ALL THINGS MARINE BIOLOGY

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Across
  1. 6. this cools and hardens to form new oceanic plates
  2. 7. the boundary where a continental plate and an ocean plate crash into each other
  3. 8. the California zone of the active transform fault
  4. 9. the type of boundary were the ocean floor is pulling apart
  5. 10. the ocean that surrounded Pangaea
  6. 11. a fairly rigid layer of the earth's curst that is broken into a number of plates
Down
  1. 1. loose material, such as mud, that settles at the bottom of the sea floor
  2. 2. this reversed direction every million years
  3. 3. converts vibrations in the earth into electric signals used to measure earthquakes
  4. 4. the earth's ___ can rise to the surface in volcanoes
  5. 5. a system of deep depressions in the sea floor
  6. 8. Self Contained Underwater Breathing Apparatus