| Title: | Distributions of CHN compounds in meteorites record organic syntheses in the early solar system |
| Author(s): | Furukawa Y; Saigusa D; Kano K; Uruno A; Saito R; Ito M; Matsumoto M; Aoki J; Yamamoto M; Nakamura T; |
| Address: | "Department of Earth Science, Tohoku University, Sendai, Japan. furukawa@tohoku.ac.jp. Laboratory of Biomedical and Analytical Sciences, Faculty of Pharma-Science, Teikyo University, Tokyo, Japan. Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan. Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan. Department of Medical Biochemistry, Graduate School of Medicine, Tohoku University, Sendai, Japan. Kochi Institute for Core Sample Research, X-star, Japan Agency for Marine-Earth Science and Technology, Nankoku, Japan. Department of Earth Science, Tohoku University, Sendai, Japan" |
| DOI: | 10.1038/s41598-023-33595-0 |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "Carbonaceous meteorites contain diverse soluble organic compounds. These compounds formed in the early solar system from volatiles accreted on tiny dust particles. However, the difference in the organic synthesis on respective dust particles in the early solar system remains unclear. We found micrometer-scale heterogeneous distributions of diverse CHN(1-2) and CHN(1-2)O compounds in two primitive meteorites: the Murchison and NWA 801, using a surface-assisted laser desorption/ionization system connected to a high mass resolution mass spectrometer. These compounds contained mutual relationships of +/- H(2), +/- CH(2), +/- H(2)O, and +/- CH(2)O and showed highly similar distributions, indicating that they are the products of series reactions. The heterogeneity was caused by the micro-scale difference in the abundance of these compounds and the extent of the series reactions, indicating that these compounds formed on respective dust particles before asteroid accretion. The results of the present study provide evidence of heterogeneous volatile compositions and the extent of organic reactions among the dust particles that formed carbonaceous asteroids. The compositions of diverse small organic compounds associated with respective dust particles in meteorites are useful to understand different histories of volatile evolution in the early solar system" |
| Notes: | "PubMed-not-MEDLINEFurukawa, Yoshihiro Saigusa, Daisuke Kano, Kuniyuki Uruno, Akira Saito, Ritsumi Ito, Motoo Matsumoto, Megumi Aoki, Junken Yamamoto, Masayuki Nakamura, Tomoki eng 17K18800/Japan Society for the Promotion of Science/ 18K18795/Japan Society for the Promotion of Science/ AB041001/National Institutes of Natural Sciences/ England 2023/04/25 Sci Rep. 2023 Apr 24; 13(1):6683. doi: 10.1038/s41598-023-33595-0" |
