Session: Igneous Petrology II (GSA Annual Meeting, November 5-8, 2001)

Paper #

Start Time

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1:30 PM

COMPLEX MAGMA SYSTEM DEVELOPMENT IN NORTHERN NEVADA AND THE ROLE OF EPISODIC BASALT INJECTION INTO THE CRUST

BRUESEKE, Matthew E., Geology, Miami University – Ohio, 114 Shideler Hall, Oxford, OH 45056 and HART, William K., Miami Univ – Ohio, 114 Shideler Hall, Oxford, OH 45056-2473, Brueseme@muohio.edu, Brueseme@muohio.edu

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4:30 PM

OSMIUM ISOTOPIC AND PLATINUM GROUP ELEMENT GEOCHEMISTRY OF PERIDOTITE XENOLITHS FROM THE SIERRA NEVADA ARC AND THE BASIN AND RANGE

LEE, Cin-Ty, Geological and Planetary Sciences, California Institute of Technology, MC 170-25, 1200 E. California Blvd, Pasadena, CA 91125, ctlee@its.caltech.edu, ctlee@its.caltech.edu

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4:00 PM

NATURE AND ORIGIN OF ACADIAN PLUTONISM, PIEDMONT TERRANE, NC-GA

MAPES, Russell W., Dept of Geology, Vanderbilt Univ, Nashville, TN 37235, MILLER, Calvin F., Dept of Geology, Vanderbilt Univ, Nashville, TN, FULLAGAR, Paul D., Dept of Geological Sciences, Univ of North Carolina, Chapel Hill, NC 27599-3315 and BREAM, Brendan R., Dept of Geological Sciences, Univ of Tennessee, Knoxville, TN 37996-1410, russ.mapes@vanderbilt.edu, russ.mapes@vanderbilt.edu

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5:00 PM

THE MAGMATIC EVOLUTION OF THE WESTERN AND CENTRAL ELBA INTRUSIVE COMPLEX, ITALY

WESTERMAN, David S.¹, DINI, Andrea², INNOCENTI, Fabrizio³, ROCCHI, Sergio³ and TONARINI, Sonia², (1)Department of Geology, Norwich Univ, Northfield, VT 05663, (2)Istituto Geocronologia e Geochimica Isotopica, CNR, Pisa, I-56127, Italy, (3)Dipartimento di Scienze della Terra, Università di Pisa, Pisa, I-56126, Italy, westy@norwich.edu, westy@norwich.edu

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3:15 PM

ISOTOPE (ND-SR-PB-O) PROVINCIALITY REVEALED BY TERTIARY VOLCANIC ROCKS FROM THE INDIAN PEAK AND CENTRAL NEVADA CALDERA COMPLEXES OF THE SOUTHERN GREAT BASIN

CHRISTIANSEN, Eric H.¹, BEST, Myron G.¹, HART, Garret L.² and JOHNSON, Clark M.², (1)Department of Geology, Brigham Young Univ, Provo, UT 84602, (2)Department of Geology and Geophysics, Univ of Wisconsin, Madison, WI 53706, eric_christiansen@byu.edu, eric_christiansen@byu.edu

0

5:15 PM

USING EMPLACEMENT POSITION TO HELP CONSTRAIN ORIGIN OF GRANITES

GILBERT, M. Charles, School of Geology & Geophysics, Univ of Oklahoma, 100 E. Boyd, SEC 810, Norman, OK 73019, mcgilbert@ou.edu, mcgilbert@ou.edu

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1:45 PM

COMPOSITIONAL CONSEQUENCES OF LAWSONITE BREAKDOWN IN REGIONS OF WARM SUBDUCTION

FEINEMAN, Maureen D.¹, HAMMERSLEY, Lisa², BRYCE, Julia G.² and CARMICHAEL, Ian S.E.³, (1)Dept of Earth and Planetary Science, Univ of California, Berkeley, Center for Isotope Geochemistry, McCone Hall, Berkeley, CA 94720-4767, (2)Center for Isotope Geochemistry, Dept of Earth and Planetary Sci, University of California, Berkeley, CA 94720-4767, (3)Dept of Earth and Plantary Science, Univ of California, Berkeley, 307 McCone Hall MS4767, Berkeley, CA 94750-4767, feineman@uclink4.berkeley.edu, feineman@uclink4.berkeley.edu

