DI018
Characterizing the Dynamic Upper Mantle Using Multidisciplinary Approaches I

Friday, 11 December 2020: 19:00-20:00
Virtual
Primary Convener:  Andrew J Schaeffer, Natural Resources Canada, Ottawa, ON, Canada
Conveners:  Emily J Chin, Brown Univeristy, Providence, RI, United States, Anne Pommier, UC San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Heather A Ford, Yale University, New Haven, CT, United States
Primary Liaison:  Emily J Chin, Brown Univeristy, Providence, RI, United States
Chairs:  Emily J Chin, Brown Univeristy, Providence, RI, United States and Heather A Ford, Yale University, New Haven, CT, United States
OSPA Liaison:  Emily J Chin, Brown Univeristy, Providence, RI, United States
19:00
Origin of Mid-Lithosphere Discontinuities in the South-Eastern US (744515)
Tolulope M Olugboji, University of Rochester, Earth and Environmental Sciences, Rochester, NY, United States, Shun-ichiro Karato, Yale University, Geology and Geophysics, New Haven, CT, United States, Gary D Egbert, Oregon State Univ, Corvallis, OR, United States and Jeffrey J Park, Yale University, Geology & Geophysics, New Haven, CT, United States
19:04
Tectonic History of Australia Preserved by Mantle Anisotropic Boundaries (718109)
Caroline M Eakin, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia
19:08
Structure of the Australian Lithosphere (729485)
Andrew Birkey1, Heather A Ford2, Gillian Goldhagen1 and Page Dabney3, (1)University of California Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States, (2)University of California, Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States, (3)Eckerd College, St Petersburg, FL, United States
19:12
Tracing the Origin and Evolution of the Lithospheric Mantle Beneath the Fijian Archipelago — Insights from Koro Island Peridotite Xenoliths (705916)
Natasha Barrett, University of Alberta, Department of Earth and Atmospheric Sciences, Edmonton, AB, Canada, Graham Pearson, University of Alberta, Earth and Atmospheric Sciences, Edmonton, AB, Canada, Holger Sommer, University of Namibia, Department of Geology, Windhoek, Namibia, Stephen F Foley, Macquarie University, Department of Earth and Planetary Sciences, Sydney, NSW, Australia and Neil Kumar, University of the South Pacific, School of Geography, Earth Science and Environment, Suva, Fiji
19:16
New Insights into Upper-Mantle Rheology from the Post-Seismic Deformation Following Deep Earthquakes (720475)
Sunyoung Park1, Jean-Philippe Avouac1, Zhongwen Zhan1 and Adriano Gualandi2, (1)California Institute of Technology, Pasadena, CA, United States, (2)Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy
19:20
Seismic Signature of Pressure Driven Asthenosphere Flow in Mantle Convection Models With Plate-Like Behavior (685188)
Alana Semple and Adrian Lenardic, Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States
19:24
Constraining Modal Error in Ultramafic Thermodynamic Solution Models: Validating Interpretations of Seismic Wave Speed (681334)
William Joseph Joseph Shinevar, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Mark D Behn, Boston College, Earth and Environmental Sciences, Chestnut Hill, MA, United States and Oliver E Jagoutz, Massachusetts Institute of Technology, Cambridge, MA, United States
19:28
Investigating grain boundary sliding in olivine by in situ nanomechanical testing in a transmission electron microscope (670166)
Patrick Cordier, University of Lille 1, Villeneuve d'Ascq, France, Vahid Samaee, Universiteit Antwerpen, Electron Microscopy for Materials Science, Antwerpen, Belgium and Hosni Idrissi, Universiteit Antwerpen, Antwerpen, Belgium
19:32
Modelling Effects of Olivine Grain Size Evolution on Upper Mantle Dynamics (727324)
Jonas B Ruh, Leif Tokle and Whitney M Behr, Structural Geology and Tectonics Group, Geological institute, ETH Zurich, Zurich, Switzerland
19:36
Discussion