2004 Denver Annual Meeting (November 7–10, 2004)
Session No. 202 Wednesday, November 10, 2004
8:00 AM-12:00 PM, Colorado Convention Center: 201

T20. Dissolved Gases as Indicators of Geochemical and Hydrogeologic Processes

D. Kip Solomon and Stephen J. Van der Hoven, Presiding
 Paper #Start Time
202-18:00 AM APPLICATIONS OF DISSOLVED N2 AND AR IN GROUND WATER: PLUMMER, L. Niel, BUSENBERG, Eurybiades, and WIDMAN, Peggy K., US Geological Survey, 432 National Ctr, Reston, VA 20192, nplummer@usgs.gov
202-28:20 AM EXCESS AIR IN GROUNDWATER: PROBLEMS AND OPPORTUNITIES: AESCHBACH-HERTIG, Werner, Institute of Environmental Physics, Univ of Heidelberg, Im Neuenheimer Feld 229, Heidelberg 69120 Germany, aeschbach@iup.uni-heidelberg.de.
202-38:40 AM DISSOLVED-GAS RECHARGE TEMPERATURES FOR EVALUATING PALEO-WATER-TABLE RISES AND CLIMATE CHANGE: HEILWEIL, Victor M., Water Resources Division - Utah District, United States Geol Survey, 2329 Orton Circle, Salt Lake City, UT 84119, heilweil@usgs.gov and SOLOMON, D. Kip, Department of Geology & Geophysics, Univ of Utah, 135 S. 1460 E., Room 719, Salt Lake City, UT 84112
202-48:55 AM DENITRIFICATION AND PALEORECHARGE CONDITIONS IN A REGIONAL UNCONFINED AQUIFER SYSTEM: MCMAHON, Peter B., U.S. Geol Survey, Denver Federal Center, P.O. Box 25046, MS-415, Denver, CO 80225, pmcmahon@usgs.gov, BÖHLKE, J.K., U.S. Geol Survey, 431 National Center, Reston, VA 20192, and CHRISTENSON, Scott C., U.S. Geol Survey, 202 N.W. 66th Street, Bldg. 7, Oklahoma City, OK 73116
202-59:10 AM CHEMICAL AND ISOTOPIC EVOLUTION OF THE DRY VALLEY LAKES: TIMING OF LATE HOLOCENE CLIMATE CHANGE IN ANTARCTICA: POREDA, Robert J., Earth and Env. Sci, Univ Rochester, Rochester, NY 14627-9000, poreda@earth.rochester.edu, DOWLING, Carolyn B., Byrd Polar Research Center, The Ohio State Univ, Columbus, OH 43210-1002, and LYONS, W. Berry, Byrd Polar Research Center, The Ohio State Univ, Columbus, OH 43210-1002
202-69:30 AM MANTLE CONTRIBUTIONS TO GROUNDWATER IN THE OREGON CASCADES AND EASTERN OREGON INFERRED FROM HELIUM ISOTOPES: SAAR, Martin O., Department of Geological Sciences, Univ of Michigan, 2534 C. C. Little, 425 E. University Ave, Ann Arbor, MI 48109-1063, msaar@umich.edu, CASTRO, Maria Clara, Geological Sciences, Univ of Michigan, 2534 C.C. Little Building, 425 E. University Ave, Ann Arbor, MI 48109, HALL, Chris M., Geological Sciences, Univ of Michigan, 4534 CC Little Building, Ann Arbor, MI 48109-1063, MANGA, Michael, Earth and Planetary Science, Univ of California, 307 McCone, Berkeley, CA 94720-4767, and ROSE, Timothy P., Chemical Biology and Nuclear Science Division, Lawrence Livermore National Lab, Livermore, CA 94550
202-79:45 AM DISSOLVED NOBLE GASES REVEAL THREE-DIMENSIONAL FLOW PATTERNS OF VERY OLD GROUNDWATER IN SEDIMENTARY BASINS: BETHKE, Craig M. and BERGER, Peter M., Department of Geology, Univ of Illinois, 1301 W Green Street, Urbana, IL 61801, bethke@uiuc.edu
 10:05 AM Break
