PUNJAB PUBLIC SERVICE COMMISSION
COMBINED COMPETITIVE EXAMINATION
FOR RECRUITMENT TO THE POSTS OF
PROVINCIAL MANAGEMENT SERVICE, ETC-2023
CASE NO. 1C2024
SUBJECT: GEOLOGY (PAPER-I)
TIME ALLOWED: THREE HOURS MAXIMUM MARKS: 100
NOTE:
I. All the parts (if any) of each Question must be attempted at one place instead of at different places.
II. Write Q. No. in the Answer Book in accordance with Q. No. in the Q. Paper.
III. No Page/Space be left blank between the answers. All the blank pages of Answer Book must be crossed.
IV. Extra attempt of any question or any part of the question will not be considered.
NOTE: Attempt Five Questions in all. Attempt in Urdu or English.
Where necessary, use neat sketches to elaborate the answers
Q No. 1: Discuss the different hypotheses and theories explaining the origin of the Earth and the Solar System. (20 Marks)
Q No. 2: Briefly describe theory of plate tectonics. Sketch and explain the following interaction within the earth plates and provide examples.
a) Oceanic – Oceanic Convergence
b) Oceanic – Continent Convergence
c) Continent – Continent Convergence (20 Marks)
Q No. 3: Briefly discuss the various Taphonomic and Diagenetic evolution processes with examples. (20 Marks)
Q No. 4: Discuss the principles of stratigraphy and geological correlations? (20 Marks)
Q No. 5: Why Salt Range of Pakistan is called field museum of geology? Explain the Permian and Mesozoic rocks exposed in the Salt Range area with their characteristic features. (20 Marks)
Q No. 6: (a) Describe the textural classification of the Igneous rocks.
(b) Describe the classification of Igneous rocks on the basis of major element chemistry and give examples from Pakistan. (10+10=20 Marks)
Q No. 7: (a) Discuss the significance of banded iron formations in the evolutionary history of the earth.
(b) Discuss the classification of elements with respect to their geochemical affinity. (10+10=20 Marks)
Q No. 8: Discuss the polymorphic transformation in minerals. (20 Marks)
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