Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2

Author:

Kawasaki Noriyuki1ORCID,Nagashima Kazuhide2ORCID,Sakamoto Naoya3ORCID,Matsumoto Toru45ORCID,Bajo Ken-ichi1ORCID,Wada Sohei1ORCID,Igami Yohei5ORCID,Miyake Akira5ORCID,Noguchi Takaaki5ORCID,Yamamoto Daiki6,Russell Sara S.7ORCID,Abe Yoshinari8ORCID,Aléon Jérôme9ORCID,Alexander Conel M. O’D.10ORCID,Amari Sachiko1112ORCID,Amelin Yuri13ORCID,Bizzarro Martin14ORCID,Bouvier Audrey15ORCID,Carlson Richard W.10ORCID,Chaussidon Marc16ORCID,Choi Byeon-Gak17ORCID,Dauphas Nicolas18ORCID,Davis Andrew M.18ORCID,Di Rocco Tommaso19ORCID,Fujiya Wataru20ORCID,Fukai Ryota21ORCID,Gautam Ikshu6ORCID,Haba Makiko K.6ORCID,Hibiya Yuki22ORCID,Hidaka Hiroshi23ORCID,Homma Hisashi24ORCID,Hoppe Peter25ORCID,Huss Gary R.2ORCID,Ichida Kiyohiro26ORCID,Iizuka Tsuyoshi27ORCID,Ireland Trevor R.28ORCID,Ishikawa Akira6ORCID,Ito Motoo29ORCID,Itoh Shoichi5ORCID,Kita Noriko T.30ORCID,Kitajima Kouki30ORCID,Kleine Thorsten31ORCID,Komatani Shintaro26ORCID,Krot Alexander N.2ORCID,Liu Ming-Chang3233ORCID,Masuda Yuki6ORCID,McKeegan Kevin D.32ORCID,Morita Mayu26ORCID,Motomura Kazuko34ORCID,Moynier Frédéric16ORCID,Nakai Izumi35ORCID,Nguyen Ann36ORCID,Nittler Larry10ORCID,Onose Morihiko26ORCID,Pack Andreas19ORCID,Park Changkun37ORCID,Piani Laurette38ORCID,Qin Liping39,Schönbächler Maria40ORCID,Tafla Lauren32,Tang Haolan32,Terada Kentaro41ORCID,Terada Yasuko42ORCID,Usui Tomohiro20ORCID,Wadhwa Meenakshi43ORCID,Walker Richard J.44ORCID,Yamashita Katsuyuki45ORCID,Yin Qing-Zhu46ORCID,Yokoyama Tetsuya6ORCID,Yoneda Shigekazu47ORCID,Young Edward D.32ORCID,Yui Hiroharu48ORCID,Zhang Ai-Cheng49ORCID,Nakamura Tomoki50ORCID,Naraoka Hiroshi51ORCID,Okazaki Ryuji51ORCID,Sakamoto Kanako21ORCID,Yabuta Hikaru52ORCID,Abe Masanao21ORCID,Miyazaki Akiko21ORCID,Nakato Aiko21ORCID,Nishimura Masahiro21ORCID,Okada Tatsuaki21ORCID,Yada Toru21ORCID,Yogata Kasumi21ORCID,Nakazawa Satoru21ORCID,Saiki Takanao21ORCID,Tanaka Satoshi21ORCID,Terui Fuyuto53ORCID,Tsuda Yuichi21ORCID,Watanabe Sei-ichiro23ORCID,Yoshikawa Makoto21ORCID,Tachibana Shogo54ORCID,Yurimoto Hisayoshi13ORCID

Affiliation:

1. Department of Natural History Sciences, Hokkaido University Sapporo 060-0810, Japan.

2. Hawai‘i Institute of Geophysics and Planetology, University of Hawai‘i at Mānoa, Honolulu, HI 96822, USA.

3. Isotope Imaging Laboratory, Creative Research Institution, Hokkaido University, Sapporo 001-0021, Japan.

4. The Hakubi Center for Advanced Research, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.

5. Division of Earth and Planetary Sciences, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan.

6. Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo 152-8551, Japan.

