Abstract
The isotopic compositions of samples returned from Cb-type asteroid Ryugu and Ivuna-type (CI) chondrites are distinct from other carbonaceous chondrites, which has led to the suggestion that Ryugu/CI chondrites formed in a different region of the accretion disk, possibly around the orbits of Uranus and Neptune. We show that, like for Fe, Ryugu and CI chondrites also have indistinguishable Ni isotope anomalies, which differ from those of other carbonaceous chondrites. We propose that this unique Fe and Ni isotopic composition reflects different accretion efficiencies of small FeNi metal grains among the carbonaceous chondrite parent bodies. The CI chondrites incorporated these grains more efficiently, possibly because they formed at the end of the disk’s lifetime, when planetesimal formation was also triggered by photoevaporation of the disk. Isotopic variations among carbonaceous chondrites may thus reflect fractionation of distinct dust components from a common reservoir, implying CI chondrites/Ryugu may have formed in the same region of the accretion disk as other carbonaceous chondrites.
Original language | English |
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Article number | eadp2426 |
Journal | Science Advances |
Volume | 10 |
Issue number | 39 |
Number of pages | 13 |
ISSN | 2375-2548 |
DOIs | |
Publication status | Published - 2024 |
Bibliographical note
Publisher Copyright:© 2024 the Authors, some rights reserved.
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The Ni isotopic composition of Ryugu reveals a common accretion region for carbonaceous chondrites. / Spitzer, Fridolin; Kleine, Thorsten; Burkhardt, Christoph; Hopp, Timo; Yokoyama, Tetsuya; Abe, Yoshinari; Aléon, Jérôme; Alexander, Conel M. O'D.; Amari, Sachiko; Amelin, Yuri; Bajo, Ken-ichi; 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; Itoh, Shoichi; Kawasaki, Noriyuki; Kita, Noriko T.; Kitajima, Kouki; Komatani, Shintaro; Krot, Alexander N.; Liu, Ming-Chang; Masuda, Yuki; Morita, Mayu; Moynier, Fréderic; Motomura, Kazuko; Nakai, Izumi; Nagashima, Kazuhide; Nguyen, Ann; Nittler, Larry; Onose, Morihiko; Pack, Andreas; Park, Changkun; Piani, Laurette; Qin, Liping; Russell, Sara S.; Sakamoto, Naoya; Schönbächler, Maria; Tafla, Lauren; Tang, Haolan; Terada, Kentaro; Terada, Yasuko; Usui, Tomohiro; Wada, Sohei; Wadhwa, Meenakshi; Walker, Richard J.; Yamashita, Katsuyuki; Yin, Qing-Zhu; Yoneda, Shigekazu; Young, Edward D.; Yui, Hiroharu; Zhang, Ai-Cheng; Nakamura, Tomoki; Naraoka, Hiroshi; Noguchi, Takaaki; 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. 10, No. 39, eadp2426, 2024.Research output: Contribution to journal › Journal article › Research › peer-review
}
TY - JOUR
T1 - The Ni isotopic composition of Ryugu reveals a common accretion region for carbonaceous chondrites
AU - Spitzer, Fridolin
AU - Kleine, Thorsten
AU - Burkhardt, Christoph
AU - Hopp, Timo
AU - Yokoyama, Tetsuya
AU - Abe, Yoshinari
AU - Aléon, Jérôme
AU - Alexander, Conel M. O'D.
AU - Amari, Sachiko
AU - Amelin, Yuri
AU - Bajo, Ken-ichi
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 - Itoh, Shoichi
AU - Kawasaki, Noriyuki
AU - Kita, Noriko T.
AU - Kitajima, Kouki
AU - Komatani, Shintaro
AU - Krot, Alexander N.
AU - Liu, Ming-Chang
AU - Masuda, Yuki
AU - Morita, Mayu
AU - Moynier, Fréderic
AU - Motomura, Kazuko
AU - Nakai, Izumi
AU - Nagashima, Kazuhide
AU - Nguyen, Ann
AU - Nittler, Larry
AU - Onose, Morihiko
AU - Pack, Andreas
AU - Park, Changkun
AU - Piani, Laurette
AU - Qin, Liping
AU - Russell, Sara S.
AU - Sakamoto, Naoya
AU - Schönbächler, Maria
AU - Tafla, Lauren
AU - Tang, Haolan
AU - Terada, Kentaro
AU - Terada, Yasuko
AU - Usui, Tomohiro
AU - Wada, Sohei
AU - Wadhwa, Meenakshi
AU - Walker, Richard J.
AU - Yamashita, Katsuyuki
AU - Yin, Qing-Zhu
AU - Yoneda, Shigekazu
AU - Young, Edward D.
AU - Yui, Hiroharu
AU - Zhang, Ai-Cheng
AU - Nakamura, Tomoki
AU - Naraoka, Hiroshi
AU - Noguchi, Takaaki
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
N1 - Publisher Copyright: © 2024 the Authors, some rights reserved.
PY - 2024
Y1 - 2024
N2 - The isotopic compositions of samples returned from Cb-type asteroid Ryugu and Ivuna-type (CI) chondrites are distinct from other carbonaceous chondrites, which has led to the suggestion that Ryugu/CI chondrites formed in a different region of the accretion disk, possibly around the orbits of Uranus and Neptune. We show that, like for Fe, Ryugu and CI chondrites also have indistinguishable Ni isotope anomalies, which differ from those of other carbonaceous chondrites. We propose that this unique Fe and Ni isotopic composition reflects different accretion efficiencies of small FeNi metal grains among the carbonaceous chondrite parent bodies. The CI chondrites incorporated these grains more efficiently, possibly because they formed at the end of the disk’s lifetime, when planetesimal formation was also triggered by photoevaporation of the disk. Isotopic variations among carbonaceous chondrites may thus reflect fractionation of distinct dust components from a common reservoir, implying CI chondrites/Ryugu may have formed in the same region of the accretion disk as other carbonaceous chondrites.
AB - The isotopic compositions of samples returned from Cb-type asteroid Ryugu and Ivuna-type (CI) chondrites are distinct from other carbonaceous chondrites, which has led to the suggestion that Ryugu/CI chondrites formed in a different region of the accretion disk, possibly around the orbits of Uranus and Neptune. We show that, like for Fe, Ryugu and CI chondrites also have indistinguishable Ni isotope anomalies, which differ from those of other carbonaceous chondrites. We propose that this unique Fe and Ni isotopic composition reflects different accretion efficiencies of small FeNi metal grains among the carbonaceous chondrite parent bodies. The CI chondrites incorporated these grains more efficiently, possibly because they formed at the end of the disk’s lifetime, when planetesimal formation was also triggered by photoevaporation of the disk. Isotopic variations among carbonaceous chondrites may thus reflect fractionation of distinct dust components from a common reservoir, implying CI chondrites/Ryugu may have formed in the same region of the accretion disk as other carbonaceous chondrites.
U2 - 10.1126/sciadv.adp2426
DO - 10.1126/sciadv.adp2426
M3 - Journal article
C2 - 39331721
AN - SCOPUS:85205276108
VL - 10
JO - Science advances
JF - Science advances
SN - 2375-2548
IS - 39
M1 - eadp2426
ER -