GSA Annual Meeting in Phoenix, Arizona, USA - 2019

Session No. 214
Tuesday, 24 September 2019: 1:30 PM-5:30 PM
Room 126ABC, North Building (Phoenix Convention Center)

T19. Subduction Zone Systems: Geochemical, Petrochronological, and Geophysical Constraints on Lithospheric Structure, Composition, and Geodynamics

GSA Structural Geology and Tectonics Division; GSA Geophysics and Geodynamics Division

 

Antoine Triantafyllou, Mihai N. Ducea, Jonathan R. Delph and Mark K. Reagan, Advocates
Paper #
Start Time
 
1:30 PM
Introductory Remarks
1:35 PM
MESOZOIC SPATIOTEMPORAL EVOLUTION OF THE CENTRAL SIERRA NEVADA ARC LITHOSPHERE: INVESTIGATING MAGMATIC RECORDS OF DYNAMIC CONTINENTAL ARC ACTIVITY (Invited Presentation)
ARDILL, Katie E.1, PATERSON, Scott R.1, ATTIA, Snir1, BORSOOK, Ariel2 and MEMETI, Vali3, (1)Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740, (2)Department of Earth Sciences, University of Southern California, Zumberge Hall of Science (ZHS), 3651 Trousdale Pkwy, Los Angeles, CA 90089, (3)Department of Geological Sciences, California State University, Fullerton, 800 N State College Blvd., Fullerton, CA 92831-3599
1:50 PM
FLARE-UP WITHOUT A CAUSE: THE BEAR VALLEY INTRUSIVE SUITE, SIERRA NEVADA, CALIFORNIA
KLEIN, Benjamin Z., Department of Earth and Environmental Sciences, Boston College, Devlin Hall, Chestnut Hill, MA 02467, JAGOUTZ, Oliver, Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 54-1212, Cambridge, MA 02139 and RAMEZANI, Jahandar, Dept. of Earth, Atmospheric & Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139
2:05 PM
LOWER-PLATE CONTROLS ON MAGMATIC TEMPOS IN THE ZEALANDIA CORDILLERA
SCHWARTZ, Joshua J.1, RINGWOOD, Mary1, TURNBULL, Rose2 and TULLOCH, Andrew J.3, (1)Department of Geological Sciences, California State University Northridge, 18111 Nordhoff St., Northridge, CA 91330, (2)GNS Science, Dunedin Research Centre, Private Bag 1930, Dunedin, 9054, New Zealand, (3)Institute of Geol & Nuclear Sciences, 764 Cumberland St, Dunedin, New Zealand
2:20 PM
ZIRCON PETROCHRONOLOGY: GRANITOID MELTING CONDITIONS AND CONTINENTAL EVOLUTION
DUCEA, Mihai N., Department of Geosciences, University of Arizona, Tucson, AZ 85721; Faculty of Geology and Geophysics, University of Bucharest, Bucharest, 011004, Romania, BALICA, Constantin, Faculty of Biology and Geology, Babes-Bolyai University, Cluj Napoca, 000010, Romania and GEHRELS, George, Dept. of Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, AZ 85721
2:35 PM
EVIDENCE FOR THE INITIATION OF THE NEVADAN OROGENY FROM PARTIAL MELTING OF RATTLESNAKE CREEK AMPHIBOLITE, KLAMATH MOUNTAINS
DAILEY, Shane R.1, BARNES, Calvin G.1, LEIB, Susan E.1 and SCHOENE, Blair2, (1)Department of Geosciences, Texas Tech University, Lubbock, TX 79409-1053, (2)Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544
Handouts
  • Dailey_RCT ages_24Sep19.pptx (21.5 MB)
  • 2:50 PM
    ASSESSING THE ROLE OF WATER IN ALASKAN FLAT-SLAB SUBDUCTION USING THERMAL AND PHASE EQUILIBRIA MODELING APPROACHES
    ROBINSON, Sarah E., School of Earth and Sustainability, Northern Arizona University, Flagstaff, AZ 86004, HOISCH, Thomas D., School of Earth & Sustainability, Northern Arizona University, P.O. Box 4099, Flagstaff, AZ 86011 and PORTER, Ryan C., School of Earth Sciences and Environmental Sustainability, Northern Arizona University, PO Box 4099, Flagstaff, AZ 86011-4099
     
    3:05 PM
    Lightning Posters
     
    3:15 PM
    Break
    3:30 PM
    INTEGRATING PETROCHRONOLOGIC AND GEOPHYSICAL VIEWS OF RHYOLITE DYNAMICS IN THE LAGUNA DEL MAULE MAGMA SYSTEM, SOUTHERN ANDES (Invited Presentation)
    SINGER, Brad S., Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706 and LAGUNA DEL MAULE, IES Research Team, Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53706
    3:45 PM
    MID-CRETACEOUS CLOSURE OF A MARGINAL SEAWAY BY WESTWARD SUBDUCTION AND MANTLE ORIGIN OF POST-COLLISIONAL SLAB FAILURE PLUTONIC SUITES IN THE NORTH AMERICAN CORDILLERA
    HILDEBRAND, Robert S., 1401 N. Camino de Juan, Tucson, AZ 85745 and WHALEN, Joseph B., Geological Survey of Canada, 601 Booth Street, Ottawa, ON K1A 0E8, Canada
    214-9
    4:00 PM
    Withdrawn
    4:15 PM
    RESOLVING THE GEODYNAMIC EFFECTS OF SPREADING RIDGE SUBDUCTION IN THE PATAGONIAN ANDES USING MULTICHRONOMETER THERMOCHRONOLOGY
    STEVENS GODDARD, Andrea, Department of Geology, Rowan University, Glassboro, NJ 08028 and FOSDICK, Julie C., Geosciences, University of Connecticut, 354 Mansfield Road, U-1045, Storrs, CT 06269
    4:30 PM
    SUBDUCTION INITIATION TERRANES IN THE GEOLOGICAL RECORD
    REAGAN, Mark K., Earth and Environmental Sciences, University of Iowa, Iowa City, IA 52242 and PEARCE, Julian A., Cardiff University, School of Earth and Ocean Sciences, Park Place, Cardiff, CF10 3AT, United Kingdom
    4:45 PM
    SUBDUCTION INITIATION PERIDOTITES OF THE WESTERN PACIFIC AND IMPLICATIONS FOR BONINITE GENESIS: RESULTS FROM IODP EXPEDITION 366
    SHERVAIS, John W., Department of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322 and JOHNSON, Kevin T.M., Department of Earth Sciences, School of Ocean and Earth Science and Technology, University of Hawai‘i at Mānoa, University of Hawai‘i at Mānoa, HI 96822
    5:00 PM
    PETIT-SPOT SUBMARINE VOLCANOES AS A GEOLOGICAL PERTURBATION OF SUBDUCTING PLATE
    HIRANO, Naoto1, YUTANI, Taku2 and SAKAI, Shunta2, (1)Center for Northeast Asian Studies, Tohoku University, Kawauchi 41, Aoba-ku, Sendai, 980-8576, Japan; The Graduate School of Science, Tohoku University, Aramaki Aoba, Aoba-ku, Sendai, 980-8578, Japan, (2)The Graduate School of Science, Tohoku University, Aramaki Aoba, Aoba-ku, Sendai, 980-8578, Japan
    214-14
    5:15 PM
    Withdrawn
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