TNPSC சிறப்பு பகுதி

                                                                        GEOLOGY
                                              ( POST GRADUATE DEGREE STANDARD) 
UNIT I - GENERAL GEOLOGY AND GEOMORPHOLOGY
Origin and age of the Earth - Interior of the Earth - Isostasy – Continental drift –
Seafloor spreading – Plate tectonics - Volcanoes and earthquakes - Effects and
causes – Seismic zonation of India.
Landforms - their types and developments - Classification of shorelines and their
evolution – submarine canyons - Geosynclines - Island arcs.
UNIT-II - STRATIGRAPHY
Modern methods of stratigraphic correlation - Cretaceous - Tertiary (K/T) boundary
problem with special reference to Tamil Nadu - Nature and age of the Deccan Traps -
Cretaceous of Trichy - Classification and economic importance of Dharwar, Cuddapah,
Vindhyan, Gondwana group – Palaeozoic formations - Jurassic of Kutch – Siwaliks.
UNIT III - PALEONTOLOGY
Evolution and stratigraphic importance of Ammonoids, Trilobites and Graptolites -
Gondwana flora - their significance and paleoclimatic conditions - Field and laboratory
techniques of micropaleontology - Application of micropaleontology in oil exploration.
UNIT IV - STRUCTURAL GEOLOGY
Mechanical properties of rocks - Mechanics and causes of folding and faulting -
Classification of folds and faults - Recognition of folds and faults in the field - Joints -
Types of unconformity and their recognition in the field.
UNIT V MINERALOGY AND CRYSTALLOGRAPHY
Physical, chemical and optical properties of Feldspars, Feldspathoids, Pyroxene,
Amphibole, Olivine and Mica groups - Stereographic and Gnomonic projections of
natural crystals of normal classes - Derivation of 32 classes of symmetry - Napier's
theorem - Equations of a normal - Bragg's law - X-ray diffraction method.

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