DI53A:
Diverse Perspectives on the Deep Mantle II Posters


Submit an Abstract to this Session


Session ID#: 58010

Session Description:
Deep mantle reservoirs are central in the long-term evolution of the Earth, acting as the boundary layer with the core, long-term repositories of differentiation products, and the slab graveyard. This rich history is manifested by increased seismic velocity variations within the deep mantle, including coherent seismic structures such as LLSVPs and ULVZs. Observations suggest this area is complex due to the potential presence of phase transition, interactions with the outer core, recycled material, deep mantle plume formation, and remnants of primordial heterogeneity. This session focuses on constraining the present-day structure, composition, and dynamics of the lowermost mantle, how structures and chemical heterogeneity in the lowermost mantle formed and evolved over time, and the implications this complex region has for understanding the evolution of the Earth as a whole. We welcome contributions from geochemistry, seismology, mineral physics, mantle dynamics, and petrology that involve modeling efforts, experimental constraints, or new observations.
Primary Convener:  Bradford J Foley, Pennsylvania State University Main Campus, University Park, PA, United States
Conveners:  Colin Jackson, Tulane University, Department of Earth and Environmental Sciences, New Orleans, United States and Shuai Zhang, Lawrence Livermore National Laboratory, Livermore, CA, United States
Primary Liaison:  Sanne Cottaar, University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom
Chairs:  Shuai Zhang, Lawrence Livermore National Laboratory, Livermore, CA, United States and Colin Jackson, Tulane University, Department of Earth and Environmental Sciences, New Orleans, United States
OSPA Liaison:  Sanne Cottaar, University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom
Co-Organized with:
Study of Earth's Deep Interior, and Volcanology, Geochemistry and Petrology

Cross-Listed:
  • MR - Mineral and Rock Physics
  • P - Planetary Sciences
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology

