All India Govt Job Notification
UPSC combined geo-scientist Syllabus 2021: post-40
Posted on: 9, October 2020
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UPSC combined geo-scientist Syllabus 2021:The recruitment process for the vacancy of UPSC which was released through the official notification of the UPSC Recruitment Board is about to start soon. Where 40 will be recruited.
So you can understand how much competition there is going to be. If you want to survive in this competition, then you have to do smart work along with hard work.

  1. First of all, you have to study the syllabus properly
  2. The previous year’s cut off should be studied.
  3. You need to know the exam pattern.
  4. By looking at the UPSC combined geo-scientist Syllabus 2021, you will understand which place is stronger, which place is moderate and which place is week.
  5. Understand that a strong place should be kept in a little touch while studying. The average place has to be made strong, and the week place has to be made average.
    In order to do all this work, we first need to know the proper UPSC combined geo-scientist Syllabus 2021 and exam pattern which is discussed very well below. 
UPSC combined geo-scientist Syllabus 2021

UPSC combined geo-scientist Syllabus 2021:

The syllabus of Stage I and Stage II of UPSC combined geo-scientist is different from the above, so, we have to prepare according to the syllabus with the right strategy, let’s get to know the syllabus without further ado.

UPSC combined geo-scientist Recruitment 2021


Stage-I (Objective Type)Paper-I General Studies (Common for all streams) 
  1. Current events of national and international importance.
  2. History of India and Indian National Movement.
  3. Indian and World Geography -Physical, Social, Economic Geography of India and the World.
  4. Indian Polity and Governance -Constitution, Political System, Panchayati Raj, Public Policy,Rights Issues, etc.
  5. Economic and Social Development – Sustainable Development, Poverty, Inclusion,Demographics, Social Sector initiatives, etc.
  6. General issues on Environmental Ecology, Bio-diversity and Climate Change – that do not require subject specialisation
  7. General Science
Paper-IIGeology/Hydrogeology 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.
  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.
 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.
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, komatiiites and alkaline
rocks (carbonatite, kimberlite, lamprophyre and nepheline syenite).
Metamorphic Petrology Limits, types and controls of metamorphism; metamorphic structures- slate, schist and
gneiss; metamorphic textures- pre, syn and post tectonic porphyroblasts; concept of metamorphic
zone, isograd and facies; geothermal gradients, facies series and plate tectonics.
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.
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.
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 IndiaSpiti, Kashmir, Damodar valley, Kutch, Trichinopoly, Siwaliks and Indo-Gangetic alluvium.
Economic Geology Properties of mineral deposits- form, mineral assemblage, texture, rock-ore 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. 
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.
  ChemistryChemical periodicity: Schrödinger equation for the H-atom. Radial distribution curves for 1s, 2s, 2p, 3s, 3p, 3d
orbitals. Electronic configurations of multi-electron atoms.
Periodic table, group trends and periodic trends in physical properties. Classification of
elements on the basis of electronic configuration. Modern IUPAC Periodic table. General
characteristics of s, p, d and f block elements. Effective nuclear charges, screening effects, atomic
radii, ionic radii, covalent radii. Ionization enthalpy, electron gain enthalpy and electronegativity.
Group trends and periodic trends in these properties in respect of s-, p- and d-block elements.
General trends of variation of electronic configuration, elemental forms, metallic nature, magnetic
properties, catenation and catalytic properties, oxidation states, aqueous and redox chemistry in
common oxidation states, properties and reactions of important compounds such as hydrides,
halides, oxides, oxy-acids, complex chemistry in respect of s-block and p-block elements.
   Chemical bonding and structure: Ionic bonding: Size effects, radius ratio rules and their limitations. Packing of ions in
crystals, lattice energy, Born-Landé equation and its applications, Born-Haber cycle and its
applications. Solvation energy, polarizing power and polarizability, ionic potential, Fajan’s rules.
Defects in solids.
Covalent bonding: Valence Bond Theory, Molecular Orbital Theory, hybridization. Concept of
resonance, resonance energy, resonance structures.
Coordinate bonding: Werner theory of coordination compounds, double salts and complex salts.
