2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM

Session No. 347
Thursday, 9 October 2008: 8:00 AM-12:00 PM

T124. Roles of Speciation and Molecular Structure in Soil Processes

Gulf Coast Association of Geological Societies


Owen Duckworth and Alan T. Stone, Advocates
Paper #
Start Time
8:00 AM
Molecular Modeling of Surface Complexes
KUBICKI, James D., Dept. of Geosciences, The Pennsylvania State University, 335 Deike Bldg, University Park, PA 16802-2712, kubicki@geosc.psu.edu, kubicki@geosc.psu.edu
8:15 AM
Redox Chemistry and Transformation of Arsenic and Selenium in Agricultural Drainage Disposal Ponds
GAO, Suduan, San Joaquin Valley Agricultural Sciences Center, USDA-ARS, 9611 S. Riverbend Ave, Water Management Research Unit, PArlier, CA 93648 and RYU, Ji-hun, Hydrologic Science, Desert Research Institute, 2215 Raggio Pkwy, Reno, NV 89512-1095, Suduan.Gao@ars.usda.gov, Suduan.Gao@ars.usda.gov
8:30 AM
Mechanisms of Uranium Reduction In the Subsurface
DENG, Baolin and HUA, Bin, Department of Civil and Environmental Engineering, University of Missouri-Columbia, Columbia, MO 65211, dengb@missouri.edu, dengb@missouri.edu
8:45 AM
Fe Crust In Spodosols. A Chemical Barrier towards Many Groundwater Contaminants
CHARLET, Laurent, Earth and Planetary Science Department (LGIT-OSUG), Universite Joseph Fourier, BP 53, 38041 Grenoble, Grenoble, 38041, France, laurent.charlet@ujf-grenoble.fr, laurent.charlet@ujf-grenoble.fr
9:05 AM
Reactions of Organic Acids at the Water-Mineral Interface: Competitive Adsorption and Dissolution Reactions at a Molecular Level
PERSSON, Per, LINDEGREN, Malin and LORING, John S., Department of Chemistry, Umea University, Linnaeus v. 6, Umea, SE-90187, Sweden, Per.Persson@chem.umu.se, Per.Persson@chem.umu.se
9:25 AM
Chelating Agent Structure-Reactivity Relationships Pertaining to Metal Ion Uptake by Grasses
STONE, Alan T.1, BOLAND, Nathan E.1 and CHANEY, Rufus L.2, (1)Department Geography and Environmental Engineering, Johns Hopkins University, G.W.C. Whiting School of Engineering, 313 Ames Hall, 3400 North Charles Street, Baltimore, MD 21218, (2)Environmental Management & By-Products Utilization Laboratory, USDA-Agricultural Research Service, Building 007, BARC-West, Beltsville, MD 20705, astone@jhu.edu, astone@jhu.edu
9:40 AM
Sorption of Iron from Siderophore Complexes by Mn Oxides
DUCKWORTH, Owen, Soil Science, NCSU, 101 Derieux St, Raleigh, NC 27695, BARGAR, John R., Stanford Synchrotron Radiation Lightsource, 2575 Sand Hill Rd, Menlo Park, CA 94025 and SPOSITO, Garrison, Geochemistry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road Mail Stop 90-1116, Berkeley, CA 94720-3114, owen_duckworth@ncsu.edu, owen_duckworth@ncsu.edu
9:55 AM
Dissolved Organic Carbon in High Arctic Soil Water: The Influence of Periglacial Features and Ecology on Chemical Structure
KENNELL, Thomas J., Department of Earth and Space Sciences, University of Washington, Box 351310, Seattle, WA 98195-1310, SLETTEN, Ronald S., Quaternary Research Center, Univ of Washington, 19 Johnson Hall, University of Washington Box 351360, Seattle, WA 98195 and HAGEDORN, Birgit, Applied Science and Technology Laboratory, University of Alaska Anchorage, 3211 Providence Drive, Anchorage, AK 99508, tjk4@u.washington.edu, tjk4@u.washington.edu
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