valleys that are the deepest parts of the oceans
- 3. the preserved remains of anicient, once living organisms
- 6. a type of plate boundry where the plates slowly move
- 8. a large part of the earths crust that slowly moves
- 11. the uppermost solid part of Earths crust