7. Department of Earth Sciences, Natural History Museum, London, SW7 5BD, UK.

8. Graduate School of Engineering Materials Science and Engineering, Tokyo Denki University, Tokyo 120-8551, Japan.

9. 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.

10. Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA.

11. McDonnell Center for the Space Sciences and Physics Department, Washington University, St. Louis, MO 63130, USA.

12. Geochemical Research Center, The University of Tokyo, Tokyo 113-0033, Japan.

13. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, GD 510640, China.

14. Centre for Star and Planet Formation, Globe Institute, University of Copenhagen, Copenhagen K 1350, Denmark.

15. Bayerisches Geoinstitut, Universität Bayreuth, Bayreuth 95447, Germany.

16. Université de Paris, Institut de physique du globe de Paris, Centre National de la Recherche Scientifique, Paris 75005, France.

17. Department of Earth Science Education, Seoul National University, Seoul 08826, Republic of Korea.

18. Department of the Geophysical Sciences and Enrico Fermi Institute, The University of Chicago, Chicago, IL 60637, USA.

19. Faculty of Geosciences and Geography, University of Göttingen, Göttingen D-37077, Germany.

20. Faculty of Science, Ibaraki University, Mito 310-8512, Japan.

21. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.

22. Department of General Systems Studies, The University of Tokyo, Tokyo 153-0041, Japan.

23. Department of Earth and Planetary Sciences, Nagoya University, Nagoya 464-8601, Japan.

24. Osaka Application Laboratory, Rigaku Corporation, Osaka 569-1146, Japan.

25. Max Planck Institute for Chemistry, Mainz 55128, Germany.

26. Analytical Technology, Horiba Techno Service Co. Ltd., Kyoto 601-8125, Japan.

27. Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.

28. School of Earth and Environmental Sciences, The University of Queensland, St. Lucia QLD 4072, Australia.

29. Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, Kochi 783-8502, Japan.

30. Department of Geoscience, University of Wisconsin- Madison, Madison, WI 53706, USA.

31. Max Planck Institute for Solar System Research, Göttingen 37077, Germany.

32. Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA.

33. Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.

34. Thermal Analysis, Rigaku Corporation, Tokyo 196-8666, Japan.

35. Department of Applied Chemistry, Tokyo University of Science, Tokyo 162-8601, Japan.

36. Astromaterials Research and Exploration Science Division, National Aeronautics and Space Administration Johnson Space Center, Houston, TX 77058, USA.

37. Division of Earth-System Sciences, Korea Polar Research Institute, Incheon 21990, Republic of Korea.

38. Centre de Recherches Pétrographiques et Géochimiques, Centre National de la Recherche Scientifique–Université de Lorraine, Nancy 54500, France.

39. School of Earth and Space Sciences, University of Science and Technology of China,, Anhui 230026, China.

40. Institute for Geochemistry and Petrology, Department of Earth Sciences, Eidgenössische Technische Hochschule Zürich, Zürich, Switzerland.

41. Department of Earth and Space Science, Osaka University, Osaka 560-0043, Japan.

42. Spectroscopy and Imaging, Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan.

43. School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85281, USA.

44. Department of Geology, University of Maryland, College Park, MD 20742, USA.

45. Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.

46. Department of Earth and Planetary Sciences, University of California, Davis CA 95616, USA.

47. Department of Science and Engineering, National Museum of Nature and Science, Tsukuba 305-0005, Japan.

48. Department of Chemistry, Tokyo University of Science, Tokyo 162-8601, Japan.

49. School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China.

50. Department of Earth Science, Tohoku University, Sendai 980-8578, Japan.

51. Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan.

52. Earth and Planetary Systems Science Program, Hiroshima University, Higashi-Hiroshima 739-8526, Japan.

53. Kanagawa Institute of Technology, Atsugi 243-0292, Japan.

54. Tokyo Organization for Planetary and Space Science, University of Tokyo, Tokyo 113-0033, Japan.

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: 16 O-rich (associated with refractory inclusions) and 16 O-poor (associated with chondrules). Both the 16 O-rich and 16 O-poor minerals probably formed in the inner solar protoplanetary disk and were subsequently transported outward. The abundance ratios of the 16 O-rich to 16 O-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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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