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2002 Denver Annual Meeting (October 27-30, 2002)

Session No. 36
Sunday, 27 October 2002: 1:00 PM-3:45 PM

T10. Role of Mafic Magmas in the Generation of Porphyry Copper Deposits

Society of Economic Geologists

 

Alexandra Skewes and Jeffrey Keith, Advocates
Paper #
Start Time
1
1:00 PM
MAGMA MIXING AND MINERALIZATION: EMPIRICAL EVIDENCE FROM QUESTA(MO), N.M., USA; NUKAY(AU-CU), GUERRERO, MEXICO; LAS BAMBAS(CU-AU), PERU
JONES, David M., Paradex Consulting, 4901 E. Sunrise #1808, Tucson, AZ 85718, jdavidm243@aol.com, jdavidm243@aol.com
2
1:20 PM
MAFIC MAGMATISM ASSOCIATED WITH THE GENESIS AND EVOLUTION OF EL TENIENTE COPPER DEPOSIT, CHILE
SKEWES, M. Alexandra1, ARÉVALO, Alejandra2, FLOODY, Ricardo2, ZUÑIGA, Patricio H.2 and STERN, Charles R.1, (1)Department of Geological Sciences, Univ of Colorado, CB-399, Boulder, CO 80309-399, (2)Superintendencia Geología, El Teniente, CODELCO-Chile, Millán 1040, Rancagua, Chile, skewes@stripe.colorado.edu, skewes@stripe.colorado.edu
3
1:35 PM
THE ROLE OF MAFIC SHOSHONITIC MAGMAS IN THE ORDOVICIAN PORPHYRY CU-AU DEPOSITS OF NORTH PARKES, NSW, AUSTRALIA
LICKFOLD, Vanessa, Centre for Ore Deposit Research, University of Tasmania, GPO Box 252-79, Hobart, 7001, Australia and COOKE, David R., Centre for Ore Deposit Research, Univ of Tasmania, GPO Box 252-79, Hobart, 7001, Australia, d.cooke@utas.edu.au, d.cooke@utas.edu.au
4
1:50 PM
SR, ND, PB ISOTOPES AND AR-AR DATING OF THE “EL ARCO” PORPHYRY COPPER DEPOSIT, BAJA CALIFORNIA: EVIDENCE FOR CU MINERALIZATION WITHIN AN OCEANIC ISLAND ARC
WEBER, Bodo, Geology Department, Earth Sciences Division, CICESE, km. 107 carr. Tijuana-Ensenada, Ensenada, B.C, 22860, Mexico and LÓPEZ MARTÍNEZ, Margarita, Geology Department, Earth Sciences Division, CICESE, Km. 107 carr. Tijuana-Ensenada, Ensenada, B.C, 22860, Mexico, bweber@cicese.mx, bweber@cicese.mx
 
2:05 PM
Break
5
2:20 PM
ROLE OF MANTLE-DERIVED MAFIC MAGMAS IN THE GENERATION OF THE GIANT MIOCENE AND PLIOCENE COPPER DEPOSITS OF CENTRAL CHILE
STERN, Charles R. and SKEWES, M. Alexandra, Department of Geological Sciences, Univ of Colorado, CB-399, Boulder, CO 80309-399, charles.stern@colorado.edu, charles.stern@colorado.edu
6
2:40 PM
MOBILITY OF COPPER, CHLORINE, AND SULFUR DURING QUENCHING OF HAWAIIAN BASALTIC MAGMAS
STRAND, Spencer R., KEITH, Jeffrey D., DORAIS, Michael J., STAVAST, William J.A., AASE, Jason, HARPER, Matthew P., HARRIS, William B., SYME, Amber K., HENDERSON, Rachel, PORTER, John and ASHLEY, Stephanie E., Geology, Brigham Young Univ, Department of Geology, S389 ESC, Provo, UT 84602-4606, srs29@geology.byu.edu, srs29@geology.byu.edu
7
2:55 PM
ROLE OF OXIDIZED, SULFUR-RICH MAFIC MAGMAS FOR PORPHYRY COPPER MINERALIZATION
HATTORI, Keiko H.1, DE HOOG, Jan C.M.1 and KEITH, Jeffrey D.2, (1)Earth Sciences, Univ of Ottawa, Ottawa, ON K1N 6N5, Canada, (2)Geology, Brigham Young Univ, Provo, UT 84602, khattori@uottawa.ca, khattori@uottawa.ca
8
3:15 PM
COULD THE COMBINATION OF MAFIC AND SILICIC MAGMAS BE VITAL TO PORPHYRY SYSTEMS: A DISCUSSION
KEITH, Jeffrey D., Department of Geology, Brigham Young Univ, S389B ESC, Provo, UT 84602-4606, jeff_keith@byu.edu, jeff_keith@byu.edu
 
3:30 PM
Discussion
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