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Syllabus of Combined Geo-Scientist (Preliminary) Examination by UPSC

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Syllabus of Combined Geo-Scientist (Preliminary) Examination
Stage-I (Objective Type)

Paper-I: General Studies (Common for all streams)

  • Current events of national and international importance.
  • History of India and Indian National Movement.
  • Indian and World Geography -Physical, Social, Economic       Geography of India and the World.
  •  Indian Polity and Governance -Constitution, Political       System, Panchayati Raj, Public Policy, Rights Issues, etc.
  •  Economic and Social Development – Sustainable Development, Poverty, Inclusion, Demographics, Social Sector initiatives, etc.
  • General issues on Environmental Ecology, Bio-diversity and Climate Change – that do not require subject specialisation.
  • General Science

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Stage-I (Objective Type)
Paper-II : Geology/Hydrogeolog

1. Physical Geology

  • Principle of uniformitarianism; origin, differentiation and internal structure of the Earth; origin of atmosphere; earthquakes and volcanoes; continental drift, sea-floor spreading, isostasy, orogeny and plate tectonics;
    geological action of rivers, wind, glaciers, waves; erosional and depositional landforms; weathering processes and products.
    2. Structural Geology
    Stress, strain and rheological properties of rocks; planar and linear structures; classification of folds and faults; Mohr’s circle and criteria for failure of rocks; ductile and brittle shear in rocks; study of toposheets, V-rules and outcrop patterns; stereographic projections of structural elements.

3. Mineralogy

  • Elements of symmetry, notations and indices; Bravais lattices;chemical classification of minerals; isomorphism, polymorphism, solid solution and exsolution; silicate structures; physical and optical properties of common rock forming minerals- olivine, garnet, pyroxene, amphibole, mica, feldspar and quartz.
  • 4. Igneous Petrology
  • Magma types and their evolution; IUGS classification of igneous rocks; forms, structures and textures of igneous rocks; applications of binary and ternary phase diagrams in petrogenesis; magmatic differentiation and assimilation; petrogenesis of granites, basalts, komatiites and alkaline rocks
    (carbonatite, kimberlite, lamprophyre and nepheline syenite).

5. Metamorphic Petrology

  • Limits, types and controls of metamorphism; metamorphic structuresslate, schist and gneiss; metamorphic textures- pre,syn and post tectonicporphyroblasts; concept of metamorphic zone, isograd and facies; geothermal
    gradients, facies series and plate tectonics.

6. Sedimentology

  • Origin of sediments; sedimentary textures, grain-size scale; primary sedimentary structures; classification of sandstone and carbonate rocks; siliciclastic depositional environments and sedimentary facies; diagenesis of carbonate sediments.
    7. Paleontology
  • Fossils and processes of fossilization; concept of species and binomial nomenclature; morphology and classification of invertebrates (Trilobites, Brachiopods, Lamellibranchs, Gastropods and Cephalopods); evolution in
    Equidae and Hominidae; microfossils-Foraminifera, Ostracoda; Gondwana flora.
    8. Stratigraphy
  • Law of superposition; stratigraphic nomenclature lithostratigraphy, biostratigraphy and chronostratigraphy; Archaean cratonic nucleii of Peninsular India (Dharwar, Singhbhum, and Aravalli cratons); Proterozoic mobile belts (Central Indian Tectonic Zone, Aravalli-Delhi and Eastern Ghats); Purana sedimentary basins (Cuddapah and Vindhyan); Phanerozoic stratigraphy of India- Spiti, Kashmir, Damodar valley, Kutch, Trichinopoly, Siwaliks and Indo-Gangetic alluvium.
    9. Economic Geology
  • Properties of mineral deposits- form, mineral assemblage, texture, rockore association and relationship; magmatic, sedimentary, metamorphic, hydrothermal, supergene and weathering-related processes of ore formation;
    processes of formation of coal and petroleum; distribution and geological characteristics of major mineral and hydrocarbon deposits of India.

10. Hydrogeology

  • Groundwater occurrence and aquifer characteristics, porosity, permeability, hydraulic conductivity, transmissivity; Darcy’s Law in homogenous and heterogenous media; Bernoulli equation, Reynold’s number; composition of groundwater; application of H and O isotopes in groundwater
    studies; artificial recharge of groundwater.
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