MR42A:
Composition and Material Properties of the Core I


Submit an Abstract to this Session


Session ID#: 61586

Session Description:
The composition of the core and the properties of core materials at high pressures and temperatures reveal much about the formation, evolution, and current state of the Earth’s core. Discrepancies between density estimates from seismology and mineral physics require the presence of lighter elements in both the liquid outer core and the solid inner core, with potentially different concentrations. There are several candidates, including, but not limited to, hydrogen, carbon, nitrogen, oxygen, silicon, and sulfur. We seek contributions from geochemistry, experimental petrology, experimental and theoretical mineral physics, seismology, and geodynamics that shed light on the composition and state of the Earth’s core; melting behavior and elastic and transport properties of iron alloys; properties of possible stratified layers in the outer core; crystal structure, elasticity, and seismic attenuation and anisotropy of the inner core; and solidification and deformation of the inner core. Contributions concerning other terrestrial planetary cores are also welcome.
Primary Convener:  Zhicheng Jing, Southern University of Science and Technology, Earth and Space Sciences, Shenzhen, China
Conveners:  Bin Chen, University of Hawaii at Manoa, Honolulu, United States, Rebecca A. Fischer, Harvard University, Cambridge, MA, United States and Michael I Bergman, Bard College at Simon's Rock, Great Barrington, MA, United States
Primary Liaison:  Zhicheng Jing, Southern University of Science and Technology, Earth and Space Sciences, Shenzhen, China
Chairs:  Zhicheng Jing, Case Western Reserve University, Cleveland, United States, Rebecca A. Fischer, Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States and Michael I Bergman, Bard College at Simon's Rock, Great Barrington, MA, United States
OSPA Liaison:  Zhicheng Jing, Case Western Reserve University, Cleveland, United States

Cross-Listed:
  • P - Planetary Sciences
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

3909 Elasticity and anelasticity [MINERAL PHYSICS]
3919 Equations of state [MINERAL PHYSICS]

Abstracts Submitted to this Session:

Narrowing down the composition range of the core by combination of petrology and mineral physics data (Invited) (383438)
Yingwei Fei, Carnegie Institution of Washington, Geophysical Laboratory, Washington, DC, United States
Phase relations in the Fe--S--O system to Earth and planetary core conditions (411990)
Claire Christine Zurkowski, University of Chicago, Chicago, United States, Chidester Bethany, University of California Davis, Earth and Planetary Sciences, Davis, CA, United States, Eran Greenberg, University of Chicago, Center for Advanced Radiation Sources, Lemont, IL, United States, Vitali B Prakapenka, The University of Chicago, Center for Advanced Radiation Sources, Chicago, United States and Andrew Campbell, University of Chicago, Chicago, IL, United States
Constraints on the rheology and texture development of Earth’s inner core from high-pressure diffusion experiments (422021)
Jeffrey S Pigott1, Erik H Hauri2, Jianhua Wang3, Julien Chantel4, Zhicheng Jing5, Jian Han6, Henry P Scott7 and James Van Orman5, (1)Los Alamos National Laboratory, Shock and Detonation Physics, Los Alamos, NM, United States, (2)Carnegie Inst Washington, Washington, DC, United States, (3)Carnegie Science, Earth and Planets Laboratory, Washington, United States, (4)Univ. Lille, Lille, France, (5)Case Western Reserve University, Cleveland, United States, (6)Case Western Reserve University, Cleveland, OH, United States, (7)Indiana Univ South Bend, South Bend, IN, United States
Low hydrogen contents in the cores of terrestrial planets (Invited) (350063)
Vincent Clesi, Laboratoire de Geologie de Lyon, Clermont-Ferrand, France, Mohamed Ali Bouhifd, Laboratoire Magmas et Volcans, CNRS, IRD, OPGC, Université Clermont Auvergne, Clermont-Ferrand, France, Nathalie Bolfan-Casanova, Laboratoire Magmas et Volcans, Clermont-Ferrand Cedex, France, Geeth Manthilake, Université Clermont Auvergne, CNRS, IRD, OPGC, Laboratoire Magmas et Volcans, Clermont-Ferrand Cedex, France, Federica Schiavi, Université Clermont Auvergne, CNRS, IRD, OPGC, Laboratoire Magmas et Volcans, Aubière, France, Caroline Raepsaet, CEA Commissariat à l'Energie Atomique Saclay, Gif-Sur-Yvette Cedex, France, Helene Bureau, Sorbonne Université - MNHN - CNRS - IMPMC, Paris, France, Hicham Khodja, CEA Commissariat à l'Energie Atomique Saclay, DSM/IRAMIS/NIMBE/LEEL, Gif-Sur-Yvette Cedex, France and Denis Andrault, University Blaise Pascal Clermont-Ferrand II, Clermont-Ferrand, France
Experimental studies of Fe alloys at the high-pressure frontier (Invited) (447596)
June K Wicks, Princeton University, Princeton, NJ, United States
Melting experiments on the Fe–C binary system up to 255 GPa: Constraints on the carbon content in the Earth’s core (383478)
Izumi Mashino1, Francesca Miozzi2, Kei Hirose3,4, Guillaume Morard2 and Ryosuke Sinmyo1, (1)The University of Tokyo, Department of Earth and Planetary Science, Tokyo, Japan, (2)Sorbonne Université - MNHN - CNRS - IMPMC, Paris, France, (3)The University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Tokyo, Japan, (4)Earth-Life Science Institute, Meguro, Japan
Thermal Expansion of Liquid Fe-S Alloys at High Pressure (359163)
Fang Xu1, Nicolas Guignot2, Guillaume Morard1, Geeth Manthilake3, Longjian Xie4, Akira Yoneda5, Julien Chantel6, Clemens Prescher7,8, Eglantine Boulard9, Frederick J Ryerson10 and Daniele Antonangeli1, (1)Sorbonne Université - MNHN - CNRS - IMPMC, Paris, France, (2)SOLEIL Synchrotron, PICHE, Saint-Aubin, France, (3)Université Clermont Auvergne, CNRS, IRD, OPGC, Laboratoire Magmas et Volcans, Clermont-Ferrand Cedex, France, (4)Institute for Planetary Materials, Okayama University, Tottori, Japan, (5)Okayama Univ, Tottori, Japan, (6)Univ. Lille, Lille, France, (7)University of Freiburg, Center for Advanced Radiation Sources, Freiberg, Germany, (8)IMG, University of Cologne, Cologne, Germany, (9)IMPMC, Institut de Minéralogie et de Physique des Milieux Condensés, Paris, France, (10)LLNL, Livermore, CA, United States
Experimental Investigation of Core Crystallization in Small Terrestrial Bodies (Invited) (345474)
Anne Pommier, University of California San Diego, La Jolla, CA, United States

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