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24-Pet-A1 Principles of Stratigraphy and Sedimentation: Undated paper

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

  1. Question 1 Sandstone Classification – Procedure and Classes
  2. Question 2 Limestone Classification – Folk and Dunham Schemes
  3. Question 3 Alluvial Fans versus Deltas – Morphological and Sedimentological Differences
  4. Question 4 Turbidite Depositional Systems and the Proximal-to-Distal Facies Trend
  5. Question 5 Conglomerate, Diamictite and Breccia – Definitions and Genesis
  6. Question 6 Coal Rank Series – Multiple Choice
  7. Question 7 Hemipelagic versus Pelagic Sediments
  8. Question 8 Total versus Effective Porosity in Carbonate Rocks
  9. Question 9 Rip Currents and Longshore Currents
  10. Question 10 Hydrolysis Weathering of Potassium Feldspar
  11. Question 11 The Principle of Fossil Succession and Biostratigraphy
  12. Question 12 The Supply/Accommodation (S/A) Ratio and Parasequence Stacking
  13. Question 13 Geochronostratigraphy versus Geochronology
  14. Question 14 Acoustic Impedance and Seismic Reflection
  15. Question 15 Walther's Law of Facies Succession
  16. Question 16 Biostratigraphic Units – Multiple Choice
  17. Question 17 Wireline Logs for Subsurface Stratigraphic Correlation
  18. Question 18 Applications of Sedimentary Basin Analysis
  19. Question 19 Stratigraphic Terminology – Matching Exercise

Start with Question 1 →

EGBC National Exam — Petroleum Engineering, 17-Pet-A1 Principles of Stratigraphy & Sedimentation, 2019-May. 3 hours duration; closed book, approved Sharp/Casio calculator permitted. The paper has two parts: Part A (Questions 1–10, Sedimentology and Sedimentary Processes) – Questions 1 and 2 are mandatory (10 marks each, 20 marks), plus any five of the remaining eight (3–10) at 6 marks each (30 marks), for a Part A total of 50 marks; and Part B (Questions 11–19, Stratigraphy and Sedimentary Basin Analysis) – answer any six of the nine at 6 marks each, for a Part B total of 36 marks – an 86-mark maximum (50 for Part A + 36 for Part B).

Check: the mark values and question count used throughout this solution (6 marks each for Questions 3–19, Part A = 50, Part B = 36, maximum = 86) are as printed on the paper.

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 (sandstone/carbonate classification, diagenesis, porosity); Nichols, G., Sedimentology and Stratigraphy, 2nd ed., Wiley-Blackwell (fluvial/deltaic/deep-marine systems, sequence stratigraphy, stratigraphic units); Reading, H.G. (ed.), Sedimentary Environments: Processes, Facies and Stratigraphy, 3rd ed., Blackwell (facies models, alluvial fans, deltas, deep-marine systems); Selley, R.C. & Sonnenberg, S., Elements of Petroleum Geology, 3rd ed., Academic Press (basin analysis, well-log correlation, seismic/acoustic impedance); International Commission on Stratigraphy, International Chronostratigraphic Chart (geological time scale).