DI41B:
The Mantle Transition Zone: Its Role in Earth’s Thermochemical Evolution II Posters

Thursday, 18 December 2014: 8:00 AM-12:20 PM
Chairs:  Caroline Beghein, University of California Los Angeles, Earth, Space, and Planetary Sciences, Los Angeles, CA, United States, Nicholas C Schmerr, University of Maryland, College Park, MD, United States and Jiuhua Chen, Florida International Univ., Miami, FL, United States
Primary Conveners:  Nicholas C. Schmerr, University of Maryland, College Park, MD, United States
Co-conveners:  Jiuhua Chen, Florida International Univ., Miami, FL, United States, Elizabeth Day, University of Cambridge, Cambridge, United Kingdom and Caroline Beghein, UCLA - Earth and Space Sciences, Los Angeles, CA, United States
OSPA Liaisons:  Elizabeth A Day, Bullard Laboratories, Cambridge, CB3, United Kingdom

Abstracts Submitted to this Session:

4325
 
Imaging Upper Mantle Discontinuities Using Stacking and Finite-Frequency Methods
Jianhua Gong, ITAG Institute of Theoretical and Applied Geophysics, Peking University, Beijing, China and Zengxi Ge, Peking University, Beijing, China
4326
 
Using Seismic Discontinuities to Image Melt and Dynamics in the Sub-Continental Upper Mantle
Nicholas C Schmerr, University of Maryland College Park, College Park, MD, United States, Anna M Courtier, University of Wisconsin Whitewater, Whitewater, WI, United States, Saswata Hier-Majumder, Royal Holloway University of London, Egham, United Kingdom and Vedran Lekic, University of Maryland, Washington, DC, United States
4327
 
Effects of topography on upper mantle discontinuities for array detections of PP precursors
Stephan Lessing1, Christine Thomas2, Sebastian Rost3, Elizabeth A Vanacore3 and Nicholas C Schmerr4, (1)University of Muenster, Muenster, Germany, (2)University of Münster, Münster, Germany, (3)University of Leeds, Leeds, LS2, United Kingdom, (4)University of Maryland College Park, College Park, MD, United States
4328
 
Toward a Comprehensive Understanding of Transition Zone Seismic Discontinuities: Part I. New Constraints from Receiver Function Forward and Backward Scattering Waves
Xuzhang Shen, Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou, China, Teh-Ru Alex Song, University College London, London, United Kingdom and Xiaohui Yuan, Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany
4329
 
Imaging Resolution of the 410-km and 660-km Discontinuities
Kai Deng1,2 and Ying Zhou2, (1)ITAG Institute of Theoretical and Applied Geophysics, Peking University, Beijing, China, (2)Virginia Tech, Blacksburg, VA, United States
4330
 
Heterogeneities within natural enstatite and their role in phase relations, rheology, and lattice-preferred orientation within akimotoite
Jeffrey Lockridge and Thomas G Sharp, Arizona State University, Tempe, AZ, United States
4331
 
In Situ Measurements of the Post-Spinel and Post-Garnet Phase Boundaries in Pyrolite at 17-32 GPa and 1500-2400 K
Yu Ye1, Chen Gu2, Sang-Heon Shim1, Vitali Prakapenka3 and Yue Meng4, (1)Arizona State University, Tempe, AZ, United States, (2)Massachusetts Institute of Technology, Cambridge, MA, United States, (3)University of Chicago, GeoSoilEnviroCARS, Chicago, IL, United States, (4)HPCAT, Argonne, Chicago, IL, United States
4332
 
Seismic Signature of a Hydrous Mantle Transition Zone
Vincent Thio, Laura J Cobden and Jeannot Trampert, Utrecht University, Utrecht, 3584, Netherlands
4333
 
Transition Zone Anisotropy Beneath Deep Slabs and the Transport of Water into the Lower Mantle
Andy Nowacki1, J Michael Kendall1, James M Wookey1 and Asher Pemberton2, (1)University of Bristol, School of Earth Sciences, Bristol, BS8, United Kingdom, (2)University of Bristol, School of Earth Sciences, Bristol, United Kingdom
4334
 
Mid-mantle Seismic Anisotropy in the Southwestern Pacific Subduction Systems
Anwar Mohiuddin, Yale University, Geology and Geophysics, New Haven, CT, United States and Maureen D Long, Yale University, New Haven, CT, United States
4335
 
Mid-mantle anisotropy beneath Japan and South America from source-side shear wave splitting
Colton Lynner and Maureen D Long, Yale University, New Haven, CT, United States
4336
 
