Outline of Session

   

Solid Earth Sciences(S) / Science of the Earth's Interior & Techtonophysics(IT) /  **International Session
S-IT03 Earth and Planetary Cores Seen from Multi-disciplinary Approaches


Short title Earth and Planetary Cores
Oral presentation
Date/Room/Chair
May 21 AM1 (09:00 - 10:45) 202 Satoru Tanaka  / Yasuhiro Kuwayama 
May 21 AM2 (11:00 - 12:45) 202 Yuhji Yamamoto  / Masaki Matsushima 
May 21 PM1 (14:15 - 16:00) 202 Takashi Nakagawa  / Takanori Sakairi 
Poster presentation
Date/Room
May 21 (Core Time 18:15 - 19:30) Convention Hall
Contact Satoru Tanaka
Email stan@jamstec.go.jp
Convener Satoru Tanaka  / Yasuhiro Kuwayama  / Yuhji Yamamoto 
Scope Recently, the physical properties relating to the Earth's core are revisited under exact conditions. Their new features activate many discussions: for example, hexagonal close-packed iron may be nearly isotropic, which requires a new mechanism of inner core anisotropy; thermal conductivity may be 2-3 times larger than the previous estimates, which inhibits vigorous convection in the outer core and requires a young inner core. We can find the Earth's core is still a mysterious region. As for the core of the other planetary body, the Moon's core is discovered by using Apollo seismic data, which should be confirmed and further constrained by new scientific project with modern techniques. Here we would like to have an opportunity to discuss recent advances and exchange interesting ideas about the Earth's and planetary cores. We welcome any papers from any discipline, such as mineral physics, geomagnetism, geodynamics, seismology and any other relevant fields.
Notes  


Time Presentation No Title Author Presenter Abstract
Oral Presentation   May 21 AM1 (09:00-10:45) 202                              to the top
09:00 - 09:15 SIT03-01 Depth variation of the hemispheric seismic structure of the inner core inferred from global seismic array data Ryohei Iritani
Nozomu Takeuchi
Hitoshi Kawakatsu
Ryohei Iritani English
09:15 - 09:30 SIT03-02 Topography of the inner core boundary inferred from frequency dependent amplitude ratio of PKiKP/PcP Satoru Tanaka
Hrvoje Tkalcic
Satoru Tanaka English
09:30 - 09:45 SIT03-03 Lattice preferred orientation of hcp-iron induced by shear deformation Yu Nishihara
Tomohiro Ohuchi
Takaaki Kawazoe
other
Yu Nishihara English
09:45 - 10:00 SIT03-04 Solubility of silicon in hcp-iron at high pressure and high temperature Yasuhiro Kuwayama Yasuhiro Kuwayama English
10:00 - 10:15 SIT03-05 Amount of sulfur in the inner core based on sound velocities and EOS of Fe3S at high pressures Seiji Kamada
Eiji Ohtani
Hidenori Terasaki
other
Seiji Kamada English
10:15 - 10:30 SIT03-06 Sound velocity of iron-light-element alloys at high pressure and temperature and composition and thermal state of the in Eiji Ohtani
SAKAI, Takashi
KAMADA, Seiji
other
Eiji Ohtani English
10:30 - 10:45 Invited
SIT03-07
Understanding the Lunar core: past, present and future Naoki Kobayashi Naoki Kobayashi English
Oral Presentation   May 21 AM2 (11:00-12:45) 202                              to the top
11:00 - 11:15 SIT03-08 First 23-41 Ma relative geomagnetic paleointensity records in the equatorial Pacific Yuhji Yamamoto
Toshitsugu Yamazaki
Yuhji Yamamoto English
11:15 - 11:30 SIT03-09 Rock-magnetic artifacts on long-term relative paleointensity variations in sediments Toshitsugu Yamazaki
Yuhji Yamamoto
ACTON, Gary
other
Toshitsugu Yamazaki English
11:30 - 11:45 Invited
SIT03-10
Observations of the early geomagnetic field by paleomagnetism and possible temporal trend in paleointensity Yoichi Usui
Tsuyoshi Komiya
Yusuke Sawaki
Yoichi Usui English
11:45 - 12:00 SIT03-11 Core surface flow modeling with geomagnetic diffusion Masaki Matsushima Masaki Matsushima English
12:00 - 12:15 SIT03-12 Double diffusive convection in the Earth's core and the morphology of the geomagnetic field Futoshi Takahashi Futoshi Takahashi English
12:15 - 12:30 Invited
SIT03-13
Effects of small-scale buoyancy in geodynamo simulations Hiroaki Matsui Hiroaki Matsui English
12:30 - 12:45 SIT03-14 Rotating magnetohydrodynamic waves and convection: Implications for geomagnetic secular variation Kumiko Hori
Shin-ichi Takehiro
Hisayoshi Shimizu
Kumiko Hori English
Oral Presentation   May 21 PM1 (14:15-16:00) 202                              to the top
14:15 - 14:30 SIT03-15 Effects of thermal conductivity on thermal and magnetic evolution of Earth's core Takashi Nakagawa Takashi Nakagawa English
14:30 - 14:45 SIT03-16 Thermodynamics of melting relations in the system Fe-FeO Tetsuya Komabayashi Tetsuya Komabayashi English
14:45 - 15:00 SIT03-17 Melting relation in the Fe-S-Si system at high pressure and temperature: Implications for the Earth's core Takanori Sakairi
Eiji Ohtani
Takeshi Sakai
other
Takanori Sakairi English
15:00 - 15:15 SIT03-18 The effect of carbon on density and elastic property of liquid Fe-C under high pressure Yuta Shimoyama
Hidenori Terasaki
Eiji Ohtani
other
Yuta Shimoyama English
15:15 - 15:30 3-min talk in an oral session@(SIT03-P01/SIT03-P02)


Presentation No Title Author Presenter Abstract
Poster Presentation   May 21  Core Time (18:15-19:30) Convention Hall                    to the top
SIT03-P01 Comparison between the temporal spectrums of geomagnetic paleointensity and paleomagnetic direction: A case study Yoichi Usui Yoichi Usui English
SIT03-P02 Sound velocity and density measurement of alloy liquid under pressure Hidenori Terasaki
Keisuke Nishida
Satoru Urakawa
other
Hidenori Terasaki English
SIT03-P03 Phase relationships of the Fe-Ni-S system at 15GPa Ryota Kamuro
Satoru Urakawa
Akio Suzuki
other
Satoru Urakawa English