Cordilleran Section - 103rd Annual Meeting (4–6 May 2007)

Session No. 12
Saturday, 5 May 2007: 8:00 AM-12:00 PM

T12. Crustal Differentiation Processes, Timescales and Products in the North American Cordillera

 

Paul Hoskin, Advocates
Paper #
Start Time
1
8:00 AM
INSIGHTS INTO CRUSTAL PROCESSES WITHIN ARCS FROM GRANITOID ROCKS
WHALEN, Joseph B., Geological Survey of Canada, Natural Resources Canada, 601 Booth Street, Ottawa, ON K1A 0E8, Canada, jwhalen@nrcan.gc.ca, jwhalen@nrcan.gc.ca
2
8:20 AM
ZIRCON GROWTH AND RECYCLING DURING THE ASSEMBLY OF THE TUOLUMNE BATHOLITH, SIERRA NEVADA, CA
MATZEL, Jennifer1, MILLER, Jonathan2, MUNDIL, Roland1, WOODEN, Joseph3, MAZDAB, Frank3, PATERSON, Scott R.4 and MEMETI, Valbone4, (1)Berkeley Geochronology Ctr, 2455 Ridge Rd, Berkeley, CA 94709-1211, (2)Department of Geology, San Jose State Univ, San Jose, CA 95192-0102, (3)USGS-Stanford Ion Microprobe Facility, Green Building, Rm 89, 367 Panama Street, Stanford, CA 94305-2220, (4)Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089, jmatzel@bgc.org, jmatzel@bgc.org
3
8:40 AM
FACING UP TO THE COMPLEXITY OF BATHOLITH CONSTRUCTION: MAGMATIC LOBES AS WINDOWS INTO LARGE MAGMA CHAMBERS, TUOLUMNE BATHOLITH, SIERRA NEVADA, CALIFORNIA
MEMETI, Vali1, PATERSON, Scott1, MATZEL, Jennifer2, MUNDIL, Roland2, ECONOMOS, Rita1, DUCEA, Mihai3, MILLER, Jonathan4 and OKAYA, David5, (1)Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, (2)Berkeley Geochronology Ctr, 2455 Ridge Rd, Berkeley, CA 94709-1211, (3)Geosciences, Univ of Arizona, Tucson, AZ 85721, (4)Department of Geology, San Jose State Univ, San Jose, CA 95192-0102, (5)Dept. Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, memeti@usc.edu, memeti@usc.edu
4
9:00 AM
FACING UP TO THE COMPLEXITY OF BATHOLITH CONSTRUCTION: USING THE TUOLUMNE BATHOLITH (TB), SIERRA NEVADA, CALIFORNIA AS AN EXAMPLE
PATERSON, Scott1, MEMETI, Vali1, ZAK, Jiri2, MATZEL, Jennifer3, MUNDIL, Roland3, MILLER, Jonathan4, MILLER, Robert4, BURGESS, Seth4, ECONOMOS, Rita1 and ANDERSON, J. Lawford1, (1)Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, (2)Department of Geology, Faculty of Science, Charles Univ, Czech Republic, Prague, (3)Berkeley Geochronology Ctr, 2455 Ridge Rd, Berkeley, CA 94709-1211, (4)Department of Geology, San Jose State Univ, San Jose, CA 95192-0102, paterson@usc.edu, paterson@usc.edu
 
9:40 AM
Break
5
10:00 AM
AN UPPER CRETACEOUS COMPOSITIONALLY ZONED INTRUSION IN THE SHAWAVE AND NIGHTINGALE RANGES, PERSHING COUNTY, NEVADA
VAN BUER, Nicholas J., Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305 and WOODEN, Joseph L., USGS-SUMAC, Rm. 89, Ion Probe Lab, Green Building, 367 Panama Street, Stanford, CA 94305, vanbuer@pangea.stanford.edu, vanbuer@pangea.stanford.edu
6
10:20 AM
DECIPHERING MAFIC ENCLAVES – WHAT CAN THEY TELL US ABOUT THE TIMING AND NATURE OF BASALTIC INPUTS INTO GRANITOID MAGMA SYSTEMS?
TEPPER, Jeffrey H., Geology Department, University of Puget Sound, 1500 N. Warner, Tacoma, WA 98416-1048 and KUEHNER, Scott, Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, jtepper@ups.edu, jtepper@ups.edu
7
10:40 AM
EXPERIMENTAL STUDY OF CALC-ALKALINE ANDESITE DIFFERENTIATION AT MOUNT RAINIER, WASHINGTON
SISSON, Thomas W. and HANKINS, W. Ben, Volcano Hazards, USGS, 345 Middlefield Road, Menlo Park, CA 94025, tsisson@usgs.gov, tsisson@usgs.gov
8
11:00 AM
ISOTOPIC EVIDENCE OF A NEAR SURFACE HISTORY FOR THE SOURCE ROCKS OF THE CENTRAL COAST MOUNTAINS BATHOLITH, BRITISH COLUMBIA
WETMORE, Paul H., Department of Geology, University of South Florida, 4202 E. Fowler Ave, SCA 528, Tampa, FL 33620, DUCEA, Mihai N., Department of Geosciences, University of Arizona, Gould-Simpson Bldg, Tucson, AZ 85721-0077, STAIR, Kelley N., Geosciences, University of Arizona, Tucson, AZ 85721, KAYZAR, Theresa, Geosciences, Univ of Arizona, 1040 E. Fourth St, Gould-Simpson Bldg, Tucson, AZ 85721 and BARTON, Mark, Center for Mineral Resources, Dept. of Geosciences, University of Arizona, Tucson, AZ 85721-0077, pwetmore@cas.usf.edu, pwetmore@cas.usf.edu
9
11:20 AM
BONANZA ARC CRUSTAL SECTION EXPOSED ON SOUTHERN VANCOUVER ISLAND, B.C.: TALKEETNA SOUTH?
LAROCQUE, Jeff, School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8W 3P6, Canada and CANIL, Dante, Victoria, BC V8W 3P2, Canada, larocque@uvic.ca, larocque@uvic.ca
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