Pervasive aqueous alteration in the early Solar System revealed by potassium isotopic variations in Ryugu samples and carbonaceous chondrites

Yan Hu; Frédéric Moynier; Wei Dai; Marine Paquet; Tetsuya Yokoyama; Yoshinari Abe; Jérôme Aléon; Conel M.O.D. Alexander; Sachiko Amari; Yuri Amelin; Ken ichi Bajo; Martin Bizzarro; Audrey Bouvier; Richard W. Carlson; Marc Chaussidon; Byeon Gak Choi; Nicolas Dauphas; Andrew M. Davis; Tommaso Di Rocco; Wataru Fujiya; Ryota Fukai; Ikshu Gautam; Makiko K. Haba; Yuki Hibiya; Hiroshi Hidaka; Hisashi Homma; Peter Hoppe; Gary R. Huss; Kiyohiro Ichida; Tsuyoshi Iizuka; Trevor R. Ireland; Akira Ishikawa; Shoichi Itoh; Noriyuki Kawasaki; Noriko T. Kita; Koki Kitajima; Thorsten Kleine; Shintaro Komatani; Alexander N. Krot; Ming Chang Liu; Yuki Masuda; Mayu Morita; Kazuko Motomura; Izumi Nakai; Kazuhide Nagashima; David Nesvorný; Ann Nguyen; Larry Nittler; Morihiko Onose; Andreas Pack; Changkun Park; Laurette Piani; Liping Qin; Sara S. Russell; Naoya Sakamoto; Maria Schönbächler; Lauren Tafla; Haolan Tang; Kentaro Terada; Yasuko Terada; Tomohiro Usui; Sohei Wada; Meenakshi Wadhwa; Richard J. Walker; Katsuyuki Yamashita; Qing Zhu Yin; Shigekazu Yoneda; Edward D. Young; Hiroharu Yui; Ai Cheng Zhang; Tomoki Nakamura; Hiroshi Naraoka; Takaaki Noguchi; Ryuji Okazaki; Kanako Sakamoto; Hikaru Yabuta; Masanao Abe; Akiko Miyazaki; Aiko Nakato; Masahiro Nishimura; Tatsuaki Okada; Toru Yada; Kasumi Yogata; Satoru Nakazawa; Takanao Saiki; Satoshi Tanaka; Fuyuto Terui; Yuichi Tsuda; Sei ichiro Watanabe; Makoto Yoshikawa; Shogo Tachibana; Hisayoshi Yurimoto

doi:10.1016/j.icarus.2023.115884

Pervasive aqueous alteration in the early Solar System revealed by potassium isotopic variations in Ryugu samples and carbonaceous chondrites

Yan Hu, Frédéric Moynier, Wei Dai, Marine Paquet, Tetsuya Yokoyama, Yoshinari Abe, Jérôme Aléon, Conel M.O.D. Alexander, Sachiko Amari, Yuri Amelin, Ken ichi Bajo, Martin Bizzarro, Audrey Bouvier, Richard W. Carlson, Marc Chaussidon, Byeon Gak Choi, Nicolas Dauphas, Andrew M. Davis, Tommaso Di Rocco, Wataru FujiyaRyota Fukai, Ikshu Gautam, Makiko K. Haba, Yuki Hibiya, Hiroshi Hidaka, Hisashi Homma, Peter Hoppe, Gary R. Huss, Kiyohiro Ichida, Tsuyoshi Iizuka, Trevor R. Ireland, Akira Ishikawa, Shoichi Itoh, Noriyuki Kawasaki, Noriko T. Kita, Koki Kitajima, Thorsten Kleine, Shintaro Komatani, Alexander N. Krot, Ming Chang Liu, Yuki Masuda, Mayu Morita, Kazuko Motomura, Izumi Nakai, Kazuhide Nagashima, David Nesvorný, Ann Nguyen, Larry Nittler, Morihiko Onose, Andreas Pack, Changkun Park, Laurette Piani, Liping Qin, Sara S. Russell, Naoya Sakamoto, Maria Schönbächler, Lauren Tafla, Haolan Tang, Kentaro Terada, Yasuko Terada, Tomohiro Usui, Sohei Wada, Meenakshi Wadhwa, Richard J. Walker, Katsuyuki Yamashita, Qing Zhu Yin, Shigekazu Yoneda, Edward D. Young, Hiroharu Yui, Ai Cheng Zhang, Tomoki Nakamura, Hiroshi Naraoka, Takaaki Noguchi, Ryuji Okazaki, Kanako Sakamoto, Hikaru Yabuta, Masanao Abe, Akiko Miyazaki, Aiko Nakato, Masahiro Nishimura, Tatsuaki Okada, Toru Yada, Kasumi Yogata, Satoru Nakazawa, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Yuichi Tsuda, Sei ichiro Watanabe, Makoto Yoshikawa, Shogo Tachibana, Hisayoshi Yurimoto

