DI31B:
Slabs in the Mantle and the Fate of Subducted Material II Posters

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Session ID#: 13017

Session Description:
Subducting slabs are not only the primary source for chemical and thermal heterogeneity within the Earth’s mantle due to their dominating role in Earth’s mass transport, but are also the main drivers of both flow in their surroundings and global mantle convection. Constraining the behavior, chemistry, and physical properties of slabs is therefore crucial for insights into the overall evolution and dynamics of the Earth’s interior. 

In this session, some key areas of interest are slab rheology and deformation, slab-mantle interaction (e.g., transition zone barrier), transport of water and volatiles to the deep mantle, subduction life-cycle including the slab graveyard, and separation of the oceanic crust with associated implications for mantle mixing and composition.

We welcome therefore contributions from a wide range of disciplines including seismology, mineral and rock physics, petrology, geochemistry, and geodynamics.

Primary Convener:  Caroline M Eakin, Australian National University, Canberra, Australia
Conveners:  Fabio Crameri, University of Oslo, Centre for Earth Evolution and Dynamics (CEED), Oslo, Norway, Mainak Mookherjee, Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States and Ikuo Katayama, Hiroshima University, Higashi-Hiroshima, Japan
Chairs:  Caroline M Eakin, Australian National University, Canberra, Australia, Ikuo Katayama, Hiroshima University, Higashi-Hiroshima, Japan and Mainak Mookherjee, Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States
OSPA Liaison:  Caroline M Eakin, Australian National University, Canberra, Australia