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3:00 PM

IMPLICATIONS OF THE EAST LAKE DYKE FOR THE NATURE OF THE CONTACT BETWEEN THE POVUNGNITUK AND CHUKOTAT GROUPS OF THE CAPE SMITH FOLDBELT, UNGAVA, QUEBEC

STEWART, Andrew J. and FRANCIS, D. M., Earth and Planetary Sciences, McGill Univ, 3450 University St, Montreal, QC H3A 2A7, Canada, astewart@eps.mcgill.ca, astewart@eps.mcgill.ca

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2:00 PM

CONSTRAINTS ON THE LIFETIME OF THE MAGMATIC SYSTEM AT THE GEYSERS, SONOMA COUNTY, CALIFORNIA

SCHMITT, Axel K.¹, GROVE, Marty¹, LOVERA, Oscar M. and HARRISON, T. Mark, (1)Department of Earth and Space Sciences, UCLA, Los Angeles, CA 90095-1567, marty@oro.ess.ucla.edu, marty@oro.ess.ucla.edu

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2:30 PM

FUNDAMENTAL PETROLOGY OF THE EAST HILL SUITE, MONT SAINT-HILAIRE, QUÉBEC, CANADA

TICE, Peter E., WEBBER, Karen L., FALSTER, Alexander U. and SIMMONS, William B., Department of Geology & Geophysics, Univ of New Orleans, New Orleans, LA 70148, aegirine@yahoo.com, aegirine@yahoo.com

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3:30 PM

ISOTOPIC AND GEOCHEMICAL EVIDENCE OF DE-CARBONATION OF SUBDUCTING SLAB IN THE MANTLE WEDGE AS RECORDED IN ULTRAMAFIC XENOLITHS FROM THE KAMCHATKA ARC

BASU, Neil K.¹, BAILEY, David G.¹, YOGODZINSKI, Gene M.², POREDA, Robert J.³ and BASU, Asish R.³, (1)Hamilton College, 198 College Hill Rd, Clinton, NY 13323, (2)Department of Geological Sciences, Univ of South Carolina, Columbia, SC 29208, (3)Department of Earth and Environmental Sciences, Univ of Rochester, 227 Hutchison Hall, Rochester, NY 14627, nkbasu@aol.com, nkbasu@aol.com

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3:45 PM

LEAD ISOTOPE STUDY OF THE PALEOGENE IGNEOUS ROCKS OF THE SIERRA MAESTRA, SOUTHEASTERN CUBA

KYSAR MATTIETTI, Giuseppina¹, LEWIS, John F.¹ and WYSOCZANSKI, Richard², (1)Dept. Earth and Environmental Sciences, The George Washington University, Washington, DC, (2)Mineral Sciences, National Museum of Nat History, Smithsonian Institution, Washington, DC, jlewis@gwu.edu, jlewis@gwu.edu

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2:15 PM

CONTRASTING STYLES OF DEVONIAN GRANITIC MAGMATISM IN COASTAL MAINE

BARTON, Michael and RILEY, Dean N., Geological Sciences, Ohio State Univ, 275 Mendenhall Laboratory, 125 S. Oval Mall, Columbus, OH 43210, barton.2@osu.edu, barton.2@osu.edu

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2:45 PM

GEOLOGY OF THE BEAVER CREEK STOCK IN CLEARWATER COUNTY, IDAHO

WILSON, Susan Yvonne and GEIST, Dennis, Geological Sciences, Univ of Idaho, P.O. Box 443022, Moscow, ID 83844-3022, geopanda@lycos.com, geopanda@lycos.com

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4:45 PM

THE GEOLOGY OF THE DEBLOIS PLUTON COMPLEX AND SURROUNDING ROCKS, EASTERN MAINE

RILEY, Dean N. and BARTON, Michael, Geological Sciences, Ohio State Univ, 275 Mendenhall Laboratory, 125 S. Oval Mall, Columbus, OH 43210, riley@geology.ohio-state.edu, riley@geology.ohio-state.edu

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4:15 PM

OSMIUM ISOTOPE SYSTEMATICS: OBSERVATIONS FROM THE CASCADE ARC

HART, Garret L.¹, JOHNSON, Clark M.¹ and SHIREY, Steven B.², (1)Department of Geology and Geophysics, Univ of Wisconsin, 1215 W. Dayton St, Madison, WI 53706, (2)Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broadbranch Road, N.W, Washington, DC 20015, glhart@geology.wisc.edu, glhart@geology.wisc.edu