GES166/266, Soil Chemistry

Welcome to the course homepage

Meeting times: 

    9 - 10:15 T, Th  

    2:00 - 3:30  Th

Location: A25 Mitchell

Instructor: Scott Fendorf

Office Hours (in 301 Green):

phone: 723-5238

email: fendorf@pangea

TAs: Ben Kocar


Office: 327 Green

  phone: 723-4152

  email: kocar@pangea



COURSE SYLLABUS (with schedule and reading assignments)



 March 4th:  Lecture and discussion on mercury and arsenic cycling.

March 4th:  Lecture homework 3  (redox limits) is due.

*NOTE:  We will meet in A25 Mitchell at 2 pm this Thursday.




Lecture 1, Soil Solids: Clay minerals

Lecture 2, Soil Solution (WORD FORMAT)

Lecture 3, Solid-Water Interface

Lecture 4, Oxidation-Reduction


Lecture Material 1, Introduction

Lecture Material 2,  Soil Solids*

Lecture Material 3,  Soil Solutions

Lecture Material 4,  Solid-Water Interface*

Surface Complexation Modeling:  Zn Transport (Eve's lecture)



Carbonate Chemistry Figures:

Case 1: Closed system no solid

Case 2: Closed system with solid phase

Case 3: Open system no solid

Case 4: Open system with solid phase

LECTURE ASSIGNMENTS (class homework)

Exercise 1:  Carbonate and chemical speciation

Exercise 2:  Carbonate speciation with Minteq

Exercise 3:  Redox limits in soils and waters



For January 15:

Harvey, C.F., et al. 2002. Arsenic mobility and groundwater   extraction in Bangladesh.  Science.  298: 1602-1606.

      Discussion Questions for January 15th 

For January 22:

Nordstrom, D.K., and C. N. Alpers.  2000.  Negative pH, efflorescent mineralogy, and consequences for environmental restoration at the Iron Mountain Superfund site, California. Proc. Natl. Acad. Sci. 96: 34553462.

Discussion Questions for January 22nd

For January 29:

McKinley et al., 2001.  Distribution and retention of Cs-137 in sediments at the Hanford Site, Washington.  Environ. Sci. Technol.  35: 3433-3441.

Discussion Questions for January 29th

For February 5:  

Kent, D.B., R.H. Abrams, J.A. Davis, J.A. Coston, and D.R. LeBlanc. 2000. Modeling the variable pH on the transport of zinc in a contaminated aquifer using semiempirical surface complexation models. Water Res. Res.  36: 2411-3425.

(hard copy only)

Discussion Questions for February 5th

For February 12:  

Steefel, C.I., and P. Van Cappellen. 1990.  A new kinetic approach to modeling water-rock interaction:  The role of nucleation, precursors, and Ostwald ripening.  Geochim. Cosmochim. Acta  54: 2657-2677. (Ben)

(hard copy only)

Discussion Questions for February 12th

For February 19:  

1.  Sagemann, J., S.J. Bale, D.E.G. Briggs, and R.J. Parkes. 1999. Controls on the formation of authogenic minerals in associaiton with decaying organic matter: An experimental approach. Geochim. Cosmochim. Acta  63: 1083-1096.   (Claire)

(hard copy only)

2. Ford, R.G., A.C. Scheinost, K.G. Scheckel, and D.L. Sparks. 1999. The link between clay mineral weathering and the stabilization of Ni surface precipitates. Environ. Sci. Technol. 33: 3140-3144. (Jeanne T.)

Discussion Questions for February 19th

For February 26:

1. Van Cappellen, P., E. Viollier, A. Roychoudhury, L. Clark, E. Ingall, K. Lowe, and T. Dichristina. 1998. Biogeochemical cycles of manganese and iron at the oxic-anoxic transition of a stratified marine basin (Orca Basin, Gulf of Mexico). Environ. Sci. Technol. 32: 2931-2939.  (Toby)

2.  Haas, JR; Dichristina, TJ. 2002. Effects of Fe(III) chemical speciation on dissimilatory Fe(III) reduction by Shewanella putrefaciens. Environ. Sci. Technol. 36: 373-380 (Aaron)

Discussion Questions for February 26th

For March 4:

1. Benoit, J.M., C.C. Gilmour, R.P. Mason, and A. Heyes. 1999. Sulfide controls on mercury speciation and bioavailability to methylating bacteria in sediment pore waters.  Environ. Sci. Technol. 33: 951-957.  (Hefa)

2. Senn, D. B., and H. F. Hammond (2002). Nitrate controls on iron and arsenic in an urban lake. Science 296: 2373-2376. (Matt)

Discussion Questions for March 4th

For March 11:

1. Istok, J. D., Senko, J.M., Krumholz, L. R., Watson, D., Bogle, M. A., Peacock, A., Y.-J. Chang, and White, D.C (2004). In situ bioreduction of technetium and uranium in a nitrate-contaminated aquifer. Environ. Sci. Technol. 38: 468-475. (John)

2. Lovley, D.R., and R. T. Anderson. 2000.  Influence of dissimilatory metal reduction on fate of organic and metal contaminants in the subsurface.  Hydrogeol. J. 8: 77-88. (Juyoung)

Discussion Questions for March 11th









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