Late fluid flow in a primitive asteroid revealed by Lu–Hf isotopes in Ryugu

Iizuka, Tsuyoshi; Shibuya, Takazo; Hayakawa, Takehito; Yokoyama, Tetsuya; Gautam, Ikshu; Haba, Makiko K.; Ito, Kengo T. M.; Hibiya, Yuki; Yamaguchi, Akira; 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.; Rocco, Tommaso Di; Fujiya, Wataru; Fukai, Ryota; Hidaka, Hiroshi; Homma, Hisashi; Huss, Gary R.; Ireland, Trevor R.; Ishikawa, Akira; Itoh, Shoichi; Kawasaki, Noriyuki; Kita, Noriko T.; Kitajima, Koki; Kleine, Thorsten; Komatani, Shintaro; Krot, Alexander N.; Liu, Ming-Chang; Masuda, Yuki; Motomura, Kazuko; Moynier, Frédéric; Nagashima, Kazuhide; Nakai, Izumi; Nguyen, Ann; Nittler, Larry; Pack, Andreas; Park, Changkun; Piani, Laurette; Qin, Liping; Russell, Sara; 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; 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

doi:https://doi.org/10.1038/s41586-025-09483-0

アイテムタイプ

itemtype_ver1(1)

公開日

2025-12-19

タイトル

Late fluid flow in a primitive asteroid revealed by Lu–Hf isotopes in Ryugu

言語

en

著者

Iizuka, Tsuyoshi
Shibuya, Takazo
Hayakawa, Takehito
Yokoyama, Tetsuya
Gautam, Ikshu
Haba, Makiko K.
Ito, Kengo T. M.
Hibiya, Yuki
Yamaguchi, Akira
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.
Rocco, Tommaso Di
Fujiya, Wataru
Fukai, Ryota
Hidaka, Hiroshi
Homma, Hisashi
Huss, Gary R.
Ireland, Trevor R.
Ishikawa, Akira
Itoh, Shoichi
Kawasaki, Noriyuki
Kita, Noriko T.
Kitajima, Koki
Kleine, Thorsten
Komatani, Shintaro
Krot, Alexander N.
Liu, Ming-Chang
Masuda, Yuki
Motomura, Kazuko
Moynier, Frédéric
Nagashima, Kazuhide
Nakai, Izumi
Nguyen, Ann
Nittler, Larry
Pack, Andreas
Park, Changkun
Piani, Laurette
Qin, Liping
Russell, Sara
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
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

アクセス権

open access

アクセス権URI

http://purl.org/coar/access_right/c_abf2

権利

権利情報

This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1038/s41586-025-09483-0

言語

en

内容記述

内容記述タイプ

Abstract

内容記述

Carbonaceous asteroids are the source of the most primitive meteorites and represent leftover planetesimals that formed from ice and dust in the outer Solar System and may have delivered volatiles to the terrestrial planets. Understanding the aqueous activity of asteroids is key to deciphering their thermal, chemical and orbital evolution, with implications for the origin of water on the terrestrial planets. Analyses of the objects, in particular pristine samples returned from asteroid Ryugu, have provided detailed information on fluid–rock interactions within a few million years after parent-body formation. However, the long-term fate of asteroidal water remains poorly understood. Here we present evidence for fluid flow in a carbonaceous asteroid more than 1 billion years after formation, based on the 176Lu^–176Hf decay systematics of Ryugu samples, which reflect late lutetium mobilization. Such late fluid flow was probably triggered by an impact that generated heat for ice melting and opened rock fractures for fluid migration. This contrasts the early aqueous activity powered by short-lived radioactive decay, with limited fluid flow and little elemental fractionation. Our results imply that carbonaceous planetesimals accreted by the terrestrial planets could have retained not only hydrous minerals but also aqueous water, leading to an upwards revision of the inventory of their water delivery by a factor of two to three.

言語

en

出版者

SpringerNature

言語

en

言語

eng

資源タイプ

資源タイプresource

http://purl.org/coar/resource_type/c_6501

タイプ

journal article

出版タイプ

AM

出版タイプResource

http://purl.org/coar/version/c_ab4af688f83e57aa

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インデックスツリー

アイテム

Late fluid flow in a primitive asteroid revealed by Lu–Hf isotopes in Ryugu

× Iizuka, Tsuyoshi

× Shibuya, Takazo

× Hayakawa, Takehito

× Yokoyama, Tetsuya

× Gautam, Ikshu

× Haba, Makiko K.

× Ito, Kengo T. M.

× Hibiya, Yuki

× Yamaguchi, Akira

× 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.

× Rocco, Tommaso Di

× Fujiya, Wataru

× Fukai, Ryota

× Hidaka, Hiroshi

× Homma, Hisashi

× Huss, Gary R.

× Ireland, Trevor R.

× Ishikawa, Akira

× Itoh, Shoichi

× Kawasaki, Noriyuki

× Kita, Noriko T.

× Kitajima, Koki

× Kleine, Thorsten

× Komatani, Shintaro

× Krot, Alexander N.

× Liu, Ming-Chang

× Masuda, Yuki

× Motomura, Kazuko

× Moynier, Frédéric

× Nagashima, Kazuhide

× Nakai, Izumi

× Nguyen, Ann

× Nittler, Larry

× Pack, Andreas

× Park, Changkun

× Piani, Laurette

× Qin, Liping

× Russell, Sara

× 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

× 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