: Geologist Examination
Section A :
Geomorphology and Remote Sensing.
and soils, Mass wasting. Influence of climate on processes. Concept of erosion
cycles. Geomorphology of fluvial tracts, arid zones, coastal regions, â€˜Karst'
landscapes and glaciated ranges. Geomorphic mapping, slope analysis and drainage
basin analysis. Applications of geomorphology in mineral prospecting, civil
engineering , hydrology and environmental studies. Topographical maps.
Geomorphology of India.
Concepts and principles of aerial photography and photogrammetry, satellite
remote sensing — data products and their interpretation. Digital image
processing. Remote sensing in landform and land use mapping, structural mapping,
hydrogeological studies and mineral exploration. Global and Indian Space
Missions. Geographic Information System (GIS) principles and applications.
Section B : Structural
Principles of geological mapping and map reading , projection diagrams.
Stress-strain relationships of elastic, plastic and viscous materials.
Measurement of strain in deformed rocks. Behaviour of minerals and rocks under
deformation conditions. Structural analysis of folds, cleavages, lineations,
joints and faults. Superposed deformation. Mechanism of folding and faulting.
Time-relationship between crystallization and deformation. Unconformities and
basement-cover relations. Structural behaviour of igneous rocks, diapirs and
salt domes. Introduction to petrofabrics.
Section C :
Earth and the solar system, Meteorites and other extra-terrestrial materials,
Planetary evolution of the earth and its internal structure. Heterogeneity of
the earth's crust. Major tectonic features of the Oceanic and Continental crust.
Continental drift â€” geological and geophysical evidence, mechanics,
objections, present status. Gravity and magnetic anomalies at Mid-ocean ridges,
deep sea trenches, continental shield areas and mountain chains.
Palaeomagnetism. Seafloor spreading and Plate Tectonics. Island arcs, Oceanic
islands and volcanic arcs. Isostasy, orogeny and epeirogeny. Seismic belts of
the earth. Seismicity and plate movements. Geodynamics of the Indian plate.
Section D :
Nomenclature and the modern stratigraphic code. Radioisotopes and measuring
geological time. Geological time-scale. Stratigraphic procedures of correlation
of unfossiliferous rocks. Precambrian stratigraphy of India. Stratigraphy of the
Palaeozoic, Mesozoic and Cenozoic formations of India. Gondwana system and
Gondwanaland. Rise of the Himalaya and evolution of Siwalik basin. Deccan
Volcanics. Quaternary Stratigraphy. Rock record, palaeoclimates and
Section E :
Fossil record and geological time-scale. Morphology and time-ranges of fossil
groups. Evolutionary changes in molluscs and mammals in geological time.
Principles of evolution. Use of species and genera of foraminifera and
echinodermata in biostratigraphic correlation. Siwalik vertebrate fauna and
Gondwana flora, evidence of life in Precambrian times, different microfossil
groups and their distribution in India.