Paper II
Section A

In about 200 words each, explain any three of the following:

Give an account of twinning in minerals

Diopside-anorthite system

Fades of regional metamorphism

Heavy minerals and their significance

Give the chemical composition and optical properties of Amphihole group of minerals. Add a note on their classification

Write explanatory notes on the following:

Give classification and describe petrography and petrogenesis of charnockites

ACF and AKF diagrams and their utility

Give the classification of sandstones. Add a note on their depositional environment

Section B

In about 200 words each, write notes on any three of the following:

Controls of ore localisation

Types of chemical bonds

Explain the techniques of sampling

Pollution of sea

Write notes on the following, in brief:

Conservation and utilisation of mineral resources

Describe briefly the geology and structure of the Bombay High Petroleum Resources.

Comment on their economic importance

Write notes on the following:

Give an account of the important methods of mining of metallic ores

Describe the mineralogy, geology and ore genesis of copper deposits of Khetri Mines

Write explanatory notes on the following:

Structure and composition of the Earth

Impact of natural hazards on environment. Mitigating measures of any one of these natural hazards