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The Tharsis mantle source of depleted shergottites revealed by 90 million impact craters

Author

Listed:
  • A. Lagain

    (Curtin University)

  • G. K. Benedix

    (Curtin University
    Western Australian Museum
    Planetary Sciences Institute)

  • K. Servis

    (Curtin University
    CSIRO—Pawsey Supercomputing Centre)

  • D. Baratoux

    (University of Toulouse, CNRS & IRD
    University Félix Houphouët-Boigny, UFR Sciences de la Terre et des Ressources Minières)

  • L. S. Doucet

    (Curtin University)

  • A. Rajšic

    (Curtin University)

  • H. A. R. Devillepoix

    (Curtin University)

  • P. A. Bland

    (Curtin University)

  • M. C. Towner

    (Curtin University)

  • E. K. Sansom

    (Curtin University)

  • K. Miljković

    (Curtin University)

Abstract

The only martian rock samples on Earth are meteorites ejected from the surface of Mars by asteroid impacts. The locations and geological contexts of the launch sites are currently unknown. Determining the impact locations is essential to unravel the relations between the evolution of the martian interior and its surface. Here we adapt a Crater Detection Algorithm that compile a database of 90 million impact craters, allowing to determine the potential launch position of these meteorites through the observation of secondary crater fields. We show that Tooting and 09-000015 craters, both located in the Tharsis volcanic province, are the most likely source of the depleted shergottites ejected 1.1 million year ago. This implies that a major thermal anomaly deeply rooted in the mantle under Tharsis was active over most of the geological history of the planet, and has sampled a depleted mantle, that has retained until recently geochemical signatures of Mars’ early history.

Suggested Citation

  • A. Lagain & G. K. Benedix & K. Servis & D. Baratoux & L. S. Doucet & A. Rajšic & H. A. R. Devillepoix & P. A. Bland & M. C. Towner & E. K. Sansom & K. Miljković, 2021. "The Tharsis mantle source of depleted shergottites revealed by 90 million impact craters," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26648-3
    DOI: 10.1038/s41467-021-26648-3
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    References listed on IDEAS

    as
    1. David Baratoux & Michael J. Toplis & Marc Monnereau & Olivier Gasnault, 2011. "Erratum: Thermal history of Mars inferred from orbital geochemistry of volcanic provinces," Nature, Nature, vol. 475(7355), pages 254-254, July.
    2. Sylvain Bouley & David Baratoux & Isamu Matsuyama & Francois Forget & Antoine Séjourné & Martin Turbet & Francois Costard, 2016. "Late Tharsis formation and implications for early Mars," Nature, Nature, vol. 531(7594), pages 344-347, March.
    3. David Baratoux & Michael J. Toplis & Marc Monnereau & Olivier Gasnault, 2011. "Thermal history of Mars inferred from orbital geochemistry of volcanic provinces," Nature, Nature, vol. 472(7343), pages 338-341, April.
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    Cited by:

    1. A. Lagain & S. Bouley & B. Zanda & K. Miljković & A. Rajšić & D. Baratoux & V. Payré & L. S. Doucet & N. E. Timms & R. Hewins & G. K. Benedix & V. Malarewic & K. Servis & P. A. Bland, 2022. "Early crustal processes revealed by the ejection site of the oldest martian meteorite," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Rui Xu & Zhiyong Xiao & Fanglu Luo & Yichen Wang & Jun Cui, 2023. "Untrackable distal ejecta on planetary surfaces," Nature Communications, Nature, vol. 14(1), pages 1-14, December.

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