GSA Annual Meeting in Indianapolis, Indiana, USA - 2018

Session No. 237
Wednesday, 7 November 2018: 8:00 AM-12:00 PM
Room 240-241 (Indiana Convention Center)

T136. Tick Tock in the Rock: Elucidating the Time Scales of Geologic Processes and Honoring the Contributions of Bruce Watson, 2018 Roebling Medalist

Mineralogical Society of America; Geochemical Society; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Volcanic and Magmatic Studies Group; American Geophysical Union

 

Frederick J. Ryerson, Mark Harrison, Julia E. Hammer, Sumit Chakraborty and Calvin F. Miller, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
8:05 AM
NUCLEATION AND GROWTH OF EARTH'S INNER CORE (Invited Presentation)
HUGUET, Ludovic1, VAN ORMAN, James1, HAUCK II, Steven A.2 and WILLARD, Matthew3, (1)Earth Environmental and Planetary Sciences, Case Western Reserve University, 112 A. W. Smith Building, Cleveland,, OH 44106, (2)Department of Earth, Environmental and Planetary Sciences, Case Western Reserve University, Cleveland, OH 44106, (3)Department of Materials Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106
8:25 AM
MODELING NUCLEATION DELAY IN IGNEOUS SYSTEMS
BAKER, Don R., Earth and Planetary Sciences, McGill, 3450 rue University, Montreal, QC H4A0E8, Canada
8:40 AM
AN EXPERIMENTAL AND ANALYTICAL INVESTIGATION OF CLINOPYROXENE SECTOR ZONING IN TWO HAWAIIAN MAGMAS
CALENTTI, Manlio, Dept. Earth and Oceanographic Science, Bowdoin College, 6800 College Station, Brunswick, OR 04011, HAMMER, Julia E., Dept. Geology and Geophysics, School of Ocean and Earth Sciences, UHM, 1680 East-West Rd, Honolulu, OR 96822, WELSCH, Benoit, Dept. of Earth, Environmental, and Planetary Sciences, Brown University, 324 Brook Street, Providence, OR 02912 and JOHNSTON, A. Dana, Dept. of Earth Sciences, College of Arts and Sciences, University of Oregon, 100 Cascade Hall, 1272 University of Oregon, Eugene, OR 97403-1272
8:55 AM
KINETICS OF MINERAL DISSOLUTION: ROLE OF INTERFACE REACTION, DIFFUSION, AND CONVECTION, AND DEALING WITH DIFFUSION OF ALL COMPONENTS
ZHANG, Youxue and GUO, Chenghuan, Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109
9:10 AM
LIFETIME OF PHASES VS. LIFETIME OF CRYSTALS – AN UPPER LIMIT TO TIMESCALES ACCESSIBLE BY DIFFUSION CHRONOMETRY
CHAKRABORTY, Sumit1, BERKELS, Dennis1 and FOCKENBERG, Thomas2, (1)Institut fuer Geologie, Mineralogie und Geophysik, Ruhr Universitaet Bochum, Universitaetsstrasse 150, Bochum, D-44801, Germany, (2)Institut fuer Geologie, Mineralogie und Geophysik, Ruhr Universitaet Bochum, Universitaetstrasse 150, Bochum, 44801, Germany
9:25 AM
DIFFUSION IN ACCESSORY MINERALS AND CONSTRAINTS ON TIMESCALES OF GEOLOGIC PROCESSES (Invited Presentation)
CHERNIAK, Daniele J., Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Jonsson-Rowland Science Center 1W19, 110 8th Street, Troy, NY 12180-3590
 
9:45 AM
Break
10:00 AM
TIMESCALES AND RATES OF SUBDUCTION CHANNEL PROCESSES: INSIGHTS FROM THE (U)HP TERRANE OF SOUTHEAST PAPUA NEW GUINEA
BALDWIN, Suzanne L., Department of Earth Sciences, Syracuse University, Syracuse, NY 13244
10:15 AM
LI DIFFUSION IN PLAGIOCLASE: A GEOSPEEDOMETER FOR RAPID HEATING EVENTS
HOLYCROSS, Megan, Mineral Sciences, Smithsonian Institution, PO Box 37012, National Museum of Natural History MRC-119, Washington, DC 20013-7012 and WATSON, E. Bruce, Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Jonsson-Rowland Science Center 1W19, 110 8th Street, Troy, NY 12180-3590
10:30 AM
DIFFUSION OF KEY ISOTOPES (PB, PD, AG) IN IRON METEORITES: IMPLICATIONS FOR CLOSURE TEMPERATURES
WATSON, Heather C.1, ZHANG, Zhihai1, CHERNIAK, Daniele J.2, LINARELLI, John1, CLEMENT, Thomas1, VU, John1 and WANG, Sherrie3, (1)Physics and Astronomy, Union College, Schenectady, NY 12308, (2)Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Jonsson-Rowland Science Center 1W19, 110 8th Street, Troy, NY 12180-3590, (3)Emma Willard School, Troy, NY 12180
10:45 AM
INSIGHTS INTO THE MAGMATIC ASCENT RATES OF KIMBERLITES FROM FE-MG INTERDIFFUSION RATES IN ILMENITE
PRISSEL, Kelsey B.1, KRAWCZYNSKI, Michael J.1 and VAN ORMAN, James A.2, (1)Department of Earth and Planetary Sciences, Washington University in St. Louis, 1 Brookings Drive, Campus Box 1169, St. Louis, MO 63130, (2)Earth Environmental and Planetary Sciences, Case Western Reserve University, 112 A. W. Smith Building, Cleveland,, OH 44106
11:00 AM
SOME REMARKS ON THE MULTIPLE TIME SCALES OF DIFFUSION IN MINERALS AND MELTS (Invited Presentation)
LIANG, Yan, Department of Earth, Environmental and Planetary Sciences, Brown University, 324 Brook Street, Providence, RI 02912, CHERNIAK, Daniele J., Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Jonsson-Rowland Science Center 1W19, 110 8th Street, Troy, NY 12180-3590 and SUN, Chenguang, Department of Earth, Environmental and Planetary Sciences, Rice University, Houston, TX 77005
11:20 AM
TRACKING THE ESCALATOR RIDE FROM MID-CRUSTAL DEPTHS TO THE SURFACE: NEW CONSTRAINTS ON THE PACE AND EPISODICITY OF LATE EOCENE TO MIOCENE EXHUMATION FROM THE SOUTHERN EAST HUMBOLDT RANGE METAMORPHIC CORE COMPLEX, ELKO COUNTY, NEVADA
MCGREW, Allen J., Geology Department, The University of Dayton, 300 College Park, Dayton, OH 45469-2364, RODGERS, Amaris, Department of Geology, The University of Dayton, 300 College Park, Dayton, OH 45469-2364, METCALF, James R., Department of Geological Sciences, University of Colorado Boulder, UCB 399, Boulder, CO 80309, MEISNER, Caroline Bruno, Earth and Physical Sciences, Great Basin College, 1500 College Parkway, Elko, NV 89801 and WEBB, Laura E., Geology, University of Vermont, 180 Colchester Ave., Burlington, VT 05405
11:35 AM
U-PB SHRIMP-RG ANALYSIS OF ZIRCON IN MIGMATITIC ROCKS IN THE SOUTHEASTERN PART OF THE NASHOBA TERRANE, EASTERN MASSACHUSETTS
SEVERSON, Allison R., KUIPER, Yvette D. and BUCHANAN II, John Wesley, Department of Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401
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