Abstract
The extraterrestrial materials returned from asteroid (162173) Ryugu consist predominantly of low-temperature aqueously formed secondary minerals and are chemically and mineralogically similar to CI (Ivuna-type) carbonaceous chondrites. Here, we show that high-temperature anhydrous primary minerals in Ryugu and CI chondrites exhibit a bimodal distribution of oxygen isotopic compositions: 16O-rich (associated with refractory inclusions) and 16O-poor (associated with chondrules). Both the 16O-rich and 16O-poor minerals probably formed in the inner solar protoplanetary disk and were subsequently transported outward. The abundance ratios of the 16O-rich to 16O-poor minerals in Ryugu and CI chondrites are higher than in other carbonaceous chondrite groups but are similar to that of comet 81P/Wild2, suggesting that Ryugu and CI chondrites accreted in the outer Solar System closer to the accretion region of comets.
Original language | English |
---|---|
Article number | eade2067 |
Journal | Science Advances |
Volume | 8 |
Issue number | 50 |
Number of pages | 10 |
ISSN | 2375-2548 |
DOIs | |
Publication status | Published - 2022 |
Keywords
- PROGRESSIVE AQUEOUS ALTERATION
- CARBONACEOUS CHONDRITES
- CRYSTALLINE SILICATES
- THERMAL HISTORIES
- RICH INCLUSIONS
- SOLAR NEBULA
- OLIVINE
- CHONDRULES
- SYSTEMATICS
- PARTICLES
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Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2. / Kawasaki, Noriyuki; Nagashima, Kazuhide; Sakamoto, Naoya; Matsumoto, Toru; Bajo, Ken-ichi; Wada, Sohei; Igami, Yohei; Miyake, Akira; Noguchi, Takaaki; Yamamoto, Daiki; Russell, Sara S.; Abe, Yoshinari; Aléon, Jérôme; Alexander, Conel M. O'D.; Amari, Sachiko; Amelin, Yuri; Bizzarro, Martin; Bouvier, Audrey; Carlson, Richard W.; Chaussidon, Marc; Choi, Byeon-Gak; Dauphas, Nicolas; Davis, Andrew M.; Di Rocco, Tommaso; Fujiya, Wataru; Fukai, Ryota; Gautam, Ikshu; Haba, Makiko K.; Hibiya, Yuki; Hidaka, Hiroshi; Homma, Hisashi; Hoppe, Peter; Huss, Gary R.; Ichida, Kiyohiro; Iizuka, Tsuyoshi; Ireland, Trevor R.; Ishikawa, Akira; Ito, Motoo; Itoh, Shoichi; Kita, Noriko T.; Kitajima, Kouki; Kleine, Thorsten; Komatani, Shintaro; Krot, Alexander N.; Liu, Ming-Chang; Masuda, Yuki; McKeegan, Kevin D.; Morita, Mayu; Motomura, Kazuko; Moynier, Frederic; Nakai, Izumi; Nguyen, Ann; Nittler, Larry; Onose, Morihiko; Pack, Andreas; Park, Changkun; Piani, Laurette; Qin, Liping; Schonbachler, Maria; Tafla, Lauren; Tang, Haolan; Terada, Kentaro; Terada, Yasuko; Usui, Tomohiro; Wadhwa, Meenakshi; Walker, Richard J.; Yamashita, Katsuyuki; Yin, Qing-Zhu; Yokoyama, Tetsuya; Yoneda, Shigekazu; Young, Edward D.; Yui, Hiroharu; Zhang, Ai-Cheng; Nakamura, Tomoki; Naraoka, Hiroshi; Okazaki, Ryuji; Sakamoto, Kanako; Yabuta, Hikaru; Abe, Masanao; Miyazaki, Akiko; Nakato, Aiko; Nishimura, Masahiro; Okada, Tatsuaki; Yada, Toru; Yogata, Kasumi; Nakazawa, Satoru; Saiki, Takanao; Tanaka, Satoshi; Terui, Fuyuto; Tsuda, Yuichi; Watanabe, Sei-ichiro; Yoshikawa, Makoto; Tachibana, Shogo; Yurimoto, Hisayoshi.
In: Science Advances, Vol. 8, No. 50, eade2067, 2022.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2
AU - Kawasaki, Noriyuki
AU - Nagashima, Kazuhide
AU - Sakamoto, Naoya
AU - Matsumoto, Toru
AU - Bajo, Ken-ichi
AU - Wada, Sohei
AU - Igami, Yohei
AU - Miyake, Akira
AU - Noguchi, Takaaki
AU - Yamamoto, Daiki
AU - Russell, Sara S.
AU - Abe, Yoshinari
AU - Aléon, Jérôme
AU - Alexander, Conel M. O'D.
AU - Amari, Sachiko
AU - Amelin, Yuri
AU - Bizzarro, Martin
AU - Bouvier, Audrey
AU - Carlson, Richard W.
AU - Chaussidon, Marc
AU - Choi, Byeon-Gak
AU - Dauphas, Nicolas
AU - Davis, Andrew M.
