Electron microscopy observations of the diversity of Ryugu organic matter and its relationship to minerals at the micro‐ to nano‐scale

Author:

Stroud Rhonda M.12ORCID,Barosch Jens3ORCID,Bonal Lydie4,Burgess Katherine2ORCID,Cody George D.3ORCID,De Gregorio Bradley T.2ORCID,Daly Luke567ORCID,Dartois Emmanuel8ORCID,Dobrică Elena9ORCID,Duprat Jean10ORCID,Engrand Cecile11ORCID,Harries Dennis12ORCID,Hashiguchi Minako13ORCID,Ishii Hope9ORCID,Kebukawa Yoko14ORCID,Kilcoyne A. David,Langenhorst Falko15ORCID,Lee Martin R.5ORCID,Nittler Larry R.13ORCID,Quirico Eric4ORCID,Okumura Taiga16ORCID,Remusat Laurent10ORCID,Sandford Scott17ORCID,Yabuta Hikaru18ORCID,Abe Masanao1920,Abreu Neyda M.21ORCID,Bagot Paul A. J.7ORCID,Beck Pierre4ORCID,Bejach Laure11ORCID,Bland Phil A.22ORCID,Bridges John C.23ORCID,Cymes Brittany A.2ORCID,Dazzi Alexandre24ORCID,de la Peña Francisco25ORCID,Deniset‐Besseau Ariane24ORCID,Enju Satomi26ORCID,Enokido Yuma27ORCID,Frank David R.9ORCID,Gray Jennifer28ORCID,Haruta Mitsutaka29ORCID,Hata Satoshi3031ORCID,Hicks Leon32ORCID,Igami Yohei33ORCID,Jacob Damien25ORCID,Kamide Kanami18,Komatsu Mutsumi34ORCID,Laforet Sylvain25ORCID,Leroux Hugues25ORCID,Le Guillou Corentin25ORCID,Martins Zita35ORCID,Marinova Maya25,Martinez James36,Mathurin Jérémie24ORCID,Matsumoto Megumi27ORCID,Matsumoto Toru3337ORCID,Matsuno Junya38ORCID,McFadzean Samuel39,Michikami Tatsuhiro40ORCID,Mitsukawa Itaru31ORCID,Miyake Akira33,Miyahara Masaaki18ORCID,Miyazaki Akiko41ORCID,Montagnac Gilles42ORCID,Mostefaoui Smail10ORCID,Nakamura Tomoki27,Nakato Aiko19ORCID,Naraoka Hiroshi43ORCID,Nakauchi Yusuke19ORCID,Nakazawa Satoru19ORCID,Nishimura Masahiro19ORCID,Noguchi Takaaki34ORCID,Ohtaki Kenta9ORCID,Ohigashi Takuji44,Okada Tatsuaki1920ORCID,Okumura Shota33ORCID,Okazaki Ryuji45ORCID,Phan Thi H. V.4ORCID,Rebois Rolando4ORCID,Sakamoto Kanako19ORCID,Saiki Takanao19ORCID,Saito Hikaru3031,Seto Yusuke18,Shigenaka Miho18,Smith William39,Suga Hiroki46ORCID,Sun Mingqi46ORCID,Tachibana Shogo1619ORCID,Takahashi Yoshio16,Takeichi Yasuo47ORCID,Takeuchi Akihisa46ORCID,Takigawa Aki16ORCID,Tamenori Yusuke46ORCID,Tanaka Satoshi19ORCID,Terui Fuyuto48ORCID,Thompson Michelle S.49,Tomioka Naotaka50ORCID,Tsuchiyama Akira51ORCID,Tsuda Yuichi19,Uesugi Kentaro46ORCID,Uesugi Masayuki46ORCID,Usui Tomohiro19ORCID,Verdier‐Paoletti Maximilien10ORCID,Wakabayashi Daisuke47ORCID,Watanabe Sei‐ichiro52ORCID,Yada Toru19ORCID,Yamashita Shohei47ORCID,Yasutake Masahiro46ORCID,Yogata Kasumi19ORCID,Yoshikawa Makoto19,Yurimoto Hisayoshi53ORCID,Zanetta Pierre‐M.54ORCID,Zega Thomas54ORCID,Zolensky Michael E.55ORCID

Affiliation:

1. School of Earth and Space Exploration Arizona State University Tempe Arizona USA

2. Materials Science and Technology Division US Naval Research Laboratory Washington DC USA

3. Earth and Planets Laboratory Carnegie Institution for Science Washington DC USA

4. Institut de Planétologie et d'Astrophysique, Université Grenoble Alpes Grenoble France

5. School of Geographical and Earth Sciences University of Glasgow Glasgow UK

6. Australian Centre for Microscopy and Microanalysis University of Sydney Sydney New South Wales Australia

7. Department of Materials University of Oxford Oxford UK

8. Institut des Sciences Moléculaires d'Orsay Université Paris‐Saclay, Centre National de la Recherche Scientifique Orsay France

9. Hawai‘i Institute of Geophysics and Planetology, the University of Hawai‘i at Mānoa Honolulu Hawaii USA

10. Institut de Mineralogie, Physique des Materiaux et Cosmochimie, Museum National d'Histoire Naturelle, Centre National de la Recherche Scientifique UMR 7590 Sorbonne Université Paris France

