Indian Statistical Institute Scientific Assistant A Geology
Earth and Solar System – Layered structure of Earth, Earthquakes and volcanoes, Three different types of rocks, Weathering and Erosion, Rock Cycle, atmosphere, biosphere and lithosphere.
Concept of Time in Geological Studies – Geological Time Table, Introduction to geochronological methods and their application in geological studies, Fundamental laws of strtigraphy, Superposition, Faunal succession and correlation.
Plate Tectonics – Continental drift vis-a-vis plate tectonics, Sea-floor spreading, Mid Oceanic Ridges, Trenches, Transform faults and island arcs, Concept of isostasy, Volcanoes and volcanism, Earthquake weathering; Erosion; Mass wasting; Geological work of wind, River and glacier, Formation of Soil, Soil profile and soil types.
Rock Forming Minearls – Minerals – definition and classification, Physical and chemical properites. Crystal structure and its controls; bonding and coordination principles, Classification of slicate groups based on structure and derivation, Properties of elements, The periodic table, Chemical bonding, States of matter.
Crystallography – Crystal symmetry and classification of crystals into point groups, Space groups and crystal systems. Optical behaviour of crystals- Isotropic and anisotropic minerals; Relation between crystallographic and optical axes of crystals. Pleochroism and pleochroic scheme; Extinction; Study of interference figures.
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