Total No. of Printed Pages 3 Roll No. ............................ 1[CCE.M]1
Geology-II

Time Three Hours Maximum Marks 300

INSTRUCTIONS

Answers must be written in English.


All questions carry equal marks.


The answer to each question or part thereof should begin on a fresh page.

Your answers should be precise and coherent.


The part/parts of the same question must be answered together and should not be interposed between answers to other questions.


Candidates should attempt six questions selecting one question from each section.


If you encounter any typographical error, please read it as it appears in the text book.
(viii) Candidates are in their own interest advised to go through the General Instructions on the back side of the title page of the Answer Script for strict adherence.
No continuation sheets shall be provided to any candidate under any circumstances.

HRI-28355 1 Contd.

Candidates shall put a cross on blank pages of Answer Script.


No blank page be left in between answer to various questions.


SECTION-A

1.
What is twinning Give a detailed account of various types of twinning. Add a note on the twin laws applied in the crystal systems.

2.
Write short notes on any two


Use of stereographic projections in crystallography


14 Bravi's space lattices


Crystal symmetry of Tetragonal system.





SECTION-B

3.
Write an essay on Extinction. Add a note on the various types of extinction exhibited by minerals under the microscope.

4.
Discuss the following


Optical Indicatrix


Mica Plate and Quartz Wedge





SECTION-C

5.
Give an account of the physical, chemical and optical properties of Amphibole group of minerals.

6.
Write short notes on any two


Isomorphism


Silicate structures


Mica Group.





SECTION-D

7. Write notes on any two of the following

Bowen's Reaction Principle


Charnockites


Tabular classification of Igneous Rocks.



8. Discuss any two of the following

Provenance


Lithification and Diagenesis


Structures of Sedimentary rocks.



9. Write short notes on any two

AKF Diagrams


Facies of metamorphism


Textures of metamorphic rocks.



SECTION-E

10.
Give a detailed account of the Hydrothermal process of formation of mineral deposits.

11.
Write a note on any two of the following


National Mineral Policy


Coal Fields of India


Indian Mineral Wealth.





SECTION-F

12.
Write an essay on various mining methods utilised in mining of ores.

13.
Discuss any two of the following


Application of geology in tunnels


Use of Aerial photographs for geological studies.


Occurrence of groundwater in different rock types.




HRI-28355 2 Contd. HRI-28355 3