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Lecture 13

Table of Contents

  1. Tectonics and Surface Relief
  2. Why study surface relief?
  3. Why study surface relief?
  4. Why study surface relief?
  5. Why study surface relief?
  6. Why study surface relief?
  7. Why study surface relief?
  8. Why study surface relief?
  9. Why study surface relief?
  10. Above and Below sea level
  11. 13.1 Why are continents high and oceans low?
  12. 13.1 Why are continents high and oceans low?
  13. 13.1 Why are continents high and oceans low?
  14. 13.1 Why are continents high and oceans low?
  15. 13.1 Why are continents high and oceans low?
  16. 13.1 Why are continents high and oceans low?
  17. 13.1 Why are continents high and oceans low?
  18. 13.1 Why are continents high and oceans low?
  19. 13.2 How do we know ... that mountains have roots?
  20. 13.2 How do we know ... that mountains have roots?
  21. 13.2 How do we know ... that mountains have roots?
  22. 13.2 How do we know ... that mountains have roots?
  23. 13.3 How does isostasy relate to active geologic processes?
  24. 13.3 How does isostasy relate to active geologic processes?
  25. 13.3 How does isostasy relate to active geologic processes?
  26. 13.3 How does isostasy relate to active geologic processes?
  27. 13.3 How does isostasy relate to active geologic processes?
  28. Glacial Isostasy
  29. 13.3 How does isostasy relate to active geologic processes?
  30. 13.3 How does isostasy relate to active geologic processes?
  31. 13.3 How does isostasy relate to active geologic processes?
  32. 13.3 How does isostasy relate to active geologic processes?
  33. 13.4 Why does sea level change?
  34. 13.4 Why does sea level change?
  35. 13.4 Why does sea level change?
  36. 13.4 Why does sea level change?
  37. 13.4 Why does sea level change?
  38. 13.4 Why does sea level change?
  39. 13.5 How and where do mountains form?
  40. 13.5 How and where do mountains form?
  41. 13.5 How and where do mountains form?
  42. 13.5 How and where do mountains form?
  43. 13.5 How and where do mountains form?
  44. 13.5 How and where do mountains form?
  45. 13.5 How and where do mountains form?
  46. 13.6 How does mountain building relate to the growth of continents?
  47. 13.6 How does mountain building relate to the growth of continents?
  48. Non-Subductable Crust
  49. Non-Subductable Crust 2
  50. 13.6 How does mountain building relate to the growth of continents?
  51. 13.6 How does mountain building relate to the growth of continents?
  52. 13.6 How does mountain building relate to the growth of continents?
  53. Provinces of North America
  54. 13.6 How does mountain building relate to the growth of continents?
  55. 13.6 How does mountain building relate to the growth of continents?
  56. 13.6 How does mountain building relate to the growth of continents?
  57. Island Arcs
  58. 13.6 How does mountain building relate to the growth of continents?

Text and Images from Slide

13.6 How does mountain building relate to the growth of continents?

Coastal range mountains

Image of the Appalachians in central MA

Fig 13.27

The Coastal Range of OR and WA consists of seamounts and island volcanoes. It accreted ~45 million years ago.

The crust under this area of the Appalachians in central MA was a volcanic island arc shoved onto the plate ~450 million years ago.

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