A chronological study on condensation processes of refractory dusts in the solar protoplanetary disk

• Project/Area Number: 18K13609
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 17010:Space and planetary sciences-related
• Research Institution: Hokkaido University
• Principal Investigator: Kawasaki Noriyuki 北海道大学, 理学研究院, 助教 (50770278)
• Project Period (FY): 2018-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: 隕石 / CAI（難揮発性包有物） / 年代測定 / 二次イオン質量分析法 / 初期太陽系 / 細粒CAI / 太陽系円盤 / Al-Mg年代

Outline of Final Research Achievements

Ca-Al-rich inclusions (CAIs) are composed of minerals that predicted to be high-temperature equilibrium condensate minerals from the solar nebular gas and the oldest objects formed in our Solar System. In this study, we conducted high-precision dating of condensate CAIs and revealed that condensation processes of refractory dusts occurred for at least ~0.4 Myr at the very beginning of the Solar System.

Academic Significance and Societal Importance of the Research Achievements

太陽系進化の歴史解明は，我々の住む太陽系がどのように形成したかを知るのみならず，宇宙空間に無数に存在する惑星系の進化を解明する手がかりとなる，宇宙惑星科学における重要課題の一つである。本研究では，太陽系最初期の固体形成プロセスの年代を，隕石中の物質を測定することで，直接明らかにした。約1500 Kから1700 Kの高温のガスから鉱物が凝縮する現象が，太陽系誕生時から少なくとも約40万間続いていたことが示された。

