Plate Tectonics
Across
- 5. the solid,dense center of the Earth.
- 8. the boundary between two tectonic plates that are sliding past each other horizontally.
- 9. a fault in which the hanging wall moves down relative to the footwall.
- 11. the type of stress that occurs when an object is squeezed.
- 12. the theory that continents can drift apart from one another and have done so in the past.
- 15. the process by which new oceanic lithosphere is created at mid-ocean ridges as older materials are pulled away from the ridge.
- 17. the amount of force per unit area that is put on a given material.
- 18. the theory that the Earth's lithosphere is divided into tectonic plates that move around on top of the asthenosphere.
Down
- 1. the boundary between two tectonic plates that are moving away from each other.
- 2. the type of stress that occurs when forces act to stretch an object.
- 3. the layer of the Earth between the crust and the core.
- 4. the boundary between two tectonic plates that are sliding past each other horizontally.
- 6. the liquid layer of the Earth's core that lies beneath the mantle and surrounds the inner core.
- 7. a fault in which the hanging wall moves up relative to the footwall.
- 10. the central, spherical part of the Earth below the mantle.
- 13. the bending of rock layers due to stress in the Earth's crust.
- 14. the thin,outermost layer of the Earth, or the uppermost part of the lithosphere.
- 16. literally, the "middle sphere"-the strong,lower part of the mantle between the asthenosphere and the outer core.