Seafloor Spreading and Seafloor Features

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Across
  1. 2. An underwater mountain with a steep top.
  2. 5. The flow of magma in the mantle thought to be the cause of seafloor spreading.
  3. 9. This man discovered the process of seafloor spreading.
  4. 11. The first region of the continental margin that is submerged under water.
  5. 12. The rock type that makes up the ocean crust.
  6. 14. A geyser of hot water in the bottom of the ocean that carries minerals.
  7. 15. This man created the idea of continental drift.
  8. 16. The edge of the continent.
  9. 17. The rock type that makes up the continental crust.
  10. 18. An underwater mountain with a rounded top.
  11. 19. The steeply sloping region of the continental margin.
  12. 20. The process the creates new ocean floor at the mid ocean ridge and recycles it at the deep-sea trench
Down
  1. 1. The sediment laden edge of the continental margin where continental crust becomes oceanic.
  2. 3. The deepest spot in the ocean.
  3. 4. When one ocean plate descends beneath another oceanic plate or continental plate.
  4. 6. A deep valley cut into the continental shelf caused by erosion.
  5. 7. The large mountain range in the middle of the ocean created by seafloor spreading.
  6. 8. A deep depression in the ocean caused by subduction.
  7. 10. Continental margins that are geologically active and common on the Pacific Coast.
  8. 13. Continental margins that aren't geologically active and found on the Atlantic Coast.
  9. 16. The idea that the continents used to be connected.