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SSC 102 WINTER QUARTER 2002 |
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| Date | Topic | Readings | |
| WEEK 1 | SOIL A THREE PHASE SYSTEM | COURSE NOTES Section 1 | |
| Jan. 4 | Introduction - Organization of discussion and laboratory | ||
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WEEK 2 |
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THE SOLID PHASE - SURFACES IN SOIL AND THEIR REACTIVITY |
COURSE NOTES Section 2; SPARKS - Chapter 2. Pages 134- 136. |
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Jan. 7 |
Silicate and oxide minerals in soils - the dominance of oxygen, geometric relations of Si and Al to oxygen (radius ratios), major groups or primary minerals. |
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Jan. 9 |
Primary minerals and silicate mineral - Structure and nomenclature. |
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Jan. 11 |
Soil minerals continued. |
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WEEK 3 |
Jan. 14 |
Structural and charge relations in the clay minerals functional groups on soil organic, charge in organics and minerals, point of zero charge. |
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THE SOLUTION PHASE |
COURSE NOTES Section 3; SPARKS- Chapter 4 |
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Jan. 16 |
Electrolytes, electrolyte activity, ionic strength and activity coefficients |
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Jan. 18 |
Solution complexes, stability diagrams, and iterative computer calculations of solubility and complexes |
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WEEK 4 |
Jan. 21 |
Martin Luther King Day – Holiday |
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INTERACTION BETWEEN SOLID AND SOLUTION PHASE- GENERAL SOLUBILITY RELATIONSHIPS |
COURSE NOTES Section 4; SPARKS- Chapter 3 skim, read pages 67-68 & 92-97. |
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Jan. 23 |
General solubility relations - Sodium chloride and IAP |
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Jan. 25 |
Mineral solubility and stability diagrams |
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CARBONATE EQUILIBRIA & SOLUBILITY |
COURSE NOTES |
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WEEK 5 |
Jan. 28 |
Carbonates in soil systems - The CO2–air system. Computer solution of the CO2-air problem comparison with graphical methods. |
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Jan. 30 |
Calcite and water, carbonates in relation to PCO2, controls on soil Ca and pH. |
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Feb. 1 |
Examination # 1 |
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WEEK 6 |
Feb. 4 |
Computer solutions to the CO2 - Ca - H2O system. |
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Feb. 6 |
Computer solutions continued |
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Feb. 8 |
Carbonate summary. |
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CATION EXCHANGE REACTIONS IN COLLOIDAL SYSTEMS |
COURSE NOTES |
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WEEK 7 |
Feb. 11 |
Cation retention - exchange reactions. Selectivities and exchange sites. |
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Feb. 13 |
Dynamic exchange by cartoon strip. |
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Feb. 15 |
Electrical double layers around soil colloids. Gouy-Chapman Theory and the solid solution interface. Dispersion and aggregation in colloidal systems. |
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WEEK 8 |
Feb. 18 |
President’s Day - ACADEMIC AND ADMINISTRATIVE HOLIDAY |
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ADSORPTION |
COURSE NOTES Section 7; SPARKS- Chapter 5 |
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Feb. 20 |
Adsorption and adsorption isotherms. |
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Feb. 22 |
Adsorption - Modifications to double layer and adsorption models. |
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WEEK 8 |
Feb. 25 |
Adsorption continued |
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SOIL BUFFERING AND SOIL pH |
COURSE NOTES Section 8; SPARKS- Chapter 9, 10 |
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Feb. 27 |
Desiccation - A unique feature of soil solutions in acidic and alkaline soils. Soil reaction - A balance between acid and alkaline sources. |
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Mar. 1 |
Short term and long term considerations of soil pH changes. |
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WEEK 9 |
Mar. 4 |
Soil buffering index - Beta ( ) - Strong and weak acids revisited. Soil reactions affecting buffering. |
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ACID AND ALKALINE SOILS |
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Mar. 6 |
Chemistry of acidic soils – solubility and availability relationships, acid mine drainage |
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Mar. 8 |
Chemistry of alkaline soils – solubility of sulfates, carbonates, and halides, flocculation and dispersion. Reclamation of saline and alkali soils. |
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REDOX REACTIONS IN SOIL SYSTEMS |
COURSE NOTES Section 9; SPARKS- Chapter 8. |
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WEEK 10 |
Mar. 11 |
Thermochemistry background and redox reactions, water stability as the bounds on redox reactions in soils. |
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Mar. 13 |
Examination # 2 |
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Mar. 15 |
Examples of redox in soil systems. Last Day of Instruction |
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FINAL |
Mar. 19 |
1120 Bainer Hall Exam Group E. |
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