Ontology highlight
ABSTRACT:
SUBMITTER: Krot AN
PROVIDER: S-EPMC7567603 | biostudies-literature | 2020 Oct
REPOSITORIES: biostudies-literature
Krot Alexander N AN Nagashima Kazuhide K Lyons James R JR Lee Jeong-Eun JE Bizzarro Martin M
Science advances 20201016 42
The Sun is <sup>16</sup>O-enriched (Δ<sup>17</sup>O = -28.4 ± 3.6‰) relative to the terrestrial planets, asteroids, and chondrules (-7‰ < Δ<sup>17</sup>O < 3‰). Ca,Al-rich inclusions (CAIs), the oldest Solar System solids, approach the Sun's Δ<sup>17</sup>O. Ultraviolet CO self-shielding resulting in formation of <sup>16</sup>O-rich CO and <sup>17,18</sup>O-enriched water is the currently favored mechanism invoked to explain the observed range of Δ<sup>17</sup>O. However, the location of CO self ...[more]