Earth and Space Exploration, School of (SESE)

Research output: Contribution to journal › Article › peer-review

Abstract

C-type asteroids are the presumed home to carbonaceous chondrites, some of which contain abundant life-forming volatiles and organics. For the first time, samples from a C-type asteroid (162173 Ryugu) were successfully returned to Earth by JAXA's Hayabusa2 mission. These pristine samples, uncontaminated by the terrestrial environment, allow a direct comparison with carbonaceous chondrites. This study reports the stable K isotopic compositions (expressed as δ⁴¹K) of Ryugu samples and seven carbonaceous chondrites to constrain the origin of K isotopic variations in the early Solar System. Three aliquots of Ryugu particles collected at two touchdown sites have identical δ⁴¹K values, averaged at −0.194 ± 0.038‰ (2SD). The K isotopic composition of Ryugu falls within the range of δ⁴¹K values measured on representative CI chondrites, and together, they define an average δ⁴¹K value of −0.185 ± 0.078‰ (2SE), which provides the current best estimate of the K isotopic composition of the bulk Solar System. Samples of CI chondrites with δ⁴¹K values that deviate from this range likely reflect terrestrial contaminations or compositional heterogeneities at sampled sizes. In addition to CI chondrites, substantial K isotopic variability is observed in other carbonaceous chondrites and within individual chondritic groups, with δ⁴¹K values inversely correlated with K abundances in many cases. These observations indicate widespread fluid activity occurred in chondrite parent bodies, which significantly altered the original K abundances and isotopic compositions of chondrules and matrices established at their accretion.

Original language	English (US)
Article number	115884
Journal	Icarus
Volume	409
DOIs	https://doi.org/10.1016/j.icarus.2023.115884
State	Published - Feb 2024

Keywords

Aqueous alteration
Asteroid Ryugu
Carbonaceous chondrites
Hayabusa2 mission
Stable potassium isotopes

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1016/j.icarus.2023.115884

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Hu, Y., Moynier, F., Dai, W., Paquet, M., Yokoyama, T., Abe, Y., Aléon, J., Alexander, C. M. O. D., Amari, S., Amelin, Y., Bajo, K. I., Bizzarro, M., Bouvier, A., Carlson, R. W., Chaussidon, M., Choi, B. G., Dauphas, N., Davis, A. M., Di Rocco, T., ... Yurimoto, H. (2024). Pervasive aqueous alteration in the early Solar System revealed by potassium isotopic variations in Ryugu samples and carbonaceous chondrites. Icarus, 409, Article 115884. https://doi.org/10.1016/j.icarus.2023.115884

Hu, Y, Moynier, F, Dai, W, Paquet, M, Yokoyama, T, Abe, Y, Aléon, J, Alexander, CMOD, Amari, S, Amelin, Y, Bajo, KI, Bizzarro, M, Bouvier, A, Carlson, RW, Chaussidon, M, Choi, BG, Dauphas, N, Davis, AM, Di Rocco, T, Fujiya, W, Fukai, R, Gautam, I, Haba, MK, Hibiya, Y, Hidaka, H, Homma, H, Hoppe, P, Huss, GR, Ichida, K, Iizuka, T, Ireland, TR, Ishikawa, A, Itoh, S, Kawasaki, N, Kita, NT, Kitajima, K, Kleine, T, Komatani, S, Krot, AN, Liu, MC, Masuda, Y, Morita, M, Motomura, K, Nakai, I, Nagashima, K, Nesvorný, D, Nguyen, A, Nittler, L, Onose, M, Pack, A, Park, C, Piani, L, Qin, L, Russell, SS, Sakamoto, N, Schönbächler, M, Tafla, L, Tang, H, Terada, K, Terada, Y, Usui, T, Wada, S, Wadhwa, M, Walker, RJ, Yamashita, K, Yin, QZ, Yoneda, S, Young, ED, Yui, H, Zhang, AC, Nakamura, T, Naraoka, H, Noguchi, T, Okazaki, R, Sakamoto, K, Yabuta, H, Abe, M, Miyazaki, A, Nakato, A, Nishimura, M, Okada, T, Yada, T, Yogata, K, Nakazawa, S, Saiki, T, Tanaka, S, Terui, F, Tsuda, Y, Watanabe, SI, Yoshikawa, M, Tachibana, S & Yurimoto, H 2024, 'Pervasive aqueous alteration in the early Solar System revealed by potassium isotopic variations in Ryugu samples and carbonaceous chondrites', Icarus, vol. 409, 115884. https://doi.org/10.1016/j.icarus.2023.115884

