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Yoshimura, T.* ; Takano, Y.* ; Naraoka, H.* ; Koga, T.* ; Araoka, D.* ; Ogawa, N.O.* ; Schmitt-Kopplin, P. ; Hertkorn, N. ; Oba, Y.* ; Dworkin, J.P.* ; Aponte, J.C.* ; Yoshikawa, T.* ; Tanaka, S.* ; Ohkouchi, N.* ; Hashiguchi, M.* ; McLain, H.* ; Parker, E.T.* ; Sakai, S.* ; Yamaguchi, M.* ; Suzuki, T.* ; Yokoyama, T.* ; Yurimoto, H.* ; Nakamura, T.* ; Noguchi, T.* ; Okazaki, R.* ; Yabuta, H.* ; Sakamoto, K.* ; Yada, T.* ; Nishimura, M.* ; Nakato, A.* ; Miyazaki, A.* ; Yogata, K.* ; Abe, M.* ; Okada, T.* ; Usui, T.* ; Yoshikawa, M.* ; Saiki, T.* ; Terui, F.* ; Nakazawa, S.* ; Watanabe, S.i.* ; Tsuda, Y.* ; Tachibana, S.* ; Hamase, K.* ; Furusho, A.* ; Fukushima, K.* ; Aoki, D.* ; Glavin, D.P.* ; Mclain, H.L.* ; Elsila, J.E.* ; Graham, H.V.* ; Eiler, J.M.* ; Ruf, A.* ; Orthous-Daunay, F.R.* ; Wolters, C.* ; Isa, J.* ; Vuitton, V.* ; Thissen, R.* ; Sugahara, H.* ; Mita, H.* ; Furukawa, Y.* ; Chikaraishi, Y.* ; Morita, M.* ; Onose, M.* ; Kabashima, F.* ; Fujishima, K.* ; Sato, H.* ; Sasaki, K.* ; Kano, K.* ; Nomura, S.i.M.* ; Aoki, J.* ; Yamazaki, T.* ; Kimura, Y.*

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

Nat. Commun. 14:5284 (2023)
Publ. Version/Full Text DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
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 S n-polythionic acids (n < 6), C n-alkylsulfonates, alkylthiosulfonates, hydroxyalkylsulfonates, and hydroxyalkylthiosulfonates (n < 7). The sulfur-bearing soluble compounds may have driven the molecular evolution of prebiotic organic material transforming simple organic molecules into hydrophilic, amphiphilic, and refractory S allotropes.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Extraterrestrial Amino-acids; Meteorite; Orgueil; Sulfate; Origin; Matter
ISSN (print) / ISBN 2041-1723
e-ISSN 2041-1723
Journal Nature Communications
Quellenangaben Volume: 14, Issue: 1, Pages: , Article Number: 5284 Supplement: ,
Publisher Nature Publishing Group
Publishing Place London
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Research Unit BioGeoChemistry and Analytics (BGC)
Grants MEXT | Japan Society for the Promotion of Science (JSPS)