Paper #

Start Time

89-89-1

8:00 AM

RELAMINATION AND THE DIFFERENTIATION OF CONTINENTAL CRUST

HACKER, Bradley R., Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106, hacker@geol.ucsb.edu, KELEMEN, Peter, Lamont Doherty Earth Observatory, Columbia University, Palisades, NY 10964, and BEHN, Mark, Department of Geology and Geophysics, Woods Hole Oceanographic Institution, 360 Woods Hole Road, Mail Stop 22, Woods Hole, MA 02543

89-89-2

8:15 AM

TESTING THE RELAMINATION HYPOTHESIS IN EXHUMED CORDILLERAN SHALLOW SUBDUCTION COMPLEXES: A CALL TO ARMS

CHAPMAN, Alan D., Geological Sciences and Engineering, Missouri University of Science and Technology, 129 McNutt Hall, Rolla, MO 65409, chapmanad@mst.edu

89-89-3

8:30 AM

EPISODIC MAGMATISM IN THE MESOZOIC SIERRA NEVADA ARC: MAGMA ADDITION RATES AND PLUTONIC/VOLCANIC VOLUME RATIOS

PATERSON, Scott R., Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Zumberge Hall of Science (ZHS), Los Angeles, CA 90089-0740, paterson@usc.edu and CAO, Wenrong, Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740

89-89-4

8:45 AM

AN ISOSTASTIC AND MASS BALANCE MODEL OF THE MESOZOIC SIERRA NEVADA ARC DURING TECTONIC THICKENING AND MAGMATIC FLARE-UPS: IMPLICATIONS FOR SURFACE UPLIFT, EXHUMATION AND MATERIAL TRANSFER

CAO, Wenrong¹, PATERSON, Scott¹, and LEE, Cin-Ty A.², (1) Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, wenrongc@usc.edu, (2) Dept of Earth Science, Rice Univ, MS 126, 6100 Main St, Houston, TX 77005

89-5

SR-ND-PB ISOTOPIC CONSTRAINTS ON THE ORIGIN AND TECTONOMAGMATIC EVOLUTION OF THE KARAJ DAM BASEMENT SILL: IMPLICATION OF MIDDLE TO LATE EOCENE LITHOSPHERIC THINING IN SOUTH-CENTRAL ALBORZ (Withdrawn)

89-89-6

9:15 AM

THE WESTERN MARGIN OF THE SIERRA NEVADA BATHOLITH (SNB) AS RECORDED IN THE CALIFORNIA GREAT VALLEY SUBSURFACE: STRUCTURE, COMPOSITION AND MAGMATIC SOURCE REGIME

SALEEBY, Jason B., Division of Geological and Planetary Sciences, California Institute Technology, Pasadena, CA 91125-0001, jason@gps.caltech.edu

89-89-7

9:30 AM

MAGNETIC SUSCEPTIBILITY OF GRANITOIDS: DEVELOPING NEW, QUANTITATIVE INTERPRETATIONS

RAUB, Timothy D., Department of Earth and Environmental Sciences, University of St. Andrews, Irvine Building, North Street, St. Andrews KY16 9AL United Kingdom, timraub@st-andrews.ac.uk

9:45 AM

Break

89-89-8

10:00 AM

DEVELOPMENT OF JURASSIC ARC COMPLEXES IN THE KLAMATH MOUNTAIN PROVINCE, CA AND OR

BARNES, Calvin G.¹, WEISS, Rachel B.², COINT, Nolwenn³, YOSHINOBU, Aaron S.¹, and FROST, Carol D.⁴, (1) Department of Geosciences, Texas Tech University, Lubbock, TX 79409-1053, cal.barnes@ttu.edu, (2) Department of Geosciences, Texas Tech University, 2617 28th st, Lubbock, TX 79410, (3) Norwegian Geological Survey, P.O. box 6315, Sluppen, Trondheim, NO-7491, Norway, (4) Department of Geology and Geophysics, University of Wyoming, Dept. 3006, 1000 University Avenue, Laramie, WY 82071

89-89-9

10:15 AM

COEVAL ALKALINE AND SUBALKALINE MAGMATISM IN A CONTINENTAL ARC: GEOCHEMICAL AND ISOTOPIC INSIGHTS ON CONTRASTING MAGMA SOURCES IN THE ROSS OROGEN, ANTARCTICA

HAGEN-PETER, Graham A., Department of Earth Science, University of California, Santa Barbara, 1006 Webb Hall-MC 9630, Santa Barbara, CA 93106-9630, ghagenpeter@umail.ucsb.edu and COTTLE, John M., Department of Earth Science, University of California, Santa Barbara, CA 93106