Cross-Listed:
  • MR - Mineral and Rock Physics
  • S - Seismology
  • T - Tectonophysics
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1031 Subduction zone processes [GEOCHEMISTRY]
3999 General or miscellaneous [MINERAL PHYSICS]
7240 Subduction zones [SEISMOLOGY]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Understanding slab-mantle interaction by 3D seismic imaging of reflectivity in the mantle wedge (136681)
Luchen Li1, Hao Hu1, Xinyan Li2 and Yingcai Zheng1, (1)University of Houston, Earth and Atmospherical Sciences Dept, Houston, TX, United States, (2)University of Houston, Earth and Atmospheric Sciences, Houston, TX, United States
Permeability of serpentinites and implication for the oceanic mantle hydration along the outer rise faults (147038)
Kohei Hatakeyama and Ikuo Katayama, Hiroshima University, Higashi-Hiroshima, Japan
Dehydration of Chlorite Explains Anomalously High Electrical Conductivity in the Mantle Wedges (155629)
Geeth Manthilake1, Nathalie Bolfan-Casanova2, Davide Novella2, Mainak Mookherjee3 and Denis Andrault2, (1)Université Clermont Auvergne, CNRS, IRD, OPGC, Laboratoire Magmas et Volcans, Clermont-Ferrand, France, (2)Laboratoire Magmas et Volcans, Clermont-Ferrand, France, (3)Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States
High-pressure behavior of 10 Å phase (Mg3Si4O10(OH)2.H2O) (158570)
Mainak Mookherjee, Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States, Emma Kalvan, Florida State University, Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States and Andreas Hermann, University of Edinburgh, School of Physics and Astronomy, Edinburgh, United Kingdom
Tracing Geophysical Indicators of Fluid-Induced Serpentinization in the Pampean Flat Slab Subduction Region of Chile (182647)
James Robert Bourke, Rutgers University New Brunswick, Department of Earth and Planetary Sciences, New Brunswick, United States, Alex Nikulin, Binghamton University, Department of Geological Sciences and Environmental Studies, Binghamton, United States and Jeffrey J Park, Yale University, Earth & Planetary Sciences, New Haven, CT, United States
Slab interaction with the upper mantle underneath Southern Peru (151446)
Xyoli Perez-Campos, Instituto de Geofísica, Universidad Nacional Autónoma de México, Mexico City, Mexico and Robert W Clayton, California Institute of Technology, Pasadena, CA, United States
3D receiver function Kirchhoff depth migration image of Cascadia subduction slab weak zone (145078)
Cheng Cheng, University of California Berkeley, Berkeley, CA, United States, Richard M Allen, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, Thomas Bodin, LGL-TPE, Université Claude Bernard, Lyon1, CNRS, ENS, Villeurbanne, France and Benoit Tauzin, Université de Lyon, UCBL, ENSL, CNRS, LGL-TPE, Villeurbanne, France
Tomographic Mantle Structure of the Eastern Caribbean: Slab Ponding & the Interplay between Rollback, Lithospheric Tearing, and Collision (194174)
Cooper William Harris, University of Southern California, Los Angeles, CA, United States, Meghan Samanth Miller, University of California Los Angeles, Earth, Space, and Planetary Sciences, Los Angeles, CA, United States, Dr. Robert W Porritt, PhD, Sandia National Laboratories, Albuquerque, United States and Joan L Latchman, Organization Not Listed, Washington, DC, United States
Slab geometry of the South American margin from joint inversion of body waves and surface waves (149913)
Dr. Robert W Porritt, PhD1, Kevin Michael Ward2, Ryan C Porter3, Daniel Evan Portner2, Lynner Colton2, Susan L Beck1 and George Zandt4, (1)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (2)University of Arizona, Tucson, AZ, United States, (3)Northern Arizona University, Flagstaff, AZ, United States, (4)Retired, Washington, DC, United States
The “3-Basins” Project in Mid South America and the Geometry of the Deep Nazca Subducted Slab (173746)
Marcelo Assumpcao, University of Sao Paulo, Inst. of Astronomy, Geophysics and Atmospheric Sciences, Sao Paulo, Brazil, Marcelo Belentani de Bianchi, IAG-USP Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo, Geophysics, Sao Paulo, Brazil, Marcelo Rocha Sr., UNB University of Brasilia, Asa Norte, Brazil and Paulo Araujo de Azevedo, Federal University of Western Pará, Santarém, Brazil
A model of buoyant ridge subduction: effects of ridge width, buoyancy and obliquity (156543)
Saskia D B Goes, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, Kamile Rudaviciute, Imperial College London, London, United Kingdom, Loic Fourel, Institut de Physique du Globe de Paris, Paris, France, Gabriele Morra, University of Louisiana at Lafayette, Lafayette, LA, United States and Luke Jenkins, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
Trench Retreat and Migration, a Parameterised Model Approach. (159857)
Antoniette Greta Grima, University of Texas at Austin, Institute of Geophysics, Austin, United States, Carolina R Lithgow-Bertelloni, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States and Fabio Crameri, University of Oslo, Centre for Earth Evolution and Dynamics (CEED), Oslo, Norway
Asymmetric Subductions in an Asymmetric Earth: Geodynamics and Numerical Modeling (149420)
Eleonora Ficini1, Luca Dal Zilio2, Carlo Doglioni1,3 and Taras Gerya4, (1)Sapienza University of Rome, Rome, Italy, (2)ETH Zürich, Institute of Geophysics, Department of Earth Sciences, Switzerland, Zurich, Switzerland, (3)National Institute of Geophysics and Volcanology, Rome, Italy, (4)ETH Zurich, Department of Earth and Planetary Sciences, Zurich, Switzerland
