DI44A:
Driving the Interior: The Role of Boundary Layers in the Dynamic Evolution of the Earth's Mantle I

Thursday, 18 December 2014: 4:00 PM-6:00 PM
Chairs:  Keely Anne O'Farrell, University College London, London, United Kingdom and Tobias Rolf, University of Oslo, Centre for Earth Evolution and Dynamics (CEED), Oslo, Norway
Primary Conveners:  Keely Anne O'Farrell, University College London, London, United Kingdom
Co-conveners:  Shijie Zhong, University of Colorado at Boulder, Boulder, CO, United States and Tobias Rolf, ETH Zurich, Centre for Earth Evolution and Dynamics, Oslo, Norway
OSPA Liaisons:  Keely Anne O'Farrell, University College London, London, United Kingdom

Abstracts Submitted to this Session:

4:00 PM
DI44A-01
 
Lower Mantle Superplume Growth Stimulates Geomagnetic Reversals
Peter Olson, Johns Hopkins University, Baltimore, MD, United States and Hagay Amit, LPGN Laboratoire de Planétologie et Géodynamique de Nantes, Nantes Cedex 03, France
4:15 PM
DI44A-02
 
Interaction Between Mantle Plumes, Subducted Oceanic Crust and Primordial Reservoirs at Earth’s Lowermost Mantle
Mingming Li, Allen K McNamara and Edward Garnero, Arizona State University, Tempe, AZ, United States
4:30 PM
DI44A-03
 
When Boundary Layers Collide: Plumes v. Subduction Zones
Louis Noel Moresi1, Peter G Betts2, Meghan Samantha Miller3, David Willis2 and Leland O'Driscoll3, (1)University of Melbourne, Parkville, Australia, (2)Monash University, Clayton, Australia, (3)University of Southern California, Los Angeles, CA, United States
4:45 PM
DI44A-04
 
A Dynamical Context for Small-scale Heterogeneity Throughout the Mantle Beneath Subduction
Daniel Andrew Frost1,2, Sebastian Rost3 and Edward Garnero1, (1)Arizona State University, Tempe, AZ, United States, (2)University of Leeds, Leeds, United Kingdom, (3)University of Leeds, Leeds, LS2, United Kingdom
5:00 PM
DI44A-05
 
Slab Deformation in the Mantle Transition Zone: The Effect of Plate Age and Strength Evolution
Fanny Garel1,2, Saskia D B Goes3, Rhodri Davies4, John Huw Davies1, Stephan C Kramer2 and Cian R Wilson5, (1)Cardiff University, Cardiff, CF24, United Kingdom, (2)Imperial College, London, United Kingdom, (3)Imperial College London, London, SW7, United Kingdom, (4)Australian National University, Canberra, ACT, Australia, (5)Lamont -Doherty Earth Observatory, Palisades, NY, United States
5:15 PM
DI44A-06
 
Attenuation in the Upper Mantle Beneath “Normal” Old Seafloor in the Western Pacific
Donald W Forsyth, Brown Univ, Providence, RI, United States and Dayanthie S Weeraratne, California State University Northridge, Northridge, CA, United States
5:30 PM
DI44A-07
 
Origin of Azimuthal Seismic Anisotropy in Oceanic Plates and Mantle
Thorsten W Becker1, Clinton P Conrad2, Andrew J Schaeffer3 and Sergei Lebedev3, (1)University of Southern California, Los Angeles, CA, United States, (2)University of Hawaii at Manoa, Dept. Geology and Geophysics, Honolulu, HI, United States, (3)Dublin Institute for Advanced Studies, Dublin, Ireland
5:45 PM
DI44A-08
 
Mantle Rheology and Plate Tectonics: Damage and Inheritance
Yanick R Ricard, LGLTPE Laboratoire de Géologie de Lyon : Terre, Planètes et Environnement, Villeurbanne Cedex, France, David Bercovici, Yale University, New Haven, CT, United States and Gerald Schubert, UCLA, Los Angeles, CA, United States
 
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