Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites
文献类型：期刊论文
| 作者 | Yokoyama, Tetsuya2; Nagashima, Kazuhide3; Nakai, Izumi4; Young, Edward D.5; Abe, Yoshinari6; Aleon, Jerome7; Alexander, Conel M. O'D.8; Amari, Sachiko9,10; Amelin, Yuri11; Bajo, Ken-ichi12 |
| 刊名 | SCIENCE
 |
| 出版日期 | 2023-02-24 |
| 卷号 | 379期号:6634页码:786-+ |
| ISSN号 | 0036-8075 |
| DOI | 10.1126/science.abn7850 |
| 英文摘要 | Carbonaceous meteorites are thought to be fragments of C-type (carbonaceous) asteroids. Samples of the C-type asteroid (162173) Ryugu were retrieved by the Hayabusa2 spacecraft. We measured the mineralogy and bulk chemical and isotopic compositions of Ryugu samples. The samples are mainly composed of materials similar to those of carbonaceous chondrite meteorites, particularly the CI (Ivuna-type) group. The samples consist predominantly of minerals formed in aqueous fluid on a parent planetesimal. The primary minerals were altered by fluids at a temperature of 37 degrees +/- 10 degrees C, about 5.2(-0.7)(+0.8) million (statistical) or 5.2(-2.1)(+1.6) million (systematic) years after the formation of the first solids in the Solar System. After aqueous alteration, the Ryugu samples were likely never heated above similar to 100 degrees C. The samples have a chemical composition that more closely resembles that of the Sun's photosphere than other natural samples do. |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000981670800001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74417]  |
| 专题 | 中国科学院广州地球化学研究所 |
| 通讯作者 | Yokoyama, Tetsuya |
| 作者单位 | 1.Kanagawa Inst Technol, Grad Sch Engn, Atsugi 2430292, Japan 2.Tokyo Inst Technol, Dept Earth & Planetary Sci, Tokyo 1528551, Japan 3.Univ Hawaii Manoa, Hawaii Inst Geophys & Planetol, Honolulu, HI 96822 USA 4.Tokyo Univ Sci, Dept Appl Chem, Tokyo 1628601, Japan 5.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA 90095 USA 6.Tokyo Denki Univ, Grad Sch Engn Mat Sci & Engn, Tokyo 1208551, Japan 7.Sorbonne Univ, Inst Mineral Phys Mat & Cosmochim, CNRS, Inst Rech Dev,UMR 7590, F-75005 Paris, France 8.Carnegie Inst Sci, Earth & Planets Lab, Washington, DC 20015 USA 9.Washington Univ, McDonnell Ctr Space Sci, St Louis, MO 63130 USA 10.Washington Univ, Phys Dept, St Louis, MO 63130 USA |
| 推荐引用方式 GB/T 7714 | Yokoyama, Tetsuya,Nagashima, Kazuhide,Nakai, Izumi,et al. Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites[J]. SCIENCE,2023,379(6634):786-+. |
| APA | Yokoyama, Tetsuya.,Nagashima, Kazuhide.,Nakai, Izumi.,Young, Edward D..,Abe, Yoshinari.,...&Yurimoto, Hisayoshi.(2023).Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites.SCIENCE,379(6634),786-+. |
| MLA | Yokoyama, Tetsuya,et al."Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites".SCIENCE 379.6634(2023):786-+. |
入库方式： OAI收割
来源：广州地球化学研究所
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