2009 Portland GSA Annual Meeting (18-21 October 2009)

Session No. 16
Sunday, 18 October 2009: 8:00 AM-12:00 PM
A105 (Oregon Convention Center)

T74. Pluton Assembly: Duration, Mechanisms, and Structural Controls

GSA Structural Geology and Tectonics Division

 

Eric Horsman, Sven Morgan and Michel de Saint-Blanquat, Advocates
Paper #
Start Time
1
8:00 AM
GEO AND THERMOCHRONOLOGICAL EVICENDE FOR THE EMPLACEMENT AND EXHUMATIONAL HISTORY OF THE TWIN LAKES BATHOLITH: IMPLICATIONS FOR THE LARAMIDE OROGENY
FELDMAN, Josh, Earth and Environmental Sciences, New Mexico Institute of Mining and technology, 801 Leroy Pl, Socorro, NM 87801, HEIZLER, Matthew T., New Mexico Bureau of Geology & Mineral Resources, New Mexico Institute of Mining & Technology, Socorro, NM 87801, KELLEY, Shari, Dept. of Earth and Environmental Science, New Mexico Institute of Mining and Technology, Socorro, NM 87801 and KARLSTROM, Karl, Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131-0001, jfeldman@nmt.edu, jfeldman@nmt.edu
2
8:15 AM
TITANIQ, CATHODOLUMINESCENCE AND OXYGEN ISOTOPE ANALYSES OF THE ALTA STOCK, UT: GEOCHEMICAL INSIGHTS INTO PLUTON ASSEMBLY
JOHNSON, Benjamin W.1, BOWMAN, John R.1, NASH, Barbara P.1, BARTLEY, John M.1 and VALLEY, John W.2, (1)Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112, (2)Department of Geology and Geophysics, University of Wisconsin-Madison, Madison, WI 53706, ben.w.johnson3@gmail.com, ben.w.johnson3@gmail.com
3
8:30 AM
STRUCTURAL SETTING AND SYN-PLUTONIC FAULT KINEMATICS OF A CORDILLERAN CU-AU-(MO) PORPHYRY MINERALIZATION SYSTEM, BINGHAM MINING DISTRICT, OQUIRRH MOUNTAINS, UTAH
GROCOTT, J.1, KLOPPENBURG, A.1, SCHROEDER, K.2, AUSTIN, G.2 and HUTCHINSON, D.1, (1)Midland Valley Exploration Ltd, 144 West George Street, Glasgow, G2 2HG, United Kingdom, (2)Kennecott Utah Copper Company, Bingham Canyon Mine, 8362West 10200South, Bingham Canyon, UT 84006, john@mve.com, john@mve.com
4
8:45 AM
THERMAL-MECHANICAL EVOLUTION OF THE ROOF OF A MID-CRUSTAL TABULAR PLUTON: COUPLED DEFORMATION AND METAMORPHISM, RHEOLOGICAL EVOLUTION, AND CONSTRAINTS ON MAGMA CHAMBER GROWTH
JOHNSON, Scott E., Department of Earth Sciences, University of Maine, 5790 Bryand Global Sciences, Orono, ME 04469, KOONS, Peter O., Department of Earth Sciences, University of Maine, Orono, ME 04469 and JIN, Zhihe, Department of Mechanical Engineering, University of Maine, Orono, ME 04469, johnsons@maine.edu, johnsons@maine.edu
5
9:05 AM
LADDER DIKES IN THE CATHEDRAL PEAK GRANODIORITE: MIGRATING FINGERED DIKES?
BARTLEY, John M., Geology and Geophysics, Univ. of Utah, Salt Lake City, UT 84112, GLAZNER, A.F., Department of Geological Sciences, Univ of North Carolina at Chapel Hill, CB# 3315, Mitchell Hall, Chapel Hill, NC 27599-3315, COLEMAN, D.S., Department of Geological Sciences, University of North Carolina, CB# 3315, Chapel Hill, NC 27599 and LAW, Brian, Reno, NV 89439, john.bartley@utah.edu, john.bartley@utah.edu
6
9:20 AM
DETAILED FIELD, GEOCHEMICAL AND ISOTOPIC CONSTRAINTS ON THE ASSEMBLY OF THE SENTINEL GRANODIORITE, SIERRA NEVADA BATHOLITH, USA
KRUIJER, Thomas1, FULMER, Eric C.1, MILLER, Jonathan S.2 and DAVIES, Gareth R.1, (1)Department of Petrology, VU University Amsterdam, De Boelelaan 1085, Amsterdam, 1081HV, Netherlands, (2)Geology, San Jose State University, San Jose, CA 95192-0102, Jonathan.Miller@sjsu.edu, Jonathan.Miller@sjsu.edu
7
9:35 AM
AMS REVEALS INCREMENTAL EMPLACEMENT AND FINAL CONSTRUCTION OF THE EJB PLUTON, EASTERN CALIFORNIA
MORGAN, Sven S., Department of Geology, Central Michigan University, Brooks Hall, Mt. Pleasant, MI 48859, LAW, Richard D., Department of Geosciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, DE SAINT BLANQUAT, Michel, Observatoire Midi-Pyrénées, CNRS/Université Paul-Sabatier, UMR 5563 / LMTG, Toulouse, 1234, France and MATTY, David J., Division of Undergraduate Education, National Science Foundation, 4201 Wilson Boulevard, Arlington, VA 22230, sven.morgan@cmich.edu, sven.morgan@cmich.edu
8
9:50 AM
DECIPHERING MAGMA CHAMBER PROCESSES IN THE TUOLUMNE INTRUSION AND ITS LOBES USING ELEMENT DISTRIBUTION MAPS OF SINGLE MINERALS
MEMETI, Vali, Department of Earth and Planetary Sciences, Washington University in St. Louis, 1 Brookings Dr, St. Louis, MO 63130-4862, KRAUSE, Joachim, Geochemistry Division, Max Planck Institute for Chemistry Mainz, Becherweg 27, Mainz, 55128, Germany and PATERSON, Scott, Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, memeti@usc.edu, memeti@usc.edu
 
