2009 Portland GSA Annual Meeting (18-21 October 2009)

Session No. 1
Sunday, 18 October 2009: 8:00 AM-12:00 PM
D137/138 (Oregon Convention Center)

Economic Geology I: Copper and Gold Transport in Crustal Fluids: New Advances from Field, Experimental, and Theoretical Studies; Magmatic Sulfide Ores; Porphyry Cu-Mo Ores; S Isotopes

 

Jamie J. Wilkinson, Anthony C. Harris and James D. Webster, Chairs
Paper #
Start Time
 
8:00 AM
Introductory Remarks
1
8:05 AM
COPPER AND GOLD IN PORPHYRY ORE FLUIDS
WILKINSON, Jamie1, WILKINSON, Clara1 and VRY, Victoria H.2, (1)CODES, University of Tasmania, Private Bag 126, Hobart, 7001, Australia, (2)Department of Earth Science and Engineering, Imperial College London, Exhibition Road, London, SW7 2AZ, United Kingdom, j.j.wilkinson@utas.edu.au, j.j.wilkinson@utas.edu.au
2
8:20 AM
THE ROLE OF S AND CL IN THE EXSOLUTION AND EVOLUTION OF MAGMATIC-HYDROTHERMAL FLUIDS AND SUBSEQUENT ORE-METAL TRANSPORT
WEBSTER, James D., American Museum of Natural History, Department of Earth and Planetary Sciences, Central Park West at 79th St., New York, NY 10024, jdw@amnh.org, jdw@amnh.org
3
8:35 AM
IMPACT OF SULFUR ON GOLD AND COPPER TRANSPORT AND FRACTIONATION IN VAPOR-BRINE SYSTEMS: INSIGHTS FROM IN SITU EXPERIMENTS AND PHYSICAL-CHEMICAL MODELING
POKROVSKI, Gleb S., Laboratoire des Mecanismes et Transferts en Geologie, LMTG, CNRS-University of Toulouse, LMTG, 14 avenue Edouard Belin, Toulouse, 31400, France, pokrovsk@lmtg.obs-mip.fr, pokrovsk@lmtg.obs-mip.fr
4
8:50 AM
X-RAY ABSORPTION SPECTROSCOPY UP TO 700°C: DECOUPLING OF CU FROM OTHER METAL-CHLORIDE COMPLEXES
HARRIS, Anthony C., ARC Centre of Excellence in Ore Deposits, University of Tasmania, Private Bag 79, Hobart, 7001, Australia, BERRY, Andrew J., Department of Earth Science and Engineering, Imperial College, South Kensington, London, SW7 2AZ, United Kingdom, NEWVILLE, Matt, Consortium for Advanced Radiation Sources, University of Chicago, Argonne, IL 60439 and SUTTON, Stephen R., CARS, University of Chicago, Buldg 434A, APS, 9700 S.Cass Ave, Argonne, IL 60439, A.Harris@utas.edu.au, A.Harris@utas.edu.au
5
9:05 AM
SEEKING THE MISSING ANIONIC SPECIES IN LOW SALINITY CU-RICH FLUIDS FROM MAGMATIC-HYDROTHERMAL SYSTEMS
WILKINSON, Clara C.1, WILKINSON, Jamie J.2, RYAN, Chris G.3, LAIRD, Jamie S.3, MERNAGH, Terry P.4, RUSK, Brian G.5 and JEFFRIES, Teresa E.6, (1)CODES, University of Tasmania, Private Bag 126, Hobart, TAS 7001, Australia, (2)Department of Earth Science and Engineering, Imperial College London, London, SW7 2AZ, United Kingdom, (3)CSIRO Exploration and Mining, School of Physics, University of Melbourne, Melbourne, VIC 3010, Australia, (4)Geoscience Australia, GPO Box 378, Canberra, ACT 2601, Australia, (5)School of Earth and Environmental Sciences, James Cook University, Townsville, QLD 4811, Australia, (6)Core Research Laboratories, The Natural History Museum, Cromwell Road, London, SW7 5BD, United Kingdom, clara.wilkinson@utas.edu.au, clara.wilkinson@utas.edu.au
6
9:20 AM
COPPER TRANSPORT IN CO2-RICH FLUIDS – EVIDENCE FROM FLUID INCLUSIONS IN VOLCANIC ROCK-HOSTED MASSIVE SULFIDE, SANDSTONE-HOSTED, AND SKARN-PORPHYRY CU DEPOSITS
CHI, Guoxiang, Geology, University of Regia, Regina, SK S4S 0A2, Canada, XUE, Chunji, State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, 100083, China and LAI, Jianqing, School of Geoscience and Environmental Engineering, Central South University, Changsha, 410083, guoxiang.chi@uregina.ca, guoxiang.chi@uregina.ca
 
