2015 GSA Annual Meeting in Baltimore, Maryland, USA (1-4 November 2015)

Session No. 168
Monday, 2 November 2015: 1:30 PM-5:30 PM
Room 341 (Baltimore Convention Center)

T168. Subduction, Fluids, Accessory Minerals, and Trace Elements: A Celebration of Sorena Sorensen's Career

Mineralogical Society of America; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Geochemical Society
Barbara L. Dutrow, Sarah Penniston-Dorland and Virginia Sisson, Session Chairs
Paper #
Start Time
 
1:30 PM
Introductory Remarks
1:45 PM
METAMORPHISM AND FLUID-MEDIATED MASS TRANSFER IN SUBDUCTION ZONES AS RECORDED BY SORENA SORENSEN’S COOL MINERALS
PEACOCK, Simon M., Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, 2178-2207 Main Mall, Vancouver, BC V6T1Z4, Canada, simon.peacock@ubc.ca
2:00 PM
TIMING SUBDUCTION PROCESSES VIA IN SITU (IN THIN SECTION) ZIRCON AND BADDELEYITE GEOCHRONOLOGY: EXAMPLES FROM NORTHERN TURKEY
CATLOS, Elizabeth J. and SHIN, Timothy A., Geological Sciences, University of Texas at Austin, Jackson School of Geosciences, Austin, TX 78712, ejcatlos@gmail.com
2:15 PM
OROCOPIA SCHIST AT CEMETERY RIDGE, ARIZONA: A TYPE EXPOSURE OF SUBUCTED ROCKS ACCRETED DURING LARAMIDE FLAT SUBDUCTION, THEN INCORPORATED INTO A MIOCENE CORDILLERAN CORE COMPLEX
JACOBSON, Carl E., Iowa State University, Ames, IA 50011, HOURIGAN, Jeremy, Earth and Planetary Sciences, University California Santa Cruz, Santa Cruz, CA 94305, HAXEL, Gordon B., U.S. Geological Survey, Flagstaff, AZ 86001, GROVE, Marty J., Geological Sciences, Stanford University, Stanford, CA 94305 and HOYT, John J., Geological and Atmospheric Sciences, Iowa State University, Ames, IA 50011-3212, cejac@iastate.edu
2:30 PM
BLUESCHIST BLOCKS IN THE SHALE-MATRIX MELANGE AT SAN SIMEON, CALIFORNIA: METAMORPHISM, DEFORMATION, AGE
CLOOS, Mark, Dept. Geological Sciences, University of Texas at Austin, Austin, TX 78712 and UKAR, Estibalitz, Bureau of Economic Geology, University of Texas at Austin, Austin, TX 78713, cloos@jsg.utexas.edu
2:45 PM
A SUBDUCTION FLUID RECORD FROM CORRELATED OXYGEN ISOTOPE AND TRACE ELEMENT ANALYSIS OF RUTILE AND SPHENE FROM GARNET-BEARING TECTONIC BLOCKS IN THE FRANCISCAN COMPLEX, CALIFORNIA, USA
PAGE, F. Zeb1, STOREY, Craig2 and LASALLE, Stephanie2, (1)Department of Geology, Oberlin College, 52 West Lorain Street, Oberlin, OH 44074; School of Earth and Environmental Science, University of Portsmouth, Burnaby Building, Burnaby Road, Portsmouth, PO1 3QL, United Kingdom, (2)School of Earth and Environmental Science, University of Portsmouth, Burnaby Building, Burnaby Road, Portsmouth, PO1 3QL, United Kingdom, zeb.page@oberlin.edu
3:00 PM
ZIRCON/FLUID TRACE ELEMENT PARTITION COEFFICIENTS MEASURED BY RECRYSTALLIZATION OF MUD TANK ZIRCON AT 1.5 GPA AND 800-1000°C
AYERS, John C., Earth & Environmental Sciences, Vanderbilt University, PMB 351805, 2301 Vanderbilt Pl, Nashville, TN 37235-1805 and PETERS, Timothy, Earth & Environmental Sciences, Vanderbilt University, PMB 351805, 2301 Vanderbilt Pl., Nashville, TN 37235-1805, john.c.ayers@vanderbilt.edu
3:15 PM
A (VERY) BRIEF HISTORY OF SUBDUCTION: INSIGHTS FROM THERMODYNAMIC AND GEODYNAMIC MODELS
DRAGOVIC, Besim, Geosciences, Virginia Polytechnic Institute and State University, 4044 Derring Hall, Blacksburg, VA 24061 and CADDICK, Mark J., Department of Geosciences, Virginia Polytechnic Institute and State University, 4044 Derring Hall, Blacksburg, VA 24061, dragovic@vt.edu
3:30 PM