10:05 AM
Break
9
10:20 AM
INCREMENTAL PLUTONIC ASSEMBLY OVER TENS OF MILLIONS OF YEARS? U-PB GEOCHRONOLOGY AND GHOST STRATIGRAPHY IN PEGMATITIC GRANITE, RUBY MOUNTAINS, NEVADA
HOWARD, K.A., U.S. Geological Survey, 345 Middlefield Rd, MS/973, Menlo Park, CA 94025, WOODEN, J.L., Stanford University, Stanford, CA 94305, PREMO, Wayne R., U.S. Geological Survey, Mail Stop 963, Denver Federal Center, Denver, CO 80225, BARNES, Calvin G., Department of Geosciences, Texas Tech University, Box 41053, Lubbock, TX 79409-1053, SNOKE, A.W., Dept. Geology and Geophysics, Univ of Wyoming, Laramie, WY 82071 and LEE, S.Y., CTL Group, 5400 Old Orchard Road, Skokie, IL 60077, khoward@usgs.gov, khoward@usgs.gov
10
10:35 AM
GROWTH OF THE SPIRIT MOUNTAIN BATHOLITH (NEVADA, USA) AS REVEALED BY IN SITU HF ISOTOPES IN ZIRCON
MILLER, Jonathan, Department of Geology, San Jose State University, San Jose, CA 95192-0102, WALKER Jr, B.A., Dept. of Geosciences, Oregon State University, Corvallis, OR 97330, MILLER, C.F., Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, CLAIBORNE, Lily L., Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, DAVIES, G.R., Department of Petrology, VU University Amsterdam, De Boelelaan 1085, Amsterdam, 1081 HV, Netherlands and WOODEN, J.L., Stanford University, Stanford, CA 94305, Jonathan.Miller@sjsu.edu, Jonathan.Miller@sjsu.edu
11
10:50 AM
GROWTH OF PLUTONS BY INCREMENTAL EMPLACEMENT OF SHEETS IN CRYSTAL-RICH HOST: EVIDENCE FROM MIOCENE INTRUSIONS OF THE COLORADO RIVER REGION, NEVADA
MILLER, Calvin F.1, FURBISH, David J.2, WALKER Jr, Barry A.3, CLAIBORNE, Lily L.2, BLEICK, Heather A.4, KOTEAS, G. Christopher5 and MILLER, Jonathan S.6, (1)Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, (2)Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, (3)Geosciences, Oregon State University, Corvallis, OR 97330, (4)USGS, 4200 University Dr, Anchorage, AK 99508, (5)Earth and Environmental Sciences, Norwich University, 158 Harmon Drive, Northfield, VT 05663, (6)Department of Geology, San Jose State University, San Jose, CA 95192-0102, calvin.miller@vanderbilt.edu, calvin.miller@vanderbilt.edu
12
11:10 AM
MELT TRANSFER AND GNEISS DOME EMPLACEMENT DURING OBLIQUE DILATION
MCFADDEN, Rory R.1, TEYSSIER, Christian2, SIDDOWAY, Christine S.3, WHITNEY, Donna L.2 and FANNING, C. Mark4, (1)Geology and Geophysics, University of Minnesota, 310 Pillsbury Drive SE, Minneapolis, MN 55455, (2)Geology & Geophysics, University of Minnesota, Minneapolis, MN 55455, (3)Geology Department, Colorado College, Colorado Springs, CO 80903, (4)Research School of Earth Sciences, Australian National Univ, Canberra, ACT, Australia, rorymcfadden@gmail.com, rorymcfadden@gmail.com
13
11:25 AM
INCREMENTAL PLUTON ASSEMBLY IN THE SCOTTISH LATE CALEDONIAN GRANITES: NEW RESULTS FROM AN INTEGRATED MINERALOGY AND ZIRCON ISOTOPE STUDY
APPLEBY, Sarah K.1, GRAHAM, Colin M.2, GILLESPIE, Martin R.3, HINTON, Richard W.2, OLIVER, Grahame J.H.4 and KELLY, Nigel M.5, (1)Advanced Mineralogy Research Center, Colorado School of Mines, 1310 Maple Street, Golden, CO 80401, (2)Grant Institute of Earth Science, University of Edinburgh, West Mains Road, Edinburgh, EH9 3JW, United Kingdom, (3)Murchison House, British Geological Survey, West Mains Road, Edinburgh, EH9 3LA, United Kingdom, (4)School of Geography & Geosciences, University of St. Andrews, St. Andrews, KY16 9AL, United Kingdom, (5)Geology & Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, sappleby@mines.edu, sappleby@mines.edu
14
11:40 AM
CONSTRAINING THE THICKNESS OF THE CRYSTAL MUSH IN LAYERED MAFIC INTRUSIONS
HOLNESS, Marian B., Dept. Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ, United Kingdom, marian@esc.cam.ac.uk, marian@esc.cam.ac.uk
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