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Lecture9

Table of Contents

  1. Journey to the Center of Earth
  2. Why study Earth's interior?
  3. Why study Earth's interior?
  4. Why study Earth's interior?
  5. Why study Earth's interior?
  6. Why study Earth's interior?
  7. Why study Earth's interior?
  8. Why study Earth's interior?
  9. Why study Earth's interior?
  10. Why study Earth's interior?
  11. What's Inside the Earth?
  12. 8.1 How do geologists know about rocks in Earth's interior?
  13. 8.1 How do geologists know about rocks in Earth's interior?
  14. 8.1 How do geologists know about rocks in Earth's interior?
  15. 8.1 How do geologists know about rocks in Earth's interior?
  16. 8.1 How do geologists know about rocks in Earth's interior?
  17. 8.1 How do geologists know about rocks in Earth's interior?
  18. 8.1 How do geologists know about rocks in Earth's interior?
  19. 8.2 How do earthquakes help make images of Earth's interior?
  20. 8.2 How do earthquakes help make images of Earth's interior?
  21. 8.2 How do earthquakes help make images of Earth's interior?
  22. Earthquake Waves
  23. 8.2 How do earthquakes help make images of Earth's interior?
  24. Velocity of Earthquake Waves
  25. 8.2 How do earthquakes help make images of Earth's interior?
  26. Earthquake Waves-travel time
  27. 8.2 How do earthquakes help make images of Earth's interior?
  28. 8.2 How do earthquakes help make images of Earth's interior?
  29. 8.2 How do earthquakes help make images of Earth's interior?
  30. 8.2 How do earthquakes help make images of Earth's interior?
  31. 8.2 How do earthquakes help make images of Earth's interior?
  32. 8.3 How do we know ... how to determine velocities of seismic waves in rocks?
  33. 8.3 How do we know ... how to determine velocities of seismic waves in rocks?
  34. 8.3 How do we know ... how to determine velocities of seismic waves in rocks?
  35. 8.3 How do we know ... how to determine velocities of seismic waves in rocks?
  36. 8.3 How do we know ... how to determine velocities of seismic waves in rocks?
  37. 8.4 What composes the interior of Earth?
  38. 8.4 What composes the interior of Earth?
  39. 8.4 What composes the interior of Earth?
  40. 8.4 What composes the interior of Earth?
  41. 8.4 What composes the interior of Earth?
  42. 8.4 What composes the interior of Earth?
  43. 8.5 How hot is the interior of Earth?
  44. 8.5 How hot is the interior of Earth?
  45. 8.5 How hot is the interior of Earth?
  46. 8.5 How hot is the interior of Earth?
  47. 8.5 How hot is the interior of Earth?
  48. 8.5 How hot is the interior of Earth?

Text and Images from Slide

8.1 How do geologists know about rocks in Earth's interior?

The size of Earth has been deduced as far back as 5 B.C. Earth's mass is derived from our knowledge of gravity. Using these we can calculate density.

drawing that shows the density of crustal rocks and explaining how that relates to what is beneath.

Fig 8.5

Knowing the density of crustal rocks and peridotite tell us that deeper material must be much denser.

graphic line images

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