@article{2fc2d5d6a8df4d7f99b8c40d7ca1a28c,

title = "Pervasive aqueous alteration in the early Solar System revealed by potassium isotopic variations in Ryugu samples and carbonaceous chondrites",

abstract = "C-type asteroids are the presumed home to carbonaceous chondrites, some of which contain abundant life-forming volatiles and organics. For the first time, samples from a C-type asteroid (162173 Ryugu) were successfully returned to Earth by JAXA's Hayabusa2 mission. These pristine samples, uncontaminated by the terrestrial environment, allow a direct comparison with carbonaceous chondrites. This study reports the stable K isotopic compositions (expressed as δ41K) of Ryugu samples and seven carbonaceous chondrites to constrain the origin of K isotopic variations in the early Solar System. Three aliquots of Ryugu particles collected at two touchdown sites have identical δ41K values, averaged at −0.194 ± 0.038‰ (2SD). The K isotopic composition of Ryugu falls within the range of δ41K values measured on representative CI chondrites, and together, they define an average δ41K value of −0.185 ± 0.078‰ (2SE), which provides the current best estimate of the K isotopic composition of the bulk Solar System. Samples of CI chondrites with δ41K values that deviate from this range likely reflect terrestrial contaminations or compositional heterogeneities at sampled sizes. In addition to CI chondrites, substantial K isotopic variability is observed in other carbonaceous chondrites and within individual chondritic groups, with δ41K values inversely correlated with K abundances in many cases. These observations indicate widespread fluid activity occurred in chondrite parent bodies, which significantly altered the original K abundances and isotopic compositions of chondrules and matrices established at their accretion.",

keywords = "Aqueous alteration, Asteroid Ryugu, Carbonaceous chondrites, Hayabusa2 mission, Stable potassium isotopes",

author = "Yan Hu and Fr{\'e}d{\'e}ric Moynier and Wei Dai and Marine Paquet and Tetsuya Yokoyama and Yoshinari Abe and J{\'e}r{\^o}me Al{\'e}on and Alexander, {Conel M.O.D.} and Sachiko Amari and Yuri Amelin and Bajo, {Ken ichi} and Martin Bizzarro and Audrey Bouvier and Carlson, {Richard W.} and Marc Chaussidon and Choi, {Byeon Gak} and Nicolas Dauphas and Davis, {Andrew M.} and {Di Rocco}, Tommaso and Wataru Fujiya and Ryota Fukai and Ikshu Gautam and Haba, {Makiko K.} and Yuki Hibiya and Hiroshi Hidaka and Hisashi Homma and Peter Hoppe and Huss, {Gary R.} and Kiyohiro Ichida and Tsuyoshi Iizuka and Ireland, {Trevor R.} and Akira Ishikawa and Shoichi Itoh and Noriyuki Kawasaki and Kita, {Noriko T.} and Koki Kitajima and Thorsten Kleine and Shintaro Komatani and Krot, {Alexander N.} and Liu, {Ming Chang} and Yuki Masuda and Mayu Morita and Kazuko Motomura and Izumi Nakai and Kazuhide Nagashima and David Nesvorn{\'y} and Ann Nguyen and Larry Nittler and Morihiko Onose and Andreas Pack and Changkun Park and Laurette Piani and Liping Qin and Russell, {Sara S.} and Naoya Sakamoto and Maria Sch{\"o}nb{\"a}chler and Lauren Tafla and Haolan Tang and Kentaro Terada and Yasuko Terada and Tomohiro Usui and Sohei Wada and Meenakshi Wadhwa and Walker, {Richard J.} and Katsuyuki Yamashita and Yin, {Qing Zhu} and Shigekazu Yoneda and Young, {Edward D.} and Hiroharu Yui and Zhang, {Ai Cheng} and Tomoki Nakamura and Hiroshi Naraoka and Takaaki Noguchi and Ryuji Okazaki and Kanako Sakamoto and Hikaru Yabuta and Masanao Abe and Akiko Miyazaki and Aiko Nakato and Masahiro Nishimura and Tatsuaki Okada and Toru Yada and Kasumi Yogata and Satoru Nakazawa and Takanao Saiki and Satoshi Tanaka and Fuyuto Terui and Yuichi Tsuda and Watanabe, {Sei ichiro} and Makoto Yoshikawa and Shogo Tachibana and Hisayoshi Yurimoto",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Inc.",

year = "2024",

month = feb,

doi = "10.1016/j.icarus.2023.115884",

language = "English (US)",

volume = "409",

journal = "Icarus",

issn = "0019-1035",

publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - Pervasive aqueous alteration in the early Solar System revealed by potassium isotopic variations in Ryugu samples and carbonaceous chondrites

