Marine
Across
- 1. layer of silicate rock between the crust and the outer core
- 3. theory that considers the Earth's lithosphere to comprise a number of large tectonic plates
- 7. a long narrow ditch
- 9. linear feature that exists between two tectonic plates that are moving away from each other
- 10. drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle
- 11. shaking of the surface of the Earth resulting from a sudden release of energy
- 12. hypothesis that the Earth's continents have moved over geologic time
- 13. the property of having poles or being polar
- 16. very hot, very dense center of our planet
- 18. fissure on the seafloor from which geothermally heated water discharges
- 20. fault along a plate boundary where the motion is horizontal
- 22. outermost solid shell of a rocky planet
- 23. relating to earthquakes or other vibrations of the earth
Down
- 2. the rigid outer part of the earth, consisting of the crust and upper mantle
- 4. an area on Earth where two or more lithospheric plates collide
- 5. geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries
- 6. outermost layer of Earth's lithosphere that is found under the oceans
- 8. result of reversals of the Earth's field and seafloor spreading
- 14. rupture in the crust of a planetary-mass object
- 15. seafloor mountain system formed by plate tectonics
- 17. outermost layer of Earth's lithosphere
- 19. series of waves in a water body caused by the displacement of a large volume of water
- 21. flat region of the ocean floor