GEOLOGY
Paper-I

Time Allowed Three Hours Maximum Marks 300

INSTRUCTIONS

Each question is printed both in Hindi and in English.

Answers must be written in the medium specified in the Admission Certificate issued to you, which must be stated clearly on the cover of the answer-book in the space provided for the purpose. No marks will be given for the answers written in a medium other than that specified in the Admission Certificate.

Candidates should attempt Question Nos. 1 and 5 which are compulsory, and any 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.

Draw diagrams, wherever necessary.

Section-A

1. Write critical notes, within 200 words each, on any three of the following 20x3=60

Formation of mid-oceanic ridges and trenches
Types of strain ellipsoid
Tonal variation in aerial photographs, and interpretation of lithology and strncture
Role of regional scale structures 1n the
evolution of landforms
2. With the help of neat sketches, describe the following 30x2=60
Classification of folds based on the orientation of axis and axial plane
Different types of lineation with special reference to their origin
3. What are the different types of plate margins? What types of geologic structures and lithology are associated with each type of margin? 30
With the help of neat sketches, explain the effects of strike faults on the
inclined strata. 30

4. With the help of neat sketches, discuss the following 30x2=60
Application of foliation 1n establishing major structures
Geometric analysis of fracture systems in 3-dimension

Section-B

5. Write critical notes, "vithin 200 words each, on any three of the following 20x3=60

Quaternary climatic changes and
evolution of man

Cretaceous-Tertiary boundary and the
mass extinction
Morphometric paran..eters and their
in terrela tionshi p s
Chronostratigraphic sequences
6. Discuss the following 30x2=60
Application of palaeontologic and palaeo botanic methods in the study of Gondwana tectonics
Analysis of palaeo-sea levels using Foraminifera

7. Discuss the following with neat sketches, wherever required 30x2=60

Tectonothermal evolution of the South Indian shield
Tertiary formations of India and the fossil fuel deposits
8. Elaborate on the following 30x2=60
Computation of aquifer parameters
Geological investigations for constructing tunnels 1n a highly sheared area

Note
English version of the Instructions is printed on the front cover of this question paper.