Paper-II
Section A

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

How are the projection diagrams used to represent crystal symmetry

Essential and accessory minerals of Charnockite and Carbonalite

Characters of migmatites and granulites

Sedimentary structures and their significance

Retrograde metamorphism

Describe the processes of magmatic crystallization and assimilation. Illustrate your answer with examples from ultrabasic rocks and alkaline rocks

Write detailed notes on the following giving suitable examples and diagrams:

Pleochroism and extinction angles in the amphibole group of minerals

Structural classification of silicates

Use of ACF and AKF diagrams in metamorphic petrology

Deccan volcanic province

Name some common non-elastic sedimentary rocks. Write in details about their occurrence, petrography, classification and depositional environment

Section B

Attempt any four answering in about 150 words each:

Environmental impact of indiscrete disposal of radioactive waste

Deposits of petroleum in India

Methods of exploration in metallic ores

Incidence of floods and landslides in India

Estimation of ore reserves of bauxite (Aluminium)

Write an essay on the cosmic abundance of elements. Illustrate your answer by discussing the composition of the earth and the meteorites

Write detailed notes on the following, giving suitable examples:

Chemical bonding, coordination numbers, isomorphism and polymorphism in minerals

Pollution of surface water resources in India

Sampling techniques and estimation of reserves of ore

Indian deposites of aluminium and copper

Write brief notes on:

Ore textures and structures

Indian deposites of uranium and thorium

Mineral beneficiation and ore-dressing

Structure and internal composition of earth