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2004 Denver Annual Meeting (November 7–10, 2004)

Session No. 174
Tuesday, 9 November 2004: 1:30 PM-5:30 PM

T83. Cordilleran Arc Magmatism, BATHOLITHS and Continental Crustal Genesis II

GSA Geophysics Division; GSA Structural Geology and Tectonics Division

 

Mihai N. Ducea, Christopher Andronicos and Paul H. Wetmore, Advocates
Paper #
Start Time
 
1:30 PM
Introductory Remarks
1
1:35 PM
TOWARD A NEW PARADIGM FOR GRANITE GENERATION
VIGNERESSE, Jean Louis, CREGU, UMR CNRS 7566 G2R, BP 23, Vandoeuvre-Nancy, F-54501, France, jean-louis.vigneresse@g2r.uhp-nancy.fr, jean-louis.vigneresse@g2r.uhp-nancy.fr
2
1:55 PM
EMPLACEMENT OF THE DEVONIAN RABUN GRANODIORITE, NORTHEAST GEORGIA AND NORTH CAROLINA BLUE RIDGE: DETAILED GEOLOGIC MAPPING, AND STRUCTURAL, AND PETROLOGIC ANALYSIS
STAHR III, Doanld W. and HATCHER Jr, Robert D., Earth and Planetary Sciences, Univ of Tennessee, 306 Earth and Planetary Sciences Bldg, University of Tennessee, Knoxville, TN 37996-1410, dstahr@utk.edu, dstahr@utk.edu
3
2:10 PM
REEXAMINING THE GEOCHEMISTRY AND GEOCHRONOLOGY OF THE LATE CRETACEOUS BOULDER BATHOLITH, MT
JOHNSON, Breck1, IHINGER, Phillip D.2, MAHONEY, J. Brian2 and FRIEDMAN, Richard M.3, (1)Geology, Univ of Wisconsin - Eau Claire, 105 Garfield Ave, Eau Claire, WI 54701, (2)Geology, Univ of Wisconsin - Eau Claire, 105 Garfield Ave, Eau Claire, WI 54701, (3)Pacific Centre for Isotopic and Geochemical Research, Univ of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada, johnsbre@uwec.edu, johnsbre@uwec.edu
4
2:25 PM
RATES AND TEMPO OF GRANITIC MAGMATISM: A U-PB GEOCHRONOLOGICAL INVESTIGATION OF THE DONEGAL BATHOLITH (IRELAND)
CONDON, D.J.1, BOWRING, S.A.1, PITCHER, W.S.2 and HUTTON, D.W.H.3, (1)Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, (2)Professor Emeritus, Earth Sciences, Univ of Liverpool, Liverpool, United Kingdom, (3)Geography, Earth & Environmental Sciences, Birmingham Univ, Birmingham, United Kingdom, dcondon@mit.edu, dcondon@mit.edu
5
2:40 PM
RATES AND MECHANISMS OF MAGMA EMPLACEMENT IN THE USUTU INTRUSIVE SUITE: IMPLICATIONS FOR CA. 3.2 GA ASSEMBLY OF THE KAAPVAAL CRATON
SCHOENE, Blair, Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139 and BOWRING, Samuel, EARTHTIME, 77 Moss Ave, MIT54-1120, Cambridge, MA 02139, schoene@mit.edu, schoene@mit.edu
6
2:55 PM
MAGMA EMPLACEMENT-RELATED STRESS, STRAIN RATE, AND VISCOSITY ESTIMATES FROM A CONTACT AUREOLE
MARKO, Wayne T. and YOSHINOBU, Aaron S., Dept. of Geosciences, Texas Tech Univ, Lubbock, TX 79409-1053, wayne.t.marko@ttu.edu, wayne.t.marko@ttu.edu
7
3:10 PM
TRANSPRESSIONAL MODIFICATION OF A CORDILLERIAN BATHOLITH: MODIFICATION OF THE 87SR/86SR ISOTOPIC TRANSITION IN WESTERN IDAHO
GIORGIS, Scott, Geosciences, SUNY-Geneseo, 1 College Circle, Geneseo, NY 14454, TIKOFF, Basil, Dept. of Geology and Geophysics, Univ of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53706 and MCCLELLAND, William, sdgior@yahoo.com, sdgior@yahoo.com
 
3:25 PM
Break
8
3:40 PM
WHAT IS THE SIGNIFICANCE OF AMS FABRIC IN PLUTONS? INITIAL RESULTS FROM A STUDY OF MAGMATIC FABRIC IN THE CADILLAC MOUNTAIN INTRUSIVE COMPLEX, ACADIA NATIONAL PARK, MAINE
MARKLEY, Michelle J., TYSON, Amanda R., TERRES, Morgan E. and JUDGE, Phoebe A., Earth and Environment, Mount Holyoke College, South Hadley, MA 01075, atyson@mtholyoke.edu, atyson@mtholyoke.edu
9
3:55 PM
TONGUE-LIKE FLOW LOBES IN GRANITE, IDENTIFIED USING MAGNETIC FABRICS, ALLOW DETERMINATION OF FLOW DIRECTION
STEVENSON, Carl T.E.1, HUTTON, Donald W.H.1 and OWENS, William H.2, (1)Department of Earth Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, (2)Department of Earth Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom, cts159@bham.ac.uk, cts159@bham.ac.uk
10
4:10 PM
RELATIONSHIPS BETWEEN SPREADING-RIDGE SUBDUCTION AND THE FLARE-UP IN ARC MAGMATISM IN THE ALASKA-ALEUTIAN BATHOLITH AND THE COAST PLUTONIC COMPLEX
FARRIS, David W.1, BRADLEY, D.2, HAEUSSLER, Peter J.2 and PATERSON, Scott R.1, (1)Dept. of Earth Sciences, Univ of Southern California, 3651 Trousdale Ave, Los Angeles, CA 90089-0740, (2)U.S. Geol Survey, 4200 University Drive, Anchorage, AK 99508, dfarris@earth.usc.edu, dfarris@earth.usc.edu
11
4:25 PM
Withdrawn
12
4:40 PM
PRIMARY AND SECONDARY TITANITE d18O VALUES AS RECORDS OF MAGMATIC AND ALTERATION PROCESSES IN THE SIERRA NEVADA BATHOLITH
LACKEY, Jade Star and VALLEY, John, Department of Geology and Geophysics, Univ of Wisconsin, Madison, WI 53706, jadestar@geology.wisc.edu, jadestar@geology.wisc.edu
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