Hope's Crossword Puzzle

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Across
  1. 1. Movement of Earth's continents relative to each other
  2. 6. Supercontinent
  3. 8. New oceanic crust is formed through volcanic activity then gradually moves away from the
  4. 10. Change in a planet's magnetic field.
  5. 11. One tectonic plate moves under another on and sinks into man
  6. 12. Two plates moving away from each other
Down
  1. 2. Two plates slide past each other
  2. 3. A line demoting suites of rocks and minerals samples all formed at the same time
  3. 4. a subsea chasm extending along the crest of a mid-ocean ridge, locus of the magma upwellings that accompany seafloor spreading.
  4. 5. Crest of a plate moves away towards subduction zone
  5. 6. Study of the magnetic record in rocks
  6. 7. Two plates move towards each other
  7. 9. portion of motion of a tectonic plate by its subduction
  8. 10. Measures small changes in magnetic fields