Session: Garnet and Its Use in Unraveling Metamorphic and Tectonic Processes (Poster) (2010 GSA Denver Annual Meeting (31 October

T104. Garnet and Its Use in Unraveling Metamorphic and Tectonic Processes (Poster)

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Structural Geology and Tectonics Division; Mineralogical Society of America

Authors will be present from 2 to 4 PM, and 4:30 to 5:30 PM.

Paper #

Booth #

287

PARTIAL MELTING, COUNTERCLOCKWISE P-T PATH, AND RAPID EXHUMATION ABOVE AN ANCIENT FLAT SLAB: INSIGHTS FROM THE SAN EMIGDIO SCHIST, SOUTHERN CALIFORNIA

CHAPMAN, Alan D., Department of Geosciences, University of Arizona, 1040 E 4th St, Tucson, AZ 85721, LUFFI, Peter I., Department of Earth Science, Rice University, 6100 Main St, Houston, TX 77005, SALEEBY, Jason B., Geological and Planetary Sciences, California Institute of Technology, 1200 E. California Blvd, MC 100-23, Pasadena, CA 91125 and PETERSEN, Sierra, Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, adchapman@email.arizona.edu, adchapman@email.arizona.edu

288

METHODOLOGY FOR DETAILED TRACE ELEMENT MAPPING OF GARNET BY LASER ABLATION ICP-MS: A LOOK AT UNRAVELING ZONING AND INCLUSIONS

KOENIG, Alan E., USGS, Denver Federal Center, MS 973, Denver, CO 80225, akoenig@usgs.gov, akoenig@usgs.gov

289

HOW WELL DOES ZONED GARNET PRESERVE PROGRADE METAMORPHIC CONDITIONS?

CADDICK, Mark J., Institute for Petrology and Geochemistry, ETH Zürich, Clausiusstrasse 25, CH-8092, Zürich, Switzerland, KONOPÁSEK, Jiří, Czech Geological Survey, Klárov 3, 118 21 Praha 1, Prague, Czech Republic and THOMPSON, Alan B., Institute for Petrology and Geochemistry, ETH Zürich, mark.caddick@erdw.ethz.ch, mark.caddick@erdw.ethz.ch

290

EXTRACTING CHANGES IN METAMORPHIC CONDITIONS FROM COMPOSITIONAL ZONING, INCLUSION DISTRIBUTION PATTERNS, AND TEXTURAL CLUES IN GARNET PORPHYROBLASTS FROM GARNET HILL, NORTHWESTERN GEORGIA

HUNT, Lindsey E., Dept. of Geology & Geophysics, Texas A&M University, College Station, TX 77840, BERG, Christopher A., Department of Geosciences, University of West Georgia, 1601 Maple Street, Carrollton, GA 30118 and SKINNER, Tina M., Geosciences, University of West Georgia, Carrollton, GA 30118, lindseyelisehunt@gmail.com, lindseyelisehunt@gmail.com

291

INTRACRYSTALLINE DEFORMATION OF GARNET IN A QUARTZ MATRIX DURING HIGH-STRAIN SHEAR

GOODGE, John W. and BANDLI, Bryan R., Department of Geological Sciences, University of Minnesota, Duluth, MN 55812, jgoodge@d.umn.edu, jgoodge@d.umn.edu

292

GARNET PORPHYOBLASTS AS MARKERS FOR STRAIN PARTITIONING IN THE HANGING-WALL OF A MAJOR OUT-OF-SEQUENCE THRUST

ANDERSON, Mark W., School of Geography, Earth and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, United Kingdom and STOKES, Alison, Experiential Learning Centre for Excellence in Teaching and Learning (CETL), University of Plymouth, 3-15 Endsleigh Place, Drake Circus, Plymouth, PL4 8AA, United Kingdom, manderson@plymouth.ac.uk, manderson@plymouth.ac.uk

