8/16/2019 IAS Mains Geology 2004
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(a) Ultramafic rocks in Ophiolite sequence. their petrography
and peuogenesis.
3
(b) Facies of colllact metamorphism and their
characteristics.
3
4. Define sedimelllary facies. Describe continental glacial
and
glacio-lluvial facies
giving the ir salient characteristics with an Indian example.
60
SF..C fJON
5
In about 200 words each. write notes on any three of
theJollowing :
(a) Paragenesis and Zoning in ore deposits. 2
(b) Classification of resources and reserves of ore. 2
(c) Composition of meteorites, their classification and
significance in g e o l o g ~ · c a l
studtes.
(d) Environmental impact ofopencast mining.
6. Write notes on the following in brief:
g
(a) L i ~ d g r e n s classification of Hydrothermal deposits
and their salien har
tensucs.
b) Lower Gondwana coalfields of India: their geological set a
coal
resources. 3()
7. Discuss the methods of geophysical prospecting
defin i ncip le
and
parameters. Describe anyone method and its applications. -
60
8. Write notes on the following. in brief:
(a) Definition of trace elements. Goldschmidt s I or
distribution of trace
elements
and
later modifications of these r s 3()
(b) Landslides as natnral hazards, their c ts and measures of
their
mitigation. 3()