Research Products

• [Journal Article] Unique angrite-like fragments in a CH3 chondrite reveal a new basaltic planetesimal (2020)
  • Author(s): Zhang Ai-Cheng、Kawasaki Noriyuki、Kuroda Minami、Li Yang、Wang Hua-Pei、Bai Xue-Ning、Sakamoto Naoya、Yin Qing-Zhu、Yurimoto Hisayoshi
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 275 Pages: 48-63
  • DOI: 10.1016/j.gca.2020.02.014
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evidence of metasomatism in the interior of Vesta (2020)
  • Author(s): Zhang Ai-Cheng、Kawasaki Noriyuki、Bao Huiming、Liu Jia、Qin Liping、Kuroda Minami、Gao Jian-Feng、Chen Li-Hui、He Ye、Sakamoto Naoya、Yurimoto Hisayoshi
  • Journal Title: Nature Communications Volume: 11 Issue: 1 Pages: 1289-1289
  • DOI: 10.1038/s41467-020-15049-7
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Variations in initial 26Al/27Al ratios among fine-grained Ca-Al-rich inclusions from reduced CV chondrites (2020)
  • Author(s): Kawasaki Noriyuki、Wada Sohei、Park Changkun、Sakamoto Naoya、Yurimoto Hisayoshi
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 279 Pages: 1-15
  • DOI: 10.1016/j.gca.2020.03.045
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Combined U-corrected Pb-Pb dating and 26Al-26Mg systematics of individual chondrules － Evidence for a reduced initial abundance of 26Al amongst inner Solar System chondrules. (2019)
  • Author(s): Bollard, J., Kawasaki, N., Sakamoto, N., Olsen, M., Itoh, S., Larsen, K., Wielandt, D., Schiller, M., Connelly, J. N., Yurimoto, H. and Bizzarro, M.
  • Journal Title: Geochim. Cosmochim. Acta Volume: 260 Pages: 62-83
  • DOI: 10.1016/j.gca.2019.06.025
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Survivability of presolar oxygen isotopic signature of amorphous silicate dust in the protosolar disk. (2019)
  • Author(s): Yamamoto, D., Tachibana, S., Kawasaki, N. and Yurimoto, H.
  • Journal Title: Meteorit. Planet. Sci. Volume: - Issue: 6 Pages: 1-12
  • DOI: 10.1111/maps.13365
  • Peer Reviewed / Open Access
• [Journal Article] Variations in initial 26Al/27Al ratios among fluffy Type A Ca-Al-rich inclusions from reduced CV chondrites (2019)
  • Author(s): Kawasaki Noriyuki、Park Changkun、Sakamoto Naoya、Park Sun Young、Kim Hyun Na、Kuroda Minami、Yurimoto Hisayoshi
  • Journal Title: Earth and Planetary Science Letters Volume: 511 Pages: 25-35
  • DOI: 10.1016/j.epsl.2019.01.026
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The ion microprobe as a tool for obtaining strontium isotopes in magmatic plagioclase: A case study at Okataina Volcanic Centre, New Zealand (2019)
  • Author(s): Sas May、Kawasaki Noriyuki、Sakamoto Naoya、Shane Phil、Zellmer Georg F.、Kent Adam J.R.、Yurimoto Hisayoshi
  • Journal Title: Chemical Geology Volume: 513 Pages: 153-166
  • DOI: 10.1016/j.chemgeo.2019.03.016
  • NAID: 120006994857
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Al－Mg systematics for partial melting of an Allende type B CAI, Golfball (2020)
  • Author(s): Kawasaki N., Itoh S., Sakamoto N., Simon S. and Yurimoto H.
  • Organizer: Solar-System symposium in Sapporo 3S 2020
  • Int'l Joint Research
• [Presentation] Oxygen isotope distributions of a compound CAI-chondrule object in TIL 07007 chondrite (2020)
  • Author(s): Sakamoto N., Kawasaki N. and Park C.
  • Organizer: Solar-System symposium in Sapporo 3S 2020
  • Int'l Joint Research