293

PRECISE SM-ND AGES FROM LEACHED GARNET: EXAMPLES FROM THE NORTH CASCADES, WASHINGTON AND FIORDLAND, NEW ZEALAND

STOWELL, Harold H., PARKER, Karen A. and GATEWOOD, Mathew, Department of Geological Sciences, Univ of Alabama, Box 870338, Tuscaloosa, AL 35487-0338, hstowell@as.ua.edu, hstowell@as.ua.edu

294

GEOCHRONOLOGY AND MID-TO LOWER CRUSTAL PARTIAL MELTING IN A CRETACEOUS MAGMATIC ARC, FIORDLAND, NEW ZEALAND

PARKER, Karen A.¹, STOWELL, Harold H.² and GATEWOOD, Matthew¹, (1)Department of Geological Sciences, Univ of Alabama, Box 870338, Tuscaloosa, AL 35487-0338, (2)Departnemt of Geological Sciences, The University of Alabama, 201 7th Ave., Bevill Building, Room 202, Tuscaloosa, AL 35487, karenodomparker@gmail.com, karenodomparker@gmail.com

295

WIDESPREAD OXYGEN ISOTOPE DISEQUILIBRIUM IN FRANCISCAN HIGH-GRADE BLOCKS

PINCUS, Maya R.¹, PAGE, F. Zeb¹, SPICUZZA, Michael J.² and VALLEY, John W.², (1)Department of Geology, Oberlin College, 52 West Lorain Street, Oberlin, OH 44074, (2)Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53706, maya.pincus@oberlin.edu, maya.pincus@oberlin.edu

296

THE TECTONIC RECORD PRESERVED IN GROWTH AND DIFFUSION ZONING PATTERNS IN GARNET FROM MIGMATITIC PELITES OF THE EAST HUMBOLDT RANGE, NEVADA

HALLETT, Benjamin W., Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Jonsson-Rowland Science Center, 1W19, 110 8th Street, Troy, NY 12180 and SPEAR, Frank S., Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, halleb3@rpi.edu, halleb3@rpi.edu

297

PRESSURE GRADIENTS IN GARNETS INDUCED BY DIFFUSION RELAXATION OF MAJOR ELEMENT ZONING

BAUMGARTNER, Lukas, Institute of Earth Sciences, University of Lausanne, Lausanne, CH-1015, Switzerland, FLOESS, David, Mineralogy and Geochemistry, University of Lausanne, Lausanne, CH-1015, Switzerland, PODLADTCHIKOV, Yuri, Physics of Geological Processes, University of Oslo, Oslo, 0316, Norway and FOSTER Jr, C.T., Dept. of Earth & Environmental Sciences, University of Iowa, Iowa City, IA 52242, Lukas.Baumgartner@unil.ch, Lukas.Baumgartner@unil.ch

298

GARNET TEXTURES AND DIFFUSION OF BIVALENT CATIONS IN GARNETS IN POLYMETAMORPHIC BASEMENT ROCKS OF THE ADAMELLO CONTACT AUREOLE

FLOESS, David, Earth Sciences, University of Lausanne, Lausanne, CH-1015, Switzerland and BAUMGARTNER, Lukas, Institute of Earth Sciences, University of Lausanne, Lausanne, CH-1015, Switzerland, David.Floess@unil.ch, David.Floess@unil.ch

299

UNDERSTANDING PROGRADE METAMORPHIC PATHS BY COMBINING SM-ND AND LU-HF GEOCHRONOLOGY WITH GARNET REE ZONATIONS AND SIZE DISTRIBUTIONS

SKORA, Susanne, Department of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol, BS8 1RJ, United Kingdom, BAUMGARTNER, Lukas, Institute of Earth Sciences, University of Lausanne, Lausanne, CH-1015, Switzerland, LAPEN, Thomas J., Geosciences, University of Houston, 312 Science and Research 1, University of Houston, Hosuton, TX 77204-5007 and JOHNSON, Clark M., Department of Geoscience, University of Wisconsin-Madison, NASA Astrobiology Institute, 1215 W. Dayton St, Madison, WI 53706, Lukas.Baumgartner@unil.ch, Lukas.Baumgartner@unil.ch

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