Continental Drift and Seafloor Spreading

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Across
  1. 5. Line of evidence used to explain why mountains of similar age and structure are found on different continents.
  2. 7. the breakup of this super continent lead to a snowball Earth.
  3. 10. first supercontinent that formed about 1.8 billion years ago.
  4. 11. A German meteorologist that was the first to suggest the idea of continental drift
  5. 12. Type of crust that has an average density of 3.0 g/cm^3 and has Abyssal Planes as a feature.
  6. 13. the switching of the magnetic poles betweel normal polarity and reversed polarity
  7. 14. the next predicted supercontinent that will form in about 250 million years
  8. 15. Line of evidence that uses identical bands of an extinct reptile found on different continents to support continental drift.
  9. 16. Theory states that the Earth's continents have moved and will continue to move over a period of time across Earth's surface.
Down
  1. 1. Theory that states that hot magma from Earth's mantle rises up through mid-ocean ridges then cools and flows sideways to form new seafloor.
  2. 2. Line of evidence that uses the existence of coal deposits that would have formed due to swamp environments but are found in now cold environments.
  3. 3. Type of crust that has an average density of 2.7 g/cm^3 and has features like mountain ranges.
  4. 4. Line of evidence revolving around the idea that the coasts of some continents appear to fit together.
  5. 6. Vehicle used to map the ocean floor during WWII.
  6. 8. the last supercontinent to form and is wildly known due to it correlation with the dinosaurs.
  7. 9. Study of different aged rock that explained why the ocean floor is comprised of parallel bands of crust that have alternating magnetic polarity.