Session: Economic Geology (Posters) (2002 Denver Annual Meeting (October 27-30, 2002))

Paper #

Booth #

1

METALLOGENY OF A PALEOPROTEROZOIC COLLISIONAL OROGEN THROUGH TIME—THE GREAT FALLS TECTONIC ZONE, MONTANA AND IDAHO

O'NEILL, J.M., KLEIN, T.L. and SIMS, P.K., U.S. Geol Survey, Box 25046, MS 905, Denver Federal Center, Denver, CO 80225, tklein@usgs.gov, tklein@usgs.gov

2

COLORADO MINERAL BELT REVISITED: AN ANALYSIS OF NEW DATA

WILSON, Anna Burack and SIMS, P.K., U.S. Geological Survey, Box 25046, MS 905, Denver Federal Center, Denver, CO 80225, awilson@usgs.gov, awilson@usgs.gov

3

INTERESTING OCURRENCES OF BRECCIA NEAR WEBSTER PASS, COLORADO

MILLAN, Cristina, Department of Geology, Ohio State Univ, Columbus, OH 43210, PRIDE, Douglas, Dept. of Geological Sciences, The Ohio State Univ, 125 South Oval Mall, Columbus, OH 43210-1398 and ROBINSON, Charles, Mineral Systems Inc, Golden, CO 80401, millan.2@osu.edu, millan.2@osu.edu

4

EL TENIENTE PORPHYRY COPPER DEPOSIT IN THE CHILEAN ANDES: NEW GEOCHRONOLOGICAL TIMEFRAME AND DURATION OF HYDROTHERMAL ACTIVITY

MAKSAEV, Victor¹, MUNIZAGA, Francisco², MICHAEL, McWilliams³, FANNING, Mark⁴, MATHUR, Ryan⁵, RUIZ, Joaquin⁶ and THIELE, Karim¹, (1)Departamento de Geología, Universidad de Chile, Casilla 13518, Correo 21, Santiago, Santiago, Chile, (2)Departamento de Geología, Universidad de Chile, casilla 13518, Correo 21, Santiago, 6784537, Chile, (3)Geological and Environmental Sciences, Stanford Univ, Stanford, California, Stanford, CA 94305-2115, (4)Research School of Earth Sciences, Australian National Univ, Canberra, ACT 0200, Canberra, ACT 0200, Australia, (5)Geology, Juniata College, 1700 Moore Street, Huntingdon, PA 16652, (6)Department of Geosciences, Univ of Arizona, Gould-Simpson Bldg, Tucson, 85721, vmaksaev@cec.uchile.cl, vmaksaev@cec.uchile.cl

5

UNDERSTANDING MOLYBDENITE RE-OS AGES FROM THE EL TENIENTE PORPHYRY COPPER DEPOSIT, CHILE

MUNIZAGA, Francisco¹, MAKSAEV, Victor², MATHUR, Ryan³, RUIZ, Joaquin⁴, MCWILLIAMS, Michael⁵ and THIELE, Karim², (1)Departamento de Geología, Universidad de Chile, casilla 13518, Correo 21, Santiago, 6784537, Chile, (2)Departamento de Geología, Universidad de Chile, Casilla 13518, Correo 21, Santiago, Santiago, Chile, (3)Geology, Juniata College, 1700 Moore Street, Huntingdon, PA 16652, (4)Department of Geosciences, Univ of Arizona, Gould-Simpson Bldg, Tucson, 85721, (5)Geological Sciences, Stanford Univ, Stanford, CA 94305, fmunizag@cec.uchile.cl, fmunizag@cec.uchile.cl

6

MOLYBDENITE AGE FOR CANDELARIA IRON OXIDE CU-AU DEPOSIT, AND A COMPARISON OF THE RE-OS ISOTOPIC SIGNATURES OF ORE FROM THE CHILEAN IRON BELT

MATHUR, Ryan, Geology, Juniata College, 1700 Moore Street, Huntingdon, PA 16652, RUIZ, Joaquin, Department of Geosciences, Univ of Arizona, Gould-Simpson Bldg, Tucson, 85721, MARSCHIK, Robert, Institut für Mineralogie, TU Bergakademie Freiberg, Brennhausgasse 14, Freiberg, 09596, Germany and MUNIZAGA, Francisco, Departamento de Geología, Universidad de Chile, casilla 13518, Correo 21, Santiago, 6784537, Chile, Mathur@juniata.edu, Mathur@juniata.edu

7

AN ARCHEAN RE-OS MOLYBDENITE AGE FOR THE GAMELEIRA CU-AU-MO MINERALIZATION, CARAJÁS PROVINCE, BRAZIL

MARSCHIK, Robert¹, MATHUR, Ryan², RUIZ, Joaquin³, LEVEILLE, Richard A.⁴ and DE ALMEIDA, Antonio-José⁴, (1)Institut für Mineralogie, TU Bergakademie Freiberg, Brennhausgasse 14, Freiberg, 09596, Germany, (2)Geology, Juniata College, 1700 Moore Street, Huntingdon, PA 16652, (3)Department of Geosciences, Univ of Arizona, Gould-Simpson Bldg, Tucson, 85721, (4)Phelps Dodge do Brasil Mineração Ltd, Rua do Gloria 344, Rio de Janeiro, Brazil, robert.marschik@mineral.tu-freiberg.de, robert.marschik@mineral.tu-freiberg.de