• [Presentation] O-isotope Exchange between Amorphous Silicates and Carbon Monoxide Gas in the Solar System (2020)
  • Author(s): Yamamoto D., Tachibana S., Kawasaki N., Kamibayashi M. and Yurimoto H.
  • Organizer: Solar-System symposium in Sapporo 3S 2020
  • Int'l Joint Research
• [Presentation] Effect of Water Fugacity for Oxygen Self Diffusion in Gehlenite (2020)
  • Author(s): Ishikubo S., Kawasaki N., Yamamoto D., Tachibana S. and Yurimoto H.
  • Organizer: Solar-System symposium in Sapporo 3S 2020
  • Int'l Joint Research
• [Presentation] Evidence for an 16O-poor gaseous reservoir during formation of a fine-grained CAI from Northwest Africa 8613 (2020)
  • Author(s): Wada S., Kawasaki N. and Yurimoto H.
  • Organizer: Solar-System symposium in Sapporo 3S 2020
  • Int'l Joint Research
• [Presentation] Variations in Initial 26Al Abundances among Fine-Grained Ca-Al-Rich Inclusions in the Reduced CV Chondrites (2019)
  • Author(s): Kawasaki N., Park C., Sakamoto N. and Yurimoto H.
  • Organizer: 82nd Annual Meeting of the Meteoritical Society
  • Int'l Joint Research
• [Presentation] Oxygen and Al-Mg Isotope Systematics of a Hibonite-Melilite-Rich Fine-Grained CAI in the Reduced CV Chondrite Northwest Africa 8613 (2019)
  • Author(s): Wada S., Kawasaki N. and Yurimoto H.
  • Organizer: 82nd Annual Meeting of the Meteoritical Society
  • Int'l Joint Research
• [Presentation] Extreme 16O-Rich Refractory Inclusions in the Isheyevo Chondrite (2019)
  • Author(s): Sakamoto N. and Kawasaki N.
  • Organizer: 82nd Annual Meeting of the Meteoritical Society
  • Int'l Joint Research
• [Presentation] Constraints on the Cooling Rate from 16O-Rich Perovskite in a Compact Type A CAI from Allende (2019)
  • Author(s): Park C., Sakamoto N., Wakaki S., Kobayashi S., Kawasaki N. and Yurimoto H.
  • Organizer: 82nd Annual Meeting of the Meteoritical Society
  • Int'l Joint Research
• [Presentation] Oxygen Isotope Exchange Between CAI Melt and Water Vapor: An Experimental Study (2019)
  • Author(s): Yamamoto D., Tachibana S., Kawasaki N., Kamibayashi M. and Yurimoto H.
  • Organizer: 82nd Annual Meeting of the Meteoritical Society
  • Int'l Joint Research
• [Presentation] Effect of Water Fugacity for Oxygen Self Diffusion in Gehlenite (2019)
  • Author(s): Ishikubo S., Tachibana S., Kawasaki N., Yamamoto D., Kuroda M. and Yurimoto H.
  • Organizer: 82nd Annual Meeting of the Meteoritical Society
  • Int'l Joint Research
• [Presentation] Unique Angrite-Like Fragments in a CH3 Chondrite Reveal a New Basaltic Planetesimal (2019)
  • Author(s): Zhang A. C., Kawasaki N., Kuroda M., Li Y., Wang H., Bai X. N., Sakamoto N., Yin Q. Z. and Yurimoto H.
  • Organizer: 82nd Annual Meeting of the Meteoritical Society
  • Int'l Joint Research
• [Presentation] Reduced CVコンドライトに含まれる細粒CAIの初生26Al/27Al比の分布 (2019)
  • Author(s): 川崎教行，朴昌根，坂本直哉，圦本尚義
  • Organizer: 日本地球惑星科学連合 連合大会2019年大会
• [Presentation] 非晶質ケイ酸塩と水蒸気との酸素同位体交換速度論から制約される始原的ケイ酸塩ダストの原始惑星系円盤での熱的プロセス (2019)
  • Author(s): 山本大貴，橘省吾，川崎教行，黒田みなみ，坂本直哉，圦本尚義
  • Organizer: 日本地球惑星科学連合 連合大会2019年大会
  • Invited
• [Presentation] NWA8613隕石中のヒボナイトとメリライトに富む細粒難揮発性包有物の酸素同位体分布とAl-Mg年代 (2019)
  • Author(s): 和田壮平，川崎教行，圦本尚義
  • Organizer: 日本地球惑星科学連合 連合大会2019年大会
• [Presentation] Isheyevo隕石中の非常に16Oに富むCAI (2019)
  • Author(s): 坂本直哉，川崎教行
  • Organizer: 日本地球惑星科学連合 連合大会2019年大会
• [Presentation] Compact Type A CAIに局所的に存在するAkermanite成分に富んだメリライトの成因 (2019)
  • Author(s): 鈴村明政，川崎教行，瀬戸雄介，圦本尚義，伊藤正一
  • Organizer: 2019年度 日本地球化学会年会
