Across
- 3. a theory of global tectonics in which the lithosphere is divided into a number of crustal plates
- 4. the various mechanical and chemical processes that cause exposed rock to decompose
- 8. a hypothetical landmass in the southern hemisphere that separated tword the end of the peleozoic era
- 9. where plates meet
- 11. a super continent formed during the late palezoic era
- 12. heat-drivin cycles that occur in the air, ocean, and mantle
- 14. German geophysicist who proposed the theory of the continental drift
- 15. the large parts of the surface of the earth that rise above sea level
- 17. a specific geomorphic feature on the surface of the earth
- 19. the mostly solid bulk of earth
Down
- 1. the lateral movement of continent resulting from the motion of crustal plates
- 2. a vent in the earths crust through which lava,steam,ashes,etc, are expeled
- 5. the molten fluid rock that issues from a volcano or volcanic vent
- 6. the act or state of eroding
- 7. the innermost layer of the earth
- 9. moving fragment of volcanic origin
- 10. a hypothetical landmass in the northern hemisphere near the end of the Paleozoic era
- 13. the liquid layer of the earths core, located between the inner core and the mantle
- 16. a landslide of wet volcanic debris on the side of a volcano
- 18. geology molten material beneath or within the earths crust from which igneous rock is form