Ambidentate and polydentate ligands, chelate complexes. IUPAC nomenclature of coordination
compounds. Coordination numbers, Geometrical isomerism. Stereoisomerism in square planar and
octahedral complexes.
   Acids and bases: Chemical and ionic equilibrium. Strengths of acids and bases. Ionization of weak acids and
bases in aqueous solutions, application of Ostwald’s dilution law, ionization constants, ionic product of water, pH-scale, effect of temperature on pH, buffer solutions and their pH values, buffer action &
buffer capacity; different types of buffers and Henderson’s equation. 
   Theoretical basis of quantitative inorganic analysis: Volumetric Analysis: Equivalent weights, different types of solutions, normal and molar solutions.
Primary and secondary standard substances.
General principles of different types of titrations: i) acid-base, ii) redox, iii) complexometric, iv)
Precipitation. Types of indicators – i) acid-base, ii) redox iii) metal-ion indicators.
   Kinetic theory and the gaseous state: Kinetic theory of gases, average kinetic energy of translation, Boltzmann constant and
absolute scale of temperature. Maxwell-Boltzmann distribution of speeds. Calculations of average,
root mean square and most probable velocities. Collision diameter; collision number and mean free
path; frequency of binary collisions; wall collision and rate of effusion.
   Chemical thermodynamics and chemical equilibrium: First law and its applications to chemical problems. Thermodynamic functions. Total
differentials and state functions. Free expansion, Joule-Thomson coefficient and inversion
temperature. Hess’ law.
Applications of Second law of thermodynamics. Gibbs function (G) and Helmholtz function (A),
Gibbs-Helmholtz equation, criteria for thermodynamic equilibrium and spontaneity of chemical
   Solutions of non-electrolytes:Colligative properties of solutions, Raoult’s Law, relative lowering of vapour pressure, osmosis
and osmotic pressure; elevation of boiling point and depression of freezing point of solvents.
Solubility of gases in liquids and solid solutions.
   Electrochemistry: Cell constant, specific conductance and molar conductance. Kohlrausch’s law of independent
migration of ions, ion conductance and ionic mobility. Equivalent and molar conductance at infinite
dilution. Debye-Hückel theory. Application of conductance measurements. Conductometric
titrations. Determination of transport number by moving boundary method.
   Basic organic chemistry: Delocalized chemical bond, resonance, conjugation, hyperconjugation, hybridisation, orbital
pictures of bonding sp3, sp2, sp: C-C, C-N and C-O system), bond polarization and bond
polarizability. Reactive intermediates: General methods of formation, relative stability and reactivity
of carbocations, carbanions and free radicals.
    Stereochemistry:Configuration and chirality (simple treatment of elements of symmetry), optical isomerism of
compounds containing two to three stereogenic centres, R,S nomenclature, geometrical isomerism in
compounds containing two C=C double bonds (E,Z naming), and simple cyclic systems, Newman
projection (ethane and substituted ethane).
   Types of organic reactions: Aliphatic substitution reactions: SN1, SN2 mechanisms, stereochemistry, relative reactivity in
aliphatic substitutions. Effect of substrate structure, attacking nucleophile, leaving group and
reaction medium and competitive reactions.
Elimination reactions: E1, E2, mechanisms, stereochemistry, relative reactivity in aliphatic
eliminations. Effect of substrate structure, attacking base, leaving group, reaction medium and
competitive reactions, orientation of the double bond, Saytzeff and Hoffman rules.
Addition reactions: Electrophilic, nucleophilic and radical addition reactions at carbon-carbon
double bonds.
Electrophilic and nucleophilic aromatic substitution: Electrophilic (halogenation, sulphonation,
nitration, Friedal-Crafts alkylation and acylation), nucleophilic (simple SNAr, SN1 and aryne
   Molecular Rearrangements: Acid induced rearrangement and Wagner-Meerwein rearrangements. Neighbouring group
Stage-II (Descriptive Type) Paper-IGeology :Section A-Physical geology and remote sensingEvolution of Earth; Earth’s internal structure; earthquakes and volcanoes; principles of geodesy,
isostasy; weathering- processes and products; geomorphic landforms formed by action of rivers,
wind, glaciers, waves and groundwater; features of ocean floor; continental shelf, slope and rise;
concepts of landscape evolution; major geomorphic features of India- coastal, peninsular and extra
Electromagnetic spectrum; electromagnetic bands in remote sensing; spectral signatures of soil,
rock, water and vegetation; thermal, near infra-red and microwave remote sensing; digital image
processing; LANDSAT, IRS and SPOT- characteristics and use; aerial photos- types, scale, parallax,
relief displacement; elements of image interpretation.
