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18-Geol-A3 Sedimentation and Stratigraphy: May 2015

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

  1. Question 1 Products of Subaerial Weathering
  2. Question 2 Dunham (1964) Limestone Classification with Embry & Klovan (1972) Modification
  3. Question 3 Arenite versus Wacke Sandstones and Reservoir Quality
  4. Question 4 Sorting, Mud Content and Roundness — Sandstone Maturity
  5. Question 5 Framework Particles that Reflect Source-Area Lithology
  6. Question 6 Paleocurrent Indicators and Rose-Diagram Patterns
  7. Question 7 Structural Groups of Anhydrite and Gypsum
  8. Question 8 Sedimentary Phosphorites — Definition and Origin
  9. Question 9 Diagenesis and Reservoir-Quality Controls
  10. Question 10 Carbonaceous Sedimentary Rocks — the Exception
  11. Question 11 Formation of Fluvial Point Bars
  12. Question 12 Ichnofacies and Their Importance
  13. Question 13 Non-Tectonic Synsedimentary Folds and Faults
  14. Question 14 Sea-Level Change and Vertical Stacking Patterns
  15. Question 15 Stratigraphic Discontinuities Representing Temporal Gaps
  16. Question 16 Sequence Stratigraphy versus Lithostratigraphy
  17. Question 17 Applications of the Borehole Caliper Log
  18. Question 18 Interpreting a Biostratigraphic Line of Correlation

Start with Question 1 →

EGBC National Exam — Geological Engineering, 04-Geol-A3, Sedimentation & Stratigraphy, 2015-May. Closed book, 3 hours.

Reference texts: Nichols, Sedimentology and Stratigraphy, 2nd ed. (depositional environments, facies models, flow regime and bedforms, carbonate classification, stratigraphic principles and correlation); Boggs, Petrology of Sedimentary Rocks, 2nd ed. (sandstone and carbonate classification, diagenesis, evaporites, phosphorites); Selley & Sonnenberg, Elements of Petroleum Geology (reservoir quality, subsurface wireline-log interpretation).