Session: Economic Geology I (2005 Salt Lake City Annual Meeting (October 16

Paper #

Start Time

1

10:00 AM

OXYGEN AND HYDROGEN ISOTOPIC STUDIES OF THE UITKOMST NI-CU SULFIDE DEPOSIT, SOUTH AFRICA: EVIDENCE OF SELECTIVE CRUSTAL CONTAMINATION, MULTIPLE MAGMA INJECTION, AND HYDROTHERMAL ALTERATION

SARKAR, Arindam¹, RIPLEY, Edward M.² and LI, Chusi², (1)Department of Geological Sciences, Indiana Univ, 1001 E. 10th Street, Bloomington, IN 47405, (2)Department of Geological Sciences, Indiana Univ, 1001 E. 10th St, Bloomington, IN 47405, asarkar@indiana.edu, asarkar@indiana.edu

2

10:15 AM

ISOTOPIC AND GEOCHEMICAL STUDIES OF HOST ROCK PYROXENITES ASSOCIATED WITH CU-NI-PGE MINERALIZATION IN THE DUKE ISLAND COMPLEX, ALASKA

THAKURTA, Joyashish¹, RIPLEY, Edward M.² and LI, Chusi², (1)Department of Geological Sciences, Ohio University, 316 Clippinger Laboratories, Athens, OH 45701, (2)Department of Geological Sciences, Indiana Univ, 1001 E. 10th St, Bloomington, IN 47405, jthakurta@gmail.com, jthakurta@gmail.com

3

10:30 AM

SULFUR ISOTOPE EVIDENCE FOR MAGMATIC CONTRIBUTIONS TO SUBMARINE AND SUBAERIAL GOLD MINERALIZATION: CONICAL SEAMOUNT AND THE LADOLAM EPITHERMAL DEPOSIT, PAPUA NEW GUINEA

GEMMELL, J. Bruce, Centre of Excellence in Ore Deposits (CODES), University of Tasmania, Private Bag 79, Hobart, Tasmania, 7001, Australia, bruce.gemmell@utas.edu.au, bruce.gemmell@utas.edu.au

4

10:45 AM

RARE-EARTH AND MAJOR ELEMENT CHEMISTRY OF GARNET-RICH ROCKS IN THE SOUTHERN CURNAMONA PROVINCE, AUSTRALIA: IMPLICATIONS FOR THE EXPLORATION OF BROKEN HILL-TYPE PB-ZN-AG DEPOSITS

HEIMANN, Adriana¹, SPRY, Paul G.¹, TEALE, Graham S.², CONOR, Colin H.H.³ and PEARSON, Norman J.⁴, (1)Geological & Atmospheric Sciences, Iowa State Univ, 253 Science I, Ames, IA 50011-3212, (2)Teale and Associates, PO Box 740, South Australia, North Adelaide, 5082, Australia, (3)Geological Survey Branch, Primary Industries and Resources South Australia, GPO Box 1671, South Australia, Adelaide, 5001, Australia, (4)ARC National Key Centre for Geochemical Evolution and Metallogeny of Continents (GEMOC), Macquarie Univ, New South Wales, Sydney, 2109, Australia, aheimann@iastate.edu, aheimann@iastate.edu

5

11:00 AM

RE-OS ARSENOPYRITE GEOCHRONOLOGY OF THE HOMESTAKE GOLD DEPOSIT, BLACK HILLS, SOUTH DAKOTA, AND IMPLICATIONS FOR CHRONOMETER CLOSURE TEMPERATURE

MORELLI, Ryan M., Earth and Atmospheric Science, Univ of Alberta, 2-04D Earth Sciences Building, Edmonton, AB T6G 2E3, CREASER, Robert A., Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Edmonton, AB T6G 2E3, Canada and BELL, Chris C., School of Earth Sciences, James Cook University, Townsville, 4811, Australia, rmorelli@ualberta.ca, rmorelli@ualberta.ca

6

11:15 AM

SULFIDE SCALES FROM GEOTHERMAL BRINE IN WELLS AT REYKJANES, ICELAND

HARDARDOTTIR, Vigdis, Earth Sciences, University of Ottawa, Marion Hall 140 Louis Pasteur Street, Ottawa Ontario, K1S 0X7, vh@isor.is, vh@isor.is

7

11:30 AM

COUPLED PROCESSES IN HYDROTHERMAL ORE DEPOSITION: NUMERICAL SIMULATIOINS OF DEFORMATION, FLUID FLOW, HEAT TRANSFER, AND CHEMICAL REACTIONS

ROBERTS, Paul A.¹, GESSNER, Klaus², SHELDON, Heather¹, ORD, Alison³, SCHAUBS, Peter M.⁴, ZHANG, Yanhua¹, POTMA, Warren¹, ZHAO, Chongbin¹ and KÜHN, Michael¹, (1)Computational Geoscience for Predictive Discovery, CSIRO Exploration and Mining, 26 Dick Perry Avenue, Kensington, 6151, Australia, (2)Computational Geoscience Group, CSIRO Exploration and Mining, PO Box 1130, Bentley, 6102, Australia, (3)Australian Geodynamics Cooperative Research Centre, CSIRO Exploration & Mining, PO Box 1130, Bentley, WA, 6102, Australia, (4)Computational Geoscience for Preditive Discovery, CSIRO Exploration and Mining, 26 Dick Perry Avenue, Kensington, 6151, Australia, paul.a.roberts@csiro.au, paul.a.roberts@csiro.au

8

11:45 AM

THALLIUM: A PATHFINDER ELEMENT FOR SHALE-HOSTED SEDEX ZN-PB-AG DEPOSITS, BROOKS RANGE, ALASKA

GRAHAM, Garth E.¹, KELLEY, Karen D.¹, SLACK, John F.² and KOENIG, Alan E.³, (1)U.S. Geological Survey, Box 25046, MS 973, Denver, CO 80225, (2)U.S. Geol Survey, National Center, MS 954, Reston, VA 20192, (3)USGS, Denver Federal Center, MS 973, Denver, CO 80225, ggraham@usgs.gov, ggraham@usgs.gov

2005 Salt Lake City Annual Meeting (October 16–19, 2005)

Economic Geology I