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24-Pet-A1 Principles of Stratigraphy and Sedimentation: December 2014

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

  1. Question 1 Transport Distance and Particle Size, Roundness & Sphericity
  2. Question 2 Cumulative Grain-Size Curves – Steep vs. Gently-Sloping
  3. Question 3 Carbonate Platforms and Their Types
  4. Question 4 The Bouma Sequence
  5. Question 5 Textural vs. Mineralogical Maturity of Sandstone
  6. Question 6 Diagenesis and Reservoir Rock Quality
  7. Question 7 Dunham Classification with Embry & Klovan Modifications
  8. Question 8 Best Provenance-Lithology Indicator in Sandstone
  9. Question 9 Framework Grains of Carbonate Sediments
  10. Question 10 Herringbone Cross-Lamination
  11. Question 11 Detrital Grain Contacts vs. Burial Depth
  12. Question 12 Trace Fossil Indicator of High-Energy Sandy Shore
  13. Question 13 Sediment Transport Modes in Fluvial Systems
  14. Question 14 Stability of Calcitic Hard Parts with Increasing Marine Depth
  15. Question 15 Grain Sorting and Reservoir Quality
  16. Question 16 Unconformities and Their Types
  17. Question 17 Chronostratigraphic vs. Geochronologic Units
  18. Question 18 Ranks of Lithostratigraphic Units
  19. Question 19 Basic Stratigraphic Principles for Relative Dating
  20. Question 20 Index Fossils and Stratigraphic Correlation
  21. Question 21 Progradational vs. Retrogradational Parasequence Sets
  22. Question 22 Stacking Patterns of Conformable Lithostratigraphic Units
  23. Question 23 Correct Order of Paleozoic Periods
  24. Question 24 Four Short Definitions

Start with Question 1 →

EGBC National Exam — Petroleum Engineering, 98-Pet-A1 Principles of Stratigraphy & Sedimentation, 2014-Dec. 3 hours duration; closed book, no calculator permitted. The paper has three parts: Part A1 (Questions 1–7, sedimentary processes, 5 marks each, answer any 4 of 7 for 20 marks), Part A2 (Questions 8–15, brief/multiple-choice, 3 marks each, answer any 5 of 8 for 15 marks), and Part B (Questions 16–24, stratigraphy, 5 marks each, answer any 6 of 9 for 30 marks) – a 65-mark maximum.

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); Selley, R.C. & Sonnenberg, S., Elements of Petroleum Geology, 3rd ed., Academic Press (source rocks, reservoir quality); International Commission on Stratigraphy, International Chronostratigraphic Chart (geological time scale).