Paper-II
Section A

In about 150 words each, answer any four of the following:

Describe the clastic sedimentary structures

Distinguish between twinning and parting in minerals

Distinguish petrographically between a granite and a syenite

Write on the factors controlling metamorphism and the products of metamorphism

Classify the ultramafic rocks on the basis of mineralogy and other features

Write notes on:

Crystal defects

Optical extinction and dispersion

Structural classification of silicates

Name and composition of two minerals from the groups of carbonate, phosphate, oxide, sulphide and halide

Answer the following questions

Write on the evolution of igneous rocks from fractionation of a basaltic magma

Write on regional dynamo thermal metamorphism, stating the mineralogical and textural characters

Describe the Gondwana basins of India along with a note on their depositional environment and economic importance

Section B

Attempt any four answering in about 150 words each:

Heavy mineral beach deposits of India

Methods of mineral exploration

Industrial and radio-active waste disposal

Elementary thermodynamics

Conservation and utilization of mineral resources

Write on the following:

Origin of the banded iron formation

Base metal sulphide deposits in India

Write on the methods of exploration and mining of metallic ore deposits

Answer the following questions

Write on the cosmic abundances. Of elements, and the composition of the Earth in relation to the chemistry of extra-terrestrial materials

Write on natural disasters and their mitigation

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