Syllabus
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Course Code: G-401 Course Name: Geochemistry |
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| MODULE NO / UNIT | COURSE SYLLABUS CONTENTS OF MODULE | NOTES |
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| 1 | Objective and history of geochemistry, chemical composition and characteristics of atmosphere, lithosphere and hydrosphere, geochemical cycles, meteorites - types and composition, Goldschmidt’s classification of elements, application of thermodynamics in Geology. | |
| 2 | Principles of ionic substitution in minerals, concept of distribution coefficient and its uses in geochemical modeling, Nernst’s partition coefficient (compatible and incompatible elements), physico-chemical factors in sedimentation. Applications of trace elements in Geology and REE patterns. | |
| 3 | Geochemistry of uranium, thorium, rubidium and strontium. Principles and application of Rb-Sr, K-Ar, U-Pb and Sm-Nd methods of dating. Principle methodology and application of fission track dating method. Cosmo-genic radionuclides, production of 10Be and 26Al in the atmosphere, and their application in dating sediments. | |
| 4 | Significance of stable isotope geochemistry in Geology, isotope fractionation in nature. Stable isotopes of oxygen, carbon and hydrogen and their determination. Delta 18O/16O in marine planktonic foraminifera as paleo-temperature indicator, other factors governing its variations. Pleistocene glacial and de-glacial cycles and delta 18O event stratigraphy. 13C/12C ratios in marine planktons and organic matter. Delta 13C characterization of ocean-water masses, factors affecting variations of carbon isotope ratios. Significance of delta D and delta 18O in hydrological studies - relative age determination of groundwater reservoirs, effect of mixing and evaporation. |
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