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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. |
| | 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. |
| | 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. | | | 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. | | |
| Invited Presentations |
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| 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. |
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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. |
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| 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. |
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| 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. |
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| 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. |
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| 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. |
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| 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. |
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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. |
| | 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. |
| | 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. |
| | 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. |
| | 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. |
| | 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. |
| | 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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