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Lecture 6

Table of Contents

  1. Formation of Sediment and Sedimentary Rocks
  2. Why Study Sedimentary Rocks?
  3. Why Study Sedimentary Rocks?
  4. Why Study Sedimentary Rocks?
  5. Why Study Sedimentary Rocks?
  6. Why Study Sedimentary Rocks?
  7. Why Study Sedimentary Rocks?
  8. Why Study Sedimentary Rocks?
  9. Why Study Sedimentary Rocks?
  10. Why Study Sedimentary Rocks?
  11. Why Study Sedimentary Rocks?
  12. Why Study Sedimentary Rocks?
  13. Why Study Sedimentary Rocks?
  14. 5.1 How and why do rocks disintegrate to form sediment?
  15. 5.1 How and why do rocks disintegrate to form sediment?
  16. 5.1 How and why do rocks disintegrate to form sediment?
  17. 5.1 How and why do rocks disintegrate to form sediment?
  18. 5.1 How and why do rocks disintegrate to form sediment?
  19. 5.1 How and why do rocks disintegrate to form sediment?
  20. 5.1 How and why do rocks disintegrate to form sediment?
  21. 5.1 How and why do rocks disintegrate to form sediment?
  22. 5.1 How and why do rocks disintegrate to form sediment?
  23. 5.1 How and why do rocks disintegrate to form sediment?
  24. 5.1 How and why do rocks disintegrate to form sediment?
  25. 5.1 How and why do rocks disintegrate to form sediment?
  26. 5.2 What is the link between weathering and sediment?
  27. 5.2 What is the link between weathering and sediment?
  28. 5.2 What is the link between weathering and sediment?
  29. 5.2 What is the link between weathering and sediment?
  30. 5.3 Why are fossils found in sedimentary rocks?
  31. 5.3 Why are fossils found in sedimentary rocks?
  32. 5.3 Why are fossils found in sedimentary rocks?
  33. 5.3 Why are fossils found in sedimentary rocks?
  34. 5.3 Why are fossils found in sedimentary rocks?
  35. 5.3 Why are fossils found in sedimentary rocks?
  36. 5.3 Why are fossils found in sedimentary rocks?
  37. 5.3 Why are fossils found in sedimentary rocks?
  38. 5.3 Why are fossils found in sedimentary rocks?
  39. 5.3 Why are fossils found in sedimentary rocks?
  40. 5.3 Why are fossils found in sedimentary rocks?
  41. 5.4 How does loose sediment become sedimentary rock?
  42. 5.4 How does loose sediment become sedimentary rock?
  43. 5.4 How does loose sediment become sedimentary rock?
  44. 5.5 How are sedimentary rocks classified?
  45. 5.5 How are sedimentary rocks classified?
  46. 5.5 How are sedimentary rocks classified?
  47. 5.5 How are sedimentary rocks classified?
  48. 5.5 How are sedimentary rocks classified?
  49. Sedimentary Rock Chart
  50. 5.5 How are sedimentary rocks classified?
  51. 5.5 How are sedimentary rocks classified?
  52. 5.5 How are sedimentary rocks classified?
  53. 5.5 How are sedimentary rocks classified?
  54. 5.5 How are sedimentary rocks classified?
  55. 5.6 How do sedimentary rocks reveal ancient environments?
  56. 5.6 How do sedimentary rocks reveal ancient environments?
  57. 5.6 How do sedimentary rocks reveal ancient environments?
  58. 5.6 How do sedimentary rocks reveal ancient environments?
  59. 5.6 How do sedimentary rocks reveal ancient environments?
  60. 5.6 How do sedimentary rocks reveal ancient environments?
  61. 5.6 How do sedimentary rocks reveal ancient environments?
  62. 5.6 How do sedimentary rocks reveal ancient environments?
  63. 5.6 How do sedimentary rocks reveal ancient environments?
  64. 5.6 How do sedimentary rocks reveal ancient environments?
  65. 5.6 How do sedimentary rocks reveal ancient environments?
  66. 5.6 How do sedimentary rocks reveal ancient environments?
  67. 5.7 How do we know how to interpret unseen turbidity currents?
  68. 5.7 How do we know how to interpret unseen turbidity currents?
  69. 5.7 How do we know how to interpret unseen turbidity currents?
  70. 5.7 How do we know how to interpret unseen turbidity currents?
  71. 5.7 How do we know how to interpret unseen turbidity currents?
  72. 5.7 How do we know how to interpret unseen turbidity currents?
  73. 5.8 How do plate tectonics and sedimentary rocks connect?
  74. 5.8 How do plate tectonics and sedimentary rocks connect?
  75. 5.8 How do plate tectonics and sedimentary rocks connect?
  76. 5.8 How do plate tectonics and sedimentary rocks connect?

Text and Images from Slide

5.7 How do we know how to interpret unseen turbidity currents?

Map showing a cable that broke due to turbidity

Figure giving km, minutes/seconds for the cable that broke in the previous map

A turbidity current documented in 1929 off Grand Banks in SE Canada. Several telegraph cables immediately broke when an earthquake occurred. An hour later, another cable much farther out to sea broke as well. Over the next 17 hours, progressively farther cables continued to break.

The area has since been sampled and we now know that this event moved 175 km3 of sediment—enough to cover the state of Indiana 1 meter deep.

Fig 5.22

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