Proposed Co-Organized Session with:
  • MR - Mineral and Rock Physics
  • P - Planetary Sciences
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1038 Mantle processes [GEOCHEMISTRY]
3924 High-pressure behavior [MINERAL PHYSICS]
7208 Mantle [SEISMOLOGY]
8125 Evolution of the Earth [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Marine Carbonates in the Mantle Source of Oceanic Basalts: Clues from Pb and Sr Isotopes (351320)
Paterno Castillo, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
Thermochemical evolution of the upper mantle over 3.5 Gyr: Implications from Mid Ocean Ridge and Subduction Zone basalt magmas (345317)
Jun-Ichi Kimura, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, James Gill, University of California Santa Cruz, Santa Cruz, CA, United States and Peter E van Keken, Carnegie Science, Earth & Planets Laboratory, Washington, United States
Role of recycled sediment in the origin of enriched deep mantle source (428184)
Yanfei Zhang1, Chao WANG2, Zhenmin Jin3, Jide Zhang2, Shuyan Jin2 and Wei Gan4, (1)Hohai University, College of Oceanography, Nanjing, China, (2)China University of Geosciences Wuhan, Wuhan, China, (3)China Univ Geosciences, Wuhan, China, (4)China University of Geosciences Beijing, School of Earth Sciences and Resources, Beijing, China
Constraining the global water budget: Understanding the deep water cycle using 3D mantle convection models (431142)
Matthew Price, Cardiff University, School of Earth and Ocean Sciences, Cardiff, United Kingdom, John Huw Davies, Cardiff University, School of Earth and Ocean Sciences, Cardiff, CF24, United Kingdom and James Panton, Cardiff University, School of Earth and Environmental Sciences, Cardiff, United Kingdom
Instantaneous characteristics of convection in a heterogeneous mantle (347507)
Angela Limare1, Claude P Jaupart2, Edouard Kaminski1 and Cinzia G. Farnetani3, (1)Institut de Physique du Globe de Paris, Paris, France, (2)Université de Paris, Institut de Physique du Globe de Paris (IPGP), UMR 7154, Paris, France, (3)Institute de Physique du Globe de Paris, Paris, France
Can deep subduction of dense eclogite slow mantle convection enough to preserve high 3He/4He in the deep mantle? (431711)
Rosie Jones1, Peter E van Keken2, Erik Hauri3, Jonathan Tucker4 and Christopher J Ballentine1, (1)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, (2)Carnegie Institution for Science Washington, Washington, DC, United States, (3)Carnegie Institution for Science, Washington, DC, United States, (4)Carnegie Institution for Science, Department of Terrestrial Magnetism, Washington, MA, United States
Effects of plate tectonic simulations on mantle convection and mixing (413055)
Miki Nakajima, University of Rochester, Rochester, NY, United States and Peter E van Keken, Carnegie Science, Earth & Planets Laboratory, Washington, United States
Effects of heat-producing elements on the long-term evolution of thermochemical piles at the base of the mantle (454543)
Robert I Citron1, Ma. Teresa Escobar2, Antoniette Greta Grima3, Xiaobao Lin4, Diogo José Louro Lourenço5, Alfred Wilson6, Scott Alan Wipperfurth7, Jun Yan8, Sanne Cottaar9, Laurent Montesi7, Sujoy Mukhopadhyay10, Rita Parai11 and Maxwell L Rudolph12, (1)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, (2)University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Chiba, Japan, (3)University of Texas at Austin, Institute of Geophysics, Austin, United States, (4)University of Illinois at Urbana Champaign, Department of Geology, Urbana, IL, United States, (5)University of California Davis, Department of Earth and Planetary Sciences, Davis, United States, (6)University College London, Department of Earth Sciences, London, United Kingdom, (7)University of Maryland College Park, Department of Geology, College Park, MD, United States, (8)ETH Zurich, Institute of Geophysics, Zurich, Switzerland, (9)University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, (10)Arizona State University, Department of Earth and Planetary Sciences, Tempe, AZ, United States, (11)Washington University in St Louis, Earth, Environmental, and Planetary Sciences, St. Louis, MO, United States, (12)University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States
Inference of mantle viscosity structure from density tomography (428559)
Maxwell L Rudolph, University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States, Pritwiraj Moulik, University of Maryland College Park, Department of Geology, College Park, MD, United States and Vedran Lekic, University of Maryland, Department of Geology, College Park, United States
Exploring Deformation Mechanisms at the Base of the Earth’s Mantle with Combined Constraints from Geodynamics, Mineral Physics and Seismic Anisotropy. (375703)
Brian C Chandler, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States, Li-Wei Chen, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Mingming Li, Arizona State University, School of Earth and Space Exploration, Tempe, United States, Sanne Cottaar, University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, Allen K McNamara, Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States, Barbara A Romanowicz, Institut de Physique du Globe de Paris, Collège de France, Paris, France; University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States and Hans-Rudolf Wenk, University of California Berkeley, Earth and Planetary Science, Berkeley, United States