9:35 AM
Discussion
 
9:45 AM
Break
7
10:00 AM
GOLD AND COPPER PARTITIONING IN SULFUR-BEARING VAPOR-BRINE-MELT SYSTEMS AT 800 °C AND 100 MPA
FRANK, Mark R.1, SIMON, Adam2, PETTKE, Thomas3, CANDELA, Philip M.4, PICCOLI, Philip4 and HEINRICH, Christoph5, (1)Department of Geology and Environmental Geosciences, Northern Illinois University, Davis Hall, Room 312, DeKalb, IL 60115, (2)Department of Geoscience, University of Nevada, Las Vegas, 4505 Maryland Pkwy, Las Vegas, NV 89154-4010, (3)Institute of Geological Sciences, University of Bern, Baltzerstrasse 1+3, Bern, CH-3012, Switzerland, (4)Department of Geology, University of Maryland, College Park, College Park, MD 20742, (5)Isotope Geochemistry and Mineral Resources, Federal Institute of Technology, ETH Zentrum NO, CH-8092, Zürich, Switzerland, mfrank@niu.edu, mfrank@niu.edu
8
10:15 AM
EXPERIMENTAL INVESTIGATION OF GOLD SOLUBILITY IN HIGH-TEMPERATURE VAPORS: THE KEY ROLE OF ALKALI METALS IN EFFICIENT GOLD TRANSFER
ZAJACZ, Zoltan1, CANDELA, Philip M.1, PICCOLI, Philip1, SEO, Jung Hun2, GUILLONG, Marcel3 and HEINRICH, Christoph2, (1)Department of Geology, University of Maryland, College Park, College Park, MD 20742, (2)Institute of Isotope Geochemistry and Mineral Resources, ETH Zurich, Zurich, 8092, Switzerland, (3)Institute of Geochemistry and Petrology, Department of Earth Sciences, ETH Zurich, Clausiusstrasse 25, Zurich, 8092, Switzerland, zajacz@umd.edu, zajacz@umd.edu
9
10:30 AM
THE LEON PROPERTY: MOLYBDENUM-COPPER-SILVER-GOLD MINERALIZATION IN DECAPITATED ROOT ZONE OF THE EL CRESTON MINERAL DEPOSIT, SONORA, MEXICO
NOURSE, Jonathan A., Geological Sciences Department, Cal Poly Pomona University, Pomona, CA 91768 and IRWIN, James J., Colibri Resource Corporation, 803-1720 Balsam Street, Vancouver, BC V6K3M2, Canada, janourse@csupomona.edu, janourse@csupomona.edu
10
10:45 AM
A SOIL GEOCHEMISTRY ORIENTATION STUDY OVER THE GIANT PEBBLE CU-AU-MO PORPHYRY DEPOSIT, ALASKA
SMITH, Steven M., EPPINGER, Robert G., KELLEY, Karen D. and FEY, David L., U.S. Geol Survey, Denver Federal Center, MS 973, Denver, CO 80225, smsmith@usgs.gov, smsmith@usgs.gov
11
11:00 AM
ORIGIN OF PLATINUM GROUP ELEMENT MINERALIZATIONS IN SULFIDE-ABSENT AND SULFIDE-PRESENT ALASKAN-TYPE COMPLEXES
THAKURTA, Joyashish, Department of Geological Sciences, Ohio University, 316 Clippinger Laboratories, Athens, OH 45701, RIPLEY, Edward M., Department of Geological Sciences, Indiana Univ, 1001 East 10th St, Bloomington, IN 47405 and LI, Chusi, Department of Geological Sciences, Indiana University, Bloomington, IN 47405, jthakurta@gmail.com, jthakurta@gmail.com
12
11:15 AM
SULFUR ISOTOPE CONSTRAINTS FOR A DYNAMIC MAGMATIC SULFIDE ORE DEPOSITION MODEL IN THE SILL-LIKE SOUTH KAWISHIWI INTRUSION OF THE DULUTH COMPLEX, MINNESOTA, USA
MOLNAR, Ferenc, Eötvös Loránd University, Budapest, Hungary, PETERSON, Dean M., Duluth Metals Limited, 306 W. Superior St, Duluth, MN 55802, AREHART, Greg B., Geological Sciences, Univ of Nevada, Reno, MS-172, Reno, NV 89557, POULSON, Simon, Geological Sciences and Engineering, University of Nevada-Reno, MS 172, Reno, NV 89557-0138 and HAUCK, Steven, Natural Resources Research Institute, University of Minnesota, Duluth, MN 12345, arehart@unr.edu, arehart@unr.edu
13
11:30 AM
THE PALEA KAVALA REDUCED INTRUSION-RELATED BI-TE-PB-SB±AU SYSTEM, NORTHEASTERN GREECE: MINERALOGICAL, FLUID INCLUSION, AND SULFUR ISOTOPE STUDIES
FORNADEL, Andrew P.1, SPRY, Paul G.2, VAVELIDIS, Michael3, MELFOS, Vasilios3 and VOUDOURIS, Panos4, (1)Geological and Atmospheric Sciences, Iowa State University, 253 Science I, Ames, IA 50011-3212, (2)Geological and Atmospheric Sciences, Iowa State University, 253 Science I, Ames, IA 50011, (3)Mineralogy, Petrology & Economic Geology, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece, (4)Mineralogy-Petrology, University of Athens, Athens, 15784, Greece, fornadel@iastate.edu, fornadel@iastate.edu
 
11:45 AM
Discussion II; & Concluding Remarks