Geological Society of America

8:00 AM

PORPHYRY CU-AU MINERALIZATION IN THE ERTSBERG INTRUSION, WEST PAPUA, INDONESIA: STYLE, TIMING, AND SOURCES OF HYDROTHERMAL FLUIDS

Stacie L. Gibbins, University of Arizona, Tucson, AZ and Spencer Titley, N/A and Kurt Friehauf, Kutztown University, Kutztown, PA

97138 (Technical Sessions)

8:15 AM

THE RELATIONSHIP BETWEEN INTRUSION AND ALTERATION AT THE CHUQUICAMATA PORPHYRY COPPER SYSTEM, CHILE

Alexandra M. Arnott, Dalhousie University, Halifax, NS and Marcos Zentilli, Dalhousie University, Halifax, NS

95101 (Technical Sessions)

8:30 AM

GEOCHRONOLOGY AND GEOCHEMISTRY OF THE HILLTOP, LEWIS, AND BULLION MINING DISTRICTS, BATTLE MOUNTAIN-EUREKA TREND, NEVADA

Chris R. Kelson, University of Georgia, Athens, GA and Douglas Crowe, Univ of Georgia, Athens, GA and Holly Stein, Colorado State Univ, Fort Collins, CO

96141 (Technical Sessions)

8:45 AM

GEOCHRONOLOGIC EVIDENCE OF MULTIPLE OVERLAPPING, FRACTURE-CONTROLLED MAGMATIC AND HYDROTHERMAL PULSES IN THE BUTTE DISTRICT: GENETIC IMPLICATIONS FOR Ag AND Cu VEINS AND PORPHYRY Mo

Karen Lund, U.S. Geol Survey, Denver, CO and John Aleinikoff, U.S. Geol Survey, Denver, CO and M. Kunk, USGS, Denver, CO

91132 (Technical Sessions)

9:00 AM

GENETIC IMPLICATIONS OF SOME TRACE ELEMENTS IN CHALCOPYRITE

Spencer R. Titley, University of Arizona, Tucson, AZ and Joaquin Ruiz, Univ of Arizona, Tucson, AZ

95710 (Technical Sessions)

9:15 AM

CAUSES OF VARIATIONS IN COPPER ISOTOPE RATIOS IN THE PORPHYRY/SKARN ORE ENVIRONMENT: SOURCES OR PROCESSES?

Kierran C. Maher, Washington State University, Pullman, WA and Scott Wood, Univ of Idaho, Moscow, ID and Peter Larson, Washington State University, Pullman, WA

96632 (Technical Sessions)

9:45 AM

ISOTOPIC EVIDENCE FOR THE MULTIPLE SOURCES OF LEAD IN PORPHYRY CU-MO AND BASE METAL LODE ORES AT BUTTE, MONTANA

John Dilles, Oregon State University, Corvallis, OR and Adam Kent, Oregon State University, Corvallis, OR

92650 (Technical Sessions)

10:00 AM

HALOGEN ANALYSIS OF QUARTZ HOSTED FLUID INCLUSIONS FROM PORPHYRY CU DEPOSITS: BINGHAM CANYON, BUTTE, AND BAJO DE LA ALUMBRERA

T.J. Nahnybida, University of Alberta, Edmonton, AB and S.A. Gleeson, University of Alberta, Edmonton, AB and B.G. Rusk, Denver, CO and A.C. Harris, University of Tasmania, Hobart, N/A and K. Schroeder, Kennecott Utah Copper, Salt Lake City, UT

93626 (Technical Sessions)

10:15 AM

ORIGIN AND EVOLUTION OF HYDROTHERMAL FLUIDS THAT FORMED THE PORPHYRY CU-MO DEPOSIT IN BUTTE, MONTANA: A MULTI-FACETED FLUID INCLUSION STUDY

Brian Rusk, Denver, CO and Gary P. Landis, US Geol Survey, Denver, CO and Andrew G. Hunt, U.S. Geological Survey, Denver, CO and Albert H. Hofstra, U.S. Geological Survey, Denver, CO and Mark Reed, University of Oregon, Eugene, OR and John Dilles, Oregon State University, Corvallis, OR and Robert O. Rye, Colorado, N/A

97261 (Technical Sessions)

10:30 AM

THE BUTTE HYDROTHERMAL SYSTEM: ONE MAGMATIC FLUID YIELDED ALL VEIN TYPES

Mark Reed, University of Oregon, Eugene, OR and Brian Rusk, Denver, CO and James Palandri, University of Oregon, Eugene, OR and John Dilles, Oregon State University, Corvallis, OR

96154 (Technical Sessions)

10:45 AM

THE SWEET HOME RHODOCHROSITE SPECIMEN MINE, ALMA DISTRICT, CENTRAL COLORADO: THE PORPHYRY MOLYBDENUM – FLUORINE CONNECTION

Paul J. Bartos, Colorado School of Mines, Golden, CO and Eric P. Nelson, Colorado School of Mines, Golden, CO and Dean Misantoni, Colorado Calumet Company Inc, Golden, CO

90017 (Technical Sessions)

11:00 AM

FLUID SOURCES FOR IOCG (CANDELARIA, PUNTA DEL COBRE) AND PORPHYRY CU-STYLE MINERALIZATION, COPIAPO BATHOLITH, CHILE: GEOLOGIC AND SR ISOTOPIC CONSTRAINTS

Mark D. Barton, Univ. of Arizona, Tucson, AZ and Eric P. Jensen, Univ. of Arizona, Tucson, AZ and Mihai Ducea, Univ. of Arizona, Tucson, AZ

96645 (Technical Sessions)

T138 Sources of Porphyry Copper Deposits: Magmas, Metals, and Fluids II

Presentations