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2000 Publications

Refereed Publications

FORD, R. G., AND D. L. SPARKS. 2000. THE NATURE OF ZN PRECIPITATES FORMED IN THE PRESENCE OF PYROPHYLLITE. ENVIRON. SCI. TECHNOL. 34:2479-2483.

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SCHECKEL, K. G., A. C. SCHEINOST, R. G. FORD, AND D. L. SPARKS. 2000. STABILITY OF LAYERED NI HYDROXIDE SURFACE PRECIPITATES-A DISSOLUTION KINETICS STUDY. GEOCHIM. COSMOCHIM. ACTA 64:2727-2735.

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SCHECKEL, K. G., AND D. L. SPARKS. 2000. KINETICS OF THE FORMATION AND DISSOLUTION OF NI PRECIPITATES IN A GIBBSITE/AMORPHOUS SILICA MIXTURE. J. COLLOID INTERF. SCI. 229:222-239.

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SCHEINOST, A. C., AND D. L. SPARKS. 2000. FORMATION OF LAYERED SINGLE- AND DOUBLE-METAL HYDROXIDE PRECIPITATES AT THE MINERAL/WATER INTERFACE: A MULTIPLE-SCATTERING XAFS ANALYSIS. J. COLLOID INTERF. SCI. 223:167-178.

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Sparks, D. L.. 2000. New frontiers in elucidating the kinetics and mechanisms of metal and oxyanion sorption at the soil mineral/water interface. J. Plant Nutri. Soil Sci. 163:563-570.

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Strawn, D. G. and D. L. Sparks. 2000. Effects of soil organic matter on the kinetics and mechanisms of Pb(II) sorption and desorption in the soil. Soil Sci. Soc. Am. J. 64:144-156.

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Other Publications

Pimental, D. and D.L. Sparks. 2000. Soil as an endanged ecosystem. BioScience 50:947.

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Scheidegger, A.M. 2000 .F. W. Clarke Award Acceptance Speech. GEOCHIM. COSMOCHIM. ACTA 64:765-766.

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Sparks, D. L. 2000. Soils. Geotimes 45: 39.

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Sparks, D. L.. 2000. Citation for presentation of the 1999 F. W. Clarke Award to Andre´ M. Scheidegger. GEOCHIM. COSMOCHIM. ACTA 64:763.

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Sparks, D. L.., A. M. Scheidegger, and G. M. Lamble. 2000. Precipitates suppress mobility of metals in soil and water. NRI Research Highlights, March 2000. USDA, Washington, D. C.

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Invited Presentations    
Sparks, D.L. 2000. Frontiers in elucidating metal sorption mechanisms at the soil mineral water/interface using molecular scale techniques. Keynote Lecture, "Surface Chemical Processes in Natural Environments Symposium", Monte Verita, Ascona, Switzerland, October 1-6. abstab10a1a  

Presentations

Arai, Y., and D.L. Sparks. 2000. Investigation of the residence time effect on phosphate (P) adsorption/desorption. Northeastern Branch of the American Society of Agronomy, Newark, Delaware, June 18-21. abstab10a1a  
Hunger, S., and D.L. Sparks. 2000. Reactions of phosphate at the gibbsiteO water interface: A molecular scale investigation. Northeastern Branch of the American Society of Agronomy, Newark, Delaware, June 18-21. abstab10a1a  
Peak, D., Y. Arai, L. Miller, J.T. Sims, D. Ware, and D.L. Sparks. 2000. Speciation of phosphorus in alumOamended poultry litter using XANES spectroscopy. Northeastern Branch of the American Society of Agronomy, Newark, Delaware, June 18-21. abstab10a1a  
Matocha, C.J. and D.L. Sparks. 2000. Role of trivalent Mn in oxidation of organic matter. 22oth ACS National Meeting, Washington, D.C., Aug. 20-24. abstab10a1a  
Roberts, D.R., A.C. Scheinost, G. Lamble, and D.L. Sparks. 2000. Microscale Zn speciation in a smelter contaminated soil using micro XAS and XRF techniques. International Workshop on Surface Chemical Processes in Natural Environments, Monte Verita, Ascona, Switzerland. Oct. 1-6. abstab10a1a  
Scheinost, A.C., R.G. Ford, K.G. Scheckel, N.Yamaguchi, and D.L. Sparks. 2000. The link between clay mineral weathering and the formation of Ni surface precipitates. International Workshop on Surface Chemical Processes in Natural Environments, MonteVerita, Ascona, Switzerland.Oct. 1-6. abstab10a1a  

Arai, Y., J. Dyer and D.L. Sparks. Arsenic speciation in contaminated sites using microfocused X-ray absorption spectroscopy. SSSA Annual Meeting Abstracts, Nov 5-9, 2000, Minneapolis, MN. p.232.

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Gillot, F. and D.L. Sparks. Kinetics and speciation of Ni sorption on beidelite. SSSA Annual Meeting Abstracts, Nov 5-9, 2000, Minneapolis, MN. p.221.

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Hunger, S. and D.L. Sparks. Reactions of phosphate at the gibbsite-water interface: A molecular scale study. SSSA Annual Meeting Abstracts, Nov 5-9, 2000, Minneapolis, MN. p.222.

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Matocha, C. and D.L. Sparks. Reactivity of lead on solid Mn minerals. SSSA Annual Meeting Abstracts, Nov 5-9, 2000, Minneapolis, MN. p.231.

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Nachtegaal, M. and D.L. Sparks. Nickel sequestration in a mixed kaolinite-humic acid system. SSSA Annual Meeting Abstracts, Nov 5-9, 2000, Minneapolis, MN. p.232.

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Peak, J. D. and D.L. Sparks. Effect of reaction conditions on boron sorption on iron hydroxides. SSSA Annual Meeting Abstracts, Nov 5-9, 2000, Minneapolis, MN. p.240.

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Roberts, D. R. and D.L. Sparks. The direct identification and stability of Zn species in contaminated soils. SSSA Annual Meeting Abstracts, Nov 5-9, 2000, Minneapolis, MN. p.232.

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