Across
- 4. intrusive volcanism is when magma is forced into the tocks that make up the earth's crust.
- 11. a british lawyer and geologist, recognized the utility of fossils and subdividing geologic time on the basis of fossils.
- 14. extremely hot liquid located under earth's surface.
- 15. he divided the rock record time into the rock time units from oldest to youngest.
- 16. when the oceanic plate sinks beneath the continental plate.
- 18. which rocks are altered in composition, texture, or internal structure by extreme heat, pressure.
- 22. associated with energy originating in the interior of the solid earth.
- 23. wearing away of rocks by constant collision of loose particles.
- 24. known as "acient life", rapid diversification of life, represented by cambrian fauna.
- 25. it is the study of the processes that deform the earth's crust.
Down
- 1. the reaction between minerals and oxygen dissolved in water.
- 2. dissociation of molecules into ions.
- 3. change in the composition of minerals when they react with water.
- 5. its eruption produces lava in the surface of the earth and this will cool down and becomes igneous rocks.
- 6. eon of "visible life"
- 7. the fracturing and displacement of brittle rocks 'strata' along the fault plane
- 8. from "hades" greek god of the underworld.
- 9. the breakdown of rocks at the earth's surface, by the action of rainwater, extremes of temperature, and biological activity.
- 10. grinding/sliding action between the plates.
- 12. geological phenomena and process that originate externally to the earth's surface.
- 13. when water gets inside the joints, alternate freezing and thawing episodes pry the rock apart.
- 17. two plates move away from each other.
- 19. known as the era of "hidden life" or cryptozoic era.
- 20. two plates move towards each other.
- 21. occur when rocks are pushed towards each other from the opposite sides.