Geology Matrix

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Across
  1. 4. a substance that is located on the inside of a volcano and erupts out of a volcano
  2. 5. a hard mineral consisting of silica
  3. 6. rock that is crushed by several layers of rocks
  4. 9. a fossil of an animal track
  5. 11. the science of determining the relative order of past events
  6. 13. a naturally occurring solid material from which a metal or valuable mineral can be extracted from
  7. 15. a very long period of time
  8. 16. a long, thin line or mark of a different substance
  9. 19. rocks made on the inside of a volcano
  10. 20. a solid, naturally occurring inorganic substance
  11. 21. a dark-colored, fine-grained, igneous rock
  12. 23. any method of determining the age of earth materials
  13. 25. a very light and porous volcanic rock
  14. 28. the same thing as comparative dating
  15. 29. the process for the formation or deformation of a rock
  16. 32. a hard, dark, glass-like volcanic rock
  17. 33. A person that studies fossils or plant and animal remains
  18. 35. A long period of time
  19. 37. a solid material whose constituents (such as atoms, molecules or ions) are arranged in a highly ordered microscopic structure
  20. 38. he action of surface processes hat remove soil, rock, or dissolved material from one location on the Earth's crust
Down
  1. 1. rock made when lava is cooled
  2. 2. characteristics of something
  3. 3. a chamber in which magma is located
  4. 7. Rock that is made on the outside of a volcano
  5. 8. lava ejected from a volcano
  6. 10. hot fluid below the Earths surface
  7. 12. the process by which organic matter exposed to minerals over a long period is turned into a stony substance
  8. 14. wear away or change the appearance or texture of (something) by long exposure to the atmosphere.
  9. 17. a flammable black hard rock used as a solid fossil fuel.
  10. 18. a type of rock which has been changed by extreme heat and pressure
  11. 22. a fossil that is useful for dating and correlating the strata in which it is found.
  12. 24. A distinctive trait. e.g. red
  13. 26. The splitting of rocks or crystals in a preferred direction
  14. 27. A solid material trait
  15. 30. thin coating containing unoxidized metal
  16. 31. dead plant and animal remains that are encrusted in the Earths surface
  17. 34. a sedimentary rock, composed mainly of skeletal fragments of marine life
  18. 36. an amount of time