固体地球科学(S)
セッション小記号 地球内部科学・地球惑星テクトニクス(IT)
セッションID S-IT21
タイトル 和文 Understanding the first 150 million years of the solar system
英文 Understanding the first 150 million years of the solar system
タイトル短縮名 和文 Solar system beginnings
英文 Solar system beginnings
代表コンビーナ 氏名 和文 日比谷 由紀
英文 Yuki Hibiya
所属 和文 東京大学 先端科学技術研究センター
英文 Research Center for Advanced Science and Technology, The University of Tokyo
共同コンビーナ 1 氏名 和文 渡辺 寛子
英文 Hiroko Watanabe
所属 和文 東北大学ニュートリノ科学研究センター
英文 Research Center for Neutrino Science, Tohoku University
共同コンビーナ 2 氏名 和文 William F McDonough
英文 William F McDonough
所属 和文 Department of Earth Science and Research Center for Neutrino Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
英文 Department of Earth Science and Research Center for Neutrino Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
発表言語 E
スコープ 和文
The first 150 million years of solar system history witnessed the formation of the rocky and gas giant planets, the Earth's Moon, and the asteroid belt. We seek to define the absolute and relative timing of these events, particularly in the inner solar system in order to explore hypotheses for their nature, origins, and timing of events at 10^6 to 10^8 time scales. For example, iron meteorites ages span from CAI formation to Mars formation, whereas chondrites ages postdate most early, small planetesimal formation and differentiation. Rocky planets likely grew rapidly by accretion of differentiated planetesimals (e.g., iron meteorite parent bodies) heated by 26Al. In contrast, chondritic parent bodies that accreted post-26Al lifetime remained undifferentiated. Mars and the Earth are equally enriched in refractory elements at 1.9 times CI chondrite, Mars is less volatile-depleted and more oxidized, and both formed Hadean crusts in the presence of surface water (cf., the Moon). We welcome contributions providing insights from physics and chemistry to the mechanisms forming and influencing these processes.
英文
The first 150 million years of solar system history witnessed the formation of the rocky and gas giant planets, the Earth's Moon, and the asteroid belt. We seek to define the absolute and relative timing of these events, particularly in the inner solar system in order to explore hypotheses for their nature, origins, and timing of events at 10^6 to 10^8 time scales. For example, iron meteorites ages span from CAI formation to Mars formation, whereas chondrites ages postdate most early, small planetesimal formation and differentiation. Rocky planets likely grew rapidly by accretion of differentiated planetesimals (e.g., iron meteorite parent bodies) heated by 26Al. In contrast, chondritic parent bodies that accreted post-26Al lifetime remained undifferentiated. Mars and the Earth are equally enriched in refractory elements at 1.9 times CI chondrite, Mars is less volatile-depleted and more oxidized, and both formed Hadean crusts in the presence of surface water (cf., the Moon). We welcome contributions providing insights from physics and chemistry to the mechanisms forming and influencing these processes.
発表方法 口頭および(または)ポスターセッション
招待講演 野津 翔太 (東京大学 大学院理学系研究科 地球惑星科学専攻 地球惑星システム科学講座)
小長谷 智哉 (東京科学大学)
橘 省吾 (東京大学大学院理学系研究科宇宙惑星科学機構)
山本 順司 (九州大学)
時間 講演番号 タイトル 発表者
口頭発表 5月27日 AM2
10:45 - 11:00 SIT21-01 Planet formation and astrochemistry in protoplanetary disks through theoretical modeling and astronomical observations with ALMA 野津 翔太
11:00 - 11:15 SIT21-02 Energetic solar activity from the first million years to present: Insights from noble gases in planetary materials 小長谷 智哉
11:15 - 11:30 SIT21-03 原始太陽系円盤の化学進化-地球外物質からの制約 橘 省吾
11:30 - 11:45 SIT21-04 Potential source materials of terrestrial noble gases inferred from mantle noble gas isotopic compositions 山本 順司
11:45 - 12:00 SIT21-05 Theoretical Insights into Earth's Heat from Geoneutrino Detection by Ocean Bottom Detector: Role of Angular Resolution 許 智豪
12:00 - 12:15 SIT21-06 Composition, origin, and evolution of the Earth and its energy budget William F McDonough
講演番号 タイトル 発表者
ポスター発表 5月27日 PM3
SIT21-P01 Development of Ocean Bottom Detector for Direct Measurement of Mantle Geoneutrinos: Simulation studies and Prototype Development Simran Chauhan
SIT21-P02 From planetesimals to planetary embryos: clues from differentiation of enstatite chondritic body WEI DU
SIT21-P03 The late thermal events of carbonaceous chondrites revealed by I-Xe dating and halogen analyses 日比谷 由紀
SIT21-P04 Deciphering solar system formation by linking the heterogeneity of short-lived and stable isotopes 日比谷 由紀