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

Journal Articles Icarus Year : 2024

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

(1) , (1) , (1) , (1) , , , (2) , , , , , (1) , , , (1) , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

1
2

Yan Hu

Function : Author

Institut de Physique du Globe de Paris

Frédéric Moynier

Function : Author
PersonId : 760888
IdHAL : frederic-moynier
ORCID : 0000-0003-4321-5581

Institut de Physique du Globe de Paris

Wei Dai

Function : Author

Institut de Physique du Globe de Paris

Marine Paquet

Function : Author

Institut de Physique du Globe de Paris

Tetsuya Yokoyama

Function : Author

Yoshinari Abe

Function : Author

Jérôme Aléon

Function : Author
PersonId : 738449
IdHAL : jerome-aleon
ORCID : 0000-0001-5729-0166
IdRef : 16193109X

Institut de minéralogie, de physique des matériaux et de cosmochimie

Conel M. O'D. Alexander

Function : Author

Sachiko Amari

Function : Author

Yuri Amelin

Function : Author

Ken-Ichi Bajo

Function : Author

Martin Bizzarro

Function : Author

Institut de Physique du Globe de Paris

Audrey Bouvier

Function : Author

Richard W. Carlson

Function : Author

Marc Chaussidon

Function : Author

Institut de Physique du Globe de Paris

Byeon-Gak Choi

Function : Author

Nicolas Dauphas

Function : Author

Andrew M. Davis

Function : Author

Tommaso Di Rocco

Function : Author

Wataru Fujiya

Function : Author

Ryota Fukai

Function : Author

Ikshu Gautam

Function : Author

Makiko K. Haba

Function : Author

Yuki Hibiya

Function : Author

Hiroshi Hidaka

Function : Author

Hisashi Homma

Function : Author

Peter Hoppe

Function : Author

Gary R. Huss

Function : Author

Kiyohiro Ichida

Function : Author

Tsuyoshi Iizuka

Function : Author

Trevor R. Ireland

Function : Author

Akira Ishikawa

Function : Author

Shoichi Itoh

Function : Author

Noriyuki Kawasaki

Function : Author

Noriko T. Kita

Function : Author

Koki Kitajima

Function : Author

Thorsten Kleine

Function : Author

Shintaro Komatani

Function : Author

Alexander N. Krot

Function : Author

Ming-Chang Liu

Function : Author

Yuki Masuda

Function : Author

Mayu Morita

Function : Author

Kazuko Motomura

Function : Author

Izumi Nakai

Function : Author

Kazuhide Nagashima

Function : Author

David Nesvorný

Function : Author

Ann Nguyen

Function : Author

Larry Nittler

Function : Author

Morihiko Onose

Function : Author

Andreas Pack

Function : Author

Changkun Park

Function : Author

Laurette Piani

Function : Author

Liping Qin

Function : Author

Sara S. Russell

Function : Author

Naoya Sakamoto

Function : Author

Maria Schönbächler

Function : Author

Lauren Tafla

Function : Author

Haolan Tang

Function : Author

Kentaro Terada

Function : Author

Yasuko Terada

Function : Author

Tomohiro Usui

Function : Author

Sohei Wada

Function : Author

Meenakshi Wadhwa

Function : Author

Richard J. Walker

Function : Author

Katsuyuki Yamashita

Function : Author

Qing-Zhu Yin

Function : Author

Shigekazu Yoneda

Function : Author

Edward D. Young

Function : Author

Hiroharu Yui

Function : Author

Ai-Cheng Zhang

Function : Author

Tomoki Nakamura

Function : Author

Hiroshi Naraoka

Function : Author

Takaaki Noguchi

Function : Author

Ryuji Okazaki

Function : Author

Kanako Sakamoto

Function : Author

Hikaru Yabuta

Function : Author

Masanao Abe

Function : Author

Akiko Miyazaki

Function : Author

Aiko Nakato

Function : Author

Masahiro Nishimura

Function : Author

Tatsuaki Okada

Function : Author

Toru Yada

Function : Author

Kasumi Yogata

Function : Author

Satoru Nakazawa

Function : Author

Takanao Saiki

Function : Author

Satoshi Tanaka

Function : Author

Fuyuto Terui

Function : Author

Yuichi Tsuda

Function : Author

Sei-Ichiro Watanabe

Function : Author

Makoto Yoshikawa

Function : Author

Shogo Tachibana

Function : Author

Hisayoshi Yurimoto

Function : Author

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

Asteroid Ryugu Hayabusa2 mission Carbonaceous chondrites Stable potassium isotopes Aqueous alteration

Domains

Sciences of the Universe [physics]

Fichier principal

1-s2.0-S0019103523004633-am.pdf (650.03 Ko)

Origin	Files produced by the author(s)

Nathalie POTHIER : Connect in order to contact the contributor

https://insu.hal.science/insu-04462199

Submitted on : Friday, January 10, 2025-11:12:35 AM

Last modification on : Saturday, January 11, 2025-3:08:50 AM

Dates and versions

insu-04462199 , version 1 (10-01-2025)

Licence

Attribution

Identifiers

HAL Id : insu-04462199 , version 1
BIBCODE : 2024Icar..40915884H
DOI : 10.1016/j.icarus.2023.115884

Cite

Yan Hu, Frédéric Moynier, Wei Dai, Marine Paquet, Tetsuya Yokoyama, et al.. Pervasive aqueous alteration in the early Solar System revealed by potassium isotopic variations in Ryugu samples and carbonaceous chondrites. Icarus, 2024, 409, ⟨10.1016/j.icarus.2023.115884⟩. ⟨insu-04462199⟩

Export

BibTeX XML-TEI Dublin Core DC Terms EndNote DataCite

Collections

IRD INSU MNHN AFRIQ CNRS IPGP IMPMC ALLINSP SORBONNE-UNIVERSITE SU-SCIENCES

14 View

0 Download

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

Abstract

Keywords

Domains

Dates and versions

Licence

Identifiers

Cite

Export

Collections

Altmetric

Share