Potassium isotope heterogeneity in the early Solar System controlled by extensive evaporation and partial recondensation

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Potassium isotope heterogeneity in the early Solar System controlled by extensive evaporation and partial recondensation. / Hu, Yan; Moynier, Frédéric; Bizzarro, Martin.

In: Nature Communications, Vol. 13, 7669, 2022.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Hu, Y, Moynier, F & Bizzarro, M 2022, 'Potassium isotope heterogeneity in the early Solar System controlled by extensive evaporation and partial recondensation', Nature Communications, vol. 13, 7669. https://doi.org/10.1038/s41467-022-35362-7

APA

Hu, Y., Moynier, F., & Bizzarro, M. (2022). Potassium isotope heterogeneity in the early Solar System controlled by extensive evaporation and partial recondensation. Nature Communications, 13, [7669]. https://doi.org/10.1038/s41467-022-35362-7

Vancouver

Hu Y, Moynier F, Bizzarro M. Potassium isotope heterogeneity in the early Solar System controlled by extensive evaporation and partial recondensation. Nature Communications. 2022;13. 7669. https://doi.org/10.1038/s41467-022-35362-7

Author

Hu, Yan ; Moynier, Frédéric ; Bizzarro, Martin. / Potassium isotope heterogeneity in the early Solar System controlled by extensive evaporation and partial recondensation. In: Nature Communications. 2022 ; Vol. 13.

Bibtex

@article{99031292887f493e95b54895da473d28,

title = "Potassium isotope heterogeneity in the early Solar System controlled by extensive evaporation and partial recondensation",

abstract = "Volatiles are vital ingredients for a habitable planet. Angrite meteorites sample the most volatile-depleted planetesimal in the Solar System, particularly for the alkali elements. They are prime targets for investigating the formation of volatile-poor rocky planets, yet their exceptionally low volatile content presents a major analytical challenge. Here, we leverage improved sensitivity and precision of K isotopic analysis to constrain the mechanism of extreme K depletion (>99.8%) in angrites. In contrast with the isotopically heavy Moon and Vesta, we find that angrites are strikingly depleted in the heavier K isotopes, which is best explained by partial recondensation of vaporized K following extensive evaporation on the angrite parent body (APB) during magma-ocean stage. Therefore, the APB may provide a rare example of isotope fractionation controlled by condensation, rather than evaporation, at a planetary scale. Furthermore, nebula-wide K isotopic variations primarily reflect volatility-driven fractionations instead of presolar nucleosynthetic heterogeneity proposed previously.",

author = "Yan Hu and Fr{\'e}d{\'e}ric Moynier and Martin Bizzarro",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

doi = "10.1038/s41467-022-35362-7",

language = "English",

volume = "13",

journal = "Nature Communications",

issn = "2041-1723",

publisher = "nature publishing group",

}

RIS

TY - JOUR

T1 - Potassium isotope heterogeneity in the early Solar System controlled by extensive evaporation and partial recondensation

AU - Hu, Yan

AU - Moynier, Frédéric

AU - Bizzarro, Martin

PY - 2022

Y1 - 2022

N2 - Volatiles are vital ingredients for a habitable planet. Angrite meteorites sample the most volatile-depleted planetesimal in the Solar System, particularly for the alkali elements. They are prime targets for investigating the formation of volatile-poor rocky planets, yet their exceptionally low volatile content presents a major analytical challenge. Here, we leverage improved sensitivity and precision of K isotopic analysis to constrain the mechanism of extreme K depletion (>99.8%) in angrites. In contrast with the isotopically heavy Moon and Vesta, we find that angrites are strikingly depleted in the heavier K isotopes, which is best explained by partial recondensation of vaporized K following extensive evaporation on the angrite parent body (APB) during magma-ocean stage. Therefore, the APB may provide a rare example of isotope fractionation controlled by condensation, rather than evaporation, at a planetary scale. Furthermore, nebula-wide K isotopic variations primarily reflect volatility-driven fractionations instead of presolar nucleosynthetic heterogeneity proposed previously.

AB - Volatiles are vital ingredients for a habitable planet. Angrite meteorites sample the most volatile-depleted planetesimal in the Solar System, particularly for the alkali elements. They are prime targets for investigating the formation of volatile-poor rocky planets, yet their exceptionally low volatile content presents a major analytical challenge. Here, we leverage improved sensitivity and precision of K isotopic analysis to constrain the mechanism of extreme K depletion (>99.8%) in angrites. In contrast with the isotopically heavy Moon and Vesta, we find that angrites are strikingly depleted in the heavier K isotopes, which is best explained by partial recondensation of vaporized K following extensive evaporation on the angrite parent body (APB) during magma-ocean stage. Therefore, the APB may provide a rare example of isotope fractionation controlled by condensation, rather than evaporation, at a planetary scale. Furthermore, nebula-wide K isotopic variations primarily reflect volatility-driven fractionations instead of presolar nucleosynthetic heterogeneity proposed previously.

U2 - 10.1038/s41467-022-35362-7

DO - 10.1038/s41467-022-35362-7

M3 - Journal article

C2 - 36509778

AN - SCOPUS:85143992862

VL - 13

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 7669

ER -

ID: 335421179

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