Mining Crossword

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Across
  1. 2. The change of rocks from one type to another type is known as
  2. 5. Process by which a denser oceanic plate slides under a continental plate
  3. 6. Large waves generated in the ocean by an earthquake, landslide or volcanic activity are called
  4. 9. Type of plates you expect to find at the Mid-Atlantic Ridge
  5. 10. One big environmental problem with smelting is
  6. 12. Most likely type of mining that would be used to mine coal on hilly terrain
  7. 14. A human health impact associated with subsurface mining would be
  8. 15. One of the most commonly mined minerals used to make glass, bricks, and concrete is
Down
  1. 1. Substitute for mineral resources still requires heavy use of oil and other fossil fuels
  2. 3. Commonly used to extract gold from rock in Australia and North America
  3. 4. The San Andreas Fault line that lies in California is a result of what type of plate boundary?
  4. 5. Waste soil and rock removed during surface mining is called
  5. 7. The portion of ore that does not contain the desired mineral
  6. 8. A rock that contains a large enough concentration of a metal that it can be mined for economic value is
  7. 11. Type of rock is formed directly from magma or lava
  8. 13. The type of mineral extraction that is least likely to disturb land area