11. Laboratoire de Physique des 2 Infinis Irène Joliot‐Curie Centre National de la Recherche Scientifique, Université Paris‐Saclay Orsay France

12. Luxembourg Institute of Science and Technology European Space Resources Innovation Centre Belvaux Luxembourg

13. Graduate School of Environmental Studies Nagoya University Nagoya Japan

14. Department of Chemistry and Life Science Yokohama National University Yokohama Japan

15. Institute of Geoscience Friedrich Schiller University Jena Jena Germany

16. Department of Earth and Planetary Science The University of Tokyo Tokyo Japan

17. NASA Ames Research Center Moffett Field California USA

18. Department of Earth and Planetary Systems Science Hiroshima University Hiroshima Japan

19. Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Kanagawa Japan

20. The Graduate University for Advanced Studies, SOKENDAI Hayama Japan

21. Langley Research Center, NASA Hampton Virginia USA

22. School of Earth and Planetary Sciences Curtin University Perth Western Australia Australia

23. School of Physics and Astronomy University of Leicester Leicester UK

24. Institut Chimie Physique Centre National de la Recherche Scientifique, Université Paris‐Saclay Orsay France

25. Université de Lille, CNRS, INRAE, Centrale Lille, Université Artois, FR 2638‐IMEC‐Institut Michel‐Eugène Chevreul Lille France

26. Department of Mathematics, Physics, and Earth Science Ehime University Matsuyama Ehime Japan

27. Department of Earth Science Tohoku University Sendai Japan

28. Materials Characterization Lab The Pennsylvania State University University Park Pennsylvania USA

29. Institute for Chemical Research Kyoto University Kyoto Japan

30. Department of Advanced Materials Science Kyushu University Fukuoka Japan

31. The Ultramicroscopy Research Center Kyushu University Fukuoka Japan

32. School of Geology, Geography and the Environment University of Leicester Leicester UK

33. Division of Earth and Planetary Sciences Kyoto University Kyoto Japan

34. Center for University‐Wide Education, Saitama Prefectural University Saitama Japan

35. Centro de Química Estrutural Institute of Molecular Sciences and Department of Chemical Engineering, Instituto Superior Técnico, Universidade de Lisboa Lisbon Portugal

36. Jacobs Engineering Dallas Texas USA

37. The Hakubi Center for Advanced Research Kyoto University Kyoto Japan

38. CAS Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials Guangzhou Institute of Geochemistry, Chinese Academy of Sciences Guangzhou China

39. School of Physics and Astronomy University of Glasgow Glasgow UK

40. Faculty of Engineering Kindai University Higashi‐Hiroshima Japan

41. Marine Works Japan Ltd. Yokosuka Japan

42. École normale supérieure de Lyon University Lyon 1 Lyon France

43. UTokyo Organization for Planetary and Space Science University of Tokyo Tokyo Japan

44. Institute for Molecular Science, UVSOR Synchrotron Facility Okazaki Japan

45. Department of Earth and Planetary Sciences Kyushu University Fukuoka Japan

46. Japan Synchrotron Radiation Research Institute Hyogo Japan

47. Institute of Materials Structure Science, High Energy Accelerator Research Organization Tsukuba Japan

48. Department of Mechanical Engineering Kanagawa Institute of Technology Atsugi Japan

49. Department of Earth, Atmospheric and Planetary Sciences Purdue University West Lafayette Indiana USA

50. Kochi Institute for Core Sample Research, X‐Star, JAMSTEC Nankoku Kochi Japan

51. Research Organization of Science and Technology Ritsumeikan University Kusatsu Shiga Japan

52. Department of Earth and Environmental Sciences Nagoya University Nagoya Japan

53. Department of Earth and Planetary Sciences Hokkaido University Sapporo Japan

54. Lunar and Planetary Laboratory, Department of Planetary Sciences University of Arizona Tucson Arizona USA

55. ARES, NASA, Johnson Space Center Houston Texas USA

Abstract

AbstractTransmission electron microscopy analyses of Hayabusa2 samples show that Ryugu organic matter exhibits a range of morphologies, elemental compositions, and carbon functional chemistries consistent with those of carbonaceous chondrites that have experienced low‐temperature aqueous alteration. Both nanoglobules and diffuse organic matter are abundant. Non‐globular organic particles are also present, and including some that contain nanodiamond clusters. Diffuse organic matter is finely distributed in and around phyllosilicates, forms coatings on other minerals, and is also preserved in vesicles in secondary minerals such as carbonate and pyrrhotite. The average elemental compositions determined by energy‐dispersive spectroscopy of extracted, demineralized insoluble organic matter samples A0107 and C0106 are C100N3O9S1 and C100N3O7S1, respectively, with the difference in O/C slightly outside the difference in the standard error of the mean. The functional chemistry of the nanoglobules varies from mostly aromatic C=C to mixtures of aromatic C=C, ketone C=O, aliphatic (CHn), and carboxyl (COOH) groups. Diffuse organic matter associated with phyllosilicates has variable aromatic C, ketone and carboxyl groups, and some localized aliphatics, but is dominated by molecular carbonate (CO3) absorption, comparable to prior observations of clay‐bound organic matter in CI meteorites.

Funder

National Aeronautics and Space Administration

Publisher

Wiley

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