AU - Hu, Yan

AU - Moynier, Frédéric

AU - Dai, Wei

AU - Paquet, Marine

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, Koki

AU - Kleine, Thorsten

AU - Komatani, Shintaro

AU - Krot, Alexander N.

AU - Liu, Ming Chang

AU - Masuda, Yuki

AU - Morita, Mayu

AU - Motomura, Kazuko

AU - Nakai, Izumi

AU - Nagashima, Kazuhide

AU - Nesvorný, David

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

PY - 2024/2

Y1 - 2024/2

N2 - C-type asteroids are the presumed home to carbonaceous chondrites, some of which contain abundant life-forming volatiles and organics. For the first time, samples from a C-type asteroid (162173 Ryugu) were successfully returned to Earth by JAXA's Hayabusa2 mission. These pristine samples, uncontaminated by the terrestrial environment, allow a direct comparison with carbonaceous chondrites. This study reports the stable K isotopic compositions (expressed as δ41K) of Ryugu samples and seven carbonaceous chondrites to constrain the origin of K isotopic variations in the early Solar System. Three aliquots of Ryugu particles collected at two touchdown sites have identical δ41K values, averaged at −0.194 ± 0.038‰ (2SD). The K isotopic composition of Ryugu falls within the range of δ41K values measured on representative CI chondrites, and together, they define an average δ41K value of −0.185 ± 0.078‰ (2SE), which provides the current best estimate of the K isotopic composition of the bulk Solar System. Samples of CI chondrites with δ41K values that deviate from this range likely reflect terrestrial contaminations or compositional heterogeneities at sampled sizes. In addition to CI chondrites, substantial K isotopic variability is observed in other carbonaceous chondrites and within individual chondritic groups, with δ41K values inversely correlated with K abundances in many cases. These observations indicate widespread fluid activity occurred in chondrite parent bodies, which significantly altered the original K abundances and isotopic compositions of chondrules and matrices established at their accretion.

AB - C-type asteroids are the presumed home to carbonaceous chondrites, some of which contain abundant life-forming volatiles and organics. For the first time, samples from a C-type asteroid (162173 Ryugu) were successfully returned to Earth by JAXA's Hayabusa2 mission. These pristine samples, uncontaminated by the terrestrial environment, allow a direct comparison with carbonaceous chondrites. This study reports the stable K isotopic compositions (expressed as δ41K) of Ryugu samples and seven carbonaceous chondrites to constrain the origin of K isotopic variations in the early Solar System. Three aliquots of Ryugu particles collected at two touchdown sites have identical δ41K values, averaged at −0.194 ± 0.038‰ (2SD). The K isotopic composition of Ryugu falls within the range of δ41K values measured on representative CI chondrites, and together, they define an average δ41K value of −0.185 ± 0.078‰ (2SE), which provides the current best estimate of the K isotopic composition of the bulk Solar System. Samples of CI chondrites with δ41K values that deviate from this range likely reflect terrestrial contaminations or compositional heterogeneities at sampled sizes. In addition to CI chondrites, substantial K isotopic variability is observed in other carbonaceous chondrites and within individual chondritic groups, with δ41K values inversely correlated with K abundances in many cases. These observations indicate widespread fluid activity occurred in chondrite parent bodies, which significantly altered the original K abundances and isotopic compositions of chondrules and matrices established at their accretion.

KW - Aqueous alteration

KW - Asteroid Ryugu

KW - Carbonaceous chondrites

KW - Hayabusa2 mission

KW - Stable potassium isotopes

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U2 - 10.1016/j.icarus.2023.115884

DO - 10.1016/j.icarus.2023.115884

M3 - Article

AN - SCOPUS:85177786366

SN - 0019-1035

VL - 409

JO - Icarus

JF - Icarus

M1 - 115884

ER -

Pervasive aqueous alteration in the early Solar System revealed by potassium isotopic variations in Ryugu samples and carbonaceous chondrites

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