Across
- 2. cylinder of sediment up to 80 feet
- 3. mollusk animal
- 5. 3,600 feet core samples, helped to prove plate tectonics
- 6. profiling helps in locating mineral and petroleum deposits
- 11. dissolved mineral from water, often by bacteria
- 12. single celled algae like a mini greenhouse
- 18. amoeba-like animal with a calcium carbonate shell
- 19. erosion of land, volcanic eruptions, blown dust
Down
- 1. precipitate formed that can be used for fuel
- 4. algae with calcium carbonate plates
- 7. particles of organic or inorganic matter
- 8. calcite compensation depth
- 9. dust from space, meteorite debris
- 10. amoeba-like animal with silica shell
- 13. shallow sampler, but relatively undisturbed samples
- 14. spheres of glassy nodules
- 15. organic, hard parts of some marine organisms
- 16. ooze from hard remains of organisms with calcium carbonate
- 17. pushing air through a line to find natural gas