8

REVISED ⁴⁰AR/³⁹AR AGES OF THE WHITE CLOUD MOLYBDENUM DEPOSIT, CUSTER COUNTY, IDAHO

WINICK, J.A., TAYLOR, C.D., KUNK, M.J. and UNRUH, D., U.S. Geological Survey, Box 25046 Denver Federal Center, Denver, CO 80225, jwinick@usgs.gov, jwinick@usgs.gov

9

U-PB AND RE-OS GEOCHRONOLOGY SUGGEST A MULTISTAGE PRECAMBRIAN-MESOZOIC HISTORY FOR THORIUM AND COPPER MINERALIZATION, LEMHI PASS, IDAHO

GILLERMAN, Virginia S., Idaho Geological Survey, MS 1535, Boise State University, Boise, ID 83725-1535, JERCINOVIC, Michael J., Dept. of Geosciences, Univ of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003-5820 and STEIN, Holly J., AIRIE Program, Colorado State University, Fort Collins, CO 80523-1482, vgillerm@boisestate.edu, vgillerm@boisestate.edu

10

MAGMATIC PROCESSES AND SKARN FORMATION - AN EXAMPLE FROM THE EMPIRE CU-ZN SKARN DEPOSIT, CUSTER COUNTY, IDAHO

CHANG, Zhaoshan, Department of Geology, Washington State Univ, Department of Geology, Washington State University, Pullman, WA 99164-2812 and MEINERT, Lawrence D., Washington State Univ - Pullman, PO Box 642812, Pullman, WA 99164-2812, chang@mail.wsu.edu, chang@mail.wsu.edu

11

FLUID INCLUSION EVIDENCE FOR EVOLUTION OF HYDROTHERMAL FLUIDS FROM THE PORPHYRY COPPER DEPOSIT IN BUTTE, MT

RUSK, Brian G., Geological Sciences, Univ of Oregon, University of Oregon, Eugene, OR 97403-1272, REED, Mark H., Dept. of Geological Sciences, Univ of Oregon, Eugene, OR 97403-1272 and DILLES, John H., Geosciences, Oregon State Univ, Wilkinson Hall, Corvallis, OR 97331, brusk@darkwing.uoregon.edu, brusk@darkwing.uoregon.edu

12

MULTIPLE FLUID EVENTS ASSOCIATED WITH PRECIOUS AND BASE-METAL VEIN MINERALIZATIONS AT COEUR D’ALENE AG-PB-ZN MINING DISTRICT

ARKADAKSKIY, Serguey¹, MUEHLENBACHS, Karlis¹, RICHARDS, Jeremy¹ and PROCHASKA, Walter², (1)Earth and Atmospheric Sciences, Univ of Alberta, 1-26 Earth Sciences Building, Edmonton, AB T6G 2E3, Canada, (2)Geological Sciences, Montan Universitat, 5 Peter Tunner St., A-8700, Leoben, Austria, karlis.muehlenbachs@ualberta.ca, karlis.muehlenbachs@ualberta.ca

13

FLUID INCLUSION HALOGEN-SULFUR ISOTOPE SYSTEMATICS IN THE VIBURNUM TREND MVT DISTRICT, MO: EVIDENCE OF FLUID MIXING THROUGHOUT CU-ZN-PB SULFIDE ORE DEPOSITION

JOHNSON, Aaron W.¹, SHELTON, Kevin L.¹ and GREGG, Jay M.², (1)Geological Sciences, Univ of Missouri-Columbia, Columbia, MO 65211, (2)Geology and Geophysics, Univ of Missouri-Rolla, Rolla, MO 65409, awjohnson@mizzou.edu, awjohnson@mizzou.edu

14

RELATIONSHIP OF EVAPORITES TO BRINE MIGRATION AND CARBONATE HOSTED ZN-PB MINERALIZATION IN THE LOWER CARBONIFEROUS OF SOUTHEASTERN IRELAND

BECKER, Stephen P.¹, NAGY, Zsolt R.¹, JOHNSON, Aaron W.², GREGG, Jay M.¹, SHELTON, Kevin L.², SOMERVILLE, Ian D.³ and WRIGHT, Wayne R.⁴, (1)Department of Geology & Geophysics, Univ of Missouri-Rolla, 125 McNutt Hall, Rolla, MO 65409, (2)Department of Geological Sciences, Univ of Missouri-Columbia, Columbia, MO 65211, (3)Department of Geology, Univ College Dublin, Belfield, Dublin, 4, Ireland, (4)Robertson Research International, Tyn-y-coed Site, Llanrhos, Llandudno, North Wales, LL30 1SA, United Kingdom, sbecker@umr.edu, sbecker@umr.edu

