[S-IT16] 惑星中心核：内部構造・形成・進化

2024年5月29日(水) 15:30 〜 17:00 102 (幕張メッセ国際会議場)

コンビーナ:飯塚理子(早稲田大学教育学部理学科地球科学専修)、中島陽一(熊本大学大学院先端科学研究部物理科学講座)、新名良介(明治大学)、河口沙織(高輝度光科学研究センター)、座長:中島陽一(熊本大学大学院先端科学研究部物理科学講座)、新名良介(明治大学)

There are fundamental links between the formation and evolution of planets and their satellites to that of their cores, both in terms of magnetic field generation and chemical and physical structures. Defining properties of cores and core materials are therefore important for understanding their internal structures, evolution, and thermal profile. Recent advances in experimental and theoretical studies provide new insights into the Earth's cores and the cores of other terrestrial bodies. We seek to understand the nature and role of light elements in the early history of planets and better define their current state. Recent, on-going and future space missions have and will continue to obtain data on the internal structure of terrestrial planets (e.g., Mars and Mercury) and planet-satellite systems. We welcome presentations on recent advances on the physical and chemical properties of cores and discussions regarding the latest views of their formation and evolution. We welcome contributions from mineral/rock physics, geophysics, geochemistry, geodynamics, and planetary science. We also welcome papers stimulating an interdisciplinary collaboration relating to establishment of the Study of Earth Deep Interior (SEDI)-Japan community. The Commission of Physics of Minerals of the International Mineralogical Association (CPM-IMA) sponsors this session.

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15:30 〜 15:45

[SIT16-06] Experimental study on trapped melt in iron meteorite: Implication for core solidification in planetesimals

*寺崎英紀¹、松原潮李¹、芳野極²、浦川啓¹、Bromiley Geoffrey³、Butler Ian³ (1.岡山大学理学部、2.岡山大学惑星物質研究所、3.エジンバラ大学地球科学科)

15:45 〜 16:00

[SIT16-07] Impact of thermal core-mantle interaction on back reaction of magnetic field on rotating penetrative convection

*TIRTHARAJ BARMAN¹、SWARANDEEP SAHOO¹ (1.Department of Applied Geophysics, Indian Institute of Technology Indian School of Mines Dhanbad, Jharkhand, India)

16:00 〜 16:15

[SIT16-08] A long-lasting tenuous Ediacaran dynamo: Linkages to inner core nucleation and the evolution of animal life

*John Anthony Tarduno¹、Tinghong Zhou¹、Jack Schneider¹、Wentao Huang²、Rory D. Cottrell¹ (1.University of Rochester、2.TPESER, Chinese Acad. Sci.)

16:15 〜 16:30

[SIT16-09] Sound velocity measurement for high-pressure phase of iron sulfide compounds at high pressure and high temperature

*生田大穣¹、大谷栄治²、福井宏之^3,4、坂巻竜也²、石川大介^4,3、バロンアルフレッド^4,3 (1.岡山大学惑星物質研究所、2.東北大学理学研究科地学専攻、3.高輝度光科学研究センター、4.理化学研究所)

16:30 〜 16:45

[SIT16-10] The thermal and compositional patterns of Earth’s inner core inferred from novel seismic measurement techniques

★Invited Papers

*Lauren Waszek¹、Hrvoje Tkalcic²、Thuany Costa de Lima²、Anatoly Belonoshko³、Jack Muir⁴、Maurizio Mattesini^5,6、Louis Moresi² (1.James Cook University、2.Australian National University、3.Royal Institute of Technology、4.Space Fleet Technologies、5.Complutense University of Madrid、6.Facultad de Ciencias Físicas)

Discussion (16:45 〜 17:00)

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