The Solar System calcium isotopic composition inferred from Ryugu samples

F. Moynier; W. Dai; T. Yokoyama; Y. Hu; M. Paquet; Y. Abe; J. Aléon; C. M.O.D. Alexander; S. Amari; Y. Amelin; K. I. Bajo; M. Bizzarro; A. Bouvier; R. W. Carlson; M. Chaussidon; B. G. Choi; N. Dauphas; A. M. Davis; T. Di Rocco; W. Fujiya; R. Fukai; I. Gautam; M. K. Haba; Y. Hibiya; H. Hidaka; H. Homma; P. Hoppe; G. R. Huss; K. Ichida; T. Iizuka; T. R. Ireland; A. Ishikawa; M. Ito; S. Itoh; N. Kawasaki; N. T. Kita; K. Kitajima; T. Kleine; S. Komatani; A. N. Krot; M. C. Liu; Y. Masuda; K. D. McKeegan; M. Morita; K. Motomura; I. Nakai; K. Nagashima; D. Nesvorný; A. Nguyen; L. Nittler; M. Onose; A. Pack; C. Park; L. Piani; L. Qin; S. S. Russell; N. Sakamoto; M. Schönbächler; L. Tafla; H. Tang; K. Terada; Y. Terada; T. Usui; S. Wada; M. Wadhwa; R. J. Walker; K. Yamashita; Q. Z. Yin; S. Yoneda; E. D. Young; H. Yui; A. C. Zhang; T. Nakamura; H. Naraoka; T. Noguchi; R. Okazaki; K. Sakamoto; H. Yabuta; M. Abe; A. Miyazaki; A. Nakato; M. Nishimura; T. Okada; T. Yada; K. Yogata; S. Nakazawa; T. Saiki; S. Tanaka; F. Terui; Y. Tsuda; S. I. Watanabe; M. Yoshikawa; S. Tachibana; H. Yurimoto

doi:10.7185/geochemlet.2238

The Solar System calcium isotopic composition inferred from Ryugu samples

F. Moynier, W. Dai, T. Yokoyama, Y. Hu, M. Paquet, Y. Abe, J. Aléon, C. M.O.D. Alexander, S. Amari, Y. Amelin, K. I. Bajo, M. Bizzarro, A. Bouvier, R. W. Carlson, M. Chaussidon, B. G. Choi, N. Dauphas, A. M. Davis, T. Di Rocco, W. FujiyaR. Fukai, I. Gautam, M. K. Haba, Y. Hibiya, H. Hidaka, H. Homma, P. Hoppe, G. R. Huss, K. Ichida, T. Iizuka, T. R. Ireland, A. Ishikawa, M. Ito, S. Itoh, N. Kawasaki, N. T. Kita, K. Kitajima, T. Kleine, S. Komatani, A. N. Krot, M. C. Liu, Y. Masuda, K. D. McKeegan, M. Morita, K. Motomura, I. Nakai, K. Nagashima, D. Nesvorný, A. Nguyen, L. Nittler, M. Onose, A. Pack, C. Park, L. Piani, L. Qin, S. S. Russell, N. Sakamoto, M. Schönbächler, L. Tafla, H. Tang, K. Terada, Y. Terada, T. Usui, S. Wada, M. Wadhwa, R. J. Walker, K. Yamashita, Q. Z. Yin, S. Yoneda, E. D. Young, H. Yui, A. C. Zhang, T. Nakamura, H. Naraoka, T. Noguchi, R. Okazaki, K. Sakamoto, H. Yabuta, M. Abe, A. Miyazaki, A. Nakato, M. Nishimura, T. Okada, T. Yada, K. Yogata, S. Nakazawa, T. Saiki, S. Tanaka, F. Terui, Y. Tsuda, S. I. Watanabe, M. Yoshikawa, S. Tachibana, H. Yurimoto

Earth and Space Exploration, School of (SESE)