202-810:15 AM RADIOGENIC 4HE AS A TRACER FOR YOUNG (102-104 YEARS) GROUNDWATER IN BURIED-VALLEY AQUIFERS: VAN DER HOVEN, Stephen J., Department of Geography-Geology, Illinois State Univ, Normal, IL 61790, sjvande2@ilstu.edu.
202-910:30 AM DISSOLVED NOBLE GASES AND EXCESS AIR IN CALIFORNIA GROUNDWATERS: CEY, Bradley D., Jackson School of Geosciences, Univ of Texas at Austin, 1 University Station C1100, Austin, TX 78712-0254, bdc@mail.utexas.edu, HUDSON, G. Bryant, Lawrence Livermore National Lab, Livermore, CA 94550, MORAN, Jean E., Lawrence Livermore National Lab, L-231, P.O. Box 808, Livermore, CA 94550, and SCANLON, Bridget R., Bureau of Economic Geology, Univ. of Texas at Austin, 10100 Burnet Rd, Bldg. 130, Austin, TX 78758
202-1010:45 AM INVESTIGATION OF THE EFFECTS OF REACTION INDUCED GAS BUBBLE FORMATION ON GROUNDWATER HYDROLOGY AND GEOCHEMISTRY: REACTIVE TRANSPORT MODELLING: AMOS, Rich T., Earth and Ocean Sciences, Univ of British Columbia, 6339 Stores Rd, Vancouver, BC V6T 1Z4, ramos@eos.ubc.ca and MAYER, K. Ulrich, Earth and Ocean Sciences, Univ of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada
202-1111:00 AM GAS TRANSPORT BELOW ARTIFICIAL RECHARGE PONDS: INSIGHTS FROM DISSOLVED NOBLE GASES AND A DUAL GAS (SF6 AND 3HE) TRACER EXPERIMENT: AVISAR, Dror, Institute for Crustal Studies, Univ of California, Santa Barbara, CA 93106, dror@crustal.ucsb.edu, CLARK, Jordan F., Geological Sciences, Univ of California, Santa Barbara, CA 93106, and HUDSON, G. Bryant, Analytical and Nuclear Chemistry Division, Lawrence Livermore National Lab, Livermore, CA 94550
202-1211:15 AM TRAPPED GASES BENEATH A RECENTLY COMPLETED RESERVOIR: USING ARTIFICIAL RECHARGE AS AN ANALOGUE TO NATURAL PROCESSES: SOLOMON, D. Kip, Department of Geology & Geophysics, Univ of Utah, 135 S. 1460 E., Room 719, Salt Lake City, UT 84112, ksolomon@mines.utah.edu and HEILWEIL, Victor M., Water Resources Division - Utah District, United States Geol Survey, 2329 Orton Circle, Salt Lake City, UT 84119
202-1311:30 AM PASSIVE GAS DIFFUSION SAMPLING AT MONITORED NATURAL ATTENUATION SITES: MCLEISH, K.L.1, RYAN, M.C.2, CHU, A.1, and ARMSTRONG, J.E.3, (1) Department of Civil Engineering, Univ of Calgary, 2500 University Drive Northwest, Calgary, AB T2N 1N4, Canada, klmcleis@ucalgary.ca, (2) Department of Geology and Geophysics, Univ of Calgary, 2500 University Drive Northwest, Calgary, AB T2N 1N4, Canada, (3) Geotechnical Center, Department of Civil and Environmental Engineering, Univ of Alberta, 220 Civil Engineering Building, Edmonton, AB T6G 2G7, Canada
202-1411:45 AM NEW TRENDS IN d18O VS DISSOLVED OXYGEN CONCENTRATIONS IN GROUNDWATER OBSERVED BELOW THE KEY LAKE URANIUM MINE, NORTHERN SASKATCHEWAN, CANADA: HARRINGTON, Nikki M.1, HENDRY, M. Jim1, WASSENAAR, Leonard I.2, and BIRKHAM, Tyler K.1, (1) Univ of Saskatchewan, 114 Science Pl, Saskatoon, SK S7N 5E2, nikki.harrington@usask.ca, (2) National Water Research Insitute, Environ Canada, 11 Innovation Blvd, Saskatoon, SK S7N 3H5

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