Evaluating the ratio of S-wave to P-wave velocity variations for the Pacific LLVP based on long-period traveltime data (385601)
Paula Koelemeijer, University College London, Department of Earth Sciences, London, United Kingdom; University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, Carlos A. M. Chaves, University of Michigan Ann Arbor, Ann Arbor, MI, United States; Universidade de São Paulo, Departamento de Geofísica, São Paulo, Brazil and Jeroen Ritsema, Univ Michigan, Ann Arbor, MI, United States; University of Michigan, Department of Earth and Environmental Sciences, Ann Arbor, MI, United States
Ultra-High Velocity Zones (UHVZs) at Earth’s core mantle boundary (397011)
Shule Yu1, Edward Garnero2, Sang-Heon Dan Shim2 and Mingming Li3, (1)Arizona State University, Tempe, AZ, United States, (2)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (3)Arizona State University, School of Earth and Space Exploration, Tempe, United States
An Ultra-low Velocity Zone beneath the Galapagos Hotspot (414542)
Sanne Cottaar, University of Cambridge, Cambridge, United Kingdom and Zhi Li, University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom
Deep dip reversal of Indian Ocean slab induced by the African LLSVP (383106)
Huilin Wang, Huazhong University of Science and Technology, Wuhan, China, Yaoyi Wang, University of Illinois at Urbana Champaign, Geology, Urbana, IL, United States, Michael Gurnis, California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States, Sabin Zahirovic, The University of Sydney, School of Geosciences, Sydney, NSW, Australia and Wei Leng, University of Science and Technology of China, Hefei, China
Modeling and Observations of Seismic Anisotropy in the Lowermost Mantle Beneath Siberia (426683)
Creasy Neala, Colorado School of Mines, Golden, United States, Angelo Pisconti, University of Münster, Institute of Geophysics, Münster, Germany, Maureen D Long, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States and Christine Thomas, Westfälische Wilhelms-Universität Münster, Institute of Geophysics, Münster, Germany
Imaging Earth’s lowermost mantle with a global data set of diffracted shear waves (444767)
Susan M Klem1, Edward Garnero1 and Hongyu Lai2, (1)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (2)Arizona State University, Tempe, AZ, United States
Investigating Ultra-low Velocity Zones in the Southern Hemisphere Using ScP Waveforms (413585)
Sarah Elizabeth Carson, University of Alabama, Tuscaloosa, AL, United States, Samantha Elizabeth Hansen, The University of Alabama, Geological Sciences, Tuscaloosa, United States, Edward Garnero, Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States and Shule Yu, Arizona State University, Tempe, AZ, United States
Lower mantle structure beneath Africa imaged by SKS-SKKS differential splitting and travel time delays (396986)
Miriam Christina Reiss, Yale University, Geology & Geophysics, New Haven, CT, United States and Maureen D Long, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States
Seismic Evidence for Small-scale Shear Velocity Variance of D” Layer beneath Northern Indian Plate (425267)
Guohui Li, ITP Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China, Ling Bai, Chinese Academy of Sciences, Institute of Tibetan Plateau Research, Beijing, China and Jeroen Ritsema, Univ Michigan, Ann Arbor, MI, United States
Topography of the western Pacific LLSVP constrained by S wave multipathing (428823)
Sunil K Roy1,2, Nozomu Takeuchi3, Srinagesh Davulluri1, Ravi Kumar Mangalampally1,4 and Hitoshi Kawakatsu3, (1)CSIR-National Geophysical Research Institute, Hyderabad, India, (2)Earthquake Research Institute, University of Tokyo, Tokyo, Japan, (3)Earthquake Research Institute, The University of Tokyo, Tokyo, Japan, (4)Institute of Seismological Research, Gandhinagar, India
Towards Higher Resolution Imaging of Earth’s Lower Mantle (396981)
Hongyu Lai1, Edward Garnero2, Steve Grand3 and Chunpeng Zhao1, (1)Arizona State University, Tempe, AZ, United States, (2)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (3)University of Texas at Austin, Department of Geological Sciences, Austin, United States
Probabilistic estimation of normal-mode structure coefficients and their uncertainties for mantle-sensitive modes (386275)
Surya Pachhai, UCSD Scripps Institution of Oceanography, La Jolla, CA, United States, Guy Masters, UCSD Scripps Inst Oceanography, La Jolla, CA, United States and Gabi Laske, Scripps Institution of Oceanography, La Jolla, United States
Seismological and spatial characteristics of a core-rigidity zone beneath Mexico constrained with ScP waveform modeling (434714)
John Jeremy Jasbinsek, California Polytechnic State University San Luis Obispo, San Luis Obispo, CA, United States and Sophia Ford, California Polytechnic State University San Luis Obispo, Physics, San Luis Obispo, CA, United States
Ultralow Velocity Zones Inferred from Melting of Aluminum-rich Phase in the Lowermost Mantle (424920)
Kun Yin, Nanjing University, Nanjing, China
Melting Curve of Calcium Silicate Perovskite (421731)
James William Harold Braithwaite, University College London, London, United Kingdom and Lars P Stixrude, University of California Los Angeles, Department of Earth, Planetary and Space Sciences, Los Angeles, CA, United States

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