DI21B:
Connecting the Dynamics of the Core and Mantle to Observations and Experiments II Posters


Submit an Abstract to this Session


Session ID#: 56802

Session Description:
Recent observations and experiments have significantly advanced our understanding of the dynamics of the deep Earth. However, many crucial details remain unclear; such as the composition of the mantle and core, origin and content of heterogeneities at the core-mantle boundary and primordial reservoirs, and chemical stratification of the outer core and the heterogeneity in the inner core. Earth’s magnetic field provide unique insights into the dynamics and evolution of the core. Advances in paleomagnetism reveal the geodynamo is persistent over much of Earth history, yet its dynamics and evolution remain uncertain.  Numerical models of Earth’s core offer a way to synthesize satellite, observatory, archeomagnetic, and paleomagnetic data, to produce a more complete understanding of core dynamics. This session combines geo/paleomagnetic measurements, high pressure and temperature experiments, and high-resolution geochemical/geophysical observations with theory and numerical simulations to provide insight into the dynamical evolution of the deep interior.
Primary Convener:  Peter E Driscoll, Carnegie Science, Earth & Planets Lab, Washington, United States
Conveners:  Teh-Ru Alex Song, University College London, Department of Earth Sciences, London, United Kingdom, Courtney Jean Sprain, University of Florida, Department of Geological Sciences, Ft Walton Beach, FL, United States and J ZhangZhou, Zhejiang University, School of Earth Sciences, Hangzhou, China
Primary Liaison:  J ZhangZhou, University of California San Diego, La Jolla, CA, United States
Chairs:  Peter E Driscoll, University of Washington Seattle Campus, Seattle, WA, United States and Teh-Ru Alex Song, University College London, Earth Sciences, London, United Kingdom
OSPA Liaison:  Courtney Jean Sprain, University of Florida, Department of Geological Sciences, Ft Walton Beach, FL, United States
Co-Organized with:
Study of Earth's Deep Interior, and Geomagnetism, Paleomagnetism and Electromagnetism

Cross-Listed:
  • MR - Mineral and Rock Physics
  • NG - Nonlinear Geophysics

Proposed Co-Organized Session with:
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
Index Terms:

