Plate Tectonics
Across
- 3. Breaks in the Earth's crust where blocks of crust are moving in different directions.
- 4. A valley or depression in the land bordered by fault zones and separating tectonic plates.
- 6. Theory that the continental landmasses drifted across the Earth.
- 8. A geological process in which the edge of a lithospheric plate slides underneath the edge of an adjacent plate.
- 9. Type of boundary where two plates are pushing toward each other.
- 10. When a heavier oceanic plate subducts beneath a lighter continental plate, this is formed.
Down
- 1. A geologic process in which tectonic plates split apart from each other at midocean ridges.
- 2. Theory that Earth's outer shell is divided into several plates that glide over the mantle.
- 5. Boundary where 2 plates are moving apart form each other.
- 7. Boundary where 2 plates slide past each other.