Evidence from P-wave receiver functions for lower mantle plumes and mantle transition zone water beneath West Antarctica
Erica Emry1, Andrew Nyblade1, Jordi Julià2, Sridhar Anandakrishnan1, Richard C Aster3, Douglas A Wiens4, Audrey D Huerta5 and Terry J Wilson6, (1)Pennsylvania State University Main Campus, University Park, PA, United States, (2)UFRN Federal University of Rio Grande do Norte, Natal, Brazil, (3)Colorado State University, Geosciences Department, Fort Collins, CO, United States, (4)Washington University in St Louis, Department of Earth and Planetary Sciences, St. Louis, MO, United States, (5)Central Washington University, Ellensburg, WA, United States, (6)Ohio State Univ, Department of Geological Sciences, Columbus, OH, United States
4337
 
Transition Zone Structures beneath Hawaii Imaged with SS precursors
Chunquan Yu1, Robert D van der Hilst1, Elizabeth A Day2 and Maarten V De Hoop3, (1)Massachusetts Institute of Technology, Cambridge, MA, United States, (2)Bullard Laboratories, Cambridge, CB3, United Kingdom, (3)Purdue University, West Lafayette, IN, United States
4338
 
Mantle transition zone structure beneath the western Gulf of Mexico and central southern US from triplicated P waveforms
Hobin Lim, Younghee Kim and Junkee Rhie, Seoul National University, Seoul, South Korea
4339
 
Depth Variation of Upper Mantle Seismic Discontinuities in the Region of the Tonga Subduction Zone
Jie Chen1, Doulgas A Wiens2, Erica Emry3, Songqiao Shawn Wei4, Chen Cai2, Yang Zha5, Spahr C Webb6, William H Menke7 and Yongshun John Chen8, (1)ITAG Institute of Theoretical and Applied Geophysics, Peking University, Beijing, China, (2)Washington University in St Louis, Earth and Planetary Sciences, St. Louis, MO, United States, (3)Pennsylvania State University Main Campus, University Park, PA, United States, (4)Washington University in St Louis, St. Louis, MO, United States, (5)Columbia University of New York, Palisades, NY, United States, (6)Lamont Doherty Earth Observ, Palisades, NY, United States, (7)Lamont-Doherty Earth Obs, Palisades, NY, United States, (8)Peking University, Beijing, China
4340
 
Upper-mantle seismic structure beneath a region northeast of Japan based on Hi-net array triplication data
Sunyoung Park, Ahmet Okeler and Miaki Ishii, Harvard University, Cambridge, MA, United States
4341
 
Seismic Constraints on the Japan Subduction Zone from Waveform Inversions of SS precursors
Ramin Dokht, Yu Jeffrey Gu and Mauricio D Sacchi, University of Alberta, Edmonton, AB, Canada
4342
 
Can Mantle Transition Zone beneath the Caroline Plate, Equatorial Western Pacific Be Resolved Seismologically Using Available Dataset?
Hyuck Kang, Kensuke Konishi and Sang-Mook Lee, Seoul National University, Seoul, South Korea
4343
 
A Receiver Function Study of Mantle Transition Zone Discontinuities beneath Egypt and Saudi Arabia
Kelly Hong Liu1, Abdelnasser A Mohamed1,2, Stephen S Gao1, Ahmed A Elsheikh1, Youqiang Yu1 and R E Fat-Helbary2, (1)Missouri University of Science and Technology, Rolla, MO, United States, (2)National Research Institute of Astronomy and Geophysics, Helwan, Egypt
4344
 
Investigating Transition Zone Thickness Variation under the Arabian Plate: Evidence Lacking for Deep Mantle Upwellings
Jordi Julià1, Zheng Tang2, Paul Martin Mai2 and Hani Zahran3, (1)UFRN Federal University of Rio Grande do Norte, Natal, Brazil, (2)King Abdullah University of Science and Technology, Thuwal, Saudi Arabia, (3)Saudi Geological Survey, Jeddah, Saudi Arabia
4345
 
Hydrous upwelling across the mantle transition zone beneath the Afar Triple Junction
J Michael Kendall, University of Bristol, Bristol, BS8, United Kingdom, David A Thompson, University of Leeds, COMET, School of Earth and Environment, Leeds, LS2, United Kingdom, James O S Hammond, Imperial College London, London, SW7, United Kingdom, Graham William Stuart, University of Leeds, Leeds, United Kingdom, George R Helffrich, Tokyo Institute of Technology, Tokyo, Japan, Derek Keir, University of Southampton, Southampton, United Kingdom, Atalay Ayele, Addis Ababa University, Addis Ababa, Ethiopia and Berhe Goitom, University of Bristol, Bristol, United Kingdom
 
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