AU - Di Rocco, Tommaso
AU - Fujiya, Wataru
AU - Fukai, Ryota
AU - Gautam, Ikshu
AU - Haba, Makiko K.
AU - Hibiya, Yuki
AU - Hidaka, Hiroshi
AU - Homma, Hisashi
AU - Hoppe, Peter
AU - Huss, Gary R.
AU - Ichida, Kiyohiro
AU - Iizuka, Tsuyoshi
AU - Ireland, Trevor R.
AU - Ishikawa, Akira
AU - Ito, Motoo
AU - Itoh, Shoichi
AU - Kita, Noriko T.
AU - Kitajima, Kouki
AU - Kleine, Thorsten
AU - Komatani, Shintaro
AU - Krot, Alexander N.
AU - Liu, Ming-Chang
AU - Masuda, Yuki
AU - McKeegan, Kevin D.
AU - Morita, Mayu
AU - Motomura, Kazuko
AU - Moynier, Frederic
AU - Nakai, Izumi
AU - Nguyen, Ann
AU - Nittler, Larry
AU - Onose, Morihiko
AU - Pack, Andreas
AU - Park, Changkun
AU - Piani, Laurette
AU - Qin, Liping
AU - Schonbachler, Maria
AU - Tafla, Lauren
AU - Tang, Haolan
AU - Terada, Kentaro
AU - Terada, Yasuko
AU - Usui, Tomohiro
AU - Wadhwa, Meenakshi
AU - Walker, Richard J.
AU - Yamashita, Katsuyuki
AU - Yin, Qing-Zhu
AU - Yokoyama, Tetsuya
AU - Yoneda, Shigekazu
AU - Young, Edward D.
AU - Yui, Hiroharu
AU - Zhang, Ai-Cheng
AU - Nakamura, Tomoki
AU - Naraoka, Hiroshi
AU - Okazaki, Ryuji
AU - Sakamoto, Kanako
AU - Yabuta, Hikaru
AU - Abe, Masanao
AU - Miyazaki, Akiko
AU - Nakato, Aiko
AU - Nishimura, Masahiro
AU - Okada, Tatsuaki
AU - Yada, Toru
AU - Yogata, Kasumi
AU - Nakazawa, Satoru
AU - Saiki, Takanao
AU - Tanaka, Satoshi
AU - Terui, Fuyuto
AU - Tsuda, Yuichi
AU - Watanabe, Sei-ichiro
AU - Yoshikawa, Makoto
AU - Tachibana, Shogo
AU - Yurimoto, Hisayoshi
PY - 2022
Y1 - 2022
N2 - The extraterrestrial materials returned from asteroid (162173) Ryugu consist predominantly of low-temperature aqueously formed secondary minerals and are chemically and mineralogically similar to CI (Ivuna-type) carbonaceous chondrites. Here, we show that high-temperature anhydrous primary minerals in Ryugu and CI chondrites exhibit a bimodal distribution of oxygen isotopic compositions: 16O-rich (associated with refractory inclusions) and 16O-poor (associated with chondrules). Both the 16O-rich and 16O-poor minerals probably formed in the inner solar protoplanetary disk and were subsequently transported outward. The abundance ratios of the 16O-rich to 16O-poor minerals in Ryugu and CI chondrites are higher than in other carbonaceous chondrite groups but are similar to that of comet 81P/Wild2, suggesting that Ryugu and CI chondrites accreted in the outer Solar System closer to the accretion region of comets.
AB - The extraterrestrial materials returned from asteroid (162173) Ryugu consist predominantly of low-temperature aqueously formed secondary minerals and are chemically and mineralogically similar to CI (Ivuna-type) carbonaceous chondrites. Here, we show that high-temperature anhydrous primary minerals in Ryugu and CI chondrites exhibit a bimodal distribution of oxygen isotopic compositions: 16O-rich (associated with refractory inclusions) and 16O-poor (associated with chondrules). Both the 16O-rich and 16O-poor minerals probably formed in the inner solar protoplanetary disk and were subsequently transported outward. The abundance ratios of the 16O-rich to 16O-poor minerals in Ryugu and CI chondrites are higher than in other carbonaceous chondrite groups but are similar to that of comet 81P/Wild2, suggesting that Ryugu and CI chondrites accreted in the outer Solar System closer to the accretion region of comets.
KW - PROGRESSIVE AQUEOUS ALTERATION
KW - CARBONACEOUS CHONDRITES
KW - CRYSTALLINE SILICATES
KW - THERMAL HISTORIES
KW - RICH INCLUSIONS
KW - SOLAR NEBULA
KW - OLIVINE
KW - CHONDRULES
KW - SYSTEMATICS
KW - PARTICLES
U2 - 10.1126/sciadv.ade2067
DO - 10.1126/sciadv.ade2067
M3 - Journal article
C2 - 36525483
VL - 8
JO - Science advances
JF - Science advances
SN - 2375-2548
IS - 50
M1 - eade2067
ER -