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Zinc isotope anomalies in primitive meteorites identify the outer solar system as an important source of Earth's volatile inventory
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dc.contributor.author | Savage, Paul S. | |
dc.contributor.author | Moynier, Frédéric | |
dc.contributor.author | Boyet, Maud | |
dc.date.accessioned | 2022-07-21T14:30:10Z | |
dc.date.available | 2022-07-21T14:30:10Z | |
dc.date.issued | 2022-11-01 | |
dc.identifier | 280536749 | |
dc.identifier | 934ad786-ac2a-4b28-a9e1-79b165ecd2c5 | |
dc.identifier | 85133675205 | |
dc.identifier | 000842895500003 | |
dc.identifier.citation | Savage , 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 . https://doi.org/10.1016/j.icarus.2022.115172 | en |
dc.identifier.issn | 0019-1035 | |
dc.identifier.other | RIS: urn:A938C3D3A8F9B20D31C8CCDFF4075C66 | |
dc.identifier.other | ORCID: /0000-0001-8464-0264/work/116275031 | |
dc.identifier.uri | https://hdl.handle.net/10023/25687 | |
dc.description | FM 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.abstract | The 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.format.extent | 7 | |
dc.format.extent | 3686577 | |
dc.language.iso | eng | |
dc.relation.ispartof | Icarus | en |
dc.subject | Meteorites | en |
dc.subject | Cosmochemistry | en |
dc.subject | Origin, solar system | en |
dc.subject | Accretion | en |
dc.subject | QB Astronomy | en |
dc.subject | QD Chemistry | en |
dc.subject | NDAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QD | en |
dc.title | Zinc isotope anomalies in primitive meteorites identify the outer solar system as an important source of Earth's volatile inventory | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Earth & Environmental Sciences | en |
dc.contributor.institution | University of St Andrews. St Andrews Centre for Exoplanet Science | en |
dc.contributor.institution | University of St Andrews. St Andrews Isotope Geochemistry | en |
dc.identifier.doi | 10.1016/j.icarus.2022.115172 | |
dc.description.status | Peer reviewed | en |
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