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

15 Scopus citations

Abstract

The Hayabusa2 spacecraft has returned samples from the Cb-type asteroid (162173) Ryugu to Earth. Previous petrological and chemical analyses support a close link between Ryugu and CI chondrites that are presumed to be chemically the most primitive meteorites with a solar-like composition. However, Ryugu samples are highly enriched in Ca compared to typical CI chondrites. To identify the cause of this discrepancy, here we report stable Ca isotopic data (expressed as δ^44/40Ca_SRM915a) for returned Ryugu samples collected from two sites. We found that samples from both sites have similar δ^44/40Ca_SRM915a (0.58 ± 0.03 % and 0.55 ± 0.08 %, 2 s.d.) that fall within the range defined by CIs. This isotopic similarity suggests that the Ca budget of CIs and Ryugu samples is dominated by carbonates, and the variably higher Ca contents in Ryugu samples are due to the abundant carbonates. Precipitation of carbonates on Ryugu likely coincided with a major episode of aqueous activity dated to have occurred ∼5 Myr after Solar System formation. Based on the pristine Ryugu samples, the average δ^44/40Ca_SRM915a of the Solar System is defined to be 0.57 ± 0.04 % (2 s.d.).

Original language	English (US)
Pages (from-to)	1-6
Number of pages	6
Journal	Geochemical Perspectives Letters
Volume	24
DOIs	https://doi.org/10.7185/geochemlet.2238
State	Published - 2022

ASJC Scopus subject areas

Environmental Chemistry
Geology
Geochemistry and Petrology

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10.7185/geochemlet.2238

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Moynier, F., Dai, W., Yokoyama, T., Hu, Y., Paquet, M., 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. (2022). The Solar System calcium isotopic composition inferred from Ryugu samples. Geochemical Perspectives Letters, 24, 1-6. https://doi.org/10.7185/geochemlet.2238

Moynier, F, Dai, W, Yokoyama, T, Hu, Y, Paquet, M, 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, Ito, M, Itoh, S, Kawasaki, N, Kita, NT, Kitajima, K, Kleine, T, Komatani, S, Krot, AN, Liu, MC, Masuda, Y, McKeegan, KD, 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 2022, 'The Solar System calcium isotopic composition inferred from Ryugu samples', Geochemical Perspectives Letters, vol. 24, pp. 1-6. https://doi.org/10.7185/geochemlet.2238

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title = "The Solar System calcium isotopic composition inferred from Ryugu samples",

abstract = "The Hayabusa2 spacecraft has returned samples from the Cb-type asteroid (162173) Ryugu to Earth. Previous petrological and chemical analyses support a close link between Ryugu and CI chondrites that are presumed to be chemically the most primitive meteorites with a solar-like composition. However, Ryugu samples are highly enriched in Ca compared to typical CI chondrites. To identify the cause of this discrepancy, here we report stable Ca isotopic data (expressed as δ44/40CaSRM915a) for returned Ryugu samples collected from two sites. We found that samples from both sites have similar δ44/40CaSRM915a (0.58 ± 0.03 % and 0.55 ± 0.08 %, 2 s.d.) that fall within the range defined by CIs. This isotopic similarity suggests that the Ca budget of CIs and Ryugu samples is dominated by carbonates, and the variably higher Ca contents in Ryugu samples are due to the abundant carbonates. Precipitation of carbonates on Ryugu likely coincided with a major episode of aqueous activity dated to have occurred ∼5 Myr after Solar System formation. Based on the pristine Ryugu samples, the average δ44/40CaSRM915a of the Solar System is defined to be 0.57 ± 0.04 % (2 s.d.).",

