Geology 482: Low T Aqueous
Geochemistry
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Lecture* |
Topic |
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1 |
Introduction: What is
geochemistry - Different fields and applications.
Basic chemical principles. Basics of calculus. The Hydrologic cycle: types of
water. General Controls on Natural Water Chemistry. |
|
2 |
Element association &
distribution; Mineral and Crystal Chemistry:
Ionization Potential, Electron affinity; Valence, Bonding, Oxidation state;
Periodic Table; Distribution & Assciation of
elements; Coordination numbers, Controls of crystal structures; Isomorphism,
Goldschmidt’s rules for substitution; Camouflage, Capture & Admission |
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3 - 8 |
Chemical equilibrium, The
Phase rule, Phase diagrams, Reversible and irreversible chemical reactions,
Balancing reactions, Law of Mass Action, Le Chatelier’s
principle, Solubility products, Common ion effect,
Activity, Fugacity |
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9 - 12 |
Introduction to thermodynamics: 1st, 2nd, and 3rd laws;
Gibbs Free Energy, Enthalpy, Entropy, Heat capacity, thermal expansion,
compressibility. Some key relations. Applications. |
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13 - 17 |
Water Chemistry:
Properties of water; Acids & bases; pH, Dissociation constants, Ionic
concentrations, Buffers, pH-pC diagrams. |
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18 - 21 |
Solution – Mineral equilibria: carbonates; silicates; Chemistry of groundwater;
chemistry of seawater, Analysis of water samples, Mixing, Dilution, Evaporation. |
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22 - 23 |
Kinetics:
Diffusion; Nucleation; Growth |
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23, 24 |
Oxidation and Reduction; Eh – pH
diagrams |
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25 |
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26 - 29 |
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30 - 31 |
Acid Mine Drainage: |