1510 Dynamo: theories and simulations [GEOMAGNETISM AND PALEOMAGNETISM]
1560 Time variations: secular and longer [GEOMAGNETISM AND PALEOMAGNETISM]
7207 Core [SEISMOLOGY]
8124 Earth's interior: composition and state [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Acceleration, Jerks, and External Signals: Global Characterization of Earth’s Field on Sub-Annual Time Scales with Space Constellation Measurements (392957)
Regupathi Angappan1, Brian J Anderson2, Sarah K. Vines2 and Sabine Stanley3, (1)Johns Hopkins University, Department of Earth and Planetary Sciences, Baltimore, MD, United States, (2)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (3)University of Toronto, Toronto, ON, Canada
Recent Observations of Airport Runway Modifications Related to the South Atlantic Anomaly (SAA) (461523)
Theodore A. Lee III, USACE-ERDC CRREL, Vicksburg, MS, United States and Mihan H. McKenna, US Army Engineer Research and Development Center, Vicksburg, MS, United States
Does fluid acceleration play a role in geodynamo-driven data assimilation for prediction of short-term secular variations? (429098)
Hiroaki Toh, Kyoto University, Kyoto, Japan, Futoshi Takahashi, Kyushu University, Fukuoka, Japan, Shinya Nakano, The Institute of Statistical Mathematics, Tachikawa, Japan, Masaki Matsushima, Tokyo Tech, Tokyo, Japan, Takuto Minami, University of Tokyo, Bunkyo-ku, Japan and Hisayoshi Shimizu, Univ Tokyo, Tokyo, Japan
Examination of Geomagnetic Jerks Around 2003 and 2007 Using Wavelet Analysis (358236)
Hisayoshi Shimizu, The University of Tokyo, Earthquake Research Institute, Tokyo, Japan
Asymmetric growth and decay of the geomagnetic dipole field examined with numerical dynamo simulations (455060)
Margaret S Avery, U.S. Geological Survey, Moffett Field, United States, Catherine Constable, Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, University of California San Diego, La Jolla, United States, David Gubbins, Univ Leeds, Leeds, United Kingdom and Prof. Christopher J Davies, University of Leeds, School of Earth and Environment,, Leeds, United Kingdom
Magnetic and gravimetric signals in relation with the core flow (393203)
Mioara Mandea, CNES French National Center for Space Studies, Toulouse Cedex 09, France, Anny A Cazenave, Université de Toulouse, LEGOS (CNES/CNRS/IRD/UT), Toulouse, France, Veronique M A Dehant, Royal Observatory Belgium, Brussels, Belgium, Olivier de Viron, U. La Rochelle, LIENSs, La Rochelle, France, Alejandro Blazquez, LEGOS-CNES, Université de Toulouse, CNRS, UPS, IRD, Toulouse, France, Raphael Laguerre, Observatoire Royal de Belgique, Brussel, Belgium, Ping Zhu, Observatoire Royal de Belgique, Brussels, Belgium and Ingo Wardinski, University of Nantes, Nantes, France
The Low Geomagnetic Secular Variation in the Pacific and the Inhomogeneous Conducting Lower Mantle (421028)
Mathieu Dumberry, Department of Physics, University of Alberta, Edmonton, AB, Canada and Colin More, University of Alberta, Edmonton, AB, Canada
Quasi-geostrophic Flow in the Earth’s core in the Presence of Topography at the Boundaries (429929)
Dominique Jault, University Grenoble Alpes, ISTerre (CNRS), France, Felix Gerick, University Grenoble Alpes, ISTerre, Grenoble, France and Jerome Noir, ETH Swiss Federal Institute of Technology Zurich, Zürich, Switzerland
Core flow interaction at the core-mantle boundary and at the inner core boundary inferred from a core surface flow model (402805)
Masaki Matsushima, Tokyo Institute of Technology, Tokyo, Japan
First Images Of Magnetite In Jack Hills Zircon – Are They Primary Inclusions? (377327)
Rich Taylor1, Richard Harrison1, Fengzai Tang1, Caue Borlina2, Benjamin P Weiss3 and Roger R Fu4, (1)University of Cambridge, Earth Sciences, Cambridge, United Kingdom, (2)Johns Hopkins University, Department of Earth and Planetary Sciences, Baltimore, MD, United States, (3)MIT, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States, (4)Harvard University, Cambridge, MA, United States
Did Earth’s first supercontinent form the inner core? (392775)
Ross Nelson Mitchell1, Grant M Cox2, Joseph G O'Rourke3, Zheng-Xiang Li4, Christopher J Spencer5, Uwe Kirscher6, Nan Zhang7, J Brendan Murphy8, Adam Nordsvan1 and Paul D Asimow9, (1)Curtin University, School of Earth and Planetary Sciences, Perth, Australia, (2)University of Adelaide, Adelaide, Australia, (3)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (4)Earth Dynamics Research Group, Curtin University, School of Earth and Planetary Sciences, Perth, WA, Australia, (5)Queen’s University, Department of Geological Sciences and Geological Engineering, Kingston, ON, Canada, (6)Earth Dynamics Research Group, ARC Centre of Excellence for Core to Crust Fluid Systems (CCFS) and The Institute for Geoscience Research (TIGeR), School of Earth and Planetary Sciences, Curtin University, Perth, Australia, (7)Curtin University, Earth Dynamics Research Group, The Institute for Geoscience Research (TIGeR), School of Earth and Planetary Sciences, Perth, WA, Australia, (8)Department of Earth Sciences, St. Francis Xavier University, Antigonish, Nova Scotia, B2G 2W5, Canada, Department of Earth Sciences, Antigonish, Canada, (9)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States
A multidisciplinary assessment of heat flux at the core mantle boundary (445611)
