Session: High-Pressure and High-Temperature Metamorphism: <i>P–T–t</i> Paths and Tectonics (Posters) (2010 GSA Denver Annual Meeting (31 October

T59. High-Pressure and High-Temperature Metamorphism: P–T–t Paths and Tectonics (Posters)

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

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

Paper #

Booth #

259

CHARACTERIZING MELT TEXTURES AND ACCESSORY MINERAL DISTRIBUTION IN MIGMATITES FROM THE LARSEMANN HILLS, EAST ANTARCTICA

MATTHEWS, Jessica A., Geology & Geological Engineering, Colorado School of Mines, Golden, CO 80401 and KELLY, Nigel M., Geology & Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, jematthe@mymail.mines.edu, jematthe@mymail.mines.edu

260

RESOLVING OVERPRINTING EVENTS IN POLYCYCLIC METAMORPHIC TERRAINS – AN EXAMPLE FROM PRYDZ BAY, EAST ANTARCTICA

UNDERWOOD, David F.¹, KELLY, Nigel M.², MATTHEWS, Jessica A.¹ and HARLEY, Simon L.³, (1)Department of Geology & Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, (2)Department of Geology & Geological Engineering, Colorado School of Mines, 1516 Illinois St, Golden, CO 80401, (3)School of Geosciences, University of Edinburgh, West Mains Rd, Kings Buildings, Edinburgh, EH9 3JW, United Kingdom, Toad62@gmail.com, Toad62@gmail.com

261

IDENTIFICATION OF HIGH-PRESSURE GRANULITES IN ULTRA-HIGH-PRESSURE TERRANES THROUGH FIELD OBSERVATIONS AND MINERAL TEXTURES: DULAN, CHINA

CHRISTENSEN, Benjamin D.J., Geological Sciences, Central Washington University, Ellensburg, WA 98926 and MATTINSON, Christopher G., Geological Sciences, Central Washington University, 400 E University Way, MS 7418, Ellensburg, WA 98926, christeb@cwu.edu, christeb@cwu.edu

262

HRTEM CHARACTERIZATION OF SILICEOUS PHASES IN UHP CLINOPYROXENE FROM THE BOHEMIAN MASSIF-CLUES TO ECLOGITE EXHUMATION PATHWAYS AND WATER CONTENT IN MANTLE-DERIVED PYROXENE

HILL, Tina R., Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton Street, Madison, WI 53706, KONISHI, Hiromi, Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton St, Madison, WI 53706 and XU, Huifang, Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton street, Madison, WI 53706, trhill@wisc.edu, trhill@wisc.edu

263

CRUSTAL STACKING AND EXPULSION TECTONICS DURING CONTINENTAL SUBDUCTION: P-T-DEFORMATION CONSTRAINTS FROM OMAN

AGARD, Philippe, Inst. Sc. Terre à Paris (ISTeP), UMR CNRS 7193 Université P.M. Curie, Paris, France, SEARLE, Micheal P., Department of Earth Sciences, Oxford University, Parks Road, Oxford, OX1 3PR, ALSOP, Ian, Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen, AB24 3UE, United Kingdom and DUBACQ, Benoit, Dept. Earth Sciences, Cambridge Univ, Cambridge, CB23EQ, philippe.agard@upmc.fr, philippe.agard@upmc.fr

264

EXHUMATION OF MEDIUM-PRESSURE AMPHIBOLITE WITHIN A HIGH-PRESSURE REGION: THE IZMIR-ANKARA SUTURE, ORHANELI AREA, TURKEY

GARRAFFA, Alfred¹, TERRY, Michael P.², LISENBEE, Alvis L.³ and YILDIZ, Umit³, (1)Geology and Geological Engineering, South Dakota School of Mines and Technology, 501 East Saint Joseph Street, Rapid City, SD 57701, (2)Department of Geology and Geological Engineering, South Dakota School of Mines and Technology, Rapid City, SD 57702, (3)Dept. of Geology and Geological Engineering, South Dakota School of Mines and Technology, 501 E. St. Joseph St, Rapid City, SD 57701, alfred.garraffa@mines.sdsmt.edu, alfred.garraffa@mines.sdsmt.edu

265

DETERMINING THE EXHUMATION HISTORY OF A GIANT UHP TERRANE USING TITANITE GEOCHRONOLOGY, WESTERN GNEISS REGION, NORWAY

SPENCER, Katherine, HACKER, Bradley R., KYLANDER-CLARK, Andrew, COTTLE, John and GINSBURG, Adam, Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106, kspencer@umail.ucsb.edu, kspencer@umail.ucsb.edu

266

INTEGRATED PSEUDOSECTION MODELLING AND LU-HF AND ⁴⁰AR/³⁹AR DATING OF ECLOGITES TO INVESTIGATE THE COHERENCE OF THE DABIE SHAN UHPM TERRANE

BROUWER, Fraukje M.¹, VAN HELDEN, Marcel J.¹, GROEN, Mirek¹, NEBEL, Oliver², WIJBRANS, Jan R.³ and QIU, Huaning⁴, (1)Department of Petrology, FALW, VU University Amsterdam, De Boelelaan 1085, Amsterdam, NL-1081 HV, Netherlands, (2)Research School of Earth Sciences, ANU, Canberra, ACT 0200, Australia, (3)Department of Isotope Geochemistry, FALW, VU University Amsterdam, De Boelelaan 1085, Amsterdam, NL-1081 HV, Netherlands, (4)Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, P.O. BOX 1131, Guangzhou, 510640, China, fraukje.brouwer@falw.vu.nl, fraukje.brouwer@falw.vu.nl

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