Saturday, 14 March 2015

GEOLOGY – 2005 ,PAPER –II, SECTION A, SECTION B

                  Time allowed: three hours     Maximum Marks: 200

Candidates should attempt questions 1 and 5 which are compulsory, and any THREE of the following questions selecting at least ONE question from each Section.

SECTION A

1.       Write on any four of the following in about 150 words each:
(a)    Biogenic sedimentary structures
(b)   Granulitic facies
(c)    Dott’s classification of sandstones
(d)   Metamorphism of calcareous sediments
(e)   Chatoyancy and asterism

2.       Write short notes on:

(a)    Miller indices and parameters
(b)   Amphibole group of minerals
(c)    Uniaxial and Biaxial minerals
(d)   4ˉ 3 m

3.       Write detailed notes on the following:
(a)    Igneous structures citing suitable examples
(b)   Metasomatism
(c)    Eclogite facies

4.       Define sedimentary environments,. Explain in detail, various parameters which control depositional environments.

SECTION B

5.       Write on any four of the following in about 150 words each:

(a)    Oxidation- Reduction potential
(b)   Neyveli lignite deposits
(c)    Principles of seismic methods of exploration
(d)   Comminution and sizing
(e)   Important global environmental impacts due to human activities

6.       Write notes on:
(a)    Iron ore deposits of India
(b)   Diamond deposits of India
(c)    Metamorphism plays vital role in formation of mineral deposits
(d)   Sedimentary ore deposits

7.       Write a detailed account on the various methods of mining used in alluvium placer deposits.

8.       Write explanatory notes on:
(a)    Thermodynamic potential equations
(b)   Core of the earth is Self Exciting Dynamo
(c)    Groundwater quality criteria for drinking water
(d)   Chemical fertilizers and pesticides as biological hazards

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