CSS Geology Past Paper 2020

PART-2(Subjective) 80 Marks

Attempt ONLY FOUR questions from PART-II by selecting TWO questions from
EACH SECTION. (20×4)

PART-II
SECTION-I

Here is the revised version with the specified formatting:

Q. No. 2. Differentiate between weathering, erosion, and transportation. Elaborate the various agents and types of weathering.

Q. No. 3. What are lithostratigraphic and chronostratigraphic units? Discuss the various laws of stratigraphy.

Q. No. 4. Explain isomorphism and polymorphism through examples. Give a detailed account of the classification of silicate minerals.

Q. No. 5. Differentiate between lineation and foliation. Discuss various structural controls on the mechanical properties of materials.

SECTION-II

Q. No. 6. Differentiate between eustatic and relative sea level curves. Discuss the relationship between eustacy, accommodation space, and sedimentation.

Q. No. 7. Differentiate between hydrocarbon source and reservoir rocks. Elaborate the various trapping mechanisms of hydrocarbons.

Q. No. 8. Write short notes on any TWO of the following:
(a) Coal rank and coal series
(b) Geological controls on the selection of mega dam sites
(c) Occurrences of radioactive deposits in Pakistan