Session No. 44 Monday, November 5, 2001

1:30 PM-5:30 PM, Hynes Convention Center: 309
T48. Application of Geochemistry to Understanding Groundwater–Surface Water Interactions
James M. Thomas, Timothy P. Rose, Kevin H. Johannesson and Alan E. Fryar, Presiding
 Paper #Start Time
44-01:30 PM Paper Withdrawn
44-01:45 PM IMPROVED UNDERSTANDING OF POND-AQUIFER INTERACTION ON THE BASIS OF STABLE ISOTOPES OF WATER: FRIESZ, Paul J., U.S. Geological Survey, 10 Bearfoot Road, Northborough, MA 01532, pfriesz@usgs.gov.
44-02:00 PM CONTROLS ON SURFACE WATER CHEMISTRY OF THE LAKE WACO DRAINAGE BASIN, WACO, TX: NICHOLAS, James Brian and DWORKIN, S. I., Geology, Baylor Univ, Department of Geology, PO Box 97354, Waco, TX 70798-7354, James_Nicholas@baylor.edu
44-02:15 PM THE INFLUENCE OF IRRIGATION INFILTRATION ON THE EVOLUTION OF GROUNDWATER CHEMISTRY NEAR FERNLEY, NEVADA: RALSTON, Jill1, THOMAS, James1, BOHM, Burkhard2, and MCKAY, W. Alan1, (1) Department of Hydrologic Sciences, Desert Rsch Institute, Reno, NV, jralston@dri.edu, (2) Plumas Geo-Hydrology, Portola, CA
44-02:30 PM STREAM/AQUIFER INTERACTIONS IN GREAT SAND DUNES NATIONAL MONUMENT, COLORADO: INFLUENCE ON INTERDUNAL WETLAND DISAPPEARANCE: SANFORD, William E., WURSTER, Frederic C., and COOPER, David J., Colorado State Univ, Dept Earth Resources, Fort Collins, CO 80523-1482, bills@cnr.colostate.edu
44-02:45 PM USING NOBLE GAS ISOTOPES TO CONSTRAIN A 3-D FINITE ELEMENT MODEL OF GROUNDWATER FLOW IN MOUNTAINOUS TERRAIN: MANNING, Andrew H. and SOLOMON, D. Kip, Department of Geology and Geophysics, Univ of Utah, Salt Lake City, UT 84112, amanning@mines.utah.edu
44-03:00 PM ISOTOPE PROFILES FROM THREE DEEP WESTERN U.S. CAVES: INSIGHTS INTO ARID-REGION VADOSE-ZONE PROCESSES: TURIN, H. J., Los Alamos National Lab, Mailstop J534, Los Alamos, NM 87545, turin@lanl.gov and PLUMMER, M. A., Earth and Environmental Science Department, New Mexico Tech, Socorro, NM 87801
 3:15 PM Break
44-03:30 PM TRACKING AGRICHEMICAL TRANSPORT TO SURFACE WATER/GROUNDWATER WITH ISOTOPIC AND CHEMICAL PARAMETERS: UNTERREINER, Gerald A. and KEHEW, Alan E., Geosciences, Western Michigan Univ, Kalamazoo, MI 49008, gerald.unterreiner@wmich.edu
44-03:45 PM APPLICATION OF NITROGEN AND OXYGEN ISOTOPES TO IDENTIFY DENITRIFICATION IN A SHALLOW AQUIFER WITH A VARIABLE INFLUX OF NITRATE: ROADCAP, George, Illinois State Water Survey - Univ of Illinois, 2204 S Griffith DR, Champaign, IL 61820, roadcap@uiuc.edu, HACKLEY, Keith, Illinois State Geol Survey, 645 E Peabody, Champaign, IL 61820, HWANG, Hue-Hwa, Illinois State Geol Survey, 615 E. Peabody Dr, Champaign, IL 61820, hwang@isgs.uiuc.edu, and JOHNSON, Thomas M., Environmental Isotope Geochemistry/Hydrogeology, Univ of Illinois Urbana/Champaign, 245 Natural History Building, mc 102, 1301 W Green, urbana, IL 61801
44-04:00 PM TECHNETIUM-99 AS AN IN-SITU TRACER OF GROUND-WATER/STREAM INTERACTIONS AND ORGANIC CO-CONTAMINANT FATE: FRYAR, Alan E. and LASAGE, Danita M., Dept. of Geological Sciences, Univ of Kentucky, 101 Slone Bldg, Lexington, KY 40506-0053, afryar1@pop.uky.edu
44-04:15 PM ISOTOPE TRACKING OF FLUID INFILTRATION THROUGH THE VADOSE ZONE AT HANFORD, WASHINGTON: WOODS, Katharine N.1, CONRAD, Mark E.1, and DEPAOLO, Donald J.2, (1) Lawrence Berkeley National Lab, 1 Cyclotron Rd Bldg 70-A, Berkeley, CA 94720-0001, knwoods@lbl.gov, (2) Earth and Planetary Science, Univ of California, Center for Isotope Geochemistry, 307 McCone Hall, Berkeley, CA 94720-4767
44-04:30 PM STABLE ISOTOPE VARIATIONS OF HEXAVALENT CHROMIUM IN GROUNDWATERS OF THE MOJAVE DESERT, CALIFORNIA, USA: BALL, James W., Water Resources Division, U.S. Geol Survey, 3215 Marine Street, Suite E-127, Boulder, CO 80303-1066, jwball@usgs.gov, BULLEN, Thomas D., Water Resources Division, U.S. Geol Survey, 345 Middlefield Road, Menlo Park, CA 94025, IZBICKI, John A., Water Resources Division, U.S. Geol Survey, 573 S. Kearny Villa Road, San Diego, CA 92123, and JOHNSON, Thomas M., Environmental Isotope Geochemistry/Hydrogeology, Univ of Illinois Urbana/Champaign, 245 Natural History Building, mc 102, 1301 W Green, urbana, IL 61801
44-04:45 PM STRONTIUM ISOTOPES AS INDICATORS OF REGIONAL VARIATION IN GROUNDWATER SYSTEMS IN AN AREA OF COALBED METHANE PRODUCTION, POWDER RIVER BASIN, WYOMING: PEARSON, Benjamin N., FROST, Carol D., and VIERGETS, Jami E., Department of Geology and Geophysics, Univ of Wyoming, Dept. of Geology and Geophysics, Box 3006, Laramie, WY 82071-3006, bpearson@uwyo.edu
44-05:00 PM Paper Withdrawn
44-05:15 PM RARE EARTH ELEMENT GEOCHEMISTRY OF SADAT CITY (EGYPT) GROUNDWATERS: HANNIGAN, Robyn E.1, NASSEF, Mohamed H.2, EL TAHAWY, Morsy2, and ELSAYED, Khaled Abdelsabour3, (1) Dept. of Chemistry and Program for Environmental Sciences, Arkansas State Univ, PO Box 419, State University, AR 72467, hannigan@astate.edu, (2) National center for Nuclear Safety and Radiation Control, Cairo, Egypt, (3) Old Dominion Univ, Norfolk, VA 23529

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