   Section B. Structural geology Principles of geological mapping; kinematic and dynamic analysis of deformation; stress-strain
relationships for elastic, plastic and viscous materials; measurement of strain in deformed rocks;
structural analysis of fold, cleavage, boudin, lineation, joint, and fault; stereographic projection of
linear and planar structures; superposed deformation; deformation at microscale- dynamic and
static recrystallisation, controls of strain rate and temperature on development of microfabrics;
brittle and ductile shear zones; time relationship between crystallisation and deformation,
calculation of paleostress.
   Section C. Sedimentology Classification of sedimentary rocks; sedimentary textures-grain size, roundness, sphericity, shape
and fabric; quantitative grain size analysis; sediment transport and deposition- fluid and sediment
gravity flows, laminar and turbulent flows, Reynold’s number, Froude number, grain entrainment,
Hjulstrom diagram, bed load and suspension load transport; primary sedimentary structures; penecontemporaneous deformation structure; biogenic structures; principles and application of
paleocurrent analysis; composition and significance of different types of sandstone, limestone,
banded iron formation, mudstone, conglomerate; carbonate diagenesis and dolomitisation;
sedimentary environments and facies-facies models for fluvial, glacial, deltaic, siliciclastic shallow
and deep marine environments; carbonate platforms- types and facies models; sedimentation in
major tectonic settings; principles of sequence stratigraphy-concepts, and factors controlling base
level changes, parasequence, clinoform, systems tract, unconformity and sequence boundary. 
   Section D. Paleontology Fossil record and geological time scale; modes of preservation of fossils and concept of taphonomy;
body- and ichno-fossils, species concept, organic evolution, Ediacara Fauna; morphology and time
range of Graptolites, Trilobites, Brachiopods, Lamellibranchs, Gastropods, Cephalopods, Echinoids
and Corals; evolutionary trends in Trilobites, Lamellibranchs, Gastropods and Cephalopods;
micropaleontology- methods of preparation of microfossils, morphology of microfossil groups
(Foraminifera, Ostracoda), fossil spores, pollen and dinoflagellates; Gondwana plant fossils and their
significance; vertebrate life through ages, evolution in Proboscidea, Equidae and Hominidae;
applications of paleontological data in stratigraphy, paleoecology, and paleoclimatology; mass
   Section E. StratigraphyPrinciples of stratigraphy-code of stratigraphic nomenclature of India; lithostratigraphy,
biostratigraphy, chronostratigraphy and magnetostratigraphy; principles of stratigraphic correlation;
characteristics of Archean granite-greenstone belts; Indian stratigraphy- geological evolution of
Archean nucleii (Dharwar, Bastar, Singhbhum, Aravalli and Bundelkhand); Proterozoic mobile beltsEastern Ghats Mobile Belt, Southern Granulite Terrain, Central Indian Tectonic Zone, Aravalli-Delhi
Belt, North Singhbhum Mobile Belt; Proterozoic sedimentary basins (Cuddapah and Vindhyan);
Phanerozoic stratigraphy- Paleozoic (Spiti, Kashmir and Kumaon), Mesozoic (Spiti, Kutch, Narmada
Valley and Trichinopoly), Gondwana Supergroup, Cenozoic (Assam, Bengal basins, Garhwal-Shimla
Himalayas); Siwaliks; boundary problems in Indian stratigraphy.
Stage-II (Descriptive Type)Paper-IIGeology Section A. Mineralogy Symmetry, motif, Miller indices; concept of unit cell and Bravais lattices; 32 crystal classes; types of
bonding, Pauling’s rules and coordination polyhedra; crystal imperfections-defects, twinning and
zoning; polymorphism, pseudomorphism, isomorphism and solid solution; physical properties of
minerals; polarising microscope and accessory plate; optical properties of minerals- double
refraction, polarisation, pleochroism, sign of elongation, interference figure and optic sign; structure,
composition, physical and optical properties of major rock-forming minerals- olivine, garnet,
aluminosilicates, pyroxene, amphibole, mica, feldspar, clay, silica and spinel group.
   Section B. Geochemistry and isotope geology Chemical composition and characteristics of atmosphere, lithosphere, hydrosphere; geochemical
cycles; meteorites-types and composition; Goldschmidt’s classification of elements; fractionation of
elements in minerals/rocks; Nernst’s partition coefficient (compatible and incompatible elements),
Nernst-Berthelot partition coefficient and bulk partition coefficient; Fick’s laws of diffusion and
activity composition relation (Roult’s and Henry’s law); application of trace elements in petrogenesis;
principles of equilibrium and Rayleigh fractionation; REE patterns, Eh and pH diagrams and mineral
stability.Half-life and decay equation; dating of minerals and rocks with potassium-argon, rubidiumstrontium, uranium-lead and samarium-neodymium isotopes; petrogenetic implications of
samarium-neodymium and rubidium-strontium systems; stable isotope geochemistry of carbon,
