Chemical evolution of primordial salts and organic sulfur molecules in the asteroid 162173 Ryugu

Toshihiro Yoshimura (), Yoshinori Takano, Hiroshi Naraoka, Toshiki Koga, Daisuke Araoka, Nanako O. Ogawa, Philippe Schmitt-Kopplin, Norbert Hertkorn, Yasuhiro Oba, Jason P. Dworkin, José C. Aponte, Takaaki Yoshikawa, Satoru Tanaka, Naohiko Ohkouchi, Minako Hashiguchi, Hannah McLain, Eric T. Parker, Saburo Sakai, Mihoko Yamaguchi, Takahiro Suzuki, Tetsuya Yokoyama, Hisayoshi Yurimoto, Tomoki Nakamura, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Kanako Sakamoto, Toru Yada, Masahiro Nishimura, Aiko Nakato, Akiko Miyazaki, Kasumi Yogata, Masanao Abe, Tatsuaki Okada, Tomohiro Usui, Makoto Yoshikawa, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Satoru Nakazawa, Sei-ichiro Watanabe, Yuichi Tsuda and Shogo Tachibana
Additional contact information
Toshihiro Yoshimura: Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Yoshinori Takano: Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Hiroshi Naraoka: Kyushu University
Toshiki Koga: Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Daisuke Araoka: Geological Survey of Japan (GSJ), National Institute of Advanced Industrial Science and Technology (AIST)
Nanako O. Ogawa: Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Philippe Schmitt-Kopplin: Helmholtz Zentrum München, Analytical BioGeoChemistry, Ingolstaedter Landstrasse 1
Norbert Hertkorn: Helmholtz Zentrum München, Analytical BioGeoChemistry, Ingolstaedter Landstrasse 1
Yasuhiro Oba: Hokkaido University
Jason P. Dworkin: Solar System Exploration Division, NASA Goddard Space Flight Center
José C. Aponte: Solar System Exploration Division, NASA Goddard Space Flight Center
Takaaki Yoshikawa: HORIBA Advanced Techno, Co., Ltd., Kisshoin, Minami-ku
Satoru Tanaka: HORIBA Techno Service Co., Ltd. Kisshoin
Naohiko Ohkouchi: Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Minako Hashiguchi: Nagoya University
Hannah McLain: Solar System Exploration Division, NASA Goddard Space Flight Center
Eric T. Parker: Solar System Exploration Division, NASA Goddard Space Flight Center
Saburo Sakai: Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Mihoko Yamaguchi: Thermo Fisher Scientific Inc., 3-9 Moriyacho, Kanagawa-ku
Takahiro Suzuki: Thermo Fisher Scientific Inc., 3-9 Moriyacho, Kanagawa-ku
Tetsuya Yokoyama: Tokyo Institute of Technology, Ookayama
Hisayoshi Yurimoto: Creative Research Institution (CRIS), Hokkaido University
Tomoki Nakamura: Tohoku University
Takaaki Noguchi: Kyoto University
Ryuji Okazaki: Kyushu University
Hikaru Yabuta: Earth and Planetary Systems Science Program, Hiroshima University
Kanako Sakamoto: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Toru Yada: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Masahiro Nishimura: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Aiko Nakato: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Akiko Miyazaki: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Kasumi Yogata: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Masanao Abe: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Tatsuaki Okada: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Tomohiro Usui: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Makoto Yoshikawa: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Takanao Saiki: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Satoshi Tanaka: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Fuyuto Terui: Kanagawa Institute of Technology
Satoru Nakazawa: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Sei-ichiro Watanabe: Nagoya University
Yuichi Tsuda: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
Shogo Tachibana: Institute of Space and Astro-nautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)

Nature Communications, 2023, vol. 14, issue 1, 1-11

Abstract: Abstract Samples from the carbonaceous asteroid (162173) Ryugu provide information on the chemical evolution of organic molecules in the early solar system. Here we show the element partitioning of the major component ions by sequential extractions of salts, carbonates, and phyllosilicate-bearing fractions to reveal primordial brine composition of the primitive asteroid. Sodium is the dominant electrolyte of the salt fraction extract. Anions and NH4+ are more abundant in the salt fraction than in the carbonate and phyllosilicate fractions, with molar concentrations in the order SO42− > Cl− > S2O32− > NO3− > NH4+. The salt fraction extracts contain anionic soluble sulfur-bearing species such as Sn-polythionic acids (n

Date: 2023
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DOI: 10.1038/s41467-023-40871-0

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