| Title: | Contribution of Ryugu-like material to Earth's volatile inventory by Cu and Zn isotopic analysis |
| Authors: | Paquet, Marine Browse this author |
| Moynier, Frederic Browse this author |
| Yokoyama, Tetsuya Browse this author |
| Dai, Wei Browse this author |
| Hu, Yan Browse this author |
| Abe, Yoshinari Browse this author |
| Aleon, Jerome Browse this author |
| O'D. Alexander, Conel M. Browse this author |
| Amari, Sachiko Browse this author |
| Amelin, Yuri Browse this author |
| Bajo, Ken-ichi Browse this author |
| Bizzarro, Martin Browse this author |
| Bouvier, Audrey Browse this author |
| Carlson, Richard W. Browse this author |
| Chaussidon, Marc Browse this author |
| Choi, Byeon-Gak Browse this author |
| Dauphas, Nicolas Browse this author |
| Davis, Andrew M. Browse this author |
| Di Rocco, Tommaso Browse this author |
| Fujiya, Wataru Browse this author |
| Fukai, Ryota Browse this author |
| Gautam, Ikshu Browse this author |
| Haba, Makiko K. Browse this author |
| Hibiya, Yuki Browse this author |
| Hidaka, Hiroshi Browse this author |
| Homma, Hisashi Browse this author |
| Hoppe, Peter Browse this author |
| Huss, Gary R. Browse this author |
| Ichida, Kiyohiro Browse this author |
| Iizuka, Tsuyoshi Browse this author |
| Ireland, Trevor R. Browse this author |
| Ishikawa, Akira Browse this author |
| Ito, Motoo Browse this author |
| Itoh, Shoichi Browse this author |
| Kawasaki, Noriyuki Browse this author |
| Kita, Noriko T. Browse this author |
| Kitajima, Kouki Browse this author |
| Kleine, Thorsten Browse this author |
| Komatani, Shintaro Browse this author |
| Krot, Alexander N. Browse this author |
| Liu, Ming-Chang Browse this author |
| Masuda, Yuki Browse this author |
| McKeegan, Kevin D. Browse this author |
| Morita, Mayu Browse this author |
| Motomura, Kazuko Browse this author |
| Nakai, Izumi Browse this author |
| Nagashima, Kazuhide Browse this author |
| Nesvorny, David Browse this author |
| Nguyen, Ann N. Browse this author |
| Nittler, Larry Browse this author |
| Onose, Morihiko Browse this author |
| Pack, Andreas Browse this author |
| Park, Changkun Browse this author |
| Piani, Laurette Browse this author |
| Qin, Liping Browse this author |
| Russell, Sara S. Browse this author |
| Sakamoto, Naoya Browse this author |
| Schoenbaechler, Maria Browse this author |
| Tafla, Lauren Browse this author |
| Tang, Haolan Browse this author |
| Terada, Kentaro Browse this author |
| Terada, Yasuko Browse this author |
| Usui, Tomohiro Browse this author |
| Wada, Sohei Browse this author |
| Wadhwa, Meenakshi Browse this author |
| Walker, Richard J. Browse this author |
| Yamashita, Katsuyuki Browse this author |
| Yin, Qing-Zhu Browse this author |
| Yoneda, Shigekazu Browse this author |
| Young, Edward D. Browse this author |
| Yui, Hiroharu Browse this author |
| Zhang, Ai-Cheng Browse this author |
| Nakamura, Tomoki Browse this author |
| Naraoka, Hiroshi Browse this author |
| Noguchi, Takaaki Browse this author |
| Okazaki, Ryuji Browse this author |
| Sakamoto, Kanako Browse this author |
| Yabuta, Hikaru Browse this author |
| Abe, Masanao Browse this author |
| Miyazaki, Akiko Browse this author |
| Nakato, Aiko Browse this author |
| Nishimura, Masahiro Browse this author |
| Okada, Tatsuaki Browse this author |
| Yada, Toru Browse this author |
| Yogata, Kasumi Browse this author |
| Nakazawa, Satoru Browse this author |
| Saiki, Takanao Browse this author |
| Tanaka, Satoshi Browse this author |
| Terui, Fuyuto Browse this author |
| Tsuda, Yuichi Browse this author |
| Watanabe, Sei-ichiro Browse this author |
| Yoshikawa, Makoto Browse this author |
| Tachibana, Shogo Browse this author |
| Yurimoto, Hisayoshi Browse this author →KAKEN DB |
| Issue Date: | 12-Dec-2022 |
| Publisher: | Nature Portfolio |
| Journal Title: | Nature astronomy |
| Volume: | 7 |
| Issue: | 2 |
| Start Page: | 182 |
| End Page: | 189 |
| Publisher DOI: | 10.1038/s41550-022-01846-1 |
| Abstract: | Initial analyses showed that asteroid Ryugu's composition is close to CI (Ivuna-like) carbonaceous chondrites (CCs) - the chemically most primitive meteorites, characterized by near-solar abundances for most elements. However, some isotopic signatures (for example, Ti, Cr) overlap with other CC groups, so the details of the link between Ryugu and the CI chondrites are not yet fully clear. Here we show that Ryugu and CI chondrites have the same zinc and copper isotopic composition. As the various chondrite groups have very distinct Zn and Cu isotopic signatures, our results point at a common genetic heritage between Ryugu and CI chondrites, ruling out any affinity with other CC groups. Since Ryugu's pristine samples match the solar elemental composition for many elements, their Zn and Cu isotopic compositions likely represent the best estimates of the solar composition. Earth's mass-independent Zn isotopic composition is intermediate between Ryugu/CC and non-carbonaceous chondrites (NCs), suggesting a contribution of Ryugu-like material to Earth's budgets of Zn and other moderately volatile elements. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/89818 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