Mingda Lv, Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States, Margaret S Avery, University of California San Diego, La Jolla, CA, United States, Bruce A Buffett, University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, Xiaoran Chen, Rutgers University, Earth and Planetary Sciences, New Brunswick, NJ, United States, Chidester Bethany, University of California Davis, Earth and Planetary Sciences, Davis, CA, United States, Jie Deng, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States, Susannah Dorfman, Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States, Benjamin Jacob Farcy, University of Maryland College Park, College Park, MD, United States, Daniel Andrew Frost, University of California Berkeley, Berkeley Seismological Laboratory, Berkeley, United States, Zhi Li, University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, Lijun Liu, University of Illinois at Urbana-Champaign, Department of Earth Science and Environmental Change, Urbana, United States and Joshua Frederick Martin, Ohio State University, School of Earth Sciences, Columbus, OH, United States
Interpreting long-term changes in the paleomagnetic field using stochastic models and dynamo simulations (348879)
William Davis and Bruce A Buffett, University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States
Investigation of dynamic sub-grid scale (SGS) terms in dynamo simulations with small Ekman number (413112)
Hiroaki Matsui, University of California Davis, Davis, CA, United States and Bruce A Buffett, University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States
Thermal and Chemical History Modelling of a Stably Stratified Outer Core (448015)
Sam Greenwood, University of Leeds, Leeds, LS2, United Kingdom, Prof. Christopher J Davies, University of Leeds, School of Earth and Environment,, Leeds, United Kingdom and Jonathan E Mound, University of Leeds, School of Earth and Environment, Leeds, United Kingdom
Thermoelectric Power and Thermoelectric Dynamo of Mercury (424830)
Hitoshi Gomi, Misasa, Japan, Takashi Yoshino, Okayama University, Institute for Planetary Materials, Tottori, Japan and Akira Yoneda, Okayama Univ, Tottori, Japan
Array-based iterative measurements of SmKS travel times and their constraints on outermost core structure (458204)
Wenbo Wu, California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States and Jessica C E Irving, University of Bristol, School of Earth Sciences, Bristol, BS8, United Kingdom
Thermal conductivity measurement at high pressure and high temperature corresponding to deep Earth’s condition (403561)
Akira Hasegawa, Tokyo Institute of Technology, Department of Earth and Planetary Sciences, Tokyo, Japan, Kenji Ohta, Institute of Science Tokyo, Department of Earth and Planetary Sciences, Tokyo, Japan, Takashi Yagi, AIST - National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan and Kei Hirose, Tokyo Inst Tech, Tokyo, Japan
Ab-initio Study of Iron Diffusion Properties with Implications to Inner Core Plasticity (361833)
Sebastian Ritterbex, Ehime University, Matsuyama, Japan and Taku Tsuchiya, Geodynamics Research Center, Matsuyama, Japan
High-P,T elasticity of Fe-Si and Fe-S alloys (443300)
Taku Tsuchiya, Ehime University, Geodynamics Research Center, Matsuyama, Japan
Structural measurement on 60 mol% Al2O3 – 40 mol% SiO2 glass up to 131 GPa (424097)
Itaru Ohira, Ehime University, Geodynamics Research Center, Ehime, Japan, Yoshio Kono, Ehime University, Geodynamics Research Center, Matsuyama, Japan; Carnegie Institution of Washington, HPCAT, Geophysical Laboratory, Argonne, IL, United States, Yuki Shibazaki, Tohoku University, Frontier Research Institute for Interdisciplinary Sciences, Sendai, Japan; National Institute for Materials Science, International Center for Young Scientists, Tsukuba, Japan, Curtis Kenney-Benson, Argonne National Laboratory, HPCAT, Advanced Photon Source, Argonne, IL, United States, Atsunobu Masuno, Hirosaki University, Graduate School of Science and Technology, Hirosaki, Japan and Guoyin Shen, Argonne National Laboratory, X-ray Science Division, Argonne, IL, United States
Deformation microstructures of subducted slabs in the lower mantle (428647)
Shintaro Azuma1, Ryuichi Nomura2, Kentaro Uesugi3, Yu Nishihara2, Shunta Doi2, Takeshi Arimoto2 and Tetsuo Irifune4, (1)Kyushu University, Fukuoka, Japan, (2)Ehime University, Matsuyama, Japan, (3)Japan Synchrotron Radiation Research Institute, Hyogo, Japan, (4)Ehime University, Geodynamics Research Center, Matsuyama, Japan
Effects of pressure and other thermodynamic conditions for the production of metallic Fe from (Mg, Fe)O (392880)
Yanjun Xiao1,2, Jennifer Girard3, Zhenting Jiang1 and Shun-ichiro Karato4, (1)Yale University, Geology and Geophysics, New Haven, CT, United States, (2)Peking University, Earth and space science, Beijing, China, (3)Yale University, Earth and Planetary Sciences, New Haven, United States, (4)Yale University, Earth and Planetary Sciences, New Haven, CT, United States
Highly precise 182W/184W isotopic compositions of ocean island basalts through MC-ICP-MS (382562)
Katsuhiko Suzuki, Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Resources Utilization, Kanagawa, Japan, Asako Takamasa, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Submarine Resources Research Center, Kanagawa, Japan, Yusuke Fukami, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan and Tsuyoshi Iizuka, The University of Tokyo, Department of Earth and Planetary Science, Tokyo, Japan

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