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Igneous meteorites suggest Aluminium-26 heterogeneity in the early Solar Nebula

Author

Listed:
  • Evgenii Krestianinov

    (Australian National University)

  • Yuri Amelin

    (Australian National University
    Chinese Academy of Sciences
    Ochang, Cheongwon)

  • Qing-Zhu Yin

    (University of California, Davis)

  • Paige Cary

    (University of California, Davis)

  • Magdalena H. Huyskens

    (University of California, Davis)

  • Audrey Miller

    (University of California, Davis)

  • Supratim Dey

    (University of California, Davis)

  • Yuki Hibiya

    (University of Tokyo
    University of Tokyo)

  • Haolan Tang

    (University of California, Los Angeles)

  • Edward D. Young

    (University of California, Los Angeles)

  • Andreas Pack

    (Georg-August-Universität Göttingen)

  • Tommaso Rocco

    (Georg-August-Universität Göttingen)

Abstract

The short-lived radionuclide aluminium-26 (26Al) isotope is a major heat source for early planetary melting. The aluminium-26 – magnesium-26 (26Al-26Mg) decay system also serves as a high-resolution relative chronometer. In both cases, however, it is critical to establish whether 26Al was homogeneously or heterogeneously distributed throughout the solar nebula. Here we report a precise lead-207 – lead-206 (207Pb-206Pb) isotopic age of 4565.56 ± 0.12 million years (Ma) for the andesitic achondrite Erg Chech 002. Our analysis, in conjunction with published 26Al-26Mg data, reveals that the initial 26Al/27Al in the source material of this achondrite was notably higher than in various other well-preserved and precisely dated achondrites. Here we demonstrate that the current data clearly indicate spatial heterogeneity of 26Al by a factor of 3-4 in the precursor molecular cloud or the protoplanetary disk of the Solar System, likely associated with the late infall of stellar materials with freshly synthesized radionuclides.

Suggested Citation

  • Evgenii Krestianinov & Yuri Amelin & Qing-Zhu Yin & Paige Cary & Magdalena H. Huyskens & Audrey Miller & Supratim Dey & Yuki Hibiya & Haolan Tang & Edward D. Young & Andreas Pack & Tommaso Rocco, 2023. "Igneous meteorites suggest Aluminium-26 heterogeneity in the early Solar Nebula," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40026-1
    DOI: 10.1038/s41467-023-40026-1
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    References listed on IDEAS

    as
    1. Zoltan Vaci & James M. D. Day & Marine Paquet & Karen Ziegler & Qing-Zhu Yin & Supratim Dey & Audrey Miller & Carl Agee & Rainer Bartoschewitz & Andreas Pack, 2021. "Author Correction: Olivine-rich achondrites from Vesta and the missing mantle problem," Nature Communications, Nature, vol. 12(1), pages 1-1, December.
    2. Zoltan Vaci & James M. D. Day & Marine Paquet & Karen Ziegler & Qing-Zhu Yin & Supratim Dey & Audrey Miller & Carl Agee & Rainer Bartoschewitz & Andreas Pack, 2021. "Olivine-rich achondrites from Vesta and the missing mantle problem," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    3. Richard C. Greenwood & Ian A. Franchi & Albert Jambon & Paul C. Buchanan, 2005. "Widespread magma oceans on asteroidal bodies in the early Solar System," Nature, Nature, vol. 435(7044), pages 916-918, June.
    4. Poorna Srinivasan & Daniel R. Dunlap & Carl B. Agee & Meenakshi Wadhwa & Daniel Coleff & Karen Ziegler & Ryan Zeigler & Francis M. McCubbin, 2018. "Silica-rich volcanism in the early solar system dated at 4.565 Ga," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
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