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24-Pet-A1 Principles of Stratigraphy and Sedimentation: May 2016

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Evaporite Precipitation Requirements and Anhydrite/Gypsum Structural Groups
  2. Question 2 Paleocurrent Indicators and Rose-Diagram Depositional Patterns
  3. Question 3 Sedimentary Facies and a Shallowing-Upward Carbonate Succession
  4. Question 4 Sandstone Framework Grains, Matrix and Cement
  5. Question 5 Diagenesis and Its Stages
  6. Question 6 The Deltaic Depositional System and Its Prograding Sequence
  7. Question 7 Compaction, Grain Contacts and Porosity with Burial Depth
  8. Question 8 Coal Rank Series
  9. Question 9 Dunham/Embry-Klovan Carbonate Classification
  10. Question 10 Arenite versus Wacke Sandstones
  11. Question 11 Skolithos Ichnofacies
  12. Question 12 Carbonate Platform Types and Energy Distribution
  13. Question 13 Categories of Biozones
  14. Question 14 Conformable and Unconformable Stratigraphic Contacts
  15. Question 15 Chronostratigraphic versus Geochronologic Units
  16. Question 16 The Geologic Time Scale (Paleozoic–Mesozoic–Cenozoic)
  17. Question 17 Biostratigraphic Unit Scope
  18. Question 18 Depositional Sequences and Systems Tracts
  19. Question 19 Parasequence Stacking Patterns (S versus A)
  20. Question 20 Sedimentary Basins of an Extensional Tectonic Regime

Start with Question 1 →

EGBC National Exam — Petroleum Engineering, 98-Pet-A1 Principles of Stratigraphy & Sedimentation, 2016-May. 3 hours duration; closed book, no calculator permitted. The paper has two parts: Part 1 (Questions 1–12, Sedimentology and Sedimentary Processes – 10 marks each; answer any eight of the twelve, 80 marks total) and Part 2 (Questions 13–20, Stratigraphy and Sedimentary Basin Analysis – 10 marks each; answer any five of the eight, 50 marks total) – a 130-mark maximum (80 for Part 1 + 50 for Part 2).

Reference texts: Boggs, S. Jr., Principles of Sedimentology and Stratigraphy, 5th ed., Pearson (grain texture, sediment transport, bedforms, carbonate/evaporite systems, sequence stratigraphy, unconformities, stratigraphic principles); Tucker, M.E., Sedimentary Petrology, 3rd ed., Blackwell (carbonate classification, diagenesis, dolomitization); Nichols, G., Sedimentology and Stratigraphy, 2nd ed., Wiley-Blackwell (fluvial systems, sequence stratigraphy, stratigraphic units); Reading, H.G. (ed.), Sedimentary Environments: Processes, Facies and Stratigraphy, 3rd ed., Blackwell (facies models, trace fossils, coastal processes); Selley, R.C. & Sonnenberg, S., Elements of Petroleum Geology, 3rd ed., Academic Press (source rocks, basin classification, reservoir quality); International Commission on Stratigraphy, International Chronostratigraphic Chart (geological time scale).