DI43B:
Exploring the Earth’s Core: A Multidisciplinary Approach II Posters


Submit an Abstract to this Session


Session ID#: 49493

Session Description:
Two of Earth’s most astonishing features- it’s unique, time-varying magnetic field as well as it’s surficial activity due to plate tectonics- are driven by convective mass transport processes in the Earth’s interior, the details of which remain poorly understood to date. Notably, the description of the multi-scale dynamics involved in the thermal evolution of the dynamo-generating region of the outer core calls for the comparison of theoretical approaches, numerical modeling, experiments, and observations. Similarly, the complex structure of the inner core, observed at various spatial scales and resulting from crystallization, melting and deformation, remains perplexing in connection to the historical evolution of both regions of the core. As such, we solicit contributions from multi-disciplines including, but not limited to: seismology, mineral physics, geodynamics, and geomagnetism, in a common effort to advance the understanding of the Earth's core.
Primary Convener:  Marine Lasbleis, Tokyo Institute of Technology, Earth Life Science Institute, Tokyo, Japan
Conveners:  Emily Kate Hawkins, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States, Daniele Antonangeli, Sorbonne Université - MNHN - CNRS - IMPMC, Paris, France and Arwen Fedora Deuss, Utrecht University, Utrecht, Netherlands
Primary Liaison:  Marine Lasbleis, ELSI, Tokyo, Japan
Chairs:  Marine Lasbleis, ELSI, Tokyo, Japan and Emily Kate Hawkins, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States
OSPA Liaison:  Marine Lasbleis, ELSI, Tokyo, Japan
Co-Organized with:
Study of Earth's Deep Interior, Mineral and Rock Physics, and Seismology

Proposed Co-Organized Session with:
  • MR - Mineral and Rock Physics
  • S - Seismology
Index Terms:

1507 Core processes [GEOMAGNETISM AND PALEOMAGNETISM]
1510 Dynamo: theories and simulations [GEOMAGNETISM AND PALEOMAGNETISM]
3924 High-pressure behavior [MINERAL PHYSICS]
7207 Core [SEISMOLOGY]

Abstracts Submitted to this Session:

Refining the Velocity Gradient and Small-Scale Heterogeneity Structure of the Lowermost Outer Core (383502)
Susini de Silva, University of Connecticut, Department of Physics, Groton, CT, United States and Vernon F Cormier, University of Connecticut, Groton, CT, United States
Heterogeneities of the Earth's inner core boundary by pre-critically reflected phases of PKiKP and PcP (387275)
Dmitry Krasnoshchekov1, Vladimir Ovtchinnikov1 and Valentin Polishchuk2, (1)Institute of Geosphere Dynamics RAS, Moscow, Russia, (2)Linköping University, Department of Science and Technology, Norrköping, Sweden
P-V-T equation-of-state of liquid Fe from ab-initio simulations to the TPa regime (434901)
Gerd Steinle-Neumann and Fabian Wagle, Bayerisches Geoinstitut, Universitaet Bayreuth, Bayreuth, Germany
Silicon Abundance in the Earth's Core Constrained by a Multi-Technique Approach (346055)
Daniele Antonangeli1, Denis Andrault2, Simon Ayrinhac1, Frederic Decremps1, Eric Edmund1, Yingwei Fei3, Guillaume Fiquet1, Michel Gauthier4 and Guillaume Morard1, (1)Sorbonne Université - MNHN - CNRS - IMPMC, Paris, France, (2)University Blaise Pascal Clermont-Ferrand II, Clermont-Ferrand, France, (3)Carnegie Institution of Washington, Geophysical Laboratory, Washington, DC, United States, (4)Sorbonne Université - MNHN - CNRS - IMPMC, IMPMC, Paris, France
Laboratory measurements of heat and momentum transfer in core-style convection (441219)
Emily Kate Hawkins, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States and Jonathan M Aurnou, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States
Compaction of a mushy inner core : the fate of liquid trapped by fast growth. (404813)
Mathilde Kervazo, LPGN Laboratoire de Planétologie et Géodynamique de Nantes, Nantes Cedex 03, France and Marine Lasbleis, ELSI, Tokyo, Japan
Normal modes constraints on inner core 1D elastic structure and density using a forward modeling Monte Carlo approach (361201)
Alex Robson, University of California Berkeley, Berkeley, CA, United States and Barbara A Romanowicz, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States; Institut de Physique du Globe de Paris, Collège de France, Paris, France
Anisotropy heterogeneity of the top inner core in the Pacific region (366363)
Xinlei Sun and Jialing Qin, GIG Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Isotope Geochemistry, Guangzhou, China
Temporal Changes of Upper Part of the Earth’s Inner Core from Globally Distributed Repeating Earthquakes (389508)
Yi Yang, Department of Geology, University of Illinois at Urbana Champaign, Urbana, United States and Xiaodong Song, Institute of Theoretical and Applied Geophysics, Peking University, Beijing, China
Simulations of Pre-critical PKiKP Coda Waves with Implications for Small-Wavelength Heterogeneity in Earth's Inner Core (415447)
Guanning Pang, University of Utah, Salt Lake City, UT, United States, Sin-Mei Wu, University of Utah, Geology & Geophysics, Salt Lake City, United States, Keith D. Koper, University of Utah, Department of Geology and Geophysics, Salt Lake City, United States, Nicholas J Mancinelli, Brown University, Dept. of Earth, Environmental and Planetary Sciences, Providence, RI, United States and Garrett G Euler, Washington Univ. in St.Louis, St. Louis, MO, United States
A Test of Hemisphericity in the Fine-Scale Structure of Earth’s Inner Core (416647)
Sin-Mei Wu1, Guanning Pang1, Keith D. Koper2 and Garrett G Euler3, (1)University of Utah, Salt Lake City, UT, United States, (2)University of Utah, Department of Geology and Geophysics, Salt Lake City, United States, (3)Los Alamos National Laboratory, Los Alamos, NM, United States
Seismic structure near the inner-outer core boundary inferred from waveform modeling of HiNet data (451499)
Peter Nelson, University of Texas at Austin, Austin, TX, United States and Stephen P Grand, University of Texas, Austin, United States
The Seismically Constrained Elastic Constants of the Earth’s Transversely Isotropic Inner Core (453281)
Brent Delbridge, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States and Miaki Ishii, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States

See more of: Study of Earth's Deep Interior