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Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2.
Kawasaki, Noriyuki; Nagashima, Kazuhide; Sakamoto, Naoya; Matsumoto, Toru; Bajo, Ken-Ichi; Wada, Sohei; Igami, Yohei; Miyake, Akira; Noguchi, Takaaki; Yamamoto, Daiki; Russell, Sara S; Abe, Yoshinari; Aléon, Jérôme; Alexander, Conel M O'D; Amari, Sachiko; Amelin, Yuri; 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; Ito, Motoo; Itoh, Shoichi; Kita, Noriko T; Kitajima, Kouki; Kleine, Thorsten; Komatani, Shintaro; Krot, Alexander N; Liu, Ming-Chang; Masuda, Yuki; McKeegan, Kevin D; Morita, Mayu; Motomura, Kazuko; Moynier, Frédéric.
Afiliação
  • Kawasaki N; Department of Natural History Sciences, Hokkaido University Sapporo 060-0810, Japan.
  • Nagashima K; Hawai'i Institute of Geophysics and Planetology, University of Hawai'i at Manoa, Honolulu, HI 96822, USA.
  • Sakamoto N; Isotope Imaging Laboratory, Creative Research Institution, Hokkaido University, Sapporo 001-0021, Japan.
  • Matsumoto T; The Hakubi Center for Advanced Research, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.
  • Bajo KI; Division of Earth and Planetary Sciences, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.
  • Wada S; Department of Natural History Sciences, Hokkaido University Sapporo 060-0810, Japan.
  • Igami Y; Department of Natural History Sciences, Hokkaido University Sapporo 060-0810, Japan.
  • Miyake A; Division of Earth and Planetary Sciences, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.
  • Noguchi T; Division of Earth and Planetary Sciences, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.
  • Yamamoto D; Division of Earth and Planetary Sciences, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.
  • Russell SS; Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
  • Abe Y; Department of Earth Sciences, Natural History Museum, London, SW7 5BD, UK.
  • Aléon J; Graduate School of Engineering Materials Science and Engineering, Tokyo Denki University, Tokyo 120-8551, Japan.
  • Alexander CMO; Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, Sorbonne Université, Museum National d'Histoire Naturelle, Centre National de la Recherche Scientifique Unité Mixte de Recherche 7590, IRD, Paris 75005, France.
  • Amari S; Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA.
  • Amelin Y; McDonnell Center for the Space Sciences and Physics Department, Washington University, St. Louis, MO 63130, USA.
  • Bizzarro M; Geochemical Research Center, The University of Tokyo, Tokyo 113-0033, Japan.
  • Bouvier A; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, GD 510640, China.
  • Carlson RW; Centre for Star and Planet Formation, Globe Institute, University of Copenhagen, Copenhagen K 1350, Denmark.
  • Chaussidon M; Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth 95447, Germany.
  • Choi BG; Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA.
  • Dauphas N; Université de Paris, Institut de physique du globe de Paris, Centre National de la Recherche Scientifique, Paris 75005, France.
  • Davis AM; Department of Earth Science Education, Seoul National University, Seoul 08826, Republic of Korea.
  • Di Rocco T; Department of the Geophysical Sciences and Enrico Fermi Institute, The University of Chicago, Chicago, IL 60637, USA.
  • Fujiya W; Department of the Geophysical Sciences and Enrico Fermi Institute, The University of Chicago, Chicago, IL 60637, USA.
  • Fukai R; Faculty of Geosciences and Geography, University of Göttingen, Göttingen D-37077, Germany.
  • Gautam I; Faculty of Science, Ibaraki University, Mito 310-8512, Japan.
  • Haba MK; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Hibiya Y; Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
  • Hidaka H; Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
  • Homma H; Department of General Systems Studies, The University of Tokyo, Tokyo 153-0041, Japan.
  • Hoppe P; Department of Earth and Planetary Sciences, Nagoya University, Nagoya 464-8601, Japan.
  • Huss GR; Osaka Application Laboratory, 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.
  • Ito M; School of Earth and Environmental Sciences, The University of Queensland, St. Lucia QLD 4072, Australia.
  • Itoh S; Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
  • Kita NT; Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, Kochi 783-8502, Japan.
  • Kitajima K; Division of Earth and Planetary Sciences, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.
  • Kleine T; Department of Geoscience, University of Wisconsin- Madison, Madison, WI 53706, USA.
  • Komatani S; Department of Geoscience, University of Wisconsin- Madison, Madison, WI 53706, USA.
  • Krot AN; Max Planck Institute for Solar System Research, Göttingen 37077, Germany.
  • 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.
  • McKeegan KD; Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA.
  • Morita M; Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
  • Motomura K; Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
  • Moynier F; Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA.
Sci Adv ; 8(50): eade2067, 2022 Dec 16.
Article em En | MEDLINE | ID: mdl-36525483
ABSTRACT
The extraterrestrial materials returned from asteroid (162173) Ryugu consist predominantly of low-temperature aqueously formed secondary minerals and are chemically and mineralogically similar to CI (Ivuna-type) carbonaceous chondrites. Here, we show that high-temperature anhydrous primary minerals in Ryugu and CI chondrites exhibit a bimodal distribution of oxygen isotopic compositions 16O-rich (associated with refractory inclusions) and 16O-poor (associated with chondrules). Both the 16O-rich and 16O-poor minerals probably formed in the inner solar protoplanetary disk and were subsequently transported outward. The abundance ratios of the 16O-rich to 16O-poor minerals in Ryugu and CI chondrites are higher than in other carbonaceous chondrite groups but are similar to that of comet 81P/Wild2, suggesting that Ryugu and CI chondrites accreted in the outer Solar System closer to the accretion region of comets.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Adv Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Japão

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Adv Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Japão