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Geological Time scale - General characterisitcs and descriptive study of the Archaean, Cuddapah, Vindhyan and Gondwana systems of Peninsular India - Cretaceous system of Tamil Nadu.

UNIT IV - PALEONTOLOGY :- Modes of preservation of fossils - Uses of fossils - Morphological characters of the following groups:- Lamellibrachia, Gasteropodis, Cephalopds, Brachiopods and Triobites.

UNIT V - CRYSTALLOGRAPHY :- Definition of Crystal - Faces - Forms - Interfacial angle - Symmetry - crystallographic axes - Laws of crystallography - Study of the Normal classes of six systems.

UNIT VI - MINERALOGY:- Petrological microscope, parts, accessories and uses - Physical properties of minerals - Descriptive study of the following:- Quartz and its varities, Feldspar, Pyroxene, Amphibole, Mica, Garnet - Andalusite, Kyanite, Sillimanite.

UNIT VII - IGNEOUS PETROLOGY:- Textures and Microstructures of Igneous rocks - Classification Bowen's reaction principle - Descriptive study of the following:- Granite, Syenite, Diorite, Gabbro and Ultramafies - Differentiation and Assimilation.

UNIT VIII - SEDIMENTARY AND METAMORPHIC PETROLOGY:- Classification of Sedimentary rocks - Descriptive study of Residual, Clastic and Organic deposits. Agents and kinds of metamorphism - Study of Greenschists, Amphibolites and Charnockites.

UNIT IX - ECONOMIC GEOLOGY -I :- Definition of Ore, Tenor, Gangue - Bateman's classification of Ore deposits - Study of the following processes:- Magmatic concentration, Hydrothermal, Evaporation, Placer Deposits and Oxidation and Supergene Enrichment - Origin and Occurrence of Coal and petroleum in Iindia.

UNIT X - ECONOMIC GEOLOGY - II :- Study of properties, mode of occurrence, Uses and Distribution in India of the following:- Gold, Iron, Aluminium and Copper. - Descriptive study and uses of the following:- Magnesite, Clay, Calcite and Phosphatic nodules.