Session: Economic Geology III: Remote Sensing; Porphyry, Skarn, Replacement, Epithermal, and Supergene Deposits (GSA Annual Meeting, November 5-8, 2001)

Paper #

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8:00 AM

EXPLORATION FOR THE MINERALIZED GRANITES IN ARABO-NUBIAN SHIELD, USING ORBITAL REMOTE SENSING

RAMADAN, Talaat¹, YAHIA, Adel¹, FAWZY, Shreif² and GAD, Sabreen³, (1)Geology, NARSS, Egypt, 23 Joseph Brous Tito, Nozha El Gedida, Alf Maskan-Cairo, 1564, Egypt, (2)Geolgy, Faculty of sciences, Aswan, South Valley Univ, (3)Geology, Faculty of sciences, Aswan, South Valley Univ, Talaat_narss@yahoo.com, Talaat_narss@yahoo.com

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8:15 AM

BUBBLING MAGMA CHAMBERS AND PORPHYRY COPPER DEPOSITS

CLOOS, Mark, Geological Sciences, Univ of Texas at Austin, Austin, TX 78712, cloos@mail.utexas.edu, cloos@mail.utexas.edu

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8:30 AM

MAGMATIC ANHYDRITE IN THE HANOVER-FIERRO STOCK AND ITS IMPLICATIONS FOR FS₂-FO₂ OF INTRUSIONS ASSOCIATED WITH PORPHYRY COPPER DEPOSITS

CORE, Daniel, KESLER, Stephen and ESSENE, Eric, Geological Sciences, Univ of Michigan, 2534 C.C. Little Building, 425 E. University Ave, Ann Arbor, MI 48109, dcore@umich.edu, dcore@umich.edu

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8:45 AM

VARIATIONS IN MAGMATIC SULFIDES IN DIKES, LARGE INTRUSIONS, AND VOLCANIC ROCKS, BINGHAM AND TINTIC DISTRICTS AND WASATCH PLATEAU, UTAH

STAVAST, William J.A., KEITH, Jeffrey D., CHRISTIANSEN, Eric H. and DORAIS, Michael J., Department of Geology, Brigham Young Univ, Provo, UT 84602, wjs24@geology.byu.edu, wjs24@geology.byu.edu

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9:00 AM

Withdrawn

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9:15 AM

TEMPORAL OVERLAP OF SUPERGENE ALTERATION AND HIGH-SULFIDATION MINERALIZATION IN THE SPENCE PORPHYRY COPPER DEPOSIT, II REGION, CHILE

ROWLAND, Matthew G., 314 Richmond Rd, Kingston-upon-Thames, Surrey, KT2 5PW, England and CLARK, Alan H., Department of Geological Sciences and Geological Engineering, Queen's Univ, Kingston, ON K7L 3N6, Canada, charbon@geol.queensu.ca, charbon@geol.queensu.ca

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9:30 AM

THE REGIONAL TECTONIC SETTING OF THE GIANT ANTAMINA CU-ZN SKARN DEPOSIT, NORTH-CENTRAL PERU

LOVE, David A.¹, CLARK, Alan H.¹, STRUSIEVICZ, O. Robert¹ and LEE, James K.W., (1)Dept of Geological Sciences & Geological Engineering, Queen's Univ, Kingston, ON K7L 3N6, Canada, love@geol.queensu.ca, love@geol.queensu.ca

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9:45 AM

METAL ZONATION AND THE TIMING OF GOLD MINERALISATION ASSOCIATED WITH THE BIG GOSSAN CU-AU DEPOSIT, ERTSBERG DISTRICT, IRIAN JAYA, INDONESIA

PRENDERGAST Sr, Kylie¹, TAYLOR, Roger, G.², CLARKE, Gavin W.¹ and POLLARD, Peter J.², (1)Economic Geology Research Unit, School of Earth Sciences, James Cook Univ, Townsville Qld, 4811, Australia, (2)Pollard and Taylor Geological Services Pty Ltd, c/o School of Earth Sciences, James Cook University, Townsville, Qld, 4811, Australia, kylie.prendergast@jcu.edu.au, kylie.prendergast@jcu.edu.au

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10:00 AM

HIGH-PRECISION GEOCHRONOLOGY CONSTRAINS ON MIOCENE MAGMATIC AND MINERALISING EVENTS IN THE PB-ZN-AG-CU DOMO DE YAULI DISTRICT, PERU