oxygen and sulphur and their applications in geology; monazite chemical dating.
   Section C.
Igneous petrology
Viscosity, temperature and pressure relationships in magmas; IUGS classification of plutonic and
volcanic rocks; nucleation and growth of minerals in magmatic rocks, development of igneous
textures; magmatic evolution (differentiation, assimilation, mixing and mingling); types of mantle
melting (batch, fractional and dynamic); binary (albite-anorthite, forsterite-silica and diopsideanorthite) and ternary (diopside-forsterite-silica, diopside-forsterite-anorthite and nephelinekalsilite-silica) phase diagrams and relevance to magmatic crystallization; petrogenesis of granites,
basalts, ophiolite suite, komatiites, syenites, boninites, anorthosites and layered complexes, and
alkaline rocks (carbonatite, kimberlite, lamproite, lamprophyre); mantle metasomatism, hotspot
magmatism and large igneous provinces of India.
   Section D. Metamorphic petrology Limits and physico-chemical controls (pressure, temperature, fluids and bulk rock composition) of
metamorphism; concept of zones, facies, isograds and facies series, geothermal gradients and
tectonics of orogenic belts; structures, micro-structures and textures of regional and contact
metamorphic rocks; representation of metamorphic assemblages (ACF, AKF and AFM diagrams);
equilibrium concept in thermodynamics; laws of thermodynamics, enthalpy, entropy, Gibb’s free
energy, chemical potential, fugacity and activity; tracing the chemical reactions in P-T space, phase
rule and mineralogical phase rule in multi-component system; Claussius-Clapeyron equation and
slopes of metamorphic reactions; heat flow, diffusion and mass transfer; Fourier’s law of heat
conduction; geothermobarometry; mass and energy change during fluid-rock interactions;
charnockite problem, formation of skarns, progressive and retrogressive metamorphism of pelitic,
calcareous and basic rocks; P-T-t path and tectonic setting.
   Section E. GeodynamicsPhase transitions and seismic discontinuities in the Earth; seismic waves and relation between Vp,
Vs and density; seismic and petrological Moho; rheology of rocks and fluids (Newtonian and nonNewtonian liquids); rock magnetism and its origin; polarity reversals, polar wandering and
supercontinent cycles; continental drift, sea floor spreading; gravity and magnetic anomalies of
ocean floors and their significance; mantle plumes and their origin; plate tectonics- types of plate
boundaries and their inter-relationship; heat flow and heat production of the crust.
Stage-II (Descriptive Type) Hydrogeology Section A. Occurrence and distribution of groundwater Origin of water on Earth; global water cycle and budget; residence time concept, geologic formations
as aquifers; confined and unconfined aquifers; groundwater table mapping and piezometric nests;
porosity, void ratio, effective porosity and representative porosity range; primary and secondary
porosities; groundwater zonation; specific retention, specific yield; groundwater basins; springs.
   Section B. Groundwater movement and well hydraulics Groundwater flow concepts; Darcy’s Law in isotropic and anisotropic media and validity; water flow
rates, direction and water volume in aquifers; permeability and hydraulic conductivity and ranges in
representative rocks; Bernoulli equation; determination of hydraulic conductivity in field and
laboratory; concept of groundwater flow through dispersion and diffusion; transmissivity and aquifer
   Section C. Water wells and groundwater levels Unidirectional and radial flow to a well (steady and unsteady); well flow near aquifer boundaries;
methods for constructing shallow wells, drilling wells, well completion; testing wells, pumping test,
slug tests for confined and unconfined aquifers; fluctuations in groundwater levels; stream flow and
groundwater flows; groundwater level fluctuations; land subsidence; impact of global climate change
on groundwater.
   Section D. Groundwater exploration Surface investigation of groundwater- geologic, remote sensing, electrical resistivity, seismic, gravity
and magnetic methods; sub-surface investigation of groundwater- test drilling, resistivity logging,
spontaneous potential logging, radiation logging.
   Section E. Groundwater quality and management Groundwater composition, units of expression, mass-balance calculations; rock-water interaction
(chemical equilibrium, free energy, redox reactions and cation/anion exchanges), graphic
representation of chemical data; groundwater hardness, microorganisms in groundwater; water
quality standards; sea-water intrusion; groundwater issues due to urbanization; solid and liquid
waste disposal and plume migration models; application of isotopes (H, C, O) in groundwater;
concepts of artificial recharge methods; managing groundwater resources; groundwater basin
investigations and management practices

