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Emplacement of the Argyle diamond deposit into an ancient rift zone triggered by supercontinent breakup

Author

Listed:
  • Hugo K. H. Olierook

    (Curtin University
    Curtin University)

  • Denis Fougerouse

    (Curtin University)

  • Luc S. Doucet

    (Curtin University
    China University of Geosciences)

  • Yebo Liu

    (Curtin University)

  • Murray J. Rayner

    (Rio Tinto)

  • Martin Danišík

    (Curtin University)

  • Daniel J. Condon

    (British Geological Survey, Keyworth)

  • Brent I. A. McInnes

    (Curtin University)

  • A. Lynton Jaques

    (Australian National University)

  • Noreen J. Evans

    (Curtin University)

  • Bradley J. McDonald

    (Curtin University)

  • Zheng-Xiang Li

    (Curtin University
    Laoshan Laboratory)

  • Christopher L. Kirkland

    (Curtin University)

  • Celia Mayers

    (Curtin University)

  • Michael T. D. Wingate

    (Curtin University
    Geological Survey of Western Australia)

Abstract

Argyle is the world’s largest source of natural diamonds, yet one of only a few economic deposits hosted in a Paleoproterozoic orogen. The geodynamic triggers responsible for its alkaline ultramafic volcanic host are unknown. Here we show, using U-Pb and (U-Th)/He geochronology of detrital apatite and detrital zircon, and U-Pb dating of hydrothermal titanite, that emplacement of the Argyle lamproite is bracketed between 1311 ± 9 Ma and 1257 ± 15 Ma (2σ), older than previously known. To form the Argyle lamproite diatreme complex, emplacement was likely driven by lithospheric extension related to the breakup of the supercontinent Nuna. Extension facilitated production of low-degree partial melts and their migration through transcrustal corridors in the Paleoproterozoic Halls Creek Orogen, a rheologically-weak rift zone adjacent to the Kimberley Craton. Diamondiferous diatreme emplacement during (super)continental breakup may be prevalent but hitherto under-recognized in rift zones at the edges of ancient continental blocks.

Suggested Citation

  • Hugo K. H. Olierook & Denis Fougerouse & Luc S. Doucet & Yebo Liu & Murray J. Rayner & Martin Danišík & Daniel J. Condon & Brent I. A. McInnes & A. Lynton Jaques & Noreen J. Evans & Bradley J. McDonal, 2023. "Emplacement of the Argyle diamond deposit into an ancient rift zone triggered by supercontinent breakup," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40904-8
    DOI: 10.1038/s41467-023-40904-8
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    References listed on IDEAS

    as
    1. Thomas M. Gernon & Stephen M. Jones & Sascha Brune & Thea K. Hincks & Martin R. Palmer & John C. Schumacher & Rebecca M. Primiceri & Matthew Field & William L. Griffin & Suzanne Y. O’Reilly & Derek Ke, 2023. "Rift-induced disruption of cratonic keels drives kimberlite volcanism," Nature, Nature, vol. 620(7973), pages 344-350, August.
    2. D. Graham Pearson & James M. Scott & Jingao Liu & Andrew Schaeffer & Lawrence Hongliang Wang & Jeroen Hunen & Kristoffer Szilas & Thomas Chacko & Peter B. Kelemen, 2021. "Deep continental roots and cratons," Nature, Nature, vol. 596(7871), pages 199-210, August.
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