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dc.contributor.authorSavage, Paul S.
dc.contributor.authorMoynier, Frédéric
dc.contributor.authorBoyet, Maud
dc.identifier.citationSavage , P S , Moynier , F & Boyet , M 2022 , ' Zinc isotope anomalies in primitive meteorites identify the outer solar system as an important source of Earth's volatile inventory ' , Icarus , vol. 386 , 115172 .
dc.identifier.otherPURE: 280536749
dc.identifier.otherPURE UUID: 934ad786-ac2a-4b28-a9e1-79b165ecd2c5
dc.identifier.otherRIS: urn:A938C3D3A8F9B20D31C8CCDFF4075C66
dc.identifier.otherScopus: 85133675205
dc.identifier.otherORCID: /0000-0001-8464-0264/work/116275031
dc.identifier.otherWOS: 000842895500003
dc.descriptionFM acknowledge funding from ERC grant agreement No. 101001282 (METAL), the UnivEarthS Labex program (numbers: ANR-10-LABX-0023 and ANR-11-IDEX-0005-02), the IPGP multidisciplinary program PARI, the Region île-de-France SESAME Grants no. 12015908, EX047016, and the IdEx Université de Paris grant, ANR-18-IDEX-0001 and the DIM ACAV+.en
dc.description.abstractThe source of and timing of delivery of the volatile elements to Earth is a question that is fundamental to understanding how our planet evolved. Here, we show that primitive meteorites have resolved mass-independent Zn isotope anomalies from the terrestrial reservoir. Carbonaceous chondrites (CC), likely originating from the outer Solar System are distinct from non-CC, and Earth is intermediate between these two components. Modelling based on these data indicates that around 30% of Earth's budget of Zn and other moderately volatile material derives from the participation of 6% of CC-like materials during Earth's accretion, with the remaining coming from NC meteorites. This implies that, despite the relatively minor mass of Earth thought to derive from CC-like material, the CC component of Earth was relatively and significantly volatile-enriched; this is in line with the observation that the terrestrial elemental abundance pattern of moderately volatile elements could be explained by a carbonaceous source, and with the carbonaceous chondrite-like isotopic budget of more volatile-rich material accreted later in Earth's accretion history (e.g. Hg, Se, N, noble gases).
dc.rightsCopyright © 2022 The Authors. This is an open access article under the CC BY-NC-ND license (
dc.subjectOrigin, solar systemen
dc.subjectQB Astronomyen
dc.subjectQD Chemistryen
dc.titleZinc isotope anomalies in primitive meteorites identify the outer solar system as an important source of Earth's volatile inventoryen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Earth & Environmental Sciencesen
dc.contributor.institutionUniversity of St Andrews. St Andrews Centre for Exoplanet Scienceen
dc.contributor.institutionUniversity of St Andrews. St Andrews Isotope Geochemistryen
dc.description.statusPeer revieweden

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