• [Presentation] CVコンドライト隕石の凝縮CAIの初生26Al/27Al比 (2019)
  • Author(s): 川崎教行，和田壮平，朴昌根，坂本直哉，圦本尚義
  • Organizer: 2019年度 日本地球化学会年会
• [Presentation] NWA8613隕石中のヒボナイトとメリライトに富む細粒難揮発性包有物の酸素同位体分布 (2019)
  • Author(s): 和田壮平，川崎教行，圦本尚義
  • Organizer: 2019年度 日本地球化学会年会
• [Presentation] CVコンドライト中の難揮発性包有物のAl-Mg形成年代分布 (2019)
  • Author(s): 川崎教行，坂本直哉，圦本尚義
  • Organizer: 日本質量分析学会同位体比部会2019
• [Presentation] NWA8613隕石中の細粒CAIの局所酸素・マグネシウム同位体分析 (2019)
  • Author(s): 和田壮平，川崎教行，圦本尚義
  • Organizer: 日本質量分析学会同位体比部会2019
• [Presentation] 二次イオン質量分析法を用いた太陽系の起源と進化の研究 (2019)
  • Author(s): 川崎教行
  • Organizer: 日本質量分析学会イオン反応研究部会 第73回イオン反応研究会講演会
  • Invited
• [Presentation] Hydrogen isotopes, volatile, and refractory trace element composition of melt inclusions and apatite in a consanguineous suite of Apollo 12 olivine basalts (2019)
  • Author(s): Greenwood J. P., Itoh S., Kawasaki N., Sakamoto N. and Yurimoto H.
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] D/H and high volatile content of the Moon: Synthesis of 2009-2019 Hokudai SIMS studies of Apollo Rocks (2019)
  • Author(s): Greenwood J. P., Itoh S., Sakamoto N., Kawasaki N. and Yurimoto H.
  • Organizer: Solar-System symposium in Sapporo 3S 2019
  • Int'l Joint Research
• [Presentation] Oxygen self diffusion in gehlenite: Effect of water fugacity (2019)
  • Author(s): Ishikubo S., Kawasaki N., Tachibana S., Yamamoto D., Kuroda M. and Yurimoto H.
  • Organizer: Solar-System symposium in Sapporo 3S 2019
  • Int'l Joint Research
• [Presentation] 26Al－26Mg systematics of fine-grained CAIs and an AOA in the reduced CV3 chondrites (2019)
  • Author(s): Kawasaki N., Park C., Sakamoto N. and Yurimoto H.
  • Organizer: Solar-System symposium in Sapporo 3S 2019
  • Int'l Joint Research
• [Presentation] Extreme 16O-rich CAIs in Isheyevo chondrite (2019)
  • Author(s): Sakamoto N. and Kawasaki N.
  • Organizer: Solar-System symposium in Sapporo 3S 2019
  • Int'l Joint Research
• [Presentation] Oxygen and Al-Mg isotope systematics of a hibonite-melilite-rich fine-grained CAI in the reduced CV chondrite NWA 8613 (2019)
  • Author(s): Wada S., Kawasaki N. and Yurimoto H.
  • Organizer: Solar-System symposium in Sapporo 3S 2019
  • Int'l Joint Research
• [Presentation] Oxygen isotope exchange between refractory inclusion melt and water vapor (2019)
  • Author(s): Yamamoto D., Kamibayashi M., Kawasaki N., Mori M., Tachibana S. and Yurimoto H.
  • Organizer: Solar-System symposium in Sapporo 3S 2019
  • Int'l Joint Research
• [Presentation] Oxygen Isotope Distribution of the Early Solar System at CAI Formation Age (2019)
  • Author(s): Yurimoto H. and Kawasaki N.
  • Organizer: 15th Annual Meeting Asia Oceania Geoscience Society
  • Int'l Joint Research / Invited
• [Presentation] 太陽系星雲における高温凝縮物と火成CAIの同時期形成 (2018)
  • Author(s): 川崎教行，朴昌根，坂本直哉，朴善英，キム ヒュンア，黒田みなみ，圦本尚義
  • Organizer: 日本地球惑星科学連合 連合大会2018年大会
• [Presentation] Acfer094隕石中の難揮発性新鉄元素に乏しいメタル (2018)
  • Author(s): 坂本直哉，槇納好岐，川崎教行
  • Organizer: 日本地球惑星科学連合 連合大会2018年大会
• [Presentation] 「はやぶさ」から「はやぶさ2」へ ー JAXAサンプルリターンミッション帰還試料キュレーションの現状と計画 (2018)
  • Author(s): 矢田達，川崎教行他（13人中8番目）
  • Organizer: 日本地球惑星科学連合 連合大会2018年大会
• [Presentation] 最初期太陽系におけるダストの高温凝縮と溶融プロセスの年代学 (2018)
  • Author(s): 川崎教行，圦本尚義
  • Organizer: 2018年度 日本地球化学会年会
  • Invited
• [Presentation] 原始太陽系円盤における難揮発性包有物CAIメルトと水蒸気との酸素同位体交換速度論 (2018)
  • Author(s): 山本大貴, 上林海ちる, 川崎教行, 橘省吾, 圦本尚義
  • Organizer: 日本鉱物科学会2018年年会