Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples
文献类型：期刊论文
| 作者 | Nakamura, T.2; Matsumoto, M.2; Amano, K.2; Enokido, Y.2; Zolensky, M. E.3; Mikouchi, T.4; Genda, H.5; Tanaka, S.6,7; Zolotov, M. Y.8; Kurosawa, K.9 |
| 刊名 | SCIENCE
 |
| 出版日期 | 2023-02-24 |
| 卷号 | 379期号:6634页码:787-+ |
| ISSN号 | 0036-8075 |
| DOI | 10.1126/science.abn8671 |
| 英文摘要 | Samples of the carbonaceous asteroid Ryugu were brought to Earth by the Hayabusa2 spacecraft. We analyzed 17 Ryugu samples measuring 1 to 8 millimeters. Carbon dioxide-bearing water inclusions are present within a pyrrhotite crystal, indicating that Ryugu's parent asteroid formed in the outer Solar System. The samples contain low abundances of materials that formed at high temperatures, such as chondrules and calcium- and aluminum-rich inclusions. The samples are rich in phyllosilicates and carbonates, which formed through aqueous alteration reactions at low temperature, high pH, and water/rock ratios of <1 (by mass). Less altered fragments contain olivine, pyroxene, amorphous silicates, calcite, and phosphide. Numerical simulations, based on the mineralogical and physical properties of the samples, indicate that Ryugu's parent body formed similar to 2 million years after the beginning of Solar System formation. |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000981670800002 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74423]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Nakamura, T. |
| 作者单位 | 1.Shizuoka Univ, Dept Geosci, Shizuoka 4228529, Japan 2.Tohoku Univ, Dept Earth Sci, Sendai, Miyagi 9808578, Japan 3.NASA Johnson Space Ctr Houston, Houston, TX 77058 USA 4.Univ Tokyo, Univ Museum, Tokyo 1130033, Japan 5.Tokyo Inst Technol, Earth Life Sci Inst, Tokyo 1528550, Japan 6.Japan Aerosp Explorat Agcy JAXA, Inst Space & Astronaut Sci, Sagamihara 2525210, Japan 7.Grad Univ Adv Studies SOKENDAI, Dept Space & Astronaut Sci, Hayama, Kanagawa 2400193, Japan 8.Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA 9.Chiba Inst Technol, Planetary Explorat Res Ctr, Narashino, Chiba 2750016, Japan 10.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA |
| 推荐引用方式 GB/T 7714 | Nakamura, T.,Matsumoto, M.,Amano, K.,et al. Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples[J]. SCIENCE,2023,379(6634):787-+. |
| APA | Nakamura, T..,Matsumoto, M..,Amano, K..,Enokido, Y..,Zolensky, M. E..,...&Tsuda, Y..(2023).Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples.SCIENCE,379(6634),787-+. |
| MLA | Nakamura, T.,et al."Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples".SCIENCE 379.6634(2023):787-+. |
入库方式： OAI收割
来源：广州地球化学研究所
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