WEKO3
アイテム
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Numerical simulation of 1-type spherule formation
https://jaxa.repo.nii.ac.jp/records/38412
https://jaxa.repo.nii.ac.jp/records/38412dd97f1a2-a6e1-44c8-a08f-fa4e03a84c88
Item type | 会議発表論文 / Conference Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Numerical simulation of 1-type spherule formation | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 小球 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 堆積物 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 深海 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 化学組成 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 計算機シミュレーション | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | アブレーション | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 蒸発 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 大気圏突入 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 苦土カンラン石 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | spherule | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | sediment | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | deep sea | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | chemical composition | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | computerized simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | ablation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | evaporation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | atmospheric entry | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | forsterite | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
矢田, 達
× 矢田, 達× 関谷, 実× 中村, 智樹× 中島, 邦彦× Sun, Haiping× 高岡, 宣雄× Yada, Toru× Sekiya, Minoru× Nakamura, Tomoki× Nakajima, Kunihiko× Sun, Haiping× Takaoka, Nobuo |
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著者所属 | ||||||
九州大学 理学部 地球惑星科学科 | ||||||
著者所属 | ||||||
九州大学 理学部 地球惑星科学科 | ||||||
著者所属 | ||||||
九州大学 理学部 地球惑星科学科 | ||||||
著者所属 | ||||||
九州大学 工学部 物質科学工学科 | ||||||
著者所属 | ||||||
九州大学 工学部 物質科学工学科 | ||||||
著者所属 | ||||||
九州大学 理学部 地球惑星科学科 | ||||||
著者所属(英) | ||||||
en | ||||||
Kyushu University Department of Earth and Planetary Sciences, Faculty of Sciences | ||||||
著者所属(英) | ||||||
en | ||||||
Kyushu University Department of Earth and Planetary Sciences, Faculty of Sciences | ||||||
著者所属(英) | ||||||
en | ||||||
Kyushu University Department of Earth and Planetary Sciences, Faculty of Sciences | ||||||
著者所属(英) | ||||||
en | ||||||
Kyushu University Department of Materials Sciences and Engineering, Faculty of Sciences | ||||||
著者所属(英) | ||||||
en | ||||||
Kyushu University Department of Materials Sciences and Engineering, Faculty of Sciences | ||||||
著者所属(英) | ||||||
en | ||||||
Kyushu University Department of Earth and Planetary Sciences, Faculty of Sciences | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構宇宙科学研究本部 | |||||
出版者(英) | ||||||
出版者 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS) | |||||
書誌情報 |
第28回月・惑星シンポジウム en : Proceedings of the 28th ISAS Lunar and Planetary Symposium p. 169-172, 発行日 1995-12 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Spherules isolated from deep sea sediments were analyzed for chemical compositions. Three types of internal texture are observed in Ni-bearing I-type spherules: Ni free Fe oxide mantle with Fe-Ni metallic core, Fe-Ni oxide mantle with Fe-Ni metallic core and Fe-Ni oxide spherules without metallic core. Numerical simulation was performed in order to estimate variation of temperatures and radii of I-type spherules, and the force of inertia exerted on them entering the atmosphere. From the result of the simulation, it is figured out that spherules lose more than 90 percent of their original mass by ablation over 1,900 C and that the force of inertia is maximum at last stage of evaporation. Based on the observations of I-type spherules and the numerical simulation of their formation, we propose a model of the formation process of I-type spherules: during ablation, metallic core is off-centered, then surface of the core is exposed to the air due to the strong force of inertia and oxidation reaction might proceed from the exposed core surface. | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0063352045 |