15

LITHOLOGICAL AND STRUCTURAL CONTROLS ON NON-SULFIDE ZINC ORES AT KUH-E-SURMEH, ZAGROS FOLD BELT, SW-IRAN

REICHERT, Joerg and BORG, Gregor, Institute of Geological Sciences, Martin-Luther-Univ Halle-Wittenberg, Domstr. 5, Halle, D-06108, Germany, jo.reichert@web.de, jo.reichert@web.de

16

A SEDIMENTARY-EXHALATORY BARITE DEPOSIT AND ASSOCIATED CHEMOSYNTHETIC BIOHERM, AGUATHUNA QUARRY, PORT AU PORT PENINSULA, NEWFOUNDLAND, CANADA

INDERBITZEN, Katherine E., Dept. of Geological Sciences, Univ of Miami, 43 Cox Science Building, Coral Gables, FL 33146, k.inderbitzen@umiami.edu, k.inderbitzen@umiami.edu

17

EXPERIMENTAL STUDY ON GOLD DEPOSITION ON HYDROUS METAL OXIDES BY ADSORPTION/REDUCTION: IMPLICATIONS FOR GOLD MINERALIZATION IN SUBSURFACE ENVIRONMENT

UCHIDA, Akiko, Astrobiology Research Center & Dept. of Geoscience, The Pennsylvania State Univ, 435 Deike Bldg, University Park, PA 16802, auchida@geosc.psu.edu, auchida@geosc.psu.edu

18

SULFIDATION, ADSORPTION, OR UNKNOWN ARSENIC LIGAND? UNRAVELING THE MYSTERIES OF CARLIN-TYPE DEPOSITS

GRAVES, Robert S., Geological Sciences, Univ of Nevada, Reno, Geological Sciences MS-172, University of Nevada, Reno, Reno, NV 89557, AREHART, Greg B., Geological Sciences, University of Nevada, Reno, Geological Sciences MS-172, University of Nevada, Reno, Reno, NV 89557 and FUERSTENAU, Maurice, C., Chemical & Metallurgical Engineering, University of Nevada, Reno, Chemical & Metallurgical Engineering MS-(388/312), University of Nevada, Reno, Reno, NV 89557, gravesr@scs.unr.edu, gravesr@scs.unr.edu

19

DEVELOPING A SPATIAL AND TEMPORAL MODEL OF CARBONATE VEIN CHARACTERIZATION IN AND AROUND CARLIN-TYPE GOLD DEPOSITS

BUCHANAN, Norman Scott, Geological Sciences, University of Nevada - Reno, Reno, NV 89557 and AREHART, Greg B., Geological Sciences, Univ of Nevada, Reno, Geological Sciences, MS-172, University of Nevada, Reno, Reno, NV 89557, NSBrewer@aol.com, NSBrewer@aol.com

20

STRUCTURAL AND MINERALOGICAL FEATURES OF THE DEEP POST GOLD MINE, NORTHERN CARLIN TREND, NEVADA

MARINO, Fredy Alfonso, Department of Geological Sciences, Univ of Nevada, Ralph J. Roberts Center for Research in Economic Geology (CREG), Reno, NV 89557, fredymarino@hotmail.com, fredymarino@hotmail.com

21

SIDE-SCAN SONAR CHARACTERISTICS OF SEAFLOOR AND MANGANESE NODULE OCCURRENCE BETWEEN THE CLARION AND CLIPPERTON FRACTURE ZONES, NE EQUATORIAL PACIFIC

LEE, Sang Hoon, LEE, Sang Mook, KIM, Hyun Sub and KIM, Ki Hyune, Deep-Sea Resources Research Center, Korea Ocean Research and Development Institute, Ansan P.O. Box 29, Seoul, 425-600, South Korea, sanglee@kordi.re.kr, sanglee@kordi.re.kr

22

MINERALOGY AND GEOCHEMISTRY OF MASSIVE SULFIDES FROM THE NORTH FIJI BASIN

RAHDERS, Erio and HALBACH, Peter, Freie Universitaet Berlin, FR Geochemistry, Hydrogeology, Mineralogy, Malteserstr. 74-100, Berlin, 12249, Germany, eriorahd@zedat.fu-berlin.de, eriorahd@zedat.fu-berlin.de

23

THE COMPOSITION OF ZINC-RICH SPINELS ASSOCIATED WITH METAMORPHOSED MASSIVE SULFIDE DEPOSITS: A REEXAMINATION

HEIMANN, Adriana¹, SPRY, Paul G.¹ and TEALE, Graham S.², (1)Geological & Atmospheric Sciences, Iowa State Univ, 253 Science I, Ames, IA 50011-3212, (2)Teale and Associates, P.O. Box 740, North Adelaide, South Australia, 5006, Australia, aheimann@iastate.edu, aheimann@iastate.edu

24

FOSSILS AS AN INVESTMENT STRATEGY

HIPPENSTEEL, Scott P., Department of Geography and Earth Sciences, Univ of North Carolina at Charlotte, 9201 University City Boulevard, Charlotte, NC 28223-0001 and CONDLIFFE, Simon, Department of Economics, Univ of Delaware, 290 Graham Hall, Newark, DE 19716, shippens@email.uncc.edu, shippens@email.uncc.edu