DI32A:
The Mantle Transition Zone: Its Role in Earth’s Thermochemical Evolution I

Session ID#: 4312

Wednesday, 17 December 2014: 10:20 AM-12:20 PM
301 (Moscone_South)
Chairs:  Caroline Beghein, University of California Los Angeles, Earth, Space, and Planetary Sciences, Los Angeles, CA, United States and Nicholas C Schmerr, University of Maryland College Park, Department of Geology, College Park, MD, United States
Primary Convener:  Nicholas C Schmerr, University of Maryland College Park, College Park, MD, United States
Co-conveners:  Jiuhua Chen, Florida International University, Mechanical and Materials Engineering, Miami, United States, Elizabeth Day, University of Cambridge, Cambridge, United Kingdom and Caroline Beghein, UCLA - Earth and Space Sciences, Los Angeles, CA, United States
OSPA Liaison:  Elizabeth A Day, Imperial College London, Earth Science and Engineering, London, United Kingdom
Co-Sponsor(s):
  • MR - Mineral and Rock Physics
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1038 Mantle processes [GEOCHEMISTRY]
3914 Electrical properties [MINERAL PHYSICS]
3924 High-pressure behavior [MINERAL PHYSICS]
7208 Mantle [SEISMOLOGY]
Virtual Option?: No
Swirl Theme: Convection and circulation across scales

Abstracts Submitted to this Session:

DI32A-01
Water and Slabs in the Transition Zone - Hydrous Ringwoodite in Diamond (Invited) (3004)
Graham Pearson1, Frank E. Brenker2, Fabrizio Nestola3, John McNeill4, Lutz Nasdala5, Mark Hutchison6, Sergei Matveev7, Kathy Mather4, Laszlo Vincze8, Sylvia Schmitz2 and Bart Vekemens8, (1)University of Alberta, Earth and Atmospheric Sciences, Edmonton, AB, Canada, (2)Geothe University, Frankfurt, Germany, (3)University of Padua, Department of Geosciences, Padua, Italy, (4)Durham University, Durham, United Kingdom, (5)Universitat Wien, Vienna, Austria, (6)Trigon GeoServices Ltd, Las Vegas, United States, (7)University of Alberta, Edmonton, AB, Canada, (8)Ghent University, Ghent, Belgium
DI32A-02
Water Partitioning at the Base of the Transition Zone: No Need for a Lower Mantle Water Filter? (Invited) (3450)
Wendy R Panero, Ohio State University, School of Earth Sciences, Columbus, OH, United States and Jeffrey S Pigott, Ohio State University Main Campus, Columbus, OH, United States
DI32A-03
Imaging the Mantle Transition Zone Using Multimode Waveform Tomography (Invited) (4834)
Andrew J Schaeffer and Sergei Lebedev, Dublin Institute for Advanced Studies, Dublin, Ireland
DI32A-04
The Fate of Subducted Sediment at the Base of the Mantle Transition Zone: Water and the K-hollandite → NAL Phase Transformation (11855)
Robert P Rapp, The Australian National University, Research School of Earth Sciences, Canberra, Australia, Mainak Mookherjee, Florida State University, Earth, Ocean and Atmospheric Science, Tallahassee, FL, United States, Norimasa Nishiyama, Deutsches Elektronen Synchrotron DESY, Hamburg, Germany and Tetsuo Irifune, Ehime University, Geodynamics Research Center, Matsuyama, Japan
DI32A-05
Imaging the Effects of Subducting Slabs on the Mantle Transition Zone with Pds Receiver Functions Beneath Southern Europe (7966)
Sanne Cottaar, University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom and Arwen Fedora Deuss, University of Cambridge, Cambridge, United Kingdom; Utrecht University, Utrecht, Netherlands
DI32A-06
High Resolution Transition Zone Discontinuity Images across the Pacific Ocean from SS Precursors Using Local Slant Stack Filters (14612)
Zhao Zheng, UC Berkeley Seismological Laboratory, Berkeley, CA, United States, Barbara A Romanowicz, Berkeley Seismological Laboratory, University of California Berkeley, Berkeley, United States; Institut de Physique du Globe de Paris, Collège de France, Paris, France and Sergi Ventosa, Institut de Physique du Globe, Paris, France
DI32A-07
Testing thermochemical mantle circulation with Mantle Transition Zone velocities and topography (Invited) (16239)
Christine T Houser and John W Hernlund, Earth-Life Science Institute, Meguro, Tokyo, Japan
DI32A-08
Influence of majorite on hot plumes (11889)
Hiroki Ichikawa1, Masanori Kameyama1, Hiroki Senshu2, Kenji Kawai3 and Shigenori Maruyama4, (1)Ehime University, Matsuyama, Japan, (2)Chiba Institute of Technology, Narashino, Japan, (3)University of Tokyo, Bunkyo-ku, Japan, (4)Tokyo Inst Technology, Department of Earth and Planetary Sciences, Tokyo, Japan
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