CHAROITE, CHAROITITES AND ASSOCIATED MINERALS: THE PRODUCTS OF INTENSE METASOMATIC ACTIVITY
DUTROW, Barbara L., Dept. of Geology & Geophysics, Louisiana State University, Baton Rouge, LA 70803-4101 and HENRY, Darrell J., Dept. of Geology and Geophysics, Louisiana State University, Baton Rouge, LA 70803, dutrow@lsu.edu
3:45 PM
SUBDUCTION ZONE FLUID CRYSTALLIZATION PRODUCTS—THE PERSPECTIVE FROM JADEITITE RESEARCH
HARLOW, George E., Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, gharlow@amnh.org
4:00 PM
VARIATIONS IN BRUCITE COMPOSITION AND ABUNDANCE IN COMPOSITIONAL DOMAINS IN A SERPENTINIZED HARZBURGITE
BEARD, James, Virginia Museum of Natural History, 21 Starling Ave, Martinsville, VA 24112, SCHWARZENBACH, Esther M., Department of Geosciences, Virginia Polytechnic Institute and State University, 4044 Derring Hall, Blacksburg, VA 24061, BODNAR, R.J., Department of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061 and CADDICK, M.J., Dept. of Geosciences, Virginia Tech, Blacksburg, VA 24061, jim.beard@vmnh.virginia.gov
4:15 PM
OS-ISOTOPE AND HIGHLY SIDEROPHILE ELEMENT EVIDENCE FOR THE ORIGIN OF SERPENTINITES FROM THE MOTAGUA (GUATEMALA) SUTURE ZONE
BURTON, Daniel D.1, SISSON, Virginia2, BRANDON, Alan1, NELSON, Wendy3, HARLOW, George E.4 and BRUECKNER, Hannes K.5, (1)Earth and Atmospheric Sciences, University of Houston, Houston, TX 77005, (2)Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77005, (3)Physics, Astronomy and Geosciences, Towson University, 8000 York Rd, Towson, MD 21252, (4)Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, (5)Lamont–Doherty Earth Observatory, Columbia University, 61 Route 9W, Palisades, NY 10964, j_sisson@netzero.com
4:30 PM
BORON ISOTOPES DISCRIMINATION FOR SUBDUCTION-RELATED SERPENTINITES: EXAMPLE OF THE GUATEMALA SUTURE ZONE
MARTIN, Celine, Earth and Planetary Sciences, American Museum of Natural History, Central park West@ 79st Street, New York, NY 10024, FLORES, Kennet E., Department of Earth and Environmental Sciences, Brooklyn College, New York, NY 11210; Department of Earth and Planetary Science, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024-519 and HARLOW, George E., Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, cmartin@amnh.org
4:45 PM
CHLORINE IN HIGH-GRADE IRON FORMATION “HYDROUS” MINERALS – INTERPLAY AMONG TEMPERATURE, PRESSURE, CRYSTAL CHEMISTRY AND METAMORPHIC FLUID
HENRY, Darrell J., Dept. of Geology and Geophysics, Louisiana State University, Baton Rouge, LA 70803, DAIGLE, Nicholas M., Dept. of Geology & Geophysics, Louisiana State University, Baton Rouge, LA 70803, MUELLER, Paul A., Department of Geological Sciences, University of Florida, 241 Williamson Hall, Gainesville, FL 32611 and MOGK, David W., Dept. of Earth Sciences, Montana State University, PO Box 173480, Bozeman, MT 59717, glhenr@lsu.edu
5:00 PM
NEAR-PRIMARY MANTLE MELTS AND THEIR IMPLICATIONS FOR THE MECHANISM OF ISLAND ARC BASALT OXIDATION
GENTES, Zoe, Graduate School of Oceanography, University of Rhode Island, 215 S Ferry Rd, Narragansett, RI 02882, zoegentes@gmail.com
5:15 PM
PRECAMBRIAN PLATE-TECTONIC EVOLUTION: BOTTOM-UP AND TOP-DOWN MANTLE CIRCULATION
ERNST, W.G., Department of Geological Sciences, Stanford University, Stanford, CA 94305-2115, SLEEP, Norman H., Geophysics, Stanford University, 397 Panama Mall, Stanford, CA 94305 and TSUJIMORI, Tatsuki, Center for Northeast Asian Studies, Tohoku University, Miyagi, Sendai, 980-8576,, Japan, wernst@stanford.edu
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