Subducting-slab transition-zone interaction: stagnation, penetration and mode switches (141112)
Roberto Agrusta, University of Durham, Durham, DH1, United Kingdom, Saskia D B Goes, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom and Jeroen Van Hunen, University of Durham, Department of Earth Sciences, Durham, United Kingdom
Metastability of Subducted Slabs in the Mantle Transition Zone: A Collaborative Geodynamic, Petrologic, and Seismological Approach (137775)
Magali I Billen, University of California Davis, Department of Earth and Planetary Sciences, Davis, United States, Megan S Duncan, Geophysical Laboratory of the Carnegie Institution for Science, Washington, DC, United States, Joshua M Garber, University of California Santa Barbara, Earth Science, Santa Barbara, United States, Corinna Roy, University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom, Anais Sandra Ibourichene, Institut de Physique du Globe de Paris, Paris, France, Toulope Olugboji, University of Maryland College Park, College Park, MD, United States, Crepisson Celine, University Pierre and Marie Curie Paris VI, Paris, France, Juan Rodríguez-González, Durham University, Durham, United Kingdom, Stephen P Grand, University of Texas at Austin, Jackson School of Geosciences, Austin, TX, United States, Pilar Madrigal, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, Dan Sandiford, Monash University, Clayton, VIC, Australia and Juan Jose Valencia-Cardona, University of Minnesota Twin Cities, Minneapolis, MN, United States
Thermal evolution of flattening slab and formation of wet plume: Insight into intraplate volcanism in East Asia (139918)
Lijuan He, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
A Broad Depressed 410-km Discontinuity beneath Northeast Asia (140124)
Juan Li1, Guangrui Guo1 and Xin WANG2, (1)Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (2)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
One and two-dimensional Triplicated waveform modeling beneath northeast Asia (156907)
Yujing Lai, Institute of Geology and Geophysics, Chinese Academy of Sciences, State Key Laboratory of Lithospheric Evolution, Beijing, China and Ling Chen, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
The topography of the Mantle Transition Zone beneath the Arabia-Eurasia collision zone in the Middle East by migration of receiver function (194004)
Ayoub Kaviani, Goethe University Frankfurt, Frankfurt, Germany and Ali Moradi, University of Tehran, Institute of Geophysics, Tehran, Iran
Preserving Cold Patches at Mid-Mantle Depths in Vigorous Mantle Convectilon (160101)
Gary T Jarvis, York Univ, Toronto, ON, Canada
Elasticity of Single-Crystal Superhydrous Phase B at Simultaneous High Pressure-Temperature Conditions: Implication for the Low-Velocity Layers in the Topmost Lower Mantle (146735)
Xinyang Li1, Zhu Mao1, Ningyu Sun1, Yifan Liao2, Shuangmeng Zhai3, Yi Wang1, Huaiwei Ni4, Jingyun Wang4, Sergey N Tkachev5 and Jung-Fu Lin6, (1)University of Science and Technology of China, Hefei, China, (2)University Science & Technology of China, Hefei, Anhui, China, (3)Chinese Academy of Sciences, Institute of Geochemistry, Guiyang, China, (4)University Science & Technology of China, Hefei, China, (5)University of Chicago, Center for Advanced Radiation Sources, Chicago, IL, United States, (6)University of Texas at Austin, Austin, TX, United States
Water transport to the lowermost mantle driven by δ-AlOOH - Phase H (MgSiO4H2) solid solution (170009)
Itaru Ohira1, Eiji Ohtani2,3, Seiji Kamada2,4, Naohisa Hirao5 and Akio Suzuki2, (1)Tohoku University, Department of Earth Science, Sendai, Japan, (2)Tohoku University, Sendai, Japan, (3)V.S. Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russia, (4)Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan, (5)JASRI, Hyogo, Japan
Structure and elasticity of phase-pi, Al3Si2O7(OH)3 at high-Pressure (131789)
Songlin Liu, Florida State University, Tallahassee, FL, United States, Mainak Mookherjee, Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States, Andreas Hermann, University of Edinburgh, School of Physics and Astronomy, Edinburgh, United Kingdom and Bernd Wunder, Helmholtz-Zentrum Potsdam GFZ, Potsdam, Germany
New FeO2 phase and the origins of ultralow-velocity zones at the core-mantle boundary (198569)
Jin Liu1, Duck Young Kim2, Qingyang Hu3,4, Tingting Gu4, Wenli Bi5, Yuming Xiao6, Yue Meng7, Paul Chow8, Ho-kwang Mao2 and Wendy L Mao9, (1)Yanshan University, Qinhuangdao, China, (2)Center for High Pressure Science & Technology Advanced Research, Shanghai, China, (3)Stanford University, Geological Sciences, Stanford, United States, (4)Center for High Pressure Science & Technology Advanced Research, Beijing, China, (5)Advanced Photon Source, Argonne National Laboratory, Argonne, IL, United States, (6)Argonne National Laboratory, X ray Science division, Argonne, United States, (7)Carnegie Institution of Washington, HPCAT, Argonne, IL, United States, (8)HPCAT of Geophysical Laboratory, Chicago, United States, (9)Stanford University, Earth and Planetary Sciences, Stanford, United States
Barium isotopic compositions of oceanic basalts from São Miguel, Azores Archipelago (146609)
Huimin Yu, USTC University of Science and Technology of China, Hefei, China, Xiaoyun Nan, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China and Fang Huang, University of Science and Technology of China, Hefei, China

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