MR22A:
The Physical Properties of Core Materials I

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Session ID#: 15980

Session Description:
This session focuses on the iron-based alloys of planetary cores. We offer a platform for discussing the most recent advancements in the mineral physics of these materials and their implications for characterizing the present-day state of the core and its evolution. We encourage submissions about the transport properties, both thermal and electrical, and about the seismic properties of the iron alloys. We will pay special attention to chemical aspects: solubility of light elements, partitioning between the mantle and liquid metal, partitioning between solid and liquid iron, and isotope fractionation. We want to go one step further and discuss the possible mineral basis of the differences and similarities between the iron-based cores of different planetary bodies. We welcome contributions from computational and experimentalist mineral physicists, geodynamicists, seismologists, geochemists, planetologists, and other geoscientists with core interests.
Primary Convener:  Razvan Caracas, CNRS Lyon, Lyon, France
Conveners:  Dario Alfe, University College London, Department of Earth Sciences, London, United Kingdom and Hidenori G Terasaki, Osaka University, Osaka, Japan
Chairs:  Dario Alfe, University College London, Department of Earth Sciences, London, United Kingdom, Razvan Caracas, CNRS Lyon, Lyon, France and Hidenori G Terasaki, Osaka University, Osaka, Japan
OSPA Liaison:  Razvan Caracas, CNRS Lyon, Lyon, France

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

3672 Planetary mineralogy and petrology [MINERALOGY AND PETROLOGY]
3924 High-pressure behavior [MINERAL PHYSICS]
5109 Magnetic and electrical properties [PHYSICAL PROPERTIES OF ROCKS]
7207 Core [SEISMOLOGY]

Abstracts Submitted to this Session:

Sound velocity of iron-light element compounds and the chemical structure of the inner core (153611)
Eiji Ohtani1, Tatsuya Sakamaki2, Hiroshi Fukui3, Ryosuke Tanaka1, Yuki Shibazaki4, Seiji Kamada1, Takanori Sakairi1, Suguru Takahashi1, Satoshi Tsutsui5 and Alfred Q. R. Baron6, (1)Tohoku University, Sendai, Japan, (2)Tohoku University, Department of Earth Science, Sendai, Japan, (3)University of Hyogo, Kobe, Japan, (4)Tohoku University, Frontier Research Institute for Interdisciplinary Sciences, Sendai, Japan, (5)Japan Synchrotron Radiation Research Institute, Hyogo, Japan, (6)RIKEN SPring-8 Center, Material Dynamics Laboratory, Hyogo, Japan
Hydrogen in the core? (Invited) (146476)
Kei Hirose, Tokyo Inst Tech, Tokyo, Japan, Koichiro Umemoto, Tokyo Institute of Technology, Earth-Life Science Institute, Tokyo, Japan, Shoh Tagawa, The University of Tokyo, Department of Earth and Planetary Science, Tokyo, Japan and Burkhard Militzer, University of California Berkeley, Department of Astronomy, Berkeley, United States
Ab initio simulations of hydrogen in the inner and outer core of the Earth (160185)
Burkhard Militzer, University of California Berkeley, Department of Astronomy, Berkeley, United States, Shoh Tagawa, The University of Tokyo, Department of Earth and Planetary Science, Tokyo, Japan, Kei Hirose, Tokyo Institute of Technology, Earth-Life Science Institute, Tokyo, Japan and Sean M Wahl, University of California Berkeley, Berkeley, CA, United States
Long term core evolution with extraction of light elements at the core mantle boundary (Invited) (146572)
Stephane Labrosse, Ecole Normale Supérieure Lyon, Lyon, France
Searching for the light-element candidate of the Earth’s inner core (128201)
Yunguo Li, University of Science and Technology of China, London, United Kingdom, Lidunka Vocadlo, University College London, London, United Kingdom, John Peter Brodholt, University of Oslo, Centre of Earth Evolution and Dynamics, Oslo, Norway and Ian G Wood, University College London, Earth Sciences, London, United Kingdom
Computing phase relations involving ordered solid solutions ab initio: Three thermodynamic approaches to the Fe-Si binary (136411)
Paul D Asimow, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, Razvan Caracas, CNRS Lyon, Lyon, France, Aaron S S Wolf, University of Michigan Ann Arbor, Ann Arbor, United States and Jean-Philippe Harvey, McGill University, Dept of Earth and Planetary Sciences, Montreal, QC, Canada
Pre-melting Behaviour in fcc Metals (174036)
Martha G Pamato1, Ian G Wood1, David P Dobson2, Simon Hunt3 and Lidunka Vocadlo1, (1)University College London, London, United Kingdom, (2)University College London, Earth Sciences, London, United Kingdom, (3)University of Manchester, Department of Materials, Manchester, M13, United Kingdom
The Effect of Nickel on Iron Isotope Fractionation and the Strength of Iron Alloys (196402)
Mary M Reagan1, Arianna E Gleason2, Anat Shahar3, Stephen M Elardo3, Jin Liu4, Andrew Doran5, Yuming Xiao6 and Wendy L Mao7, (1)Stanford Earth Sciences, Geological Sciences, Stanford, CA, United States, (2)Los Alamos National Laboratory, Los Alamos, NM, United States, (3)Carnegie Institution for Science Washington, Washington, DC, United States, (4)Yanshan University, Qinhuangdao, China, (5)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (6)Argonne National Laboratory, X ray Science division, Argonne, United States, (7)Stanford University, Earth and Planetary Sciences, Stanford, United States

See more of: Mineral and Rock Physics