2009 Portland GSA Annual Meeting (18-21 October 2009)
Session No. 239 Wednesday, 21 October 2009
8:00 AM-12:00 PM, Oregon Convention Center: Portland Ballroom 252

T124. Fluid-Driven Geochemical Transformations: In Honor of Harold Helgeson (Society of Economic Geologists; Geochemical Society)

Everett L. Shock, Dennis Bird, William M. Murphy and John Dilles, Presiding
 Paper #Start Time
 8:00 AM Introductory Remarks
239-18:10 AM A HYDROGEOCHEMICAL MODEL OF PIT LAKE EVOLUTION ACCOUNTING FOR SEASONALLY VARIABLE PROCESSES: SAVAGE, Kaye, Environmental Studies, Wofford College, 429 N. Church St, Spartanburg, SC 29303, savageks@wofford.edu, ASHLEY, Roger P., US Geological Survey, 345 Middlefield Road, Menlo Park, CA 94025, and BIRD, Dennis K., Geological and Environmental Sciences, Stanford Univ, Stanford, CA 94305-2115
239-28:30 AM EXPERIMENTAL STUDY AND NUMERICAL MODELLING OF GEOCHEMICAL REACTIONS OCCURRING DURING URANIUM IN SITU RECOVERY (ISR) MINING: BEN SIMON, Rose1, BÉLIÈRES, Michel2, SCHMITT, Jean-Michel3, and THIRY, Médard1, (1) Centre de Géosciences, Mines Paris Tech, 35 rue Saint-Honoré, Fontainebleau, 77305, France, rose.ben_simon@mines-paristech.fr, (2) SEPA, AREVA NC BU Mines, 1 avenue Brugeaud, B.P. N°71, Bessines/Gartempe, 87250, France, (3) Geosciences Department, AREVA NC BU Mines, 1 place Jean Millier, Paris La Défense Cedex, 92084, France
239-38:45 AM THERMODYNAMICS OF FLUID-DRIVEN OXIDATION OF URANINITE, PRECIPITATION OF URANOPHANE, AND COPRECIPITATION OF NEPTUNIUM: MURPHY, William M., Department of Geological and Environmental Sciences, California State University, Chico, California State University, Chico, Chico, CA 95929-0205, wmurphy@csuchico.edu
239-49:00 AM MINERAL-SOLUTION EQUILIBRIA AT HIGH PRESSURES: MANNING, Craig E., Earth and Space Sciences, University of California, Los Angeles, CA 90095, manning@ess.ucla.edu
239-59:20 AM METAMORPHIC DEHYDRATION REACTIONS DRIVE PYRITE BREAKDOWN AND FORMATION OF A SULFUR GENERATION WINDOW: THE SOURCE OF OROGENIC GOLD: TOMKINS, Andrew G., School of Geosciences, Monash University, P.O. Box 28E, Melbourne 3800 Australia, andy.tomkins@sci.monash.edu.au
239-69:35 AM WALL-ROCK ALTERATION IN PORPHYRY COPPER DEPOSITS: PREDICTION OF HYDROTHERMAL FLUID COMPOSITIONS, FLOW PATHS, AND SULFIDE ORE DEPOSITION: DILLES, John H., Geosciences, Oregon State University, Wilkinson Hall 104, Corvallis, OR 97331-5506, dillesj@geo.oregonstate.edu, PROFFETT, John M., P.O. Box 772066, Eagle River, AK 99577, BARTON, Mark D., Dept. of Geosciences, University of Arizona, Tucson, AZ 85721, and SEEDORFF, Eric, Dept. of Geosciences, University of Arizona, 1040 E. Fourth St., Room 316, Tucson, AZ 85721
239-79:50 AM EVIDENCE FOR BASINAL-BRINE MIGRATION AND WATER ROCK INTERACTIONS FROM 129I/I, 87SR/86SR AND TRACE METAL GEOCHEMISTRY: NORTHERN APPALACHIAN BASIN: OSBORN, Stephen G., Hydrology and Water Resources, The University of Arizona, 1133 E. James E. Rogers Way, Tuscon, AZ 85721, sosborn@hwr.arizona.edu, MCINTOSH, Jennifer C., Department of Hydrology and Water Resources, University of Arizona, Tucson, AZ 85721, MARTINI, Anna M., Department of Geology, Amherst College, Amherst, MA 01002, and HANOR, Jeffrey S., Geology and Geophysics, Louisiana State University, Baton Rouge, LA 70803-4101
239-810:05 AM QUARTZ TRANSPORT AND DEPOSITION FROM IMMISCIBLE FLUIDS IN PORPHYRY COPPER SYSTEMS: STEELE-MACINNIS, Matthew J.1, RIMSTIDT, J. Donald2, LOWELL, Robert3, and BODNAR, Robert J.1, (1) Department of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061, mjmaci@vt.edu, (2) Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061, (3) Department of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061-0420
239-910:25 AM A HYDROTHERMAL LIQUID LINE OF DESCENT FROM MAGMA TO EPITHERMAL FLUID: REED, Mark, Geological Sciences, University of Oregon, Eugene, OR 97403, mhreed@uoregon.edu, RUSK, Brian, School of Earth & Environmental Sciences, James Cook University, Townsville, 4811, Australia, and PALANDRI, James, Geological Sciences, University of Oregon, Eugene, OR 97403-1272
239-1010:40 AM MINERAL REPLACEMENT: KEY TO GEOCHEMICAL DYNAMICS AND TO ITS MODELING: MERINO, Enrique, Geology, Indiana Univ, Bloomington, IN 47405, merino@indiana.edu
239-1110:55 AM ASYMMETRIC AMPLIFICATION OF PROTEIN AMINO ACIDS IN CARBONACEOUS METEORITES: ENGEL, Michael H., School of Geology and Geophysics, University of Oklahoma, Norman, OK 73019, ab1635@ou.edu and MACKO, Stephen A., Department of Environmental Sciences, University of Virginia, 291 McCormick Road, P.O. Box 400123, Charlottesville, VA 22904-4123
239-1211:10 AM MODELING SOLIDS IN ASTROPHYSICAL GASEOUS (FLUID) DISKS AS COSMOCHEMICAL INDICATORS: EBEL, Denton S.1, ALEXANDER, Conel M. O'D.2, CIESLA, Fred J.3, DAVIS, Andrew M.3, MAC LOW, Mordecai-Mark4, MARON, Jason4, and YOUNG, Edward D.5, (1) Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West at 79th St, New York, NY 10024, Debel@amnh.org, (2) Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC 20015, (3) Dept. of Geophysical Sciences, University of Chicago, Chicago, IL 60637, (4) Dept. of Astrophysics, American Museum of Natural History, Central Park West at 79th St, New York, NY 10024, (5) Dept. of Earth and Space Sciences and IGPP Center for Astrobiology, NASA Astrobiology Institute, Univ. of California, Los Angeles, CA 90095-1567
239-1311:25 AM MODIFIED HELGESON, KIRKHAM AND FLOWERS EQUATION OF STATE FOR STANDARD PARTIAL MOLAL PROPERTIES OF IONS: WALTHER, John V., Huffington Department of Earth Sciences, Southern Methodist University, Dallas, TX 75225, walther@smu.edu
239-1411:40 AM A SOLID SOLUTION APPROACH TO STANDARD STATE THERMODYNAMIC MODELS OF MINERAL SURFACES: NEUHOFF, Philip S., Department of Geological Sciences, University of Florida, 241 Williamson Hall, P.O. Box 112120, Gainesville, FL 32611-2120, neuhoff@ufl.edu

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