BEUCHAT, Sébastien¹, SCHALTEGGER, Urs², COSCA, Mike³, MORITZ, Robert¹ and CHIARADIA, Massimo¹, (1)Department of Mineralogy, Univ of Geneva, 13, rue des Maraîchers, Geneva 4, 1211, Switzerland, (2)Institute for Isotope Geology and Mineral Resources, Federal Institute of Technology ETH, Zürich, 8092, Switzerland, (3)Institut de Minéralogie et Géochimie, Univ of Lausanne, Lausanne, 1015, Switzerland, Sebastien.Beuchat@terre.unige.ch, Sebastien.Beuchat@terre.unige.ch

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10:15 AM

WERE CENTRAL ANDEAN CRUSTALLY-DERIVED ORE METALS ASSIMILATED OR LEACHED? THE EXAMPLE OF POTOSI

MACFARLANE, Andrew W., Earth Sciences, Florida Int'l Univ, 107th Avenue/University Park, Miami, FL 33199, KAMENOV, George, Geological Sciences, Univ of Florida, 24 Williamson Hall, Gainesville, FL 32611 and RICIPUTI, Lee, Chemical & Analytical Sciences Division, Oak Ridge National Lab, PO Box 2008, Oak Ridge, TN 37831-6365, macfarla@fiu.edu, macfarla@fiu.edu

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10:30 AM

THE EL INDIO-PASCUA AU BELT, CHILE/ARGENTINA: REGIONAL AND LOCAL CONTROL OF EPITHERMAL MINERALIZATION BY PEDIMENT INCISION

BISSIG, Thomas¹, CLARK, Alan H.¹, LEE, James K.W.¹ and HODGSON, C. Jay², (1)Department of Geological Sciences and Geological Engineering, Queen's Univ, Kingston, ON K7L 3N6, Canada, (2)Barrick Gold Corporation, 200 Bay Street, Toronto, ON M5J 2J3, Canada, bissig@geoladm.geol.queensu.ca, bissig@geoladm.geol.queensu.ca

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10:45 AM

“BLEACHING” AT THE COMSTOCK DISTRICT, NEVADA: DISTINGUISHING MULTIPLE CAUSES

SINGLETON, Michael J. and CRISS, Robert E., Earth and Planetary Science, Washington Univ, One Brookings Dr, Saint Louis, MO 63130-4899, singleton@levee.wustl.edu, singleton@levee.wustl.edu

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11:15 AM

EVALUATION OF A PROSPECT AT TEBISCO, MOCTEZUMA DISTRICT, SONORA, MEXICO

ATKINSON Jr, William W., Department of Geological Sciences, Univ of Colorado, 399UCB, Boulder, CO 80309, william.atkinson@colorado.edu, william.atkinson@colorado.edu

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11:00 AM

CRATER LAKE BRINES AS MODERN ANALOGS OF ORE-TRANSPORTING FLUIDS

VAREKAMP, Johan C., Earth & Environmental Sciences, Wesleyan Univ, 265 Church street, Middletown, CT 06459-0139 and OUIMETTE, Andrew P., Volcano Hazards Division, US Geol Survey, Menlo Park, CA 94025, jvarekamp@wesleyan.edu, jvarekamp@wesleyan.edu

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11:30 AM

CHLORINE ISOTOPE AND BROMINE EVIDENCE OF A JURASSIC SEDIMENTARY CHLORIDE SOURCE FOR ATACAMITE MINERALIZATION AT THE RADOMIRO TOMIC PORPHYRY COPPER DEPOSIT, NORTHERN CHILE

ARCURI, Terry and BRIMHALL, George, Department of Earth and Planetary Science, Univ of California, Berkeley, CA 94720-4767, tarcuri@uclink4.berkeley.edu, tarcuri@uclink4.berkeley.edu

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11:45 AM

STABLE ISOTOPE CHARACTERIZATION OF THE THERMAL PROFILE AND SUBSURFACE BIOLOGICAL ACTIVITY DURING OXIDATION OF THE GREAT AUSTRALIA DEPOSIT, QUEENSLAND, AUSTRALIA

MELCHIORRE, Erik B., Geology and Geography Department, DePauw University, 602 South College, Greencastle, IN 46135 and WILLIAMS, Peter A., School of Science, University of Western Sydney, Locked Bag 1797, New South Wales, Penrith South, 1797, Australia, emelch@depauw.edu, emelch@depauw.edu