GEOLOGY
Paper-I

ITime Allowed: Three Hours IIMaximum Marks: 200 I
INSTRUCTIONS
Candidates should attempt Question Nos. 1 and 5 which are compulsory, and THREE of the remaining questions, selecting at least ONE question from each Section.
The number of marks carried by each question is indicated at the end of the question. Answers must be written in ENGLISH only. Suitable sketches may be drawn wherever required.

Section-A
1. Write critical notes, within 150 words each, on any four of the following; lOx4=40
Origin of the earth
Mechanics of continental drifting
Geomorphology structures and its relation to
Unconformities
Dip, throw and heave of a fault

2. Discuss in detail the behaviour of minerals and rocks under deformation conditions. Illustrate with neat sketches. 40
3. Discuss the following: 20+20
Merits and applications of aerial photography

Applications of geomorphology in mineral prospecting

4. Discuss in detail the principles of geological mapping and map reading. 40

Section-B

5. Write critical notes, within 150 words each) on any four of the following: lOx4=40
Modes of preservation of fossils

Stratigraphic utility of Ammonoidea

Confined aquifer

Chronostratigraphic classification of rocks

Perched water table


6. Discuss the application of microfossils In paleoclimatic interpretations. 40 .

7. Discuss the Permo-Triassic boundary In India. 40


8. What is the role of faulting in the selection of a tunnel site? 20
What are the different groundwater conditions which affect the tunnel rocks? 20