author = "F. Moynier and W. Dai and T. Yokoyama and Y. Hu and M. Paquet and Y. Abe and J. Al{\'e}on and Alexander, {C. M.O.D.} and S. Amari and Y. Amelin and Bajo, {K. I.} and M. Bizzarro and A. Bouvier and Carlson, {R. W.} and M. Chaussidon and Choi, {B. G.} and N. Dauphas and Davis, {A. M.} and {Di Rocco}, T. and W. Fujiya and R. Fukai and I. Gautam and Haba, {M. K.} and Y. Hibiya and H. Hidaka and H. Homma and P. Hoppe and Huss, {G. R.} and K. Ichida and T. Iizuka and Ireland, {T. R.} and A. Ishikawa and M. Ito and S. Itoh and N. Kawasaki and Kita, {N. T.} and K. Kitajima and T. Kleine and S. Komatani and Krot, {A. N.} and Liu, {M. C.} and Y. Masuda and McKeegan, {K. D.} and M. Morita and K. Motomura and I. Nakai and K. Nagashima and D. Nesvorn{\'y} and A. Nguyen and L. Nittler and M. Onose and A. Pack and C. Park and L. Piani and L. Qin and Russell, {S. S.} and N. Sakamoto and M. Sch{\"o}nb{\"a}chler and L. Tafla and H. Tang and K. Terada and Y. Terada and T. Usui and S. Wada and M. Wadhwa and Walker, {R. J.} and K. Yamashita and Yin, {Q. Z.} and S. Yoneda and Young, {E. D.} and H. Yui and Zhang, {A. C.} and T. Nakamura and H. Naraoka and T. Noguchi and R. Okazaki and K. Sakamoto and H. Yabuta and M. Abe and A. Miyazaki and A. Nakato and M. Nishimura and T. Okada and T. Yada and K. Yogata and S. Nakazawa and T. Saiki and S. Tanaka and F. Terui and Y. Tsuda and Watanabe, {S. I.} and M. Yoshikawa and S. Tachibana and H. Yurimoto",

note = "Publisher Copyright: {\textcopyright} 2022 The Authors.",

year = "2022",

doi = "10.7185/geochemlet.2238",

language = "English (US)",

volume = "24",

pages = "1--6",

journal = "Geochemical Perspectives Letters",

issn = "2410-339X",

publisher = "European Association of Geochemistry",

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TY - JOUR

T1 - The Solar System calcium isotopic composition inferred from Ryugu samples

AU - Moynier, F.

AU - Dai, W.

AU - Yokoyama, T.

AU - Hu, Y.

AU - Paquet, M.

AU - Abe, Y.

AU - Aléon, J.

AU - Alexander, C. M.O.D.

AU - Amari, S.

AU - Amelin, Y.

AU - Bajo, K. I.

AU - Bizzarro, M.

AU - Bouvier, A.

AU - Carlson, R. W.

AU - Chaussidon, M.

AU - Choi, B. G.

AU - Dauphas, N.

AU - Davis, A. M.

AU - Di Rocco, T.

AU - Fujiya, W.

AU - Fukai, R.

AU - Gautam, I.

AU - Haba, M. K.

AU - Hibiya, Y.

AU - Hidaka, H.

AU - Homma, H.

AU - Hoppe, P.

AU - Huss, G. R.

AU - Ichida, K.

AU - Iizuka, T.

AU - Ireland, T. R.

AU - Ishikawa, A.

AU - Ito, M.

AU - Itoh, S.

AU - Kawasaki, N.

AU - Kita, N. T.

AU - Kitajima, K.

AU - Kleine, T.

AU - Komatani, S.

AU - Krot, A. N.

AU - Liu, M. C.

AU - Masuda, Y.

AU - McKeegan, K. D.

AU - Morita, M.

AU - Motomura, K.

AU - Nakai, I.

AU - Nagashima, K.

AU - Nesvorný, D.

AU - Nguyen, A.

AU - Nittler, L.

AU - Onose, M.

AU - Pack, A.

AU - Park, C.

AU - Piani, L.

AU - Qin, L.

AU - Russell, S. S.

AU - Sakamoto, N.

AU - Schönbächler, M.

AU - Tafla, L.

