Thursday, 19 January 2012

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GEOLOGY SYLLABUS POST OF FOREST RANGE OFFICERS

GEOLOGY SYLLABUS

Part - I

a) General  Geology: Solar  System.    The  Earth:  its  origin,  age  and  internal  constitution. 
Volcanoes types,  distribution  geological  effects  and  products.  Earth quakes intensity,
magnitude, distribution, causes and effects.  Elementary ideas about isostasy, geosynclines,
mountain building, continental drift, sea floor spreading and plate tectonics.

b) Geomorphology: Basic concepts. External and internal processes. Rock weathering. Cycle
of  erosion.  Fluvial  landforms  and  drainage  patterns.  Landforms  of  Aeolian,  marine,  glacial
and ‘Karst’ landscapes. Elements of Remote Sensing.

c)  Structural and field Geology: Primary  and  secondary  structures.  Dip  and  strike  of  beds.
Unconformities. Study of folds, joints, faults, foliation and lineations. Overthrusts and nappe
structures. Stages of rock deformation. Construction of block diagrams, Stereographic and
equal area nets. Solutions of simple problems by stereographic net. Topographic maps and
their interpretation. Use of clinometer compass in the field Measurements of bed, foliation,
folds  joints,  faults  and  lineations  in  the  field.  Principles  of  geological  mapping.  Effects  of
topography on outcrops. Drawing of sections.

Part – II

a) Crystallography: Elements  of  crystal  structure.  Laws  of  crystallography,  Symmetry
elements of normal classes of seven crystal systems. Properties and interaction of light and
crystalline matter. Petrological microscope and accessories. Construction and use of Nicole
prism.  Pleochroism,  double  refraction,  extinction  angle,  birefringence  and  twinning  in
crystals, Isotropic, uniaxial and biaxial minerals.

b) Mineralogy: Physical, chemical and optical properties of the following common rock forming
minerals: quartz, feldspar, mica, pyroxene, amphibole, olivine, garnet, chlorite, carbonates,
aluminosilicates.  Structure of silicates and crystal chemistry of minerals. Gemstones.

c)  Economic Geology: Ore, ore mineral and gangue. Classification of ore deposits. Important
processes  of  their  formation.  Occurrence,  origin  and  distribution  in  India  of  the  ores  of
aluminium, chromium, copper, gold, lead, zinc, iron, manganese and radioactive elements.
Deposits  of  minerals  use  as  abrasives,  refractories  and  in  ceramics,  deposits  of  coal  and
petroleum. Elements of prospective of mineral deposits.

Part – III

a)  Igneous Petrology:  Origin  of  magma  and formation  of  igneous rocks.   Bowen’s  reaction
principle.    Crystallisation  of  binary  systems.  Classification  of  igneous  rocks.  Textures  and
structures of igneous rocks. Composition, origin and mode of occurrence of granite, syenite
diorite, mafic and ultramafic groups, anorthosites and alkaline rocks.

b)  Sedimentary Petrology:  Sedimentary process and products. Classification of sedimentary
rocks.  Sedimentary structures.  Residual deposits – their mode of formation, chacteristics
and  types,  Clastic  deposits  –  their  classification,  mineral  composition  and  texture.
Elementary  ideas  about  the  origin  and  characteristics  of  quartz  arenites,  arkoses  and
greywackes.  Siliceous and calcareous deposits of chemical and organic origin.

c)  Metamorphic Petrology:  Types and factors of metamorphism. Zones, grades and facies of
metamorphism.  Regional  and  contact  metamorphism.  Textures  and  structures  of
metamorphic  rocks.  Metamorphism  of  argillaceous,  arenaceous,  calcareous  and  basic
rocks. Metasomatism.

Part – IV

a)  Paleontology:   Habits  and  habitats  of  animals.  Fossils  and  fossilization.  Modes  of
preservation.  Application  of  fossils,  Study  of    morphology  and  geological  history  of
Foraminiferida, Brachipoda, Bivalvia, Gastropoda, Cephalopoda, Trilobita, Echinoidea and
Anthozoa.  Mammals of Siwalik Group. A brief study of Gondwana flora.

b)  Stratigraphy  and  Geology  of  India:   Fundamental  laws  of  stratigraphy.  Stratigraphic
classification  lithostratigraphic,  biostratigraphic  and  chronostratigraphic.  Geological  time
scale.  Physiographic divisions and outline of stratigraphy of India. Brief study of Dharwar,
Vindhyan  and  Gondwana  Supergroups  and  Siwalik  Group  with  reference  to  their  major
subdivisions, lithology, fossils, aerial distribution and economic importance.







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