Plate tectonic cross word puzzle
Across
- 5. tectonics The name both of a theory and of a specialization of tectonics
- 6. The upper layer of Earth's interior
- 7. A tectonic process thatresults when plates converge and one plate forces the other down into Earth's mantle
- 8. A form of stress produced by the action of equal and opposite forces
- 10. A split between two bodies (for example, two plates) that once were joined
- 11. ridges Sub marine mountain ridges where new seafloor is created by seafloor spreading
- 14. The center of Earth, an area constituting about 16% of the planet's volume and 32% of its mass
- 15. The thick, dense layer of rock, approximately 1,429 mi
- 16. trench A deep depression in the ocean floor caused by the convergence of plates and the resulting subduction of one plate
- 18. An area of fracturing between rocks resulting from stress
- 19. Large movable segments of the lithosphere
Down
- 1. drift The theory that the configuration of Earth's continents was once different than it is today
- 2. The theory that the configuration of Earth's continents was once different than it is today
- 3. A region of extremely high pressure underlying the lithosphere, where rocks are deformed by enormous stresses
- 4. spreading The theory that seafloors crack open along thecrests of mid-ocean ridges and that new seafloor forms in those areas
- 9. valley A long trough bounded by two or more faults
- 12. A tectonic process whereby plates move away from each other
- 13. margins Boundaries between plates
- 17. The uppermost division of the solid earth, representing less than 1% of its volume and varying in depth from 3-37 mi
- 18. An area of rock that has been bent by stress