2009 Portland GSA Annual Meeting (18-21 October 2009)
Session No. 85 Monday, 19 October 2009
8:00 AM-12:00 PM, Oregon Convention Center: E143/144

T82. Advances in Understanding Metamorphic Processes: Nanoscale to Nappes I (Mineralogical Society of America)

C.T. Foster, Frank Spear and John Bowman, Presiding
 Paper #Start Time
85-18:00 AM NUCLEATION OF GARNET PORPHYROBLASTS: CARLSON, William D., Department of Geological Sciences, University of Texas at Austin, 1 University Station C1100, Austin, TX 78712, wcarlson@mail.utexas.edu
85-28:20 AM INITIAL ESTIMATE FOR GARNET NUCLEATION RATE AT TOWNSHEND DAM, VT: WRIGHT, Jennifer B.1, HIRSCH, David M.1, and BAXTER, Ethan F.2, (1) Geology, Western Washington University, 516 High St, Bellingham, WA 98225, jenbwright@gmail.com, (2) Earth Sciences, Boston University, 685 Commonwealth Ave, Boston, MA 02215
85-38:35 AM DISEQUILIBRIUM CRYSTALLIZATION OF GARNET CORES FOLLOWED BY EQUILIBRIUM RIM GROWTH: IMPLICATIONS FOR DETERMINING PRESSURE-TEMPERATURE PATHS, ALBION MOUNTAINS, IDAHO: KELLY, Eric D., Geological Sciences, University of Texas at Austin, 1 University Station C1100, Austin, TX 78712, Eric.Kelly@mail.utexas.edu, HOISCH, Thomas D., Department of Geology, Northern Arizona University, Box 4099, Flagstaff, AZ 86011, and WELLS, Michael L., Dept. of Geoscience, Univ of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, NV 89154-4010
85-48:50 AM DOMAINS OF EQUILIBRATION AMONG LAWSONITE, GARNET, APATITE AND TITANITE IN ECLOGITE DURING FLUID-ROCK INTERACTIONS: INSIGHTS FROM GUATEMALA: SORENSEN, S.S., Mineral Sciences, Smithsonian Institution, PO Box 37012, National Museum of Natural History MRC-119, Washington, DC 20013-7012, sorensen@si.edu, SISSON, Virginia, Department of Earth and Atmospheric Sciences, University of Houston, 4800 Calhoun, Houston, TX 77204, and HARLOW, George E., Earth and Planetary Sciences, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024-5192
85-59:05 AM LAWSONITE PORPHYROBLAST TEXTURES AS INDICATORS OF METAMORPHIC AND DEFORMATION CONDITIONS IN A SUBDUCTION ZONE: WHITNEY, Donna L.1, TEYSSIER, Christian1, TORAMAN, Erkan2, and SEATON, Nicholas C.1, (1) Geology & Geophysics, University of Minnesota, Minneapolis, MN 55455, dwhitney@umn.edu, (2) Earth Sciences, University of Minnesota, Minneapolis, MN 55455
85-69:20 AM PRESSURE-TEMPERATURE-REACTION AFFINITY MAPS AS A MEANS TO PREDICT METAMORPHIC REACTION OVERSTEPPING: PATTISON, David R.M., Department of Geoscience, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada, pattison@ucalgary.ca, DE CAPITANI, Christian, Department of Geosciences, University of Basel, Bernoullistrasse 30, Basel, CH-4056, Switzerland, and GAIDIES, Fred, Department of Earth Sciences, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
85-79:35 AM USING CALCULATED CHEMICAL POTENTIAL RELATIONSHIPS TO ACCOUNT FOR CORONA AND SYMPLECTITE TEXTURES IN GRANULITES: BALDWIN, Julia A., Department of Geosciences, University of Montana, Missoula, MT 59812, jbaldwin@mso.umt.edu and POWELL, Roger, School of Earth Sciences, University of Melbourne, Melbourne, 3010, Australia
 9:50 AM Break
85-810:05 AM FLUID FLOW DIRECTIONS AND FLUXES IN COLLISIONAL OROGENS: LYUBETSKAYA, Tanya and AGUE, Jay J., Department of Geology and Geophysics, Yale University, PO Box 208109, New Haven, CT 06520-8109, jay.ague@yale.edu
85-910:25 AM DETERMINING DEFORMATION TEMPERATURES OF A NATURAL SHEAR ZONE: NADIN, Elisabeth S., Department of Geology and Geophysics, University of Alaska Fairbanks, Fairbanks, AK 99775, enadin@gmail.com and HIRTH, Greg, Geological Sciences, Brown University, Box 1846, 324 Brook St, Providence, RI 02912
85-1010:40 AM HP/UHP FLUIDS PRESERVED IN MN-RICH GARNETS FROM LAGO DI CIGNANA, ITALY: HAWKINS, Amber T.1, SELVERSTONE, Jane1, KING, Penelope L.2, and FREZZOTTI, Maria Luce3, (1) Earth & Planetary Sciences, University of New Mexico, MSC03-2040, Albuquerque, NM 87131-0001, ahawkins@unm.edu, (2) Institute of Meteoritics, University of New Mexico, MSC03-2050, Albuquerque, NM 87131, (3) Scienze della Terra, Univ di Siena, Via Laterina 8, Siena, I-53100, Italy
85-1110:55 AM INFLUENCE OF SALINITY ON T-X(CO2) STABILITY OF TALC AND THE POSSIBLE ROLE OF FLUID IMMISCIBILITY IN DEVELOPMENT OF THE TALC ZONE, OUTER ALTA AUREOLE, UTAH: MCLIN, Kristie S. and BOWMAN, John R., Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112, kritter@nmt.edu
85-1211:10 AM ION MICROPROBE STUDY OF THE REDISTRIBUTION OF CARBON AND OXYGEN ISOTOPES AMONG MINERALS DURING METAMORPHIC INFILTRATION-DRIVEN DECARBONATION REACTIONS: FERRY, John M.1, USHIKUBO, Takayuki2, KITA, Noriko T.3, and VALLEY, John W.3, (1) Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD 21093, jferry@jhu.edu, (2) Department of Geoscience, University of Wisconsin, 1215 West Dayton Street, Madison, WI 53706, (3) Geology and Geophysics, University of Wisconsin, 1215 West Dayton Street, Madison, WI 53706
85-1311:25 AM THE UTILITY OF OXYGEN ISOTOPES FOR OUR UNDERSTANDING OF DEEP CRUSTAL PROCESSES PRELIMINARY RESULTS FROM ZIRCON AND GARNET IN MIGMATITES: KELLY, Nigel M., Geology & Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, nkelly@mines.edu, HARLEY, Simon L., School of Geosciences, University of Edinburgh, West Mains Rd, Kings Buildings, Edinburgh, EH9 3JW, United Kingdom, and APPLEBY, Sarah K., Advanced Mineralogy Research Center, Colorado School of Mines, 1310 Maple Street, Golden, CO 80401

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