@article{TEXTUAL,
      recid = {11055},
      author = {Kawasaki, Noriyuki and Nagashima, Kazuhide and Sakamoto,  Naoya and Matsumoto, Toru and Bajo, Ken-Ichi and Wada,  Sohei and Igami, Yohei and Miyake, Akira and Noguchi,  Takaaki and Yamamoto, Daiki and Russell, Sara S. and Abe,  Yoshinari and Aléon, Jérôme and Alexander, Conel M. and  Amari, Sachiko and Amelin, Yuri and Bizzarro, Martin and  Bouvier, Audrey and Carlson, Richard W. and Chaussidon,  Marc and Dauphas, Nicolas and Davis, Andrew M.},
      title = {Oxygen isotopes of anhydrous primary minerals show kinship  between asteroid Ryugu and comet 81P/Wild2},
      journal = {Science Advances},
      address = {2022-12-16},
      number = {TEXTUAL},
      abstract = {The extraterrestrial materials returned from asteroid  (162173) Ryugu consist predominantly of low-temperature  aqueously formed secondary minerals and are chemically and  mineralogically similar to CI (Ivuna-type) carbonaceous  chondrites. Here, we show that high-temperature anhydrous  primary minerals in Ryugu and CI chondrites exhibit a  bimodal distribution of oxygen isotopic compositions:  <sup>16</sup>O-rich (associated with refractory inclusions)  and 16O-poor (associated with chondrules). Both the  <sup>16</sup>O-rich and <sup>16</sup>O-poor minerals  probably formed in the inner solar protoplanetary disk and  were subsequently transported outward. The abundance ratios  of the <sup>16</sup>O-rich to <sup>16</sup>O-poor minerals  in Ryugu and CI chondrites are higher than in other  carbonaceous chondrite groups but are similar to that of  comet 81P/Wild2, suggesting that Ryugu and CI chondrites  accreted in the outer Solar System closer to the accretion  region of comets.},
      url = {http://knowledge.uchicago.edu/record/11055},
}