AU - Tang, H.

AU - Terada, K.

AU - Terada, Y.

AU - Usui, T.

AU - Wada, S.

AU - Wadhwa, M.

AU - Walker, R. J.

AU - Yamashita, K.

AU - Yin, Q. Z.

AU - Yoneda, S.

AU - Young, E. D.

AU - Yui, H.

AU - Zhang, A. C.

AU - Nakamura, T.

AU - Naraoka, H.

AU - Noguchi, T.

AU - Okazaki, R.

AU - Sakamoto, K.

AU - Yabuta, H.

AU - Abe, M.

AU - Miyazaki, A.

AU - Nakato, A.

AU - Nishimura, M.

AU - Okada, T.

AU - Yada, T.

AU - Yogata, K.

AU - Nakazawa, S.

AU - Saiki, T.

AU - Tanaka, S.

AU - Terui, F.

AU - Tsuda, Y.

AU - Watanabe, S. I.

AU - Yoshikawa, M.

AU - Tachibana, S.

AU - Yurimoto, H.

PY - 2022

Y1 - 2022

N2 - The Hayabusa2 spacecraft has returned samples from the Cb-type asteroid (162173) Ryugu to Earth. Previous petrological and chemical analyses support a close link between Ryugu and CI chondrites that are presumed to be chemically the most primitive meteorites with a solar-like composition. However, Ryugu samples are highly enriched in Ca compared to typical CI chondrites. To identify the cause of this discrepancy, here we report stable Ca isotopic data (expressed as δ44/40CaSRM915a) for returned Ryugu samples collected from two sites. We found that samples from both sites have similar δ44/40CaSRM915a (0.58 ± 0.03 % and 0.55 ± 0.08 %, 2 s.d.) that fall within the range defined by CIs. This isotopic similarity suggests that the Ca budget of CIs and Ryugu samples is dominated by carbonates, and the variably higher Ca contents in Ryugu samples are due to the abundant carbonates. Precipitation of carbonates on Ryugu likely coincided with a major episode of aqueous activity dated to have occurred ∼5 Myr after Solar System formation. Based on the pristine Ryugu samples, the average δ44/40CaSRM915a of the Solar System is defined to be 0.57 ± 0.04 % (2 s.d.).

AB - The Hayabusa2 spacecraft has returned samples from the Cb-type asteroid (162173) Ryugu to Earth. Previous petrological and chemical analyses support a close link between Ryugu and CI chondrites that are presumed to be chemically the most primitive meteorites with a solar-like composition. However, Ryugu samples are highly enriched in Ca compared to typical CI chondrites. To identify the cause of this discrepancy, here we report stable Ca isotopic data (expressed as δ44/40CaSRM915a) for returned Ryugu samples collected from two sites. We found that samples from both sites have similar δ44/40CaSRM915a (0.58 ± 0.03 % and 0.55 ± 0.08 %, 2 s.d.) that fall within the range defined by CIs. This isotopic similarity suggests that the Ca budget of CIs and Ryugu samples is dominated by carbonates, and the variably higher Ca contents in Ryugu samples are due to the abundant carbonates. Precipitation of carbonates on Ryugu likely coincided with a major episode of aqueous activity dated to have occurred ∼5 Myr after Solar System formation. Based on the pristine Ryugu samples, the average δ44/40CaSRM915a of the Solar System is defined to be 0.57 ± 0.04 % (2 s.d.).

UR - http://www.scopus.com/inward/record.url?scp=85144756800&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85144756800&partnerID=8YFLogxK

U2 - 10.7185/geochemlet.2238

DO - 10.7185/geochemlet.2238

M3 - Article

AN - SCOPUS:85144756800

SN - 2410-339X

VL - 24

SP - 1

EP - 6

JO - Geochemical Perspectives Letters

JF - Geochemical Perspectives Letters

ER -

The Solar System calcium isotopic composition inferred from Ryugu samples

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