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Lecture 3

Table of Contents

  1. Rocks and Rock-Forming Processes
  2. Why study rocks?
  3. Why study rocks?
  4. Why study rocks?
  5. Why study rocks?
  6. 3.1 How and where do rocks form?
  7. 3.1 How and where do rocks form?
  8. 3.1 How and where do rocks form?
  9. Why study rocks?
  10. 3.1 How and where do rocks form?
  11. 3.1 How and where do rocks form?
  12. 3.1 How and where do rocks form?
  13. 3.1 How and where do rocks form?
  14. 3.1 How and where do rocks form?
  15. 3.1 How and where do rocks form?
  16. 3.1 How and where do rocks form?
  17. 3.1 How and where do rocks form?
  18. 3.1 How and where do rocks form?
  19. 3.2 Can rocks be classified according to the processes that form them?
  20. 3.2 Can rocks be classified according to the processes that form them?
  21. 3.2 Can rocks be classified according to the processes that form them?
  22. 3.2 Can rocks be classified according to the processes that form them?
  23. 3.2 Can rocks be classified according to the processes that form them?
  24. 3.2 Can rocks be classified according to the processes that form them?
  25. 3.2 Can rocks be classified according to the processes that form them?
  26. 3.2 Can rocks be classified according to the processes that form them?
  27. 3.2 Can rocks be classified according to the processes that form them?
  28. 3.2 Can rocks be classified according to the processes that form them?
  29. 3.3 How do we know how to determine rock origins?
  30. 3.3 How do we know how to determine rock origins?
  31. 3.3 How do we know how to determine rock origins?
  32. 3.3 How do we know how to determine rock origins?
  33. 3.3 How do we know how to determine rock origins?
  34. 3.4 How are the rock classes related to one another?
  35. 3.4 How are the rock classes related to one another?
  36. 3.4 How are the rock classes related to one another?
  37. 3.4 How are the rock classes related to one another?
  38. 3.4 How are the rock classes related to one another?
  39. 3.4 How are the rock classes related to one another?
  40. Katrina Update

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Text Box: 3.3 How do we know how to determine rock origins?

03_10

Neptunism: Abraham Werner (1749-1817) believed that all rocks derived from processes of chemical precipitation.

Concluded that the bottom layers of Earth's rocks were the least soluble and thus first to precipitate (primitive rocks), and that they were overlain by stratified rocks and finally "washed deposits" of loose materials. Volcanic activity was caused by coal fires underground melting rock overhead.

Fig 3.10

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