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You can emphasize a few things in Stage 2 that can help you crack the exam.

  1. Math needs to be practised well, especially trigonometry, algebra
  2. General Intelligence and Reasoning helps you to rank directly easily, so you should practice General Intelligence and Reasoning very well from now on so that no questions on this subject are wrong in the exam.
  3. The science subject is a little hard for the students of general background, but if your strategy is correct, there will be no problem. So in the case of science background students, the subject will be very easy. Because more questions come from 11th and 12th base.

UPSC combined geo-scientist Syllabus 2021:Exam Pattern

Stage-ICombined Geo-Scientist (Preliminary) Examination (Computer Based Objective
Type Papers) for the selection of candidates for the Stage-II:
400 Marks
Stage-IICombined Geo-Scientist (Main) Examination (Conventional Type Paper600 Marks
Stage-IIIPersonality Test/Interview200 Marks

UPSC combined geo-scientist Syllabus 2021:Important Links

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I have always tried to provide complete details about(UPSC combined geo-scientist Syllabus 2021 ) this that you do not have any problem during the form fillup. I am coming you have benefited from getting these details. you must have understood properly, you should practice for your exam in such a way that you do not have to go to the exam hall and get nervous. That’s all there is to it.

  1. Subjects have to be completed in a good way
  2. Completed subjects have to be practised on their own in a very good way.
  3. You have to do a group study after practising in a good way.
  4. 15 days before the exam, you have to give more than one mock test on the exam in which you are sitting.

Friends, if you can follow the above topics in a good way, you will surely succeed one day.

I fully believe that you have fully understood this. My only request to you that, If you have really benefited, share it with your friends so that they too can benefit.
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UPSC combined geo-scientist Syllabus 2021:Frequently Asked Questions


Q. What is the selection process of UPSC combined geo-scientist Recruitment 2021?

Stage I– Combined Geo-Scientist (Preliminary) Examination (Computer Based Objective
Type Papers) for the selection of candidates for the Stage-II:
Stage II-Combined Geo-Scientist (Main) Examination (Conventional Type Paper
Stage III-personality Test/Interview

Q. Which vacancies are included in UPSC combined geo-scientist?

Chemist Group A- 15,CGWB Scientist B Hydrogeology – 16,CGWB Scientist B Chemical – 03,CGWB Scientist B Geophysics – 06

Q. what is initial pay for UPSC combined geo-scientist post?

Initial pay for UPSC combined geo-scientist post is 70,866

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