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18-Geol-A1 Mineralogy and Petrology: May 2016

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

  1. Question 1 Mica, Amphibole and Pyroxene — Crystallographic Differences
  2. Question 2 Sulphide Ore Minerals — Sn, Zn, Ni, Pb, Cu
  3. Question 3 Magmatic Differentiation
  4. Question 4 Cumulate Processes — Categories by Intercumulus Liquid
  5. Question 5 Four Basic Agents of Metamorphism
  6. Question 6 Contact Metamorphism
  7. Question 7 Ignimbrites — Formation and Internal Stratigraphy
  8. Question 8 Metamorphic Reaction Mechanisms
  9. Question 9 Metamorphism vs. Metasomatism — Exoskarn, Endoskarn and Hornfels
  10. Question 10 Oceanic Crust — Cross Section, Age Contrast and Subduction
  11. Question 11 Metamorphic Index Mineral, Facies and Facies Series
  12. Question 12 AFM Diagrams — Barrovian Index Mineral Progression
  13. Question 13 Volcanic Eruption Types

Start with Question 1 →

EGBC National Exam — Geological Engineering, 04-Geol-A1 Mineralogy and Petrology, 2016-May. Closed book; no calculator permitted. Part 1 requires all six 10-mark short-answer questions (60 marks); Part 2 instructs "four of the seven ten-mark questions" (40 marks).

Reference texts: Klein & Dutrow, Manual of Mineral Science, 23rd ed. (mineral/silicate structural classification, ore mineralogy); Winter, Principles of Igneous and Metamorphic Petrology, 2nd ed. (magmatic differentiation, cumulates, metamorphic reactions and facies, AFM projections, volcanic processes, oceanic crust petrogenesis); Nesse, Introduction to Optical Mineralogy, 4th ed. (index-mineral optics); Boggs, Petrology of Sedimentary Rocks, 2nd ed. (sedimentary/pyroclastic textural context).