89-89-10

10:30 AM

U-PB, O AND HF ISOTOPE EVIDENCE OF DURATION, SOURCES AND CRUSTAL SIGNATURES DURING GRANITE BATHOLITH MAGMATISM IN THE ROSS OROGEN, ANTARCTICA

GOODGE, John W.¹, FANNING, C. Mark², FISHER, Christopher M.³, VERVOORT, Jeffrey D.³, and BUSCHETTE, Michael J.¹, (1) Department of Earth & Environmental Sciences, University of Minnesota, Duluth, MN 55812, jgoodge@d.umn.edu, (2) Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia, (3) School of the Environment, Washington State University, Pullman, WA 99164

89-89-11

10:45 AM

THE TEMPO OF CONTINENTAL MARGIN ARC CONSTRUCTION AND EXTENSIONAL OROGENIC COLLAPSE: A DEEP-CRUSTAL PERSPECTIVE FROM FIORDLAND, NEW ZEALAND

SCHWARTZ, Joshua J.¹, STOWELL, Harold H.², KLEPEIS, Keith A.³, TULLOCH, Andy⁴, COBLE, Matthew A.⁵, KYLANDER-CLARK, Andrew⁶, and HACKER, Brad⁶, (1) Department of Geological Sciences, California State University Northridge, 18111 Nordhoff Street, Northridge, CA 91330, joshua.schwartz@csun.edu, (2) Department of Geological Sciences, University of Alabama, Tuscaloosa, AL 35487, (3) Geology, University of Vermont, Trinity Campus, Burlington, VT 05405, (4) GNS Science, Dunedin, 1930, New Zealand, (5) Department of Geological and Environmental Sciences, Stanford University, 450 Serra Mall, Building 320, Stanford, CA 94305, (6) Geological Sciences, UC, Santa Barbara, Department of Geological Sciences, UC Santa Barbara—Building 526, Santa Barbara, CA 93106-9630

89-89-12

11:00 AM

TRACKING THE INFLUENCE OF CRUSTAL CONTRIBUTIONS TO THE DEEP ROOT OF A CONTINENTAL ARC, FIORDLAND, NEW ZEALAND

WIESENFELD, John A.¹, SCHWARTZ, Joshua J.¹, STOWELL, Harold H.², SADORSKI, Joseph Frank¹, BURGH, Kyzara¹, KLEPEIS, Keith A.³, and TULLOCH, Andy⁴, (1) Department of Geological Sciences, California State University Northridge, 18111 Nordhoff Street, Northridge, CA 91330, john.wiesenfeld.75@my.csun.edu, (2) Department of Geological Sciences, University of Alabama, Tuscaloosa, AL 35487, (3) Geology, University of Vermont, Trinity Campus, Delehanty Hall, 180 Colchester Ave, Burlington, VT 05405, (4) GNS Science, Dunedin, 1930, New Zealand

89-89-13

11:15 AM

70 MA OF ARC EVOLUTION IN PANAMA: THE INFLUENCE OF TECTONIC FORCING DURING THE TRANSITION FROM AN INTRA-OCEANIC TO A CONTINENTAL ARC

FARRIS, David W., Earth, Ocean and Atmospheric Sciences, Florida State University, 909 Antarctic Way, Carraway Building, Tallahassee, FL 32306-4100, dwfarris@fsu.edu

89-89-14

11:30 AM

TECTONIC CONTROL ON THE EMPLACEMENT OF CRETACEOUS TO PALEOGENE GRANITIC BATHOLITHS IN THE SOUTHWESTERN JAPAN ARC

TAKAGI, Tetsuichi, Institute for Geo-Resources and Environment, National Institute of Advanced Industrial Sci and Technology, Central-7, 1-1-1 Higashi, Tsukuba 305-8567 Japan, takagi-t@aist.go.jp

89-89-15

11:45 AM

THE INTRA-OCEANIC ALEUTIAN, MARIANA, AND TONGA SUBDUCTION ZONES FORMED SEPARATELY BUT SINCE INCEPTION AT ~45-55 MA BUILT AT HIGH PRODUCTION RATES VOLUMETRICALLY SIMILAR AND LARGE ARC MASSIFS—WHY?

SCHOLL, David, Geology and Geophysics, University of Alaska Fairbanks and U.S. Geological Survey, 345 Middlefield Rd, MS 999, Menlo Park, CA 94025, dscholl@usgs.gov and STERN, Robert, Geosciences Department, University of Texas at Dallas, Box 830688, 800 W. Campbell Rd, Richardson, TX 75080