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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; O'D Alexander, Conel M; 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.
Afiliação
  • Spitzer F; Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, 37077 Göttingen, Germany.
  • Kleine T; Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, 37077 Göttingen, Germany.
  • Burkhardt C; Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, 37077 Göttingen, Germany.
  • Hopp T; Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, 37077 Göttingen, Germany.
  • Yokoyama T; Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
  • Abe Y; Graduate School of Engineering Materials Science and Engineering, Tokyo Denki University, Tokyo 120-8551, Japan.
  • Aléon J; Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, Sorbonne Université, Museum National d'Histoire Naturelle, CNRS UMR 7590, IRD, 75005 Paris, France.
  • O'D Alexander CM; Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA.
  • Amari S; McDonnell Center for the Space Sciences and Physics Department, Washington University, 35 St. Louis, MO 63130, USA.
  • Amelin Y; Geochemical Research Center, The University of Tokyo, Tokyo 113-0033, Japan.
  • Bajo KI; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, GD 510640, China.
  • Bizzarro M; Department of Natural History Sciences, Hokkaido University, Sapporo 001-0021, Japan.
  • Bouvier A; Centre for Star and Planet Formation, Globe Institute, University of Copenhagen, Copenhagen K 1350, Denmark.
  • Carlson RW; Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth 95447, Germany.
  • Chaussidon M; Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA.
  • Choi BG; Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, 75005 Paris, France.
  • Dauphas N; Department of Earth Science Education, Seoul National University, Seoul 08826, Republic of Korea.
  • Davis AM; Department of the Geophysical Sciences and Enrico Fermi Institute, The University of Chicago, 5734 South Ellis Avenue, Chicago, IL 60637, USA.
  • Di Rocco T; Department of the Geophysical Sciences and Enrico Fermi Institute, The University of Chicago, 5734 South Ellis Avenue, Chicago, IL 60637, USA.
  • Fujiya W; Faculty of Geosciences and Geography, University of Göttingen, Göttingen D-37077, Germany.
  • Fukai R; Faculty of Science, Ibaraki University, Mito 310-8512, Japan.
  • Gautam I; ISAS/JSEC, JAXA, Sagamihara 252-5210, Japan.
  • Haba MK; Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
  • Hibiya Y; Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
  • Hidaka H; Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan.
  • Homma H; Research Institute for Marine Resources Utilization, Japan Agency for Marine-Earth Science and Technology, Kanagawa 237-0061, Japan.
  • Hoppe P; Department of Earth and Planetary Sciences, Nagoya University, Nagoya 464-8601, Japan.
  • Huss GR; Osaka Application Laboratory, SBUWDX, Rigaku Corporation, Osaka 569-1146, Japan.
  • Ichida K; Max Planck Institute for Chemistry, Mainz 55128, Germany.
  • Iizuka T; Hawai'i Institute of Geophysics and Planetology, University of Hawai'i at Manoa, Honolulu, HI 96822, USA.
  • Ireland TR; Analytical Technology, Horiba Techno Service Co. Ltd., Kyoto 601-8125, Japan.
  • Ishikawa A; Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.
  • Itoh S; School of Earth and Environmental Sciences, The University of Queensland, St Lucia, QLD 4072, Australia.
  • Kawasaki N; Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
  • Kita NT; Department of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan.
  • Kitajima K; Department of Natural History Sciences, Hokkaido University, Sapporo 001-0021, Japan.
  • Komatani S; Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706, USA.
  • Krot AN; Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706, USA.
  • Liu MC; Analytical Technology, Horiba Techno Service Co. Ltd., Kyoto 601-8125, Japan.
  • Masuda Y; Hawai'i Institute of Geophysics and Planetology, University of Hawai'i at Manoa, Honolulu, HI 96822, USA.
  • Morita M; Department of Earth, Planetary, and Space Sciences, UCLA, Los Angeles, CA 90095, USA.
  • Moynier F; Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
  • Motomura K; Analytical Technology, Horiba Techno Service Co. Ltd., Kyoto 601-8125, Japan.
  • Nakai I; Department of Earth Science Education, Seoul National University, Seoul 08826, Republic of Korea.
  • Nagashima K; Thermal Analysis, Rigaku Corporation, Tokyo 196-8666, Japan.
  • Nguyen A; Department of Applied Chemistry, Tokyo University of Science, Tokyo 162-8601, Japan.
  • Nittler L; Hawai'i Institute of Geophysics and Planetology, University of Hawai'i at Manoa, Honolulu, HI 96822, USA.
  • Onose M; Astromaterials Research and Exploration Science, NASA Johnson Space Center, Houston, TX 77058, USA.
  • Pack A; School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85281, USA.
  • Park C; Analytical Technology, Horiba Techno Service Co. Ltd., Kyoto 601-8125, Japan.
Sci Adv ; 10(39): eadp2426, 2024 Sep 27.
Article em En